Seaward A203ES - Manual (Page 7)

OPERATING PROCEDURES
Product Description
Model A203ES Heavy-Duty Flash tester, variable 0-5kV with Total Leakage monitored and displayed on a
meter scaled 0-2.5mA.
Setting Up
Site the instrument in accordance with the General Guidelines, earlier in this manual, so as to promote ease
of use and operator safety.
Ensure the H.T. VOLTS control is set to zero (fully anti-clockwise) and the H.T. Probes are housed in the
rear panel mounted scabbards.
Connