M235-1-0-36-0 Simpson, M235-1-0-36-0 Datasheet - Page 2

• Manufacturer Part Number: M235-1-0-36-0
• Description: Panel Meter, Digital; 85-250V, 3-1/2 digit LCD, neg red backlit, 270VAC TRMS
• Manufacturer: Simpson
• Type: Voltager

Specifications of M235-1-0-36-0

• Accuracy: ± (0.5% of Reading + 5 Count)
• Common Mode Rejection Ratio: 90 dB
• Digit Height: 0.47
• Dimensions: 2.68 H × 2.84 L × 0.974 W
• Display Digit Height: 0.5 In.
• Display Resolution: 100 mV
• Frequency, Operating: 60 Hz
• Function: Voltage
• Input Impedance: 10 Megohms
• Material, Casing: Glass filled Thermoplastic
• Meter Type: 3-1⁄2 Digit Indicator
• Number Of Digits: 3-1/2
• Power Consumption: 4 VA
• Temperature, Operating: 0 to +55 °C
• Voltage, Input: 750 V
• Voltage, Supply: 85 to 250 VAC
• Weight: 99.2 g

Decimal Point:
Display Hold:
Input Signal:
Input Power:
DISPLAY
Type:
Height:
Decimal point:
Overrange indication:
digit = “1”
Backlighting:
backlighting
Polarity:
POWER REQUIREMENTS
AC Volt: 85-250VAC @40-440Hz
DC Volt:
Power Consumption:
85-250VAC: 2.5VA min/4VA max
9-32VDC: 1.5VA min/3VA max
Rated Circuit to Ground Voltage:
750VRMS
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.
Specifications
Wiring Display
OF METER
Display Scaling
FRONT
7-segment LCD
0.5” (12.7mm)
9-32VDC
Auto with “-” indication, “+” implied
Optional negative image, red
3-position programmable
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
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.
Mini-Max indicators have limited range coarse
and fine adjustments for display scaling.
There are no optional connections required
for these to function. The “COARSE” calibra-
tion 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 1999, which ever is lower. Example: a 2
volt input has a maximum reading of 1.999
counts, so you cant double the 2 volts, but
you can make 1 volt to read 1.999.
“FINE” calibration R9 allows for an approxi-
mate 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
ACCURACY @ 25°C
±(0.5% of reading + 5 count) (50 Hz - 2KHz)
ENVIRONMENTAL
Operating Temperature:
Storage Temperature:
Relative Humidity:
@ 40°C
Temperature Coefficient:
Warmup time:
NOISE REJECTION
NMRR:
CMRR:
ANALOG TO DIGITAL CONVERSION
Technique:
Rate:
(
DP3
DP2
DP1
0.02% of input
3 samples/second-typical
60dB, 50/60Hz
(w/1K
Integrating
Less than 20 minutes
unbalanced @ 60Hz): 90dB min
0.2 digits)/ C
0 to 85% non condensing
-10 to 60°C
0 to 55°C
The
L1 (POS) (Power)
L2 (NEG) (Power)
EX (NEG)
EX (POS)
DP COMMON
(HOLD)
Note: Any physical damage to the moter dur-
ing calibration will void the warranty.
MECHANICAL
Bezel:
Depth:
Panel cutout:
Weight:
Case Material:
INPUTS: AC Voltage
200mV
Range
200V
20V
2V
0.95” x 2.84” (24mm x 72mm)
2.36” (60mm)
3.5oz (99.2g)
Resolution
(22.2mm x 68mm)
100mV
100μV
10mV
1mV
thermoplastic
0.88” x 2.68”
94-0,UL-rated glass-filled
Impedance
>100 M
10 M
10 M
10 M
Input
Maximum
100V
750V
750V
750V
Input