Omega LDP 146 User Manual

User's Guide  
e-mail: info  
@omega.com  
LDP-124, LDP-126, LDP-144 AND LDP-146  
OPERATOR´S MANUAL FOR CLOCK MODELS  
CONTENTS  
DESCRIPTION  
SECTION PAGE  
===========================================================================  
IMPORTANT SAFETY CONSIDERATIONS  
UNPACKING AND INSPECTION  
MAIN FEATURES  
1
2
3
3
4
4
MODELS  
4
5
5
5
5
MODEL LDP-1XX-C0, DISPLAY TIME USING THE FORMAT MM : SS  
MODEL LDP-1XX-C1, DISPLAY TIME USING THE FORMAT HH : MM  
MODEL LDP-1XX-C2, DISPLAY TIME USING THE FORMAT HH : MM : SS  
4.1  
4.2  
4.3  
GENERAL SPECIFICATIONS  
FRONT VIEW, DESCRIPTION  
5
6
6
7
REAR VIEW, DESCRIPTION  
WIRING  
7
8
7
8
POWER SUPPLY, RECOMMENDED WIRING  
FUSES  
8.1  
8.2  
8
8
CONTROL LINES, ALARM AND SERIAL OUTPUT  
NOTES  
8.3  
8.4  
8.5  
8
8
9
EXCITATION VOLTAGE FOR SENSORS  
POWER- UP AND OPERATION  
9
9
REAL TIME CLOCK  
RUN TIME CLOCK  
9.1  
9.2  
9
9
UP / DOWN TIMING  
CONNECTION EXAMPLES  
RUN TIME ALARM SETTING  
9.2.1  
9.2.2  
9.3  
9
10  
10  
SERIAL DATA OUTPUT  
9.4  
10  
CONFIGURATION  
10  
10  
POWER SELECTION  
10.1  
10.2  
10  
10  
11  
11  
11  
INSTRUMENT CONFIGURATION  
CONTROL BOARD POSITION  
DIP SWITCH AND JUMPERS LOCATION  
DIP SWITCH CONFIGURATION  
10.2.1  
10.2.2  
10.2.3  
JUMPERS CONFIGURATION  
10.2.4  
10.2.5  
12  
12  
SERIAL DATA OUTPUT CONFIGURATION  
INSTALLATION  
11  
12  
13  
MECHANICAL DIMENSIONS  
13  
14  
APPENDIX 1: LDP-1XX-CX AS SLAVE REPEATER  
APPENDIX 2: TIME-NET CONFIGURATION AND CONNECTIONS  
15  
16  
17  
WARRANTY  
OTHER PRODUCTS  
Page : 2  
1.- IMPORTANT SAFETY CONSIDERATIONS  
INSTALLATION  
PRECAUTIONS.-  
SAFETY CONSIDERATIONS  
The installation and the  
future use of this unit  
must be done by suit-  
able qualified person-  
nel. The unit has not AC  
(mains) switch, it will be  
in operation as soon as  
power is connected.  
The installation must  
PRESCRIPTIONS.-  
Before starting any operation of adjustment, replacement,  
maintenance or repair, the unit must be disconnected from any kind  
of power supply.  
Keep the unit clean , to assure good functioning and performance.  
Use for it a clean and humid rag. Do not use for the frontal lens  
abrasive products, solvents, alcohol, etc... because its transparence  
could be damaged and this may cause difficulty for a correct vision  
of the reading.  
incorporate an external main switch.  
The unit has a protection fuse incorporated on the AC socket, if it is  
necessary to change or replace, use the time lag fuse according IEC  
127/2 and the values indicated below.  
To prevent electrical or  
fire hazard, do not ex-  
pose the unit to exces-  
sive moisture.  
Do not operate the unit  
200 mA when the unit is operating at 230 Vac  
400 mA when the unit is operating at 115 Vac.  
inthepresenceofflam-  
mable gases or fumes,  
such as environment  
constitutes a definite  
Install also the necessary devices to protect the operator and the  
process when using the unit to control a machine or process where  
injury to personnel or damage to equipment or process, may occur as  
a result of failure of the unit.  
See paragraph 8, WIRING and paragraph 10, CONFIGURATION and  
check that all jumpers are on the correct position.  
safety hazard. The unit  
is designed to be mounted in a metal panel.  
If the unit shows signs of damage, or is not able to show the expected  
measures, or has been stored in a bad conditions or a protection  
failure can occur, then do not attempt to operate and keep the unit out  
of service.  
SAFETY PRESCRIPTIONS.-  
The unit has been designed and tested under EN-61010-1 rules and  
is delivered in good condition. This opera-  
tor's manual contains useful information  
for electrical connections. Do not make  
wiring signal changes or connections  
when power is  
IN CASE OF FIRE  
1.- Disconnect the unit from the power supply.  
