Clibration Check Box

Checks that test instruments are maintaining their calibration; avoids costly and time-consuming site revisits due to inaccurate test equipment.
Provides peace of mind that your test instruments are reading correctly at all times especially when faced with an unexpected reading. Is quick and easy to use.
• Non-trip RCD testing method
• Test lead nulling point
• Six insulation check levels (Plus correct output check)
• Five continuity check levels (Plus correct output check)
• Two loop impedance test points plus local loop
• Five checks covering 30mA and 100mA RCD's
• Checks RCD over current test
Includes
Protective case /mains lead/ test leads for resistance and insulation checks/ calibration certificate with measured values