SP 5-1200-BL

SP 5-1200-BL 

2-Wire Signal-Powered Meter 

This low cost, compact indicator is ideally suited for low or high volume applications. SP 5-1200-BL is an easy to mount LCD digital panel meter. The module features a 4 to 25V measurement range with 100mV resolution and is powered from the signal it is measuring. Only valid readings are displayed; the module indicates "LO" at voltages below 4V and "HI" at voltages above 25V. Screw terminals allow for quick and easy connection. The module is panel mounted using the metal clip provided and a rubber seal is included, providing splashproof protectionfortheunitwhenfittedtothemeterduringinstallation. 

- **2-Wire Operation (excluding backlighting) 4 to 25V d.c. Full Scale Reading** 

- **18mm / 0.7" LCD Digit Height Reverse Polarity Protection** 

- **No Calibration Required (pre-calibrated for use) Splashproof** 

- **LED Backlighting (via separate supply)** 

- **Screw Terminal Connections** 

## **ELECTRICAL SPECIFICATIONS** 

|**Specification**<br>~~a~~|**Specification**<br>~~a~~|**Min.**<br>~~es~~|**Typ.**<br>~~ee~~|**Max.**<br>~~i~~|**Unit**<br>~~ee~~|
|---|---|---|---|---|---|
|Accuracy (overall error)<br>~~eS~~<br>~~a~~||~~eS~~<br>~~es~~|0.2<br>~~eS~~<br>~~ee~~|~~eS~~<br>~~i~~|V(±1 count)<br>~~eS~~<br>~~ee~~|
|Linearity<br>~~a~~||~~es~~<br>~~SS~~|~~ee~~<br>~~SS~~|1<br>+<br>~~i~~<br>~~(Oe~~|count<br>~~ee~~<br>~~(Oe~~|
|y<br>Valid displayed reading*<br>~~a~~<br>~~a~~<br>~~a~~||4.0<br>~~es~~<br>~~SS~~<br>~~SS~~<br>~~,~~|~~ee ~~<br>~~SS~~<br>~~SS~~<br>~~es~~|25.0<br> ~~i~~<br>~~(Oe~~<br>~~es~~|V d.c.<br>~~ee~~<br>~~(Oe~~<br>~~[ee~~|
|Resolution<br>~~a~~<br>~~ee~~||~~,~~<br>~~S(O~~|100<br>~~es~~<br>~~S(O~~|~~es~~<br>~~S(O~~|mV d.c.<br>~~[ee~~<br>~~S(O~~|
|Sample rate<br>~~a~~<br>~~ee~~||~~,~~<br>~~S(O~~|3<br>~~es~~<br>~~S(O~~|~~es~~<br>~~S(O~~|samples/sec<br>~~[ee~~<br>~~S(O~~|
|Operatingtemperature range<br>~~ee~~<br>~~ee~~<br>~~a~~<br>~~———————~~||0<br>~~S(O~~<br>~~ee~~<br>~~———————~~|~~S(O~~<br>~~ee~~<br>~~———————~~|50<br>~~S(O~~<br>~~ee~~<br>~~———————~~|°C<br>~~S(O~~<br>~~ee~~<br>~~———————~~|
|Supply voltage<br>~~a~~|Meter<br>~~———————~~|3<br>~~———————~~<br>~~a~~|~~———————~~<br>~~es~~|50<br>~~———————~~|V d.c.<br>~~———————~~|
||Backlighting<br>~~———————~~|~~———————~~<br>~~a~~|5<br>~~———————~~<br>~~es~~|~~———————~~|V d.c.<br>~~———————~~|
|Supply current<br>~~a~~<br>~~J~~|Meter<br>(@ 9V d.c.)<br>~~———————~~<br>~~J~~|~~———————~~<br>~~a~~<br>~~J~~|1.5<br>~~———————~~<br>~~es~~<br>~~J~~|~~———————~~<br>~~J~~|mA<br>~~———————~~<br>~~J~~|
||Backlighting (@ 5V d.c.)<br>~~J~~<br>~~SS~~|~~J~~<br>~~SS~~|50<br>~~J~~<br>~~SS~~|~~J~~<br>~~SS~~|mA<br>~~J~~<br>~~SS~~|



* At voltages below 4.0V d.c., the LCD will display LO and will ultimately go blank. At Voltages in excess of 25.0V d.c., the LCD will display HI. Do NOT exceed 50V d.c., as this may damage the meter. The module includes reverse polarity protection up to 30V for up to 30 seconds. Operation and accuracy at voltages above 25.0V or below 4.0V are not specified. 