2.- Give the alarm according to the local rules.  
applied to the unit. Make signal connec-  
tions before power is applied and, if recon-  
nection is required, disconnect the AC  
(mains) power before such wiring is at-  
tempted.  
Install the unit in places with a good ventilation to avoid the excessive  
heating. And far from electrical noise source or magnetic field genera-  
tors such as power relays, electrical motors, speed controls etc...  
The unit cannot be installed in open places. Do not use until the  
installation is finished.  
3.- Switch off all the air conditioning devices.  
4.- Attack the fire with carbonic snow, do not use water in any case.  
WARNING : In closed areas do not use systems with  
vaporized liquids.  
POWER SUPPLY.-  
The power supply must be connected to the adequate terminals (see  
the connection instructions). The characteristics of the power supply  
areshowedonthelabelontherearpart. Pleasemakesurethattheunit  
is correctly connected to a power supply of the correct voltage and  
frequency.  
CONNECTIONS  
Do not use other power supply otherwise permanent damage may be  
caused to the unit.  
Do not connect the unit to power sources heavily loaded or to circuits  
which power loads in cycle ON-OFF or to circuits which power  
inductive loads.  
All wiring connections are made using push-in and Sub-D cable  
connectors.  
There is a separate connector block for power supply and  
input&control signal. Please make sure that each connector block is  
connected on the adequate place.  
2
The wire cross section recommended for power supply is 2.5 mm .  
SIGNAL WIRING.-  
Certain considerations must be given when install the signal input and  
control wires. If the wires are longs can act like an antenna and  
introduce the electrical noise to the unit, therefore :  
PANEL MOUNTING  
Verify that the panel cut-out is correctly according to the dimensions  
indicated on page 13 with a minimum depth of 150 mm. (5.9").  
Install the fixation pieces in the lateral guides of the unit by its rear  
part and then turn the screw firmly against the panel, until the unit is  
totally hold on.  
Do not install the signal input or control wires in the same conduit with  
power lines, heaters, solenoids, SCR controls etc....and always far  
from these elements.  
When shielded wires are used, connect the shield to the common  
terminal and leave unconnected the other end of the shield and do not  
connect to the machine ground.  
See paragraph 12 on page 13.  
Page : 3  
2.- UNPACKING AND INSPECTION  
It is advisable to do a detailed reading of this Manual before mounting the instrument. This Operator's Manual  
contains all the technical specifications : electricals as well as mechanics, both necessary to do a correct  
installation and also a good use of the instrument.  
At the same time the user will acquire the knowledge needed to obtain the best performances of the product.  
Check that inside the present cardboard box, there are the following :  
1 Instrument Model LDP-1XX-C0, C1 or C2.  
1 Operator's Manual.  
1 Connector for Power Supply.  
1 Screw-clamp connectors, 4 pins female for alarm output.  
1 Sub-D male connector of 9 pins and 1Sub-D female connector of 15 pins  
2 Pieces for fixing the unit against the panel.  
If there are some doubts or inquiries about the present instrument, please contact OMEGA  
ENGINEERING´S customer service department.  
When the shipment arrives remove the Packing List and verify that you have received all equipment.  
Then inspect the box and the instrument, and if there is evidence of damage caused by bad handling during  
the transport, it is advisable to make a careful inspection of all damages making a note of all of them and to  
pass on this information directly to the Transport Company.  
If this occurs but with insured material, ask the Transport Company for instructions about submitting a claim  
3.- MAIN FEATURES  
The Large Displays for real time clock (12 or 24 hours) or run up or run down clock are made up of  
four different series.  
The clock accepts inputs from contact closure and other sensor inputs to start, stop and reset the run  
time clock.  
Transducer excitation of 15 Vdc nominal is available. The units feature a run time alarm with optically  
isolated transistor switch output, and RS422 level two wire transmission of the displayed time.  
The main features of each serie are the following :  
Serie LDP-124-XX : 4 digits type LED, seven segments, red or green colour with 57 mm (2.3") height.  
Serie LDP-126-XX : 6 digits type LED, seven segments, red or green colour with 57 mm (2.3") height.  
Serie LDP-144-XX : 4 digits type LED, seven segments, red or green colour with 100 mm (4") height.  
Serie LDP-146-XX : 6 digits type LED, seven segments, red or green colour with 100 mm (4") height.  
The complete reference for each instrument is obtained replacing the ""XX" by the corresponding  
references for every Model (C0, C1 & C2). See paragraph 4.  
Page : 4  
The common features for all series are the following:  
MECHANICAL.- Housed in a rugged extruded aluminium profile housing for panel mounting or free  
standing. Finished in anodized black colour. The frontal lens is mounted with a special  
rubber profile which provides the front part of the unit with an IP-65 protection.  
