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DIGITAL INSULATION RESISTANCE TESTER

MIS-2D

25V/20MΩ,250V/50MΩ
500V/100MΩ

FEATURES

  • The big digital and bargraph LCD display with back light 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 or capacitor can be checked by warning lamp for safe insulation measurements.
  • Data hold and auto power off function
  • Compact, light weight and heavy duty rugged case.

MIS-3D

25V/ 20MΩ, 250V/ 50MΩ
1000V/2000MΩ

FEATURES

  • The big digital and bargraph LCD display with back light 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 or capacitor can be checked by warning lamp for safe insulation measurements.
  • Data hold and auto power off function
  • Compact, light weight and heavy duty rugged case.

MIS-4D

125V/ 20MΩ, 250V/ 50MΩ
1000V/2000MΩ

FEATURES

  • The big digital and bargraph LCD display with back light 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 or capacitor can be checked by warning lamp for safe insulation measurements.
  • Data hold and auto power off function
  • Compact, light weight and heavy duty rugged case.

SPECIFICATIONS

 

Function : Insulation resistance, AC voltage
Display : 31/2 digit LCD with bargraph display, max.
reading of 3200 count and annunciators
Response time : Less than 5 sec. (Auto ranging)
Data hold indication : ”DH” mark on LCD readout
Infinity indication : ”OL(∞)” mark on LCD readout
(Over 3200 count)
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-2D)
DC 1000V-50MΩ or more (MIS-3D, MIS-4D)
Withstanding voltage : AC 3700V, 1 minute
(Between input terminal and outer case)
Overload protection : 120% of the highest nominal output voltage (10sec.)
Low battery indication : ”B“ mark on LCD readout
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,LR6)×6
Size : 170(W)×105(D)×54(H)㎜
Weight : Approx. 365g (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-2D MIS-3D MIS-4D
Rated voltage & effective
measuring range
125V- 20MΩ 250V- 50MΩ 500V-100MΩ 125V-20MΩ 250V-50MΩ 1000V-2000MΩ 125V-20MΩ 250V-50MΩ 1000V-2000MΩ
Minimum measurable resistance at rated voltage 0.125MΩ 0.25MΩ 0.5MΩ 0.25MΩ 0.5MΩ 1MΩ 0.125MΩ 0.25MΩ 1MΩ
Rated current 1mA+20%-0%
Maximum no-load voltage Rated voltage+30%-0%
Short circuit current < 2mA
Accuracy
Rated voltage DC 125V DC 125V DC 250V DC 500V
0〜20MΩ〜0L(∞) 0〜50MΩ〜0L(∞) 0〜100MΩ〜0L(∞) 0〜2000MΩ〜0L(∞)
First effective range 0.02MΩ〜10MΩ
< ±5%rdg
0.05MΩ〜20MΩ
< ±5%rdg
0.1MΩ〜50MΩ
< ±5%rdg
2MΩ〜1000MΩ
±5%rdg
Second effective range 0.01MΩ〜0.02MΩ
10MΩ〜100MΩ
<±10%rdg
0.02MΩ〜0.05MΩ
20MΩ〜100MΩ
<±10%rdg
0.05MΩ〜0.1MΩ
50MΩ〜100MΩ
<±10%rdg
1MΩ〜2MΩ
1000MΩ〜2000MΩ
<±10%rdg
Other range 100MΩ〜0L(∞)
Not specified
2000MΩ〜0L(∞)
Not specified
AC voltage measurement (50/60Hz)
Range Accuracy lnput impedance Maximum input voltage
AC 600V ±2.5% of full scale Approx.2.0MΩ AC 600V rms