MIT415/2 and MIT417/2 Insulation Testers
The MIT415/2 and MIT417/2 CAT IV insulation testers are not only designed for electrical and industrial use, but also for an exceptionally wide range of applications including electrical installations, cable testing, motor testing, automotive, ESD, panel building, avionics, maintenance, and more.
The instruments have enhanced insulation testing with feedback-controlled test voltages to limit overvoltage to 2 %, rather than the industry standard of 10 % to 20 %. The output voltage is maintained between 0 and 2 % throughout the test range. Additionally, continuity testing is now significantly faster, and a single autoranging 0.01 Ω to 1.0 MΩ function replaces the “ohms” and “kOhms” ranges. Retained are the 200 mA and 20 mA test options.
Replacing the original MIT400 instruments, these new units feature a redesigned case, back-stand, and a six-cell battery compartment with separate fuse access. All instruments are over-moulded for increased protection and achieve an IP54 weatherproof rating.
The MIT415/2 and MIT417/2 include additional low voltage insulation test voltages at 10 V and 25 V for ESD and low voltage signal-wire testing, as found in lifts/elevators. The MIT415/2 also incluses a display option to show 105, 106, and 107, instead of the usual KΩ, MΩ, and GΩ etc.
Insulation
Test voltage:
MIT415/2 10 V, 25 V, 50 V, 100 V, 250 V, 500 V,
MIT417/2 10 V, 25 V, 50 V, 100 V, 250 V, 500 V, 1000 V
Insulation accuracy
10 Volts | 2 GΩ | ± 2% ± 2 digits ± 2.0% per 100 MΩ
25 Volts | 5 GΩ | ± 2% ± 2 digits ± 0.8% per 100 MΩ
50 Volts | 10 GΩ | ± 2% ± 2 digits ± 4.0% per GΩ
100 Volts | 20 GΩ | ± 2% ± 2 digits ± 2.0% per GΩ
250 Volts | 50 GΩ | ± 2% ± 2 digits ± 0.8% per GΩ
500 Volts | 100 GΩ | ± 2% ± 2 digits ± 0.4% per GΩ
1000 Volts | 200 GΩ | ± 2% ± 2 digits ± 0.2% per GΩ
50V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.5%
100V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.3%
250V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.3%
500V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.3%
1000V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 11.5%
Display range: Analogue: 1 GΩ full scale
Resolution: 0.1 kΩ
Short circuit/charge current: 2 mA +0% -50% to EN 61557-2 (2007)
Open circuit voltage insulation: -0% +2% ± 2V
Test current: 1 mA at min. pass value of insulation to a maximum of 2 mA max
Leakage: 10% ±3 digits
Voltage: ±3% ±3 digits ±0.5% of rated voltage
Timer control: 60 second countdown timer
Continuity
Continuity measurement: 0.01 Ω to 999 kΩ (0 to 1000 kΩ on analogue scale
Continuity accuracy:
±3% ±2 digits (0 to 100 Ω)
±5% ±2 digits (>500 kΩ - 1 MΩ)
Service Error: BS EN 61557-4 (2007) -±2.0%, 0.1 Ω - 2 Ω ±6.8%
Open circuit voltage: 5 V ± 1 V
Test current: 200 mA (–0 mA +20 mA) (0.01 Ω to 4 Ω)
Polarity: Single polarity (Default) / Dual polarity (configurable on setup).
Lead resistance: Null up to 9.00 Ω
Voltage range
Voltage range:
AC: 10 mV to 600 V TRMS sinusoidal (15 Hz to 400 Hz)
DC: 0 to 600 V
Volt range accuracy:
AC: ±2% ±1 digit
DC: ±2% ±2 digits
Service Error: BS EN 61557-1 (2007) -±2.0% ±2d, 0 V 300 V AC/DC ±5.1%
Waveform:
Unspecified range: 0 – 10 mV (15 to 400 Hz)
For non-sinusoidal waveforms additional specifications apply
Non-sinusoidal waveforms:
±3% ± 2 digits >100 mV to 600 V TRMS
±8% ± 2 digits 10 mV to 100 mV TRMS
Frequency (not MIT400/2)
Frequency measurement range: 15 Hz - 400 Hz
Frequency measurement accuracy: ±0.5% ±1 digit (100 Hz to 400 Hz unspecified)