CONTROL SIGNALS .- Three inputs, sharing one common return. The operating mode depends on interlinking  
of the three control lines  
CONNECTIONS.-  
For output alarm are made using one screw-clamp connector of 4 terminals located on  
the rear part of the unit.  
For control signals are made using one Sub-D connector of 15 terminals located on the  
rear part of the unit.  
For serial data output are made using one Sub-D connector of 9 terminals located on  
the rear part of the unit.  
The recommended wire cross section is 0.5 mm2.  
For Power Supply uses a push-in cable connector with 2 terminals for power and 1  
terminal for earth ground.  
The recommended wire cross section is 2.5 mm2.  
The fuse is located in the Power Supply socket, as well as the spare fuse.  
MEMORY.-  
RESET.-  
Non volatile static RAM type, to maintain the real time clock running in power down or  
in case of power failure during two years. It allows 100,000 cycles ON/OFF.  
On the run time clock the data and alarm value will be stored also for a maximum of  
2 years.  
By remote push-button using the connector of 15 terminals on the rear part.  
Only for run time clock.  
4.- MODELS  
4.1.- MODEL LDP-1XX-C0. Display time using the format MM: SS  
Real time clock : 59 minutes, 59 seconds.  
Run time clock : 99 minutes 59 seconds.  
Real time clock or run time clock is internally DIP switch selectable.  
Run up or run down controlled by internal dip switch.  
4.2.- MODEL LDP-1XX-C1. Display time using the format HH : MM  
Real time clock : 12 or 24 hours selectable.  
Run time clock : 99 hours 59 minutes.  
Real time clock or run time clock is internally DIP switch selectable.  
Run up or run down controlled by internal dip switch.  
4.3.- MODEL LDP-1XX-C2. Display time using the format HH : MM : SS  
Real time clock : 12 or 24 hours.  
Run time clock : 99 hours, 59 minutes, 59 seconds.  
Real time clock or run time clock is internally DIP switch selectable.  
Run up or run down controlled by internal dip switch.  
Page : 5  
5.- GENERAL SPECIFICATIONS  
DISPLAY  
Type . . . . . . . . . . . . . . . . . 4 or 6 digits, 7 segments, red or green LED.  
Heightdigit . . . . . . . . . . . . 57 (2.3") or 100 mm. (4")  
Rangemáx.. . . . . . . . . . . . 99 : 59 or 99 :59 : 59  
Brightness . . . . . . . . . . . . . Set by switch for 25%, 50%, 75%  
or100%(normal).  
OUTPUTS  
SERIALOUTPUT . . . . . . . Output intended for transmission to the  
remote display fitted with a clock  
displayasaslaveclockdisplay.  
Signal . . . . . . . . . . . . . . . . RS422level1200baudfixedrate. One  
transmissioneachsecondwhile  
REAL TIME CLOCK.  
showing real time or run time.  
String . . . . . . . . . . . . . . . . . Transmits --NUL--(CR)  
or --NUL--NUL--(CR) when setting time  
orenteringalarmstate.  
Type . . . . . . . . . . . . . . . . . 59 mm 59 ss (model C0)  
12/24hoursselectable  
Timesetting . . . . . . . . . . . . By volt free contact closure inputs  
secondsreset,minutesadvance  
Datastring  
andhoursadvance.  
Standard mode . . . . . HH.MM.SSfor6decadeversion.  
HH.MM or MM.SS for 4 decade version.  
Newport mode . . . . . . HHM.MS.Sfor6decadeversion.  
HHM.M or MMS.S for 4 decade version.  
Timeaccuracy . . . . . . . . . . ±1minutepermonth.  
Powerdown . . . . . . . . . . . . Maintainstimeforminimum2years  
withoutmainspower.  
Characterlength . . . . . . . . One start bit, 8 data bits no parity and  
one stop bit.  
RUN TIME CLOCK  
Handshake . . . . . . . . . . . . No handshake:onedatastring  
transmittedeachsecond.  
Type . . . . . . . . . . . . . . . . . 99 mm 59 ss, 99 hh 59 mm  
or 99 hh 59 mm 59 ss  
Timerresolution . . . . . . . . . 1second.  
Timeruncertainty . . . . . . . . 1secondmax. perstart/stopsequence.  
Timermemory . . . . . . . . . . Runtimemaintainedfor2yearsminimum  
butnotupdatedwithmainsremoved.  
Alarm . . . . . . . . . . . . . . . . . Oneminuteoronesecondresolution  
(one minute only on model C2) set by  
EXCITATIONVOLTAGEOUTPUT  
Vexc . . . . . . . . . . . . . . . . . +15 Vdc ±20%. @100 mA. max.  
Ripple . . . . . . . . . . . . . . . . 100 mVac 50/60 Hz.  
externalclosureinputs.  
Alarmenable . . . . . . . . . . . Controlledbyinternalswitch.  
