PrimeTest 250


If you're looking for the PrimeTest 250 datasheet featuring full technical specifications or the instruction manual, you can find them here.


Insulation Resistance
Test Voltage250/500VDC @1mA nominal, < 2mA (s/c)
Test Duration (Class I or II)2s
Display Range0.01 Mohm to 19.99 Mohm
Pass Value1.0 MΩ Class I, 2.0 MΩ Class II
IEC Lead Test
Test Voltage5V DC nominal
Test DurationTime for test (2s max)
TestLive / Neutral Checks for o/c, s/c and crossed
Touch Current
Test VoltageSupply Voltage, max current 13A
Test Duration30s maximum
Display Range0.10 mA to 5.00 mA
Pass Value0.25mA
RCD trip time
Test VoltageMains supply voltage
Test Current10mA / 30mA rms sinusoidal
Test Current Phase0°/180° auto switched on alternate tests
Measuring Range0ms – 500ms
Pass Value200ms
Earth Continuity
Output Current200mA minimum into 2Ω
Test Voltage (o/c)9V DC nominal
Test Duration (Class I Test)2s nominal
Display Range0.01 ohm to 19.99 ohm
Pass Value (Class I Test)0.2Ω
Equivalent Leakage
Test Voltage40V Nominal AC 50Hz Open Circuit
Test Duration2s – 30s nominal
Display Range0.1 mA to 19.99mA
Pass Value0.75mA CLI / 0.25mA CL II
Protective Conductor Current
Test VoltageSupply Voltage, max current 13A
Test Duration30s maximum
Display Range0.15 mA to 9.99 mA
Pass Value0.75mA/3.5mA (user selectable with 0.75mA as default)
3 phase differential leakage current (*Requires 3 phase adaptor accessory)
Test Voltage3 phase supply voltage
Test DurationContinuous measurement
Display Range0.10 mA to 9.99 mA
Pass Value3.5mA
Power Socket Check
Input voltage range225 – 254V AC max current 13A UK
Indicates configuration of voltage potentialLine potential phase to earth, Line potential phase to neutral, Line potential neutral to earth

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