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ANALOG INSULATION RESISTANCE TESTER

MIS-1A

50V/10MΩ, 125V/20MΩ
250V/50MΩ

FEATURES

  • The single and fluorescent scale indicator for 3 ranges insulation measurements enabled easy observation. Especially useful when working in dark place.
  • Hand free and continuous measurements with custom made switch
  • Safe design with built in automatic discharging function for any capacitors present in the circuit.
  • The voltage in the circuit can be pre-checked without any switch operation for safe insulation measurements.
  • Compact,light weight and heavy duty rugged case.

MIS-2A

25V/ 20MΩ, 250V/ 50MΩ
500V/100MΩ

FEATURES

  • The single and fluorescent scale indicator for 3 ranges insulation measurements enabled easy observation. Especially useful when working in dark place.
  • Hand free and continuous measurements with custom made switch
  • Safe design with built in automatic discharging function for any capacitors present in the circuit.
  • The voltage in the circuit can be pre-checked without any switch operation for safe insulation measurements.
  • Compact,light weight and heavy duty rugged case.

MIS-3A

125V/ 20MΩ, 250V/ 50MΩ
1000V/2000MΩ

FEATURES

  • The single and fluorescent scale indicator for 3 ranges insulation measurements enabled easy observation. Especially useful when working in dark place.
  • Hand free and continuous measurements with custom made switch
  • Safe design with built in automatic discharging function for any capacitors present in the circuit.
  • The voltage in the circuit can be pre-checked without any switch operation for safe insulation measurements.
  • Compact,light weight and heavy duty rugged case.

MIS-4A

250V/ 50MΩ, 500V/ 100MΩ
1000V/2000MΩ

FEATURES

  • The single and fluorescent scale indicator for 3 ranges insulation measurements enabled easy observation. Especially useful when working in dark place.
  • Hand free and continuous measurements with custom made switch
  • Safe design with built in automatic discharging function for any capacitors present in the circuit.
  • The voltage in the circuit can be pre-checked without any switch operation for safe insulation measurements.
  • Compact,light weight and heavy duty rugged case.

SPECIFICATIONS

 

Function : Insulation resistance,AC voltage, battery check
Meter movement : 100μA,870Ω,taut band meter.
Safety standard : IEC 61010-1 CATⅡ, 600V
E.M.C. standard : EN 61326
Constructional standard : IEC 61557-2
Insulation resistance : DC 500V-50MΩ or more (MIS-1A, MIS-2A)
DC 1000V-50MΩ or more (MIS-3A, MIS-4A)
Withstanding voltage : AC 3700V,1 minute
(Between input terminal and outer case)
Overload protection : 120% of the highest nominal output voltage (10sec.)
Battery check : DC 6.3V〜9.5V
Low battery limit : DC6.3V
Temperature characteristics (0〜40℃) : ±5%rdg of specified accuracy
Operating temperature : 0℃ to 40℃,80% RH max.
(Non-condensing)
Storage temperature : -10℃ to 60℃ 80% RH max.
(Non-condensing)
Power supply : 1.5V (“AA” size,R6)×6
Size : 170(W)×105(D)×54(H)㎜
Weight : Approx.330g(Excluding batteries)
Accessories : Line test lead ……………..1
Earth test lead ……………1
Batteries ……………………6
Test lead case ……………1
Belt …………………………..1
Instruction manual ………1
Optional accessory : Remote switch test lead

Measuring Ranges and Technical Data

Insulation resistance measurement
Model MIS-1A MIS-2A MIS-3A MIS-4A
Rated voltage & effective
measuring range
50V-10MΩ
125V-20MΩ
250V-50MΩ
125V- 20MΩ
250V- 50MΩ
500V-100MΩ
125V-20MΩ
250V-50MΩ
1000V-2000MΩ
250V-50MΩ
500V-100MΩ
1000V-2000MΩ
Center scale 0.2MΩ/0.5MΩ/1MΩ 0.5MΩ/1MΩ/50MΩ 0.5MΩ/1MΩ/2MΩ 1MΩ/2MΩ/50MΩ
Minimum measurable resistance at
rated voltage
0.05 MΩ
0.125MΩ
0.25 MΩ
0.125MΩ
0.25MΩ
0.5 MΩ
0.125MΩ
0.25MΩ
1MΩ
0.25MΩ
0.5MΩ
1MΩ
Rated current 1mA+20%-0%
Maximum no-load voltage Rated voltage+30%-0%
Short circuit current < 2mA
Accuracy
Rated voltage DC 50V DC 125V DC 250V DC 500V DC 1000V
First effective range 0.01MΩ〜5MΩ
±5%rdg
0.02MΩ〜10MΩ
±5%rdg
0.05MΩ〜20MΩ
±5%rdg
0.1MΩ〜50MΩ
±5%rdg
2MΩ〜1000MΩ
±5%rdg
Second effective range 0.005MΩ〜0.01MΩ
5MΩ〜10MΩ
±10%rdg
0.01MΩ〜0.02MΩ
10MΩ〜20MΩ
±10%rdg
0.02MΩ〜0.05MΩ
20MΩ〜50MΩ
±10%rdg
0.05MΩ〜0.1MΩ
50MΩ〜100MΩ
±10%rdg
1MΩ〜2MΩ
1000MΩ〜2000MΩ
10MΩ〜50MΩ ±10%rdg
10MΩ〜50MΩ
±30%rdg
20MΩ〜100MΩ
±30%rdg
50MΩ〜100MΩ
±30%rdg
AC voltage measurement (50/60Hz)
Range Accuracy lnput impedance Maximum input voltage
AC 600V ±2.5% of full scale Approx.1.5MΩ AC 600V rms