Alarmoutput . . . . . . . . . . . Opticallyisolatestransistorswitch  
30 V / 30 mA capacity.  
Alarmindication . . . . . . . . . Clockstop, displayflashesandalarm  
outputactivates.  
ENVIRONMENTAL  
Temperature  
Initialization . . . . . . . . . . . . By operationofoneormorethe  
controlinputs.  
Operating . . . . 0 to +50 ºC (32 to 122 ºF).  
Storage . . . . . . -20 to +85 º C (-4 to 185 ºF).  
Relativehumidity . . . . . . . . 0 to 85 % not condensed.  
Protection . . . . . . . . . . . . . IP65. (Frontpartonly).  
CONTROL LINES  
MECHANICAL  
Type . . . . . . . . . . . . . . . . . Three inputssharingonecommonreturn.  
Threshold . . . . . . . . . . . . . Rising : +2.3 V min., +3.6 V max.  
Falling : +0.9 V min., +2.5 V max.  
Signalhysteresis . . . . . . . . 0.4 V minimum.  
Maximumsignal . . . . . . . . . ±30 V.  
Loading . . . . . . . . . . . . . . . 100 Kto common for +5 V signal  
18Kloadingbeyond+5/-0.6V.  
Load . . . . . . . . . . . . . . . . . 1 K±5% load may be internally  
jumperedtocommonortotheexcitation  
Dimensions . . . . . . . . . . . . See tablein page13.  
Panel cut out . . . . . . . . . . . See table in page 13.  
Depth . . . . . . . . . . . . . . . . . See tablein page13.  
Weight . . . . . . . . . . . . . . . . See table in page 13.  
Casematerial. . . . . . . . . . . Aluminiumextruded.  
Finished . . . . . . . . . . . . . . . Anodized,blackcolour.  
ELECTRICAL  
supplyforeachcontrolline.  
Responsetime . . . . . . . . . . 200mSmaximum:internally  
Standardpowersupply . . . 115 Vac. ±10% 50 / 60 Hz.  
(230Vacoptionally)  
Consumption . . . . . . . . . . . See tablein page13.  
debouncedforcontactclosureinputs.  
Activelevel . . . . . . . . . . . . . Internallyjumperedtobeactiveeitherwith  
lowlevel/fallingedgeorhighlevel/rising  
edgeinputsindependentlyforeach  
controlline.  
CONTROL MODES  
Type . . . . . . . . . . . . . . . . . Theoperatingmodedependson  
interlinkingofthethreecontrollines.  
Onecontrol . . . . . . . . . . . . To reset and run when active and stop  
wheninactive.  
Twocontrols . . . . . . . . . . . One to run when active and stop when  
inactiveandtheothertoreset.  
Twocontrols . . . . . . . . . . . One to alternately start and stop and the  
othertoreset.  
Threecontrols . . . . . . . . . . One to start, one to stop and one to  
reset.  
Page : 6  
6.- FRONT VIEW, DESCRIPTION  
colon  
Models LDP-124-C0 & C1  
LDP-144-C0 & C1  
Display minutes for model C0  
Display hours for model C1  
Display seconds for model C0  
Display minutes for model C1  
Models LDP-126-C2  
LDP-146-C2  
Display hours for model C2  
Display minutes for model C2  
Display seconds for model C2  
7.- REAR VIEW, DESCRIPTION for all series  
Attaching screws  
Connector Sub-D 15  
pins for Control Lines  
and voltage excitation  
output  
4 ways plug-in screw  
connector for alarm  
output  
Power Supply  
Vac + Earth,  
fuse and spare fuse.  
Connector Sub-D 9  
pins, for serial data  
RS422 output  
Page : 7  
8.- WIRING  
8.1.- POWER SUPPLY, RECOMMENDED WIRING  
POWER SUPPLY  
115 Vac (230 Vac Optional).  
Main switch  
FUSE and spare fuse.  
8.2.- PROTECTION FUSES  
Power  
Supply  
Fuse  
value  
The unit has a protection fuse located on the power supply socket.  
If this fuse must be replaced or changed because the power supply  
is changed, use the time-lag fuse according to IEC 127/2 with the  
values indicated on the table.  
230 Vac  
115 Vac  
0.2 A  
0.4 A  
TABLE 4  
8.3.- CONTROL LINES, ALARM AND SERIAL OUTPUT  
Control lines connector  
Alarm connector  
Serial RS422 connector  
1
9
A
B
C
D
1
6
9
5
15  
8
1.- Serial A.  
1.- Vexc.  
2.- Serial B.  
9.- Vexc.  
10.- Stop  
2.- Vexc.  
3.- Start  
4.- GND  
5.- GND  
6.- Minutes  
7.- GND  
8.- No connection  
3.- No connection  
4.- No connection  
5.- GND  
6.- No connection  
7.- No connection  
8.- No connection  
9.- No connection.  
