V1 Martel Electronics, V1 Datasheet - Page 4

VOLTMETER LCD 200MV 0.25" DIG HT

V1

Manufacturer Part Number
V1
Description
VOLTMETER LCD 200MV 0.25" DIG HT
Manufacturer
Martel Electronics
Series
Vr
Type
Voltmeterr
Datasheet
1.V1.pdf (4 pages)

Specifications of V1

Measuring Range
200mVDC
Display Style
Black Characters, Grey Background
Display Type
LCD
Display Face Size
1.18" L x 0.31" W (30.0 x 8.0mm)
Display Digits
3.5
Display Digits - Height
0.252" (6.40mm)
Backlight
Without
Mounting Type
Panel Mount
Termination
PC Pins
Voltage - Supply
7 ~ 12VDC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
227-1059
Specifications liable to change without prior warning
SCALING
Two resistors Ra and Rb
may be used to alter the
full scale reading (FSR) of
the meter - see table. The
meter will have to be re-
calibrated by adjusting the
calibration potentiometer
on the rear of the module.
APPLICATIONS
Do not connect more than one meter to the same power supply
if the meters cannot use the same signal ground. Taking any
input beyond the power supply rails will damage the meter.
±200mV
±200mV
Measuring an input voltage referenced to a floating supply,
i.e. the input voltage and the meter's power supply are
isolated from each other. Check Link L1 is closed.
Measuring a single ended input referenced to supply, i.e.
the input voltage and the meter's power supply share the
same 0V rail. Check Link L1 is open.
+
+
-
-
4
4
3
3
IN HI
IN LO
IN HI
IN LO
V 1
V 1
L1
L1
V+
V-
V+
V-
*Ensure that Ra is rated for high voltage use.
2
2
1
1
Voltage
Current
0V
Vin
Iin
+7.0 to +12V
+3.5 to +6.0V
www.lascarelectronics.com
-3.5 to -6.0V
XDP
XDP
DP1
DP1
www.martelmeters.com
2000V*
200mA
6
5
6
5
200 A
20mA
200V
2mA
20V
FSR
2V
V 1
910k
1M
1M
1M
0R
0R
0R
0R
Ra
Issue 3
Measuring a current referenced to a floating supply, i.e. the
current being measured and the meter's power supply are
isolated from each other. Check Link L1 is closed.
100k
100R
100R
10k
10R
Rb
1R
1k
1k
I+
I-
January/2002
3½ Digit LCD Voltmeter Module
Vin or in
4
3
IN HI
IN LO
+
-
I
Normally
SHORTED
Cut to
OPEN
Ra
V 1
V+
V-
L1
M.C.
1
2
Rb
0V
+7.0 to +12V
XDP
DP1
INLO
INHI
Applies to V 1/2
page 4 of 4
6
5
Normally
OPEN
Solder to
SHORT
Page 4 of 4
Page 4 of 4