DPM702S

3½ Digit Dual Channel LCD Module 

## DPM 702S 

0 EEE No.:695 - Page 1 of 2 

An ultra-low profile LCD meter using advanced components and construction techniques to provide an unrivaled combination of dual channel voltage measurements and low cost. This product is ideal for those applications where "matched" readings are required, e.g.: voltage and current, temperature and humidity, etc. Both measurement inputs share a common ground line, thereby reducing the number of connections to a minimum. The very low current consumption results in a long battery life and makes it especially suitable for portable equipment. A low battery warning circuit is fitted as standard. The 10waypinheadercanbereplacedbyscrewterminalblocksonrequest. ContactyournearestLascarSalesOfficeforfurtherdetails. 

- **6.4mm (0.25“) Digit Height** 

- **Dual Channel** 

- **200mV d.c. Full Scale Reading (F.S.R.)** 

- **Selectable Decimal Points** 

- **Auto-zero, Auto-polarity** 

- **Common Signal Ground** 

- **Annunciators** 

## **SCALING** 

**==> picture [540 x 438] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|SCALING|Stock Number|
|The|full|scale|reading|(F.S.R.)|of|each|measurement|Dula|Channle|Meter|DPM|702S|
|channelmaybealteredbytheadditionoftworesistors|es|Specification (channel A or B)|Min.|Typ.|Max.|Unit|
|table.channelcalibration by adjustingRa|and|RbEachwillpermeasurementchannel-require|CAL|seere-|INPUT+|Ra|IN HI|eseses|AniLFllucceusarctiraelacyy|r(eoavdernillag|error)*|-19|eSeS|9.9|0|eS|.05|1±09.911.9|%|(m±cVo1udcno.c.tunt)|
|Resulooitn|100|V d.c.|
|A|and|CALB|.|Rb|
|-|IN LO|SS|Sampel|reta|GS|ES|3|sampels/sec|
|es|Operating temperature range|0|50|°C|
|2|Required F.S.R.|V|9|Ra|10k|1|Rb|00k|eses|TSeumpppleyrvoltatauregsetability|3|eS|.5|1|ES|050|7|pVpmd.c.°/C|
|20V|1M|10k|Supply|current|700|A|
|200V|1M|1k|es|Input leakage current (Vin= 0V)|es|1|10|pA|
|2kV|1M|100R|* To ensure maximum accuracy, re-calibrate periodically.|
|200|A|0R|1k|
|2mA|0R|100R|
|20mA|0R|10R|
|200mA|0R|1R|
|==s|es|
|DIMENSIONS|All dimensions in mm (inches)|
|58.0|(2.28)|
|55.0|(2.16)|6.1|(0.24)|
|47.0|(1.85)|REAR|VIEW|
|1.6|(0.06)|
|{|<|6|9|Pt|-|DP|===|A|
|1|2|3|
|CAL A|
|©|©|.|CAL B|
|t|y|im|1 2 3 4 5 6 7 8 9 10|1|2|@|3|
|DP|B|
|1.5|2.5|
|||H|e|5|IL|IF|HE|keeeeeeeee|OU|
|(0.05)|2.1|0.64mm sq. pins on 2.54mm pitch|
|60.0|(2.36)|
|Ø2.50|(0.08)|
|O|T|(0.10)|re|8.0|||
|(0.31)|
|64.5|(2.54)|2.00|
|47.0|(1.84)|1.0|(0.08)|Pin Functions|
|(0.04)|
||||.|(HAAiABA|x.|eoccccccce|
|2.50|
|a|Panel|cut-outDisplay62.0in|xTEST32.0mode.(2.44|x|1.26)|(0.09)|av|

**----- End of picture text -----**<br>


## **PANEL FITTING** 

Fit the bezel to the front of the panel, then locate the meter to the bezel from behind the panel. Using the screws provided, secure the two plastic spring clipstotherearofthemeter.ThemeterisdesignedtofitdirectlyontoOKWTypeM,PandVeronexsize3enclosures. 

