M235-0-0-13-0 Simpson, M235-0-0-13-0 Datasheet - Page 2

• Manufacturer Part Number: M235-0-0-13-0
• Description: Digital Panel Meters DCV 20V 3.5 DIGIT
• Manufacturer: Simpson
• Type: DC Voltmeterr

Specifications of M235-0-0-13-0

• Equipment Type: DC Voltmeter
• Input: 20 V
• Display Type: 7 - Segment LCD
• Accuracy: ±0.1% %
• Common Mode Rejection Ratio: 90 dB (Min.) with 1 Kiloohms Unbalanced @ 60 Hz
• Connection Type: Screw
• Cut Out, Panel: 0.88×2.68 "
• Digit Height: 0.5
• Dimensions: 2.84"L×2.36"D×0.95"H
• Display Digit Height: 0.5 "
• Display Range: Limited
• Display Resolution: 10 mV
• Function: Voltage
• Input Impedance: 10 Megohms
• Material, Casing: Thermoplastic
• Meter Type: Digital
• Number Of Digits: 4-1/2
• Power Consumption: 2.5⁄4.5 VA (Max.)
• Primary Type: Electronic
• Range, Measurement: 20 VDC
• Standards: UL Listed
• Temperature, Operating: 0 to +55 °C
• Voltage, Input: 750 V (Max.)
• Voltage, Supply: 85 to 250 VAC
• Weight: 3.5 Oz.
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Decimal Point:
Display Hold:
Input Signal:
Input Power:
DISPLAY
Type:
Height:
Decimal point:
Overrange indication:
Backlighting:
backlighting
Polarity:
POWER REQUIREMENTS
AC Volt:
DC Volt:
Power Consumption:
85-250VAC: 2.5VA min/4VA max
9-32VDC: 1.5VA min/3VA max
Rated Circuit to Ground Voltage:
ACCURACY @ 25°C
±(0.1% of reading
Using a screwdriver or thumbnail,
spread tab on each side of case to
unlock top half. Lift rear top half and
slide away from front of meter.
OF METER
Wiring Display
Display Scaling
Specifications
FRONT
7-segment LCD
0.5” (12.7mm)
85-250VAC @40-440Hz
9-32VDC
Auto with “-” indication, “+” implied
Optional negative image, red
3-position programmable
1 count)
To select a decimal point, connect the appropriate DP pin (DP1, DP2, or DP3) to the DP COMMON (HOLD). Unused DP inputs
may remain unconnected (open).
Connect HOLD to DP COMMON (HOLD). If this feature is not required, the DP COMMON (HOLD) pin may remain uncon-
nected (open).
Connect the IN HI and IN LO to the signal to be monitored.
Connect power to the L1 and L2 terminals. For AC powered units, L1 and L2 are not polarized.
For 9-32 DC powered units, L1 must be positive with respect to L2.
Most significant digit = “1”
These instruments are designed for maximum safety to the operator when mounted in a panel according to instruc-
LOCKING
TOP HALF
OF CASE
TAB
(Input Signal) IN HI
(Input Signal) IN LO
tions. They are not to be used unmounted or for exploratory measurements in unknown circuits.
750VRMS
Mini-Max indicators have limited
coarse and fine adjustments for display
scaling.
tions required for these to function. The
“coarse” calibration R12 will allow a limited
range of scaling values. The meter can be
scaled down to 1/2 the value of the input or
scaled up to 2 times the value of the input
or a maximum reading of 1.999, which
ever is lower. Example: A 2 volt input has
a maximum reading of 1.999 so you cant
double the 2 volts, but you can make 1
volt to read 1999.
R9 allows for an approximate range of 1%
of the “coarse” calibration. Apply full scale
input to the meter. Adjust R12 to be within
1% of the desired scaled value, then use
R9 to obtain the final desired result.
HOLD
ENVIRONMENTAL
Operating Temperature:
Storage Temperature:
Relative Humidity:
@ 40°C
Temperature Coefficient:
(
Warmup time:
NOISE REJECTION
NMRR:
CMRR:
ANALOG TO DIGITAL CONVERSION
Technique:
Rate:
MECHANICAL
Bezel:
DP3
DP2
DP1
0.02% of input
There are no optional connec-
(24mm x 72mm)
3 samples/second-typical
0.95” x 2.84”
60dB, 50/60Hz
(w/1K
Integrating
unbalanced @ 60Hz): 90dB min
Less than 20 minutes
The “fine” calibration
0.2 digits)/ C
0 to 85% non condensing
-10 to 60°C
0 to 55°C
range
Note: Any physical damage to the meter during calibra-
tion will void the warranty.
L1 (POS) (Power)
L2 (NEG) (Power)
EX (NEG)
EX (POS)
DP COMMON
(HOLD)
MECHANICAL (cont.)
Depth:
Panel cutout:
Weight:
Case Material:
moplastic
INPUTS: DC Voltage
Range
200mV
200V
20V
2V
2.36” (60mm)
3.5oz (99.2g)
Resolution
100mV
(22.2mm x 68mm)
100μV
10mV
1mV
0.88” x 2.68”
94-0,UL-rated, glass-filled ther-
Impedance
>100 M
10 M
10 M
10 M
Input
Maximum
Input
100V
750V
750V
750V