M235-0-0-82-0 Simpson, M235-0-0-82-0 Datasheet - Page 2

• Manufacturer Part Number: M235-0-0-82-0
• Description: Frequency Meter
• Manufacturer: Simpson
• Type: Frequencyr

Specifications of M235-0-0-82-0

• No. Of Digits / Alpha: 3-1/2
• Meter Function: Frequency
• Meter Range: 20Hz To 1999Hz
• Digit Height: 12.7mm
• Power Consumption: 4VA
• Operating Temperature Range: 0°C To +55°C
• Sample Rate: 3 SPS
• Meter Signal Input: Frequency
• Accuracy: ±0.2% %
• Brand/series: M235 Series
• Connection Type: Screw
• Cut Out, Panel: 0.88×2.68 "
• Depth: 2.36 in.
• Dimensions: 2.84"L×2.36"W×0.95"H
• Display Digit Height: 0.5 "
• Display Resolution: 1 Hz
• Display Type: LCD
• Frequency Range: 40 to 440 Hz
• Function: Frequency
• Height: 0.5 in.
• Humidity: 0 to 85% Non Condensing @ 40 °C
• Indicator Type: 3-1⁄2 Digit
• Material, Casing: Thermoplastic
• Number Of Digits: 4-1/2
• Primary Type: Electronic
• Range, Measurement: 20 to 1999 Hz
• Size, Bezel: 0.95 in. x 2.84 in.
• Standards: UL Listed
• Temperature, Operating: 0 to 55 °C
• Termination: Screw
• Voltage, Input: 85 to 250 VAC
• Voltage, Supply: 85 to 250 VAC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Basic Unit
Mini-Max Frequency Indicators are configured by making an entry for each box.
Input Signal:
Supply Power:
Reading Hold:
The mounting brackets, included with every Mini-Max, can
be connected together. Multiple units can be mounted in a
single opening, allowing perfect alignment.
To punch one hole for multiple units, be sure to adjust the
standard panel cutout dimensions as shown here; other-
wise the meters will not fit properly in the hole.
Mounting multiple units is quick and easy. Install the first
meter (bottom unit first if stacking vertically). Position the
next mounting bracket snugly against the first one, and
slide the second meter into place. Repeat for remaining
units.
DISPLAY
Type: 7-segment LCD
Height: 0.5” (12.7mm)
Overrange indication: Most significant
digit = “1”; other digits blank
Backlighting:
Optional negative image, red LED backlighting
Polarity: Auto with “-” indication, “+” implied
POWER REQUIREMENT
85-250VAC @40-440Hz
Power Consumption:
2.5VA min/4VA max
ACCURACY @ 25ºC:
200 Hz: ±0.2% of input ± 0.2Hz
M235
Stacking Features
Specifications
Wiring Display
Ordering Information
3-1/2 Digit
Indicator
Connect the IN HI and IN LO to the signal to be monitored.
Connect the power to the L1 and L2 terminals. Backlighting power for the optional negative image, bright red LED backlight-
ing is supplied by the Mini-Max, so no additional external power supply is required.
Connect HOLD to COM/HOLD. If this feature is not required, the HOLD pin may remain unconnected (open).
Display
These instruments are designed for maximum safety to the operator when mounted in a panel according to instruc-
0
1
Non Backlight
Negative Image Red
tions. They are not to be used unmounted or for exploratory measurements in unknown circuits.
DPM Power Supply
(Input Signal) IN HI
(Input Signal) IN LO
0
85-250 VAC
ACCURACY @ 25ºC: (cont.)
2 kHz: ±0.2% of input ± 2Hz
INPUT LEVEL: 500mV to 750VRMS at 1.0M
impedance OR 5V to 24V Square Wave (DC off-
set 2V maximum)
Resolution: 200Hz = 0.1Hz
CONVERSION
Technique: Frequency-to-voltage
Rate: 3 samples/second-typical
ENVIRONMENTAL
Operating Temperature: 0 to 55°C
Storage Temperature: -10 to 60°C
HOLD
DP3
DP2
DP1
Standard cutout
2kHz = 1Hz
Vertical
Range
.88"
81
82
83
84
2.68"
20-199.9 Hz RMS
20-1999 Hz RMS
20-199.9 Hz Sq. Wave (5-24V)
20-1999 Hz Sq. Wave (5-24V)
Standard cutout
.
88"
Excitation Output
Add to standard
when stacking
.071"
2.68"
0
Horizontal
L1 (POS) (Power)
L2 (NEG) (Power)
EX (NEG)
EX (POS)
DP COMMON
(HOLD)
None
Horizontal
ENVIRONMENTAL (cont.)
Relative Humidity:
0 to 85% non condensing @ 40°C
Temperature Coefficient:
(
Warmup time: Less than 15 minutes
MECHANICAL
Bezel: .95" x 2.84"
Depth: 2.36" (60mm)
Panel Cutout: .88" x 2.68"
Weight: 3.5oz (99.2g)
Case Material:
94-0,UL-rated, glass-filled thermoplastic
0.02% of input
(24mm x 72mm)
Safety Symbol
Add to standard when stacking
(22.2mm x 68mm)
The WARNING sign denotes
a hazard. It calls attention to
a procedure, practice, or the
like, which, if not correctly
performed or adhered to,
could result in personal
injury.
0.2 digits)/ C
.16"
Vertical