mini-max M235 - M2450 pages
Mini-Max M235 & M245 Digital Panel Meters )
• 3/64 DIN Indicator
■ Unique mounting bracket allows stacking
of multiple units
> Screw terminal connectors for easy
installation
■ LCD: 3-1/2 or 4-1/2 digit, 0.5" high LCD display
with optional negative image, bright red
backlighting
• LED: 3-1/2 digit, 0.56" high display
• LED: 4-1/2 digit, 0.40" high display
• Limited range display scaling
LCD mi.
LED
INPUTS
DC Voltage
Range | Resolution M235 | Resolution M245 | Input Impedance | Max Input Unfused |
200mV | 100uV | 10uV | 10MEG | 100VDC |
2V | 1mV | 100uV | 10MEG | 250VDC |
20V | 10mV | 1mV | 10MEG | 250VDC |
200V | 100mV | 10mV | 9.9MEG | 250VDC |
600V | 1V | 100mV | 9.9MEG | 600VDC |
DC/AC TRMS Current
Range | Resolution | LCD | LCD | LED | LED | |
Voltage | Max Input | Voltage | Max Input | |||
M235 | M245 | Drop | Unfused | Drop | Unfused | |
200uA | 100nA | 10nA | 200mVDC | 10mA | 200mVDC | 6mA |
2mA | 1uA | 100nA | 200mVDC | 40mA | 200mVDC | 20mA |
20mA | 10uA | 1uA | 200mVDC | 100mA | 200mVDC | 60mA |
200mA | 100uA | 10uA | 200mVDC | 400mA | 200mVDC | 300mA |
2A | 1mA | 100uA | 200mVDC | 3A | 200mVDC | 2.6A |
5A | 10mA | 1mA | 50mVDC | 6A | 100mVDC | 6A |
Specifications | LCD | LED | |||
M235 [ M245 | M235 i M245 | ||||
DISPLAY Type: Height: Decimal point (Selectible] Overrange indication: Backlighting: Polarity: | 7 Segment | ||||
0.5" (12.7mm) | 0 56 (14 2mm) | 0.4" (10.2mm) | |||
3 posh ■. | 4 position | 3 position | 4 position | |||
Most significant digit ="1" | Blinkinq Display | ||||
Optional negative image, Red Backlight | NA | ||||
Auto with "-" indication,"+"implied | |||||
POWER REQUIREMENTS AC Volt: DC Volt: | 85-250VAC @40-440Hz | ||||
9-32DCV | NOT AVAILABLE | ||||
POWER CONSUMPTION 85-250VAC: 9-320CV: | LCD4.0VA(2.4W) Max | 3.6VA(2.16W) Max | |||
LCD 3 W Max | NOT AVAILABLE | ||||
ISOLATION | 250Vrms Max | ||||
ACCURACY @25°C 200 Hz 2 KHz DC V & A DC 2A DC 5A AC TRMS V & A | ±0.2% of input* 0.2Hz ±0.2%ofinput±2Hz | NOT AVAILABLE | |||
±(0.1% of Reading ± 1 count) | ±(0.04% of Reading ± 1 count) |±(0.1% of Reading ± 1 count)|±(0.04% of Reading ± 1 count) | ||||
±(0.25% of Reading ± 1 count) | |||||
±(0.5% of Reading ± 1 count) | |||||
±(0.5% of Reading + 5 count) (50 Hz - 2KHz) | ±(0.5% of Reading + 50 count) (50 Hz-2KHz) | ±(0.5% of Reading + 2 count) (50 Hz - 5KHz) | ±(0.5% of Reading + 10 count) (50 H7 - 5KHz) | ||
DC Process: | +(0.02% of Reading + 1 count) | ||||
EXCITATION CURRENT | 25mA (Maximum) | ||||
ENVIRONMENTAL Storage Temperature: Relative Humidity: Temperature Coefficient | 0 to 55°C | ||||
-10to60°C | |||||
0 to 85% non condensing @ 40°C | |||||
0 2% or input ± 0.5 digits/'C | |||||
WARM-UP TIME | Less than 20 minutes | ||||
NOISE REJECTION CMRR | 86dB Typical | ||||
A TO D CONVERSION Technique: Rate: | Integrating Dual Slope | ||||
3 samples/second typical | |||||
FREQUENCY Technique: | Frequency-to-voltage | NOT AVAILABLE | |||
INPUT LEVEL (Frequency Meter) | 500 mV to 270VRMS @ I.OMeg ohm or 5V to24V SquareWave (DC offset = 2Vmax) | ||||
MECHANICAL Bezel Depth Panel cutout Weight Case Material | 0.95" x 2.84" (24mm x 72mm) | ||||
2.36" (60mm) | |||||
0.88" x 2.68" (22.2mm x 68mm) | |||||
3.5oz(99.2g) J 2.6 oz (74g) | |||||
94-O.UL-rated, glass-filled thermoplastic |
AC TRMS Voltage
Range | Resolution M235 | Resolution M245 | Input Impedance | Max Input Unfused |
200mV | 100uV | 10uV | 500K | 10VAC |
2V | 1mV | 100uV | 100K | 100VAC |
20V | 10mV | 1mV | 1MEG | 200VAC |
200V | 100mV | 10mV | 1 MEG | 200VAC |
270V | 1V | 100mV | 1MEG | 270VAC |
600V | IV | 100mV | 9.9MEG | 600VAC |
DC Process
Range | Resolution M235 | Resolution M245 | Voltage Drop | Max Input Unfused |
4 to 20mA | 0.1% | 0.01% | 200mVdc | 60mA |
1 to 5Vdc | 0.1% | 0.01 % | Input Impedance 10MEG | 250VDC |
0to10Vdc | 0.1% | 0.01% | 10MEG | 250VDC |
0to100Vdc | 0.1% | 0.01% | 10MEG | 250VDC |
1
Rev. 04-01-13
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