Martel Electronics QM100V-40 User Manual
EMV 1200-40 Single Hole Mounting 2-Wire Meter
QM100V-40
QM100V-40
EMV 1200-40 is aneasy tomount LCDdigital panelmeter.
it is measuring. Only valid readings are displayed;the module indicates "LO" at voltagesbelow 4V and "HI" at voltages above 40V.
only drill a single 5.5mm / hole in the panel. The module is ttedto the panel by locating its threaded stud through the hole, tting the washer and tightening the
nut provided. The module's connecting wires pass through the hollow stud into the target application for connection.
splashproof protectionfor theunit whentted tothe meter during installation.
7
"
/
32
The module features a4 to40V measurement range with 200mVresolution andis poweredfrom thesignal
To install the meter, the user need
A rubber seal is included, providing
Single Hole Mounting
2-Wire Operation
4to40
V d.c. Full Scale Reading
12.5mm / 0.5" LCD Digit Height
Reverse Polarity Protection
Shown Actual Size
Splashproof
APPLICATION
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 LaboratoryUse).
DIMENSIONS
21.40 (0.84)
All dimensions in mm (inches)
+4 to +40V d.c.
RED
BLACK
0V
Specication Min. Typ. Max. Unit
Valid displayed reading* 4.0 40.0 V d.c.
Operating temperature range 0 50 °C
* Atvoltages below4.0V d.c.,the LCDwill display and willultimately goblank.
At Voltages inexcess of40.0V d.c., theLCD willdisplay .
Do NOTexceed 50V d.c., asthis maydamage themeter.
The moduleincludes reversepolarity protectionup to30V forup to 30seconds.
Operation andaccuracy atvoltages above40.0V orbelow 4.0Vare not specied.
Reading when Vin < 4V,
before display switches o.
egatlovylppuS
LO
HI
WARNING! In automotive applications or where an alternator
is present and there is the possibility of a transient voltage
spike it is recommended to use some type of transient
voltage suppressor (TVS) to protect the meter.
METER
TVS ZENER DIODE
Martel Part Number: 80311
Stock Number
QM100V-40
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7
/
32
43.50 (1.71)
21.75 (0.85)
5.00
(0.20)
Fit seal to the rear of the module. Fit the module to
Reading when Vin > 40V.
REAR VIEW
10.70
(0.42)
10.70
(0.42)
21.75 (0.85)
Module thickness: 5.5mm (0.22")
FITTING THE EMV 1200-40
FITTING THE QM100V-40
Drill a 5.5mm / " hole in the panel.
the panel by passing its screw threaded stud and the wires through the hole, tting the
washer and tightening the nut provided. Take care not to trap either of the connecting
wires. Do
not to overtighten the nut as this may damage the meter.
PO Box 770, Londonderry, NH 03053 1-800-821-0023
www.martelcorp.com
TVS DIODE
+–
Seal
EMV 1200-40
QM100V-40
Digikey (www.digikey.com)
Part Number: 1N6287AGOS-ND
9.0
(0.35)
Panel
2 wires - 30cm (12.0)
Nut
Washer
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