A : + Alarm  
11.- Reset  
12.- GND  
13.- Seconds  
14.- Hours  
15.- GND  
B : Noconnection  
C : Noconnection  
D : - Alarm  
8.4.- NOTES  
The HOURS, MINUTES & SECONDS inputs are for contact closure to GND, and are pulled up to the auxiliary 15  
volt rail through 4.7 K.  
The STOP, START and RESET inputs are normally configured to be pulled up to the auxiliary 15 volt rail through  
1 KΩ, but may be internally jumpered to be pulled to GND through 1 K, or pulled to GND through a high resistance  
of 100 k.  
Debouncing for 200 mS time constant is normally incorporated on the three control inputs, but may be disabled by  
removing internal jumpers.  
Vexc is the Excitation Voltage for sensors supplied by the instrument (pins 1, 2 & 9).  
The connections to Serial A, Serial B and GND are for the RS422 data output.  
Run time uncertainty  
The control inputs are sensed eight times per second, but the actual run time clock is incremented or decremented  
in synchronism with the built in real time clock once per second.  
This means that each start/stop condition may be inaccurate by up to one second.  
Page : 8  
8.5.- EXCITATION VOLTAGE FOR SENSORS  
The unit supplies the Excitation Voltage for sensors, through control lines connector.  
If the current required for the sensors installed is more than 100 mA then do not use this terminal. Install other external  
power supply. See paragraph 5 for technical specifications  
9.- POWER-UP AND OPERATION  
9.1.- REAL TIME CLOCK  
At power-up, the unit displays the message MAStEr for 6 decade version or MASt for 4 decade version and will  
start to operate.  
If a failure occurs then will display the messages CHIP or SET.  
The message CHIP means that the failure is the internal  
hardware and the message SET means that the data stored in  
the memory is damaged and it must be restored.  
The restore data operation can be made while the instrument  
is in normal operation or while the error message SET is on the  
display using the control lines HOURS, MINUTES & SEC-  
ONDS.  
Terminal  
Function  
14 Hours  
6 Minutes  
13 Seconds  
Increment hours  
Increment minutes  
Reset seconds  
Reaction to the control lines is once per second.  
To obtain a complete reset in a real time clock configuration, connect terminals 14 & 13 to GND simultaneously.  
The display can be switched in to Run Time Clock mode by inputting an active signal on to any of the three control  
lines START, STOP or RESET.  
9.2.- RUN TIME CLOCK  
At power-up, the unit displays the message MAStEr for 6 decade version or MASt for 4 decade version and will  
start to operate.  
If a failure occurs then will display the messages CHIP  
An active signal  
applied to pin :  
Function  
or SET. The message CHIP means that the failure is the  
internal hardware and the message SETmeans that the  
alarm value stored in the memory is damaged and it  
must be restored.  
Use the control lines RESET, START & STOP to control  
the timer. Once the unit is displaying the run time clock  
the three control lines operate as show in the table.  
An active signal can be either active high or active low  
11 Reset  
Resets/Preset the timer  
Starts the timer  
Stops the timer running  
Starts the timer if not running  
3
Start  
10 Stop  
depending upon the internal configuration of the unit as shown in paragraph 10.2.4.  
The factory default settings are for contact closures to GND for all three inputs. Reaction to the control lines is once  
per second.  
Note on the 4 decade clock the run time clock may be either for hours and minutes or for minutes and seconds. During  
run time hours and minutes, the colon will flash on and off every second while the clock is running to indicate the  
clock is running.  
9.2.1.- UP / DOWN TIMING  
The run time clock has two basic modes of operation; a run up clock or a run down clock. These modes are  
controlled by a internal DIP switch (See DIP SWITCH CONFIGURATION in paragraph 10.2.3).  
Run up clock  
Reset will clear the clock to zero. When the alarm point is reached, if the alarm is enabled, the clock will stop  
and the whole display will flash and the alarm output will be activated, until the clock is reset. If the alarm is  
disabled, the clock will run up to 99 minutes 59 seconds (or 99 hours 59 minutes) and then roll over zero.  
Run down clock  
Reset will preset the clock to the alarm point. When zero is reached, if the alarm is enabled, the clock will stop  
and the whole display will flash and the alarm output will be activated, until the clock is reset. If the alarm is  
disabled, the clock will run down to zero and then underflow to 99 : 59.  
