Hsiang Cheng MF Series, Digital Panel Meters Frequency Panel Meters | Electro-Meters

Hsiang Cheng Corp. ^® MF Series Digital Panel Meters, Frequency Panel Meters

Hsiang Cheng, MF Series, Frequency Panel Meters

Characteristics:

Accuracy: 0.02% fs + 1 count)
Temperature coefficient: < 20 ppm per degree C change
Long term draft < < 20 ppm year
4 digits-9999 counts. 5 digits-99999 counts
Display 0.56″super rate LED
Input resistance < 1 Megohoms
Response time Sample rate 1 pf per sec typically
Dielectric strength: 2 KV rms

Product Description:

The MF, power frequency meter, has a wide input voltage range from 30 V to 600 V. It is an accurate & stable meter with high resolution to 0.01Hz unit.

Specifications :

Range:
Accuracy (23 + 3°C):	0.02% fs + 1 count
Stability :	Temperature < 20 ppm per degree C change. Long term draft: < 20 ppm draft per year
Digits & counts:	4 digits-9999 counts. 5 digits-99999 counts.
Display :	0.56” super rate LED
Input Resistance	< 1 Megohoms
Overload :	1 KV rms for 10 secs, 750V continuous
Dielectric strength:	2KVrms / 1 minute, 50 / 60 Hz
Response Time;	1 of per sec. typically
Operating conditions:	2.5 KV rms, terminals to reference groud (case), 2KV rms for input to power
Surge test :	ANSI C37.90 / 1989, IEC 255-3 (1989)
Impulse voltage:	1.2 * 50 us 4 kv, oscillation wave 0.5us-100KHz 3KV, or 1 MHz-0.25ms 2.5KV
Auxilliary Power:	AC version < 3.5VA, DCoptional version “20% < 5 watts
Applied rules and standards
Measuring & conversion:	IEC 688
Dielectric strength:	IEC 688
Impulse & Surge test:	ANSI C37.90.1/1989IEC 255-3 (1989)
Measuring reliability:	VDE 3540

Downloads: General Specifications