EMV 1200-40

**EMV 1200-40** 

Single Hole Mounting 2-Wire Meter 

EMV 1200-40 is an easy to mount LCD digital panel meter. The module features a 4 to 40V measurement range with 200mV 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 40V. To install the meter, the user need only drill a single 5.5mm / / " hole in the panel. The module is fitted to the panel by locating its threaded stud through the hole, fitting the washer and tightening the nut provided. The module's connecting wires pass through the hollow stud into the target application for connection. A rubber seal is included, providing splash proof protection for the unit when fitted to the meter during installation. 

- **Single Hole Mounting** 

- **2-Wire Operation** 

- **4 to 40V d.c. Full Scale Reading** 

- **12.5mm / 0.5" LCD Digit Height** 

- **Reverse Polarity Protection** 

Shown Actual Size 

- **Splashproof** 

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Stock Number<br>APPLICATION Easy Mounting Voltmeter EMV 1200-40<br>+4 to +40V d.c.<br>Specification Min. Typ. Max. Unit<br>Accuracy (overall error) 0.4 V (±1 count)<br>RED Linearity ±1 count<br>Valid displayed reading* 4.0 40.0 V d.c.<br>Resolution 200 mV d.c.<br>Sample rate 3 sample/sec<br>Operating temperature range 0 50 °C<br>Supply voltage 3 50 V d.c.<br>Supply current 3 mA<br>mere ==<br>BLACK * At voltages below 4.0V d.c., the LCD will display LO and will ultimately go blank.<br>At Voltages in excess of 40.0V d.c., the LCD will display HI.<br>Do NOT exceed 50V d.c., as this may damage the meter.<br>0V The module includes reverse polarity protection up to 30V for up to 30 seconds.<br>Operation and accuracy at voltages above 40.0V or below 4.0V are not specified.<br>SAFETY<br>To comply with the Low Voltage Directive (LVD 93/68/EEC), input voltages to the module’s wires must not exceed 60Vd.c. The user must ensure that the incorporation<br>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<br>Laboratory Use).<br>DIMENSIONS All dimensions in mm (inches)<br>Seal<br>Panel 2 wires - 30cm (12.0)<br>EMV 1200-40<br>esas »<br>Reading when Vin < 4V,<br>A L uf yen /<br>before display switches off.<br>44.0 (1.73)<br>Nut<br>REAR VIEW en \ =H aie<br>9.0 Washer<br>10.5 (0.35)<br>(0.41) 1 5.00 Reading when Vin > 40V. ca)<br>(0.20)<br>10.5<br>CAL<br>(0.41) FITTING THE EMV 1200-40<br>0<br>Drill a 5.5mm / / " hole in the panel. Fit seal to the rear of the module. Fit the module to the<br>|i<br>panel by passing its screw threaded stud and the wires through the hole, fitting the washer and<br>22.0 (0.87) 22.0 (0.87)<br>tightening the nut provided. Take care not to trap either of the connecting wires. Do not to over<br>Module thickness: 5.5mm (0.22") tighten the nut as this may damage the meter.<br>Specifications liable to change without prior warning EMV 1200-40 Issue 11 06/2010 IRCN 716 S.L. Applies to EMV 1200/2<br>21.0 (0.82)<br>**----- End of picture text -----**<br>


## **SAFETY** 

To comply with the Low Voltage Directive (LVD 93/68/EEC), input voltages to the module’s wires 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 Laboratory Use). 

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

**LASCAR ELECTRONICS LTD. LASCAR ELECTRONICS INC. LASCAR ELECTRONICS (HK) LTD. MODULE HOUSE, 4258 WEST 12th STREET, 8th FLOOR, CHINA AEROSPACE CENTRE, 143 HOI BUN WHITEPARISH, ERIE, PA 16505 ROAD, KWUN TONG, KOWLOON, HONG KONG WILTSHIRE SP5 2SJ UK USA TEL: +852 2389 6502 FAX: +852 2389 6535 TEL: +44 (0)1794 884567 FAX: +44 (0)1794 884616 TEL: +1 (814) 835 0621 FAX: +1 (814) 838 8141 E-mail: saleshk@lascar.com.hk E-MAIL: sales@lascar.co.uk E-MAIL: us-sales@lascarelectronics.com** 

**EMV 1200-40** 

Single Hole Mounting 2-Wire Meter 

**AUTOMOTIVE AND MARINE PROTECTION** 

Fig. 1 

Automotive and maritime applications can create harsh conditions for electronic devices. Fig. 1 shows the type of protection we recommend is added when the EMV 1200-40 is used in an application of this nature. We suggest a high wattage 33 ohm resistor is used in series with two 5W zener diodes where the value of each zener is at least 3V higher than the maximum you intend to measure. Alternatively it is possible to use a single 1500W transient voltage suppressor (TVS) in place of the zener diodes. In addition it is recommended that the meter is connected as close to the battery as is convenient. 

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

**EMV 1200-40 Issue 11 06/2010 IRCN 716 S.L. Applies to EMV 1200/2** 

**LASCAR ELECTRONICS LTD. LASCAR ELECTRONICS INC. LASCAR ELECTRONICS (HK) LIMITED MODULE HOUSE, 4258 WEST 12th STREET, UNIT NOS. 6-8, 19/F FUTURA PLAZA, WHITEPARISH, ERIE, PA 16505 111-113 HOW MING STREET, WILTSHIRE SP5 2SJ UK USA KWUN TONG, KOWLOON,, HONG KONG TEL: +44 (0)1794 884567 FAX: +44 (0)1794 884616 TEL: +1 (814) 835 0621 FAX: +1 (814) 838 8141 TEL: +852 2389 6502 FAX: +852 2389 6535 E-MAIL: sales@lascar.co.uk E-MAIL: us-sales@lascarelectronics.com E-MAIL: purchasing@lascar.com.hk**