Page : 9  
9.2.2.- CONNECTION EXAMPLES  
Different interlinking of the three control lines will produce different operating modes:  
Stop  
Stop  
Push B = start  
Push A = stop  
Push C = reset  
note A may close while B  
is shut  
A
A
A
Start  
Reset  
Start  
Reset  
B
C
Close contact A = reset and run  
Open contact A = stop  
GND  
GND  
B may open while A is shut  
Stop  
With contact B opened  
close contact A = run  
open contact A = stop  
Start  
Reset  
Stop  
B
B
B
Start  
Reset  
Push A = reset and start  
Push B = stop  
(push B again = start)  
A
push contact B = reset  
GND  
GND  
Stop  
A
Push A = start  
Push A = stop  
Push B = reset  
Start  
Reset  
GND  
9.3.- RUN TIME ALARM SETTING  
The alarm is a 4 decade alarm only. On the 6 decade clock, the alarm setting is for hours and minutes only and  
on the 4 decade clock the alarm point can be for either hours and minutes or minutes and seconds.  
Displaying or setting of the alarm point can only be done when the unit is displaying the run time and is not  
running.  
The same three contact inputs are used for setting the alarm point and for adjusting the real time clock, but their  
functions are different.  
To display the alarm set point, hold the SECONDS input (pin 13) to GND. Once the alarm point is displayed, the  
value can be changed by contact closure between GND and the following terminals :  
Seconds ........................... view/adjust alarm point ( hold to GND).  
Minutes ............................ increment seconds ( or minutes).  
Hours ............................... increment minutes ( or hours).  
Hours and Minutes .......... together reset alarm to zero  
9.4.- SERIAL DATA OUTPUT  
The unit incorporates and RS422 level serial ASCII output to allow master/slave clock setups in conjunction with  
serial ASCII remote displays.  
Details of the serial output to be found in paragraph 5.  
Note the line should be terminated to prevent noise pickup if the clock is not transmitting data.  
10.- CONFIGURATION  
10.1.- POWER SELECTION  
See the rear label for power requirements. Power supply selection must be done by suitable qualified  
personnel or by the local distributor. Contact factory or your local distributor for instructions.  
10.2.- INSTRUMENT CONFIGURATION  
To change the instrument configuration, the rear panel of the instrument needs only to be removed to gain  
access to the internal DIP switches and jumpers located on the control board.  
Be sure that the instrument is disconnected from any power supply before removing the rear panel.  
Page : 10  
10.2.1- CONTROL BOARD POSITION  
Control board position for instruments  
series LDP-2X-CX  
Control board position for instruments  
series LDP-4X-CX  
10.2.2- DIP SWITCH AND JUMPERS LOCATION  
JP1  
JP2  
JP3  
JP4  
ON  
OFF  
A
JP8  
JP7  
JP6  
B
ON  
1
2
3
4
5
6
7
8
9
10 11 12  
OFF  
10.2.3- DIP SWITCH CONFIGURATION  
Display brightness table  
Switch  
number  
Switch position  
Function  
OFF  
ON  
DIPswitch  
brightness  
%
3
4
1
2
3
4
5
6
7
Alarm  
Disable  
Up*  
Enable*  
Down  
Run time  
OFF OFF  
OFF ON  
ON OFF  
ON ON  
25  
50  
75  
Display brightness  
Display brightness  
Clock range  
Clock range  
Serial data output  
See brightness table  
See brightness table  
MM :SS  
12 hours  
HH :MM  
24 hours*  
100*  
See serial data output  
configuration  
* = Factory set-up  
8
Function selection  
Real time*  
Run time  
Page : 11  
10.2.4- JUMPERS CONFIGURATION  
Function  
Close Jumper  
220 terminator resistor for the RS422  
switch debounce of 5 Hz for the STOP line  
switch debounce of 5 Hz for the START line  
switch debounce of 5 Hz for the RESET line  
JP1 (By default opened)  
JP2* (By default closed)  
JP3* (By default closed)  
JP4* (By default closed)  
Jumper  
Application  
A
Jumper position  
B
JP5  
JP6  
JP7  
JP8  
JP9  
JP10  
for STOP line  
for START line  
for STOP line  
for RESET line  
for START line  
for RESET line  
1 Kpull-up *  
1 Kpull-down  
falling edge/low level active*  
falling edge/low level active*  
falling edge/low level active*  
1 Kpull-up*  
rising edge/high level active  
rising edge/high level active  
rising edge/high level active  
1 Kpull-down  
1 Kpull-up*  
1 Kpull-down  
* = Factory set-up  
10.2.5- SERIAL DATA OUTPUT CONFIGURATION  
Data output format  
Transmission during  
time adjust or in  
alarm status  
with DIP switch 7  
in position ON  
with DIP switch 7  
in position OFF  
Standard mode  
Instrument  
reference  
(NEWPORT mode)  
C2  
C1  
HHM.MS.S(CR)  
HHM.M(CR)  
HH.MM.SS(CR)  
--(NUL)--(NUL)--(CR)  
--(NUL)--(CR)  
HH.MM(CR) *  
HH(NUL)MM(CR)**  
C0  
MMS.S(CR)  
MM.SS(CR)  
--(NUL)--(CR)  
* = Data output format only when the colon is lighted.  
