DPM490 LASCAR | Alldatasheet

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D PM 490 Digit LED Panel Meter This high performance meter uses 10mm (0.39") LED displays behind a red window. The meteris housed in a robust DIN case and uses a 0.1" pitch shrouded pin connector at the rear. A screw terminal block adaptor board is available. With the simple addition of scaling resistors ora shunt, this module will measure most DC voltages and currents. The DPM 490 features auto-zero, auto-polarity and a choice of decimal points. The operating modeis selected via a set of DIP switches. Calibration s achieved via a single multi-turn potentiometer. @ 10mm (0.39“) Digit Height (@ Optional Screw Terminal Connections @ Auto-zero, Auto-polarity € 2V d.c Full Scale Reading (ES.R.) ¢ Easy Configuration via DIP Switches € Snap-in Panel Mounting DIN Case SCALING Tworesistors Raand Rbmay be fitted in order to alter the I The meter will need re-calibration by adjusting CAL "Accuracy (overall error* 0.005 X % (=1 count) (remove thebezel to access CAL potentiometer). Thnearty = = St Ra RI Full scale reading 1999.9 1999.9 mVd.c 910Kk 00K Resolution 0.01 mv 200V Nowe T M Tok Sample rate 25 samples/sec STV Note ™ TC Operating temperature range 0 50 T 000A R oK Temperature stabilly 30 PPIVC S R ® Supply voltage 5 55 Ve SOmA R TOOR Upply current 720 200 A SOOmA R TOR Tnput leakage current (Vin= 0V) T 10 PA R R TR * To ensure maximum accuracy, re-calibrate periodically. e CONNECTOR SOURCING GUIDE Ensure that Link La is open if fitting Ra. PCB socket 900F-110-301 M20-9821022 SSW-110- Terminal Block ‘Available From Lascar - Stock No. T/BLK-1 Adaptor Board DIMENSIONS All dimensions in mm (inches) 720 283 w00 | 58.5 (2.30 ‘ (016) [P — - 2 9.0 2.0 098 (035 Panel cut-out 68 x 33 (268 x 1.30 Panel thickness 10 0 28 (004 to 011 675 (2,66 Link diagram ftop view a5 oo | Lol s B PANELFITTING Locate the meter by passing it through the front panel cut-out , gently pushing until the rear of the bezelis flush with the panel. The snap-in lugs will now automatically hold the meter firmly in position. WEBSITE: http://www.lascarelectronics.com/

lASCAR LASCAR ELECTRONICS LTD. LASCAR ELECTRONICS INC. LASCAR ELECTRONICS (HK) LIMITED I N A N PIN FUNCTIONS 1. +5V Positive powersupply input. 2 GND Negative powersupply input. 3. INHI Positivemeasuringinput | Analogue inputsmustbeno closer than 15V toeither the positive or negative supply. Thenegative 4. INLO Negative measuring input. | supply of thismeteris generated internallyand mirrors the positive supply voltage. 5. DP4 1.9999 (DIP switch ). Confiect to DPCOM or turn relevant DIPswitch o on positiontodisplay. 6. COM Analoguecommon. The ground for the analoguesection of the A/D converter, internally connected to0V via DIPswitch5. 7. DPCOM Connect to pins8, 9or 10to display required DR 8. DP1 1999.9 (DIP switch4) 9. DP2 199.99(DII’switchS)}ConnecnoDI’CDMortumrelevantDII’switchtoonpositionmdisplay. 10. DP3 19.999 (DIP switch2) SAFETY To comply with the Low Voltage Directive (LVD 93/68/EEC), input voltages to the module’s pins must not exceed 60V d.c. If voltages to the measuring inputs do exceed 60V d.c., then fit scaling resistors externally to the module. The user must ensure that the incorporation of the DPM into the user’s equipment conforms to the relevant sections of BS EN 61010 (Safety Requirements for Electrical Equipment for Measuring, Controland Laboratory Use). OPTIONAL SCREW TERMINAL CONNECTOR - T/BLK-1 @Clo0e L - ceecccceee —) VARIOUS OPERATING MODES ON-BOARD DIP SWITCHES: In order to quickly and easily change operating modes for different applications the meter has several on-board DIP switches. Do not connect more than one meter to the same power supply if the meters cannot use the same signal ground. Taking any inputbeyond the power supply rails will damage the meter: When * When DIP Switch ~=— DIP Switch e SHORT OPEN —=— OFF ON DIP SWITCH FUNCTION

1 DP4 5 COM to GND

2 DP3 6 INLO to GND

3 DP2 7 REFIN to REF + (internal reference connection) 12345678

4 DP1 8 INLO to COM

(Supply must be isolated). T +5V In 45V 1 1 TSV =] ol D—iNm 12345678 . 12345678 £200mv e 10 4iNto com GND oo 2 2 o Tour - Measuring a single ended input Measuring 4-20mA to read 0-999 referenced to supply. (Supply MUST be isolated). Specifications liable to change without prior warning DPM 490 Issue 3 August/2002 MC. Applies to DPM 490/2