## **SAFETY** 

To comply with the Low Voltage Directive (LVD 93/68/EEC), input voltages to the module’s connections must not exceed 60Vd.c. The user must ensure that the incorporation of the meter into the user’s equipment conforms to the relevant sections of BS EN 61010 (Safety Requirements for Electrical Equipment for Measuring, Control and LaboratoryUse). 

LASCAR ELECTRONICS LTD. LASCAR ELECTRONICS INC. LASCAR ELECTRONICS (HK) LTD. MODULE HOUSE, 4258 WEST 12th STREET, 8th FLOOR, CHINA AEROSPACE CENTRE, WHITEPARISH, ERIE, 143 HOI BUN ROAD, WILTSHIRE SP5 2SJ, PA 16505, KWUN TONG, KOWLOON, UK USA HONG KONG TEL: +44 (1794) 884567 TEL: +1 (814) 835 0621 TEL: +852 2389 6502 FAX: +44 (1794) 884616 FAX: +1 (814) 838 8141 FAX: +852 2389 6535 E-mail: sales@lascar.co.uk E-mail: us-sales@lascarelectronics.com E- mail: saleshk@lascar.com.hk 

_**Specifications liable to change without prior warning**_ **SP 5-1200-BL Issue 7 06/2010 S.L. Applies to SP 5-1200/2** 

SP 5-1200-BL 

2-Wire Signal-Powered Meter 

## **DIMENSIONS** 

All dimensions in mm (inches) 

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48.0 (1.89)<br>; 46.0 (1.81) : “ a 7 b c |<br>AG<br>Y Y<br>14.4 (0.57) 14.4 (0.57)<br>a. 0.95 (0.04)<br>b. 6.5 (0.26)<br>c. 8.5 (0.33)<br>Panel thickness: 1.0 - 2.0<br>(0.04 - 0.08)<br>47.0 (1.85)<br>(1.42) (1.34)<br>36.0 34.0<br>(1.38)<br>35.0<br>**----- End of picture text -----**<br>


## **PANEL FITTING** 

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Panel<br>Module Seal Metal Clip<br>1 2 3<br>**----- End of picture text -----**<br>


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FUNCTIONAL BLOCK DIAGRAM CONNECTIONS (rear view)<br>V+<br>|<br>Z\ Vref<br>BL+<br>eh BL-<br>1 +_ A/D Lert ~<br>a i<br>0V<br>Specifications liable to change without prior warning SP 5-1200-BL Issue 7 06/2010 S.L. Applies to SP 5-1200/2<br>V+ 0V BL+ BL-<br>**----- End of picture text -----**<br>


SP 5-1200-BL 

2-Wire Signal-Powered Meter 

## **SCREW TERMINAL FUNCTIONS** 

- V+ Positivepowersupplytothemeter/voltagebeingmeasured. 0V 0Vpowersupplytothemeter/voltagebeingmeasured. 

- BL+ PositivepowersupplytotheLEDbacklighting. BLNegativepowersupplytotheLEDbacklighting. 

Whenthejumperlinkisplacedoverbothpins,locatednexttothescrewterminals,thisconnectsthe0VoftheLED backlightingtothe0Vofthesignalbeingmeasured.Thisallowsfor3-wireoperationofthemodule. Thisconnectionshouldonlybemadeifbothpowersuppliescanshareacommon0Vline. 

## **SCALING** 

Thismodulecannotbere-scaledforothervoltageorcurrentscales. 

## **APPLICATIONS** 

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+4 to +25Vd.c. +4 to +25Vd.c. a VBL<br>V+ V+ S1<br>BL+<br>Lo Le BL- R = ee VBL - 5V<br>0.05<br>0V 0V R R is not needed<br>I<br>if VBL=5V (then<br>0V 0V 0V connect BL- to 0V)<br>**----- End of picture text -----**<br>


Measuring a voltage in the range 4 to 25V d.c. 

Powering the LED backlighting from a separate supply. Close switch S1 to turn on the backlighting. 

Note: - add a series resistor R if the backlighting supply voltage is higher than 5V d.c. 

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+7.5 to +25Vd.c.<br>V+ S1<br>O/P I/P<br>7805*<br>BL+<br>* High input<br>voltage version<br>Ons BL-<br>0V<br>Lo 7<br>0V<br>Powering the LED backlighting from the voltage being<br>measured. The additional load of the backlighting on the<br>voltage being measured may cause this voltage to drop.<br>**----- End of picture text -----**<br>


The voltage regulator may require a heatsink to limit its temperature rise. Ensure that the maximum input specification of the voltage regulator considerable exceeds the maximum peak voltage that can be experienced on the supply line being monitored. 

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

**SP 5-1200-BL Issue 7 06/2010 S.L. Applies to SP 5-1200/2**