The handheld PrimeTest 250 PAT tester features all of the portable appliance testing electrical safety tests required to meet the IEE Code of Practice including RCD trip time, protective conductor current and touch current.

This portable appliance tester also includes a 250V DC insulation test suitable for testing sensitive electrical appliances and surge protected leads, and can test 3 phase industrial plant and equipment*. Connecting this battery-powered tester to a mains supply allows protective conductor current or touch current measurements to be made automatically.

Using the PrimeTest 250 ensures your portable appliance testing is now quicker and easier because all electrical safety tests are carried out against pre-set limits with measured test result values and clear PASS/FAIL indication on the large display.

*Adaptor required for 3 phase testing.

*Please note the PrimeTest 250 PAT Tester does not have a backlight.

Earth continuity

Output Current	200mA
Test Voltage (o/c)	9V DC nominal
Test Duration (Class I Test)	2s nominal
Display Range	0.01ohm to 19.99ohm
Pass Value (Class I Test)	0.2ohm

 

Insulation resistance

Test Voltage	250/500VDC @1mA nominal, < 2mA (s/c)
Test Duration (Class I or II)	2s
Display Range	0.01Mohm to 19.99Mohm
Pass Value	1.0MOhm Class I
	2.0MOhm Class II

Equivalent leakage

Test Voltage	40V Nominal AC 50Hz Open Circuit
Test Duration	2s nominal
Display Range	0.1mA to 19.99mA
Pass Value	0.75mA CLI / 0.25mA CL II

IEC lead test

Test voltage	5V DC nominal
Test Duration	Time for test (2s max)
Test	Live/Neutral Checks for o/c, s/c and crossed

Protective Conductor Current

Test Voltage	Supply Voltage, max current 13A
Test Duration	30s maximum
Display Range	0.15mA to 9.99mA
Pass Value	0.75mA/3.5mA (user selectable with 0.75mA as default)

Touch current

Test Voltage	Supply Voltage, max current 13A
Test Duration	30s maximum
Display Range	0.10mA to 5.00mA
Pass Value	0.25mA

3 phase differential leakage current

*Requires 3 phase adaptor accessory
Test Voltage	3 phase supply voltage
Test Duration	continuous measurement
Display Range	0.10 mA to 9.99 mA
Pass Value	3.5mA

RCD trip time

Test Voltage	Mains supply voltage
Test Current	30mA
Test Current Phase	0°/180° auto switched on alternate tests
Measuring Range	0ms – 500ms
Pass Value	200ms

 

Power socket check

Input voltage range	225 – 254V AC max current 13A UK
Measurement range	50V to 250V
Indicates measured voltage and pass/fail for:
Line to earth, line to neutral, neutral to earth