Measurement equipment

Test methods: Specification verification

Criteria: Manufacturer’s specifications

Qualification data (Name and type of the qualified item, identification, and technical report):

TREK 370 non-contacting electrostatic voltmeter, S/N 275, C575/2017 V1.0-4-8.2017,

TREK 520 non-contacting electrostatic voltmeter, S/N 354, C574/2017 V1.0-4-8.2017,

TREK 541A-1 non-contacting electrostatic voltmeter, S/N 1265, C571/2017 V1.0-3.8.2017,

TREK 542-1 non-contacting electrostatic voltmeter, S/N 31, C573/2017 V1.0-4.8.2017,

TREK 821HH contacting electrostatic voltmeter (HIDVM), S/N 012, C572/2017 V1.0-3.8.2017.