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Digital Panel meters and switchboard meters
Hsiang Cheng Corp. ®
MA, MV series, Average Reading
AC Current & Voltage Digital Panel Meters		  
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Hsiang Cheng, MA & MV DMMs

  
 
  Characteristics:  
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  • Accruacy: 0.25% fs or 5 counts, 3-3/4 series
  • 0.15% fs + 1count, 4-1/2 series
  • Stability: Temperature coefficient < 50 ppm per degree c
  • Long term drift < 0.2% per year
  • 3-3/4 digits of 3999 counts maximum, 4-1/2 digits 19999 counts maximum.
  • Display 0.56"super rated LED
  • Response time: Sample rate 1 of per sec typically
  • Input burden: 0.25 VA maximum
  
 
  Product Description:  
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The MA & MV series convert AC to DC averaging . These are low cost, AC current and voltage measuring meters and have a very low burden of 0.25 VA. Their internal shunt provides for direct connection to 1A or 5A CT’s (current transformers) and up to 700 VAC

 
 
  Specifications :  
 
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Range:
Accuracy (23 + 3°C): 0.2% fs
Stability : Temperature coefficient < 50 ppm per degree C
Long term draft < 0.2% per year
Digits & counts: 3-3/4 digits of 3999 counts maximum, 4-1/2 digits 19999 counts maximum
Display : 0.56” super rate LED
Response time : Sample rate 1 of per sec typically
input burden: 0.25 VA maximum
input Overload: Current input : 3 x rating-continuous, 10 x rating-30 sec, 25 x rating-3 sec
Voltage input : maximum continuous of 750V or 3 x rating which ever great
Frequency 48-400 Hz
Dielectric strength: 2.5KV rms / 1 minute, all terminals to reference ground
2KV rms / 1 minute, input terminals to power terminals
Surge test:

ANSI C37.90.1 / 1989, IEC 255-3 (1989)

Impulse Voltage: 1.2 x 50 us 4KV
Oscillating wave : 0.5 us-100 KHz 3KV & 1MHz-0.25 ms 2.5KV
Operating condition Operating temperature :
-10 to 55°C, 0-99% RH non-condensed
Storage:
-25 to 70°C, 20-99% RH non-condensed
Auxiliary power AC / DC version: < 3.5 VA, DC option version ±20% < 5 Watts
Applied rules and standards
Measuring & conversion: IEC 688
Dielectric strength:

IEC 688

Impulse & Surge test: ANSI C37.90.1/1989
IEC 255-3 (1989)
Adaptability-power system: IEC 0110
Measuring reliability: VDE 3540
 
 
  Downloads:  
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  pdf_pic Downloads: General Specifications  
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Head office located at: 900 McKay Rd., Pickering, Ontario L1W 3X8 (click for map)
Sales: 905.428.3413 | Toll-Free: 800.617.3413 | Fax: 905.428.6086 | E-Mail: sales@electro-meters.com

All descriptions and specifications are subject to change without notice
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