M-245-1-0-33-0-NIST Simpson

Mini-Max M235 & M245 Digital Panel Meters LCD LED 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 1 Rev. 07-25-19Mini-Max M235 & M245 Digital Panel Meters Specications LCD LED M235 M245 M235 M245 DISPLAY Type 7 segment Height 0.5 (12.7 mm) 0.56 (14.2 mm) 0.4 (10.2 mm) Decimal Point (Selectable) 3 position 4 position 3 position 4 position Overrange Indication Most signicant digit = 1 Blinking Display Backlighting Optional negative image, Red Backlight N/A Polarity Auto with - indication, + implied POWER REQUIREMENTS AC Volt 85 - 250 VAC 40 - 440Hz DC Volt 9 - 32 DCV 9 - 32 DCV POWER CONSUMPTION 85 - 250 VAC LCD 4.0 VA (2.4W ) Max. 3.6 VA (2.16W ) Max. 9 - 32 DCV LCD 3W Max. LED 2W Max. ISOLATION 250 VRMS Max ACCURACY 25 C 200 Hz 0.2% of input 0.2 Hz Not Available 2 KHz 0.2% of input 2 Hz DC V & A (0.1% of Reading 1 count) (0.04% of Reading 1 count) (0.1% of Reading 1 count) (0.04% of Reading 1 count) DC 2A (0.25% of Reading 1 count) DC 5A (0.5% of Reading 1 count) AC TRMS V & A (0.5% of Reading + 5 count) (0.5% of Reading + 50 count) (0.5% of Reading + 2 count) (0.5% of Reading + 10 count) ( 50 Hz - 2 KHz ) ( 50 Hz - 2 KHz ) ( 50 Hz - 5 KHz ) ( 50 Hz - 5 KHz ) DC Process (0.02% of Reading 1 count) EXCITATION CURRENT 25mA (Maximum) ENVIRONMENTAL 0 to 55C Storage Temperature -10 to 60C Relative Humidity 0 to 85% non condensing 40C Temperature Coefcient 0.2% of input 0.5 digits / C WARM-UP TIME Less than 20 minutes NOISE REJECTION CMRR 86 dB Typical A TO D CONVERSION Integrating Dual Slope Technique Rate 3 samples/second typical FREQUENCY METER Technique Frequency-to-voltage Not Available INPUT LEVEL (Frequency Meter) 500mV to 270 VRMS 1.0 Meg ohm or 5V to 24V SquareWave Not Available (DC offset = 2Vmax) MECHANICAL Bezel 0.95 x 2.84 (24 mm x 72 mm) Depth 2.36 (60 mm) Panel Cutout 0.88 x 2.68 (22.2 mm x 68 mm) Weight 3.5 oz. (99.2 g) 2.6 oz. (74 g) Case Material 94-0, UL-rated, glass-lled thermoplastic 07-25-19 2 Rev.