** = Data output format only when the colon is NOT lighted.  
H = Character from "0" to "9" which represent one number of hours.  
M = Character from "0" to "9" which represent one number of minutes.  
S = Character from "0" to "9" which represent one number of seconds.  
Character "." = 02E hex.  
Character "-" = 02D hex.  
Character "(NUL)" = 0 hex.  
Character "(CR)" = 0D hex.  
Page : 12  
11.- INSTALLATION  
1.- Prepare a panel cut-out with the dimensions indicated on paragraph 12.  
2.- Slide the instrument (1) into the cut-out.  
3.- Slide the two fixation pieces (3) with T shape by both lateral sides of the instrument, such as it  
is shown on the drawing below.  
4.- Turn the screw bolt until it is pressed firmly against the panel (4) and the instrument (1) remains  
totally fixed.  
5.- The front part of the instrument has the necessary elements to provide an IP 65 protection. If the  
panel where this instrument must be installed, it must to comply some protection standards  
against water splashes, then a rubber profile must be installed with a rectangular or round shape  
(5) on the place indicated and shown on the drawing below.  
1
5
4
2
3
12.- MECHANICAL DIMENSIONS mm (inches)  
Aluminiumbackplate  
C
PANEL CUT-OUT  
B
E
D
Panel thickness : Max. 14 (0.55)  
Min. 2.5 (0.10)  
A
Anti-Glareredlens  
Table 5  
DIMENSIONS  
B
PANEL CUT-OUT  
WEIGHT  
POWER  
Digits  
Height  
A
C
D
E
4
4
6
6
57 (2.3)  
100 (4)  
57 (2.3)  
100 (4)  
264 (10.4)  
480 (18.9)  
384 (15.12)  
688 (27.1)  
120 (4.75)  
180 (7.09)  
120 (4.75)  
180 (7.09)  
112 (4.41)  
112 (4.41)  
112 (4.41)  
112 (4.41)  
256 (10.07)  
472 (18.58)  
376 (14.8)  
680 (26.77)  
112 (4.4)  
172 (6.77)  
112 (4.4)  
2.3 Kg (5 lbs)  
5 Kg (11 lbs)  
2.7 Kg (6 lbs)  
6 VA  
12 VA  
6 VA  
172 (6.77) 5.7 Kg (12.5 lbs) 12 VA  
Dimensions in mm. Parenthesis are in inches or pounds.  
Add 27 mm to the dimension C for power connector.  
Page : 13  
APPENDIX 1: MODEL LDP-1XX-CX AS SLAVE REPEATER.  
FUNCTIONAL DESCRIPTION:  
Special configuration of Models LDP-1XX-CX for serial RS-422 repeater, to be used as slaves.  
The Serial port connection which is the only that keeps in operation, it is used to enter the data coming  
from the Master.  
The rest of functions and connections of these Models, remain disabled.  
CONFIGURATION OF A SLAVE MODEL, STARTING FROM A MASTER MODEL LDP-1XX-CX:  
- Remove the integrated circuit "IC4" placed on the PCB "98/04" and close jumper JPA2.  
CONFIGURATION OPTIONS:  
Jumper JP1 placed on PCB "98/06", connects the RS-422 line termination (220 Ohm.).  
The rest of the Mini-dips and Jumpers are disabled on this Mode.  
JP1  
Charge  
connected  
REMOVE IC4  
Charge  
disconnected  
C.I.98/06  
JP1  
C.I.98/04  
SITUATION JUMPER JPA2  
A
Y S A L I  
M I U H T I  
A
M
L
Y R E T T A B  
1 C T 0 2 0 P 0 2 8 - 4 T M  
M
R A M  
E E P E K R E M  
I
T
T S  
JPA2  
JPA3  
JPA4  
Configuration Diagram.  
OPERATION:  
After powered up the unit, the 4 digit Models will display "SLU" and the 6 digit Models will display "SLAUE".  
These above indications will remain on the Display, until to receive valid data through RS-422 channel.  
Page : 14  
APPENDIX 2: TIME-NET CONFIGURATION AND CONNECTIONS.  
It is advisable to make the TIME-NET connections as follows:  
Transmitter  
MASTER  
Unit  
n (maximum 32 units)  
SLAVE  
1
2
3
4
Receiver  
Units  
SLAVE  
SLAVE  
SLAVE  
SLAVE  
Connect RS-422 (JP1)  
line termination.  
Dont connect RS-422 (JP1) line termination.  
Note  
Shielded twisted-pair cable, must be used for connections.  
SLAVE  
MASTER  
Dont connect the cable shield  
to the receiver units (slaves).  