_**Specifications liable to change without prior warning**_ 

**09/2020** 

**Applies to DPM 702S/2** 

**DPM 702S Issue 8** 

**LASCAR ELECTRONICS INC. LASCAR ELECTRONICS (HK) LTD. 4258 WEST 12th Street, 8th FLOOR, CHINA AEROSPACE CENTRE, 143 HOI BUN ERIE, PA 16505 USA ROAD, KWUN TONG, KOWLOON, HONG KONG FAX: +1 (814) 838 8141 TEL: +852 2389 6502 FAX: +852 2389 6535** 

**LASCAR ELECTRONICS LTD. MODULE HOUSE, WHITEPARISH, WILTSHIRE SP5 2SJ UK** 

**TEL: +44 (0)1794 884567 FAX: +44 (0)1794 884616 TEL: +1 (814) 835 0621 FAX: +1 (814) 838 8141 TEL: +852 2389 6502 E-MAIL: sales@lascar.co.uk E-MAIL: us-sales@lascarelectronics.com E-mail: saleshk@lascar.com.hk** 

## **PIN FUNCTIONS** 

1. V+ Positivepowersupplyconnection. 

2. GND 0Vsupplyconnection. 

3. INHIA Positivemeasuringdifferentialinput. 

4. INHIB Positivemeasuringdifferentialinput. Analogueinputsmustbenocloserthan1Vtothepositivesupply. 

5. IN LO Negative measuring differential input. 

6. POL-B Drive pin for channel B polarity sign. 

Connect to V+ to invert polarity sign when measuring Voltage and Current simultaneously. 

7. TEST-A Connect to V+ to display all Channel A segments, except annunciators. 

8. TEST-B Connect to V+ to display all Channel B segments, except annunciators. 9. N/C Not connected. 

10. N/C Not connected. 

## **SAFETY** 

To comply with the Low Voltage Directive (LVD 93/68/EEC), input voltages to the module’s pins must not exceed 60Vdc. If voltages to the measuring inputs do exceed 60Vdc, then fit scaling resistors externally to the module. The user must ensure that the incorporation of the DPM into the user’s equipment conforms totherelevantsectionsofBSEN61010(SafetyRequirementsforElectricalEquipmentforMeasuring,ControlandLaboratoryUse). 

## **DISPLAYING ANNUNCIATORS** 

Annunciators are displayed by making the required solder links. See below for examples. 

**==> picture [495 x 95] intentionally omitted <==**

**----- Start of picture text -----**<br>
Annunciators are displayed by making the required solder links. See below for examples. Normally<br>OPEN<br>= Solder to<br>| | La A | A DP on . Decimal Point 1 enabled. SHORT<br>| | ~ | ~ | | ~| 1 2 3<br>an =n cx<br>| | | | | | A A DP memeTor Decimal Point 2 enabled.<br>PLelel Lor OLLt 1 2 3<br>an an an<br>Blank DP Decimal Point 3 enabled.<br>wy, Fi 3 1 - 2 7 8 3 )<br>**----- End of picture text -----**<br>


## **VARIOUS OPERATING MODES** 

**==> picture [436 x 111] intentionally omitted <==**

**----- Start of picture text -----**<br>
+5V I +5V<br>1 1<br>V1 3 IN HIAV+ 3 IN HIAV+<br>V2 4 IN HIB SupplyPower Shunt = 0.2V Load 4 IN HIB<br>Circuit 5 IN LO I 5 IN LO<br>Under Test<br>GND GND<br>2 Shunt 2<br>0V<br>Dal l 0V<br>Measuring Two d.c. Voltages Simultaneous d.c. Voltage and Current Measurement.<br>Invert the polarity sign of channel B by connection pin 6 to pin 1.<br>**----- End of picture text -----**<br>


**==> picture [246 x 98] intentionally omitted <==**

**----- Start of picture text -----**<br>
I 1 > Load1 Shunt1 1 +5V<br>3 IN HIAV+<br>Circuit I2 Load2 Shunt2 Shunt1 = 0.2V<br>Under Test Ci i I1<br>4 IN HIB Shunt2 = 0.2V<br>> I 5 IN LO GND2 I2<br>0V<br>Measuring Two d.c. Currents.<br>**----- End of picture text -----**<br>


_**Specifications liable to change without prior warning**_ 

**DPM 702S Issue 8 09/2020 Applies to DPM 702S/2**