DPM3AS-BL Martel Electronics, DPM3AS-BL Datasheet - Page 4

• Manufacturer Part Number: DPM3AS-BL
• Description: LCD 11MM UNIV MINI METER BK LIT
• Manufacturer: Martel Electronics
• Series: 10r
• Type: Voltmeterr

Specifications of DPM3AS-BL

• Measuring Range: 0 ~ 200mVDC
• Display Style: Black Characters, Green Background
• Display Type: LCD
• Display Face Size: 1.48" L x 0.53" W (37.5 x 13.5mm)
• Display Digits: 3.5
• Display Digits - Height: 0.433" (11.00mm)
• Backlight: Green
• Mounting Type: Panel Mount
• Termination: PC Pins
• Voltage - Supply: 3 ~ 7.5VDC, 6 ~ 15VDC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 227-1049

DPM 3AS-BL
SCALING
T wo external 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.
Do not connect more than one meter to the same power supply if the meters cannot use the same signal
Measuring a single ended input
voltage referenced to supply , i.e. the
input voltage and the meter’s power
supply share the same 0V rail.
Ensure solder link LREF is closed.
Measuring a single ended input
voltage referenced to supply , i.e. the
input voltage and the meter’s power
supply share the same 0V rail.
Ensure solder link LREF is closed.
APPLICATIONS
ground. T aking any input beyond the power supply rails will damage the meter .
5V supply operation
9V supply operation
–200mV
–200mV
+3.0 to +7.5V
+3.0 to +7.5V
+
+
-
-
-3.0 to -7.5V
1M
1M
10nF
10nF
3
2
4
5
3
2
4
5
INHI
INLO
COM
REF LO
INHI
INLO
COM
REF LO
GND
V+
V+
V-
8
7
8
1
(3.0 to 7.5V Meter Power Supply)
(6.0 to 15.0V Meter Power Supply)
0V
*Ensure that Ra is rated for high voltage use.
–200mV
–200mV
Voltage
Current
PO Box 770, Londonderry, NH 03053 1-800-821-0023
www.martelcorp.com
(Vin)
( in)
I
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.
Ensure solder link LREF is closed.
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.
Ensure solder link LREF is closed.
+6.0 to +15.0V
+
+
+3.0 to +7.5V
www.lascarelectronics.com
-
-
1M
1M
2000V*
10nF
10nF
200mA
DPM 3AS-BL
200 A
20mA
200V
2mA
20V
FSR
2V
m
3
2
4
5
3
2
4
5
INHI
INLO
COM
REF LO
INHI
INLO
COM
REF LO
910k
1M
1M
1M
0R
0R
0R
0R
Ra
GND
V+
V+
V-
7
8
8
1
Issue 4
L+
L+
L-
L-
100k
100R
100R
10R
10k
13
12
13
12
Rb
1k
1k
1R
3‰ Digit Backlit LCD Voltmeter Module
if V+>5V then
Rs=(V+ - 5V)
Rs=(V+ - 5V)
December/2002
0V
0V
Vin or in
0.04
0.04
+
-
Measuring a current from a circuit which is
floating with respect to the DPM’s supply ,
i.e. the current and the meter’s power
supply are isolated from each other.
Ensure solder link LREF is closed.
Measuring a current from a circuit which is
floating with respect to the DPM’s supply ,
i.e. the current and the meter’s power
supply are isolated from each other.
Ensure solder link LREF is closed.
I
Ra
I
I-
I
I-
+
+
Rb
Rb
+6.0 to +15.0V
M.C.
+3.0 to +7.5V
Rb
Input Filter
1M
1M
1M
10nF
10nF
Applies to DPM 3AS-BL/5
10nF
3
2
4
5
3
2
4
5
INHI
INLO
COM
REF LO
INHI
INLO
COM
REF LO
INHI
DPM 3AS-BL
INLO
GND
V+
V+
V-
8
7
8
1
0V
0V
4