1
1
9
6
9
6
To other slaves  
5
5
shield  
To other slaves  
shield  
COMPATIBILITY TABLE AMONG MASTER-SLAVE  
master  
124-C0  
124-C1  
144-C0  
144-C1  
126-C2  
146-C2  
slave  
LDP-124-C  
LDP-126-C  
LDP-144-C  
LDP-146-C  
YES  
NO  
YES  
NO  
NO  
YES  
NO  
YES  
NO  
YES  
NO  
NO  
YES  
NO  
YES  
YES  
Page : 15  
WARRANTY/DISCLAIMER  
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a  
period of 13 months from date of purchase. OMEGA warranty adds an additional one (1) month grace  
period to the normal one (1) year product warranty to cover handling and shipping time. This ensures  
that OMEGAs customers receive maximum coverage on each product.  
If the unit malfunction, it must be returned to the factory for evaluation. OMEGAs Customer Service  
Department will issue an Authorized Return (AR) number immediately upon phone or written request.  
Upon examination by OMEGA, if the unit is found to be defective it will be repaired or replaced at no  
charge. OMEGAs WARRANTY does not apply to defects resulting from any action of the purchaser,  
including but not limited to mishandling, improper interfacing, operation outside of design limits, improper  
repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been  
tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current,  
heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions  
outside of OMEGAs control. Components which wear are not warranted, including but not limited to  
contact points, fuses and triacs.  
OMEGA is pleased to offer suggestions on the use of its various products. However OMEGA  
neither assumes responsibility for any omissions or errors nor assumes liability for any damages  
that result from the use of its products in accordance with information provided by OMEGA, either  
verbal or written. OMEGA warrants only that the parts manufactured by it will be as specified and  
free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND  
WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES  
INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PUR-  
POSE ARE HEREBY DISCLAIMED.  
LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total  
liability of OMEGA with respect to this order, whether based on contract, warranty, negligence,  
indemnification, strict liability or otherwise, shall not exceed the purchase price of the component  
upon which liability is based. In no event shall OMEGA be liable for consequential, incidental or  
special damages.  
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a Basic  
Componentunder 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical  
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or  
activity, medical application, used on humans, or misused in any way. OMEGA assumes no responsibility  
as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify  
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the  
Product(s) in such a manner.  
RETURN REQUESTS/INQUIRIES  
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE  
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN  
(AR) NUMBER FROM OMEGASS CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID  
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the package  
and on any correspondence.  
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent  
breakage in transit.  
FOR WARRANTY RETURNS, please have the following  
information available BEFORE contacting OMEGA:  
1. Purchase Order number under which the product was  
PURCHASED,  
FOR NON-WARRANTY REPAIRS, consult OMEGA for  
current repair charges. Have the following information  
available BEFORE contacting OMEGA:  
1. Purchase Order number to cover the COST of the  
repair,  
2. Model and serial number of the product under warranty,  
and  
3. Repair instructions and/or specific problems relative to  
2. Model and serial number of the product, and  
3. Repair instructions and/or specific problems relative  
to the product.  
the product.  
OMEGAs policy is to make running changes, not model changes, whenever an improvement is possible.  
This affords our customers the latest in technology and engineering.  
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.  
© Copyright 1998 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced,  
translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without prior written consent of OMEGA  
ENGINEERING, INC.  
Page : 16  
Where Do I Find Everything I Need for  
Process Measurement and Control?  
OMEGA...Of Course!  
TEMPERATURE  
; Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies  
; Wire: Thermocouple, RTD & Thermistor  
; Calibrators & Ice Point References  
; Recorders, Controllers & Process Monitors  
; Infrared Pyrometers  
PRESSURE, STRAIN AND FORCE  
; Transducers & Strain Gauges  
; Load Cells & Pressure Gauges  
; Displacement Transducers  
; Instrumentation & Accessories  
FLOW/LEVEL  
; Rotameters, Gas Mass Flowmeters & Flow Computers  
; Air Velocity Indicators  
; Turbine/Paddlewheel Systems  
; Totalizers & Batch Controllers  
pH/CONDUCTIVITY  
; pH Electrodes, Testers & Accessories  
; Benchtop/Laboratory Meters  
; Controllers, Calibrators, Simulators & Pumps  
; Industrial pH & Conductivity Equipment  
DATA ACQUISITION  
; Data Acquisition & Engineering Software  
; Communications-Based Acquisition Systems  
; Plug-in Cards for Apple, IBM & Compatibles  
; Datalogging Systems  
; Recorders, Printers & Plotters  
HEATERS  
; Heating Cable  
; Cartridge & Strip Heaters  
; Immersion & Band Heaters  
; Flexible Heaters  
; Laboratory Heaters  
ENVIRONMENTAL  
MONITORING AND CONTROL  
; Metering & Control Instrumentation  
; Refractometers  
; Pumps & Tubing  
; Air, Soil & Water Monitors  
; Industrial Water & Wastewater Treatment  
; pH, Conductivity & Dissolved Oxygen Instruments  
M3229 / 0699  
Page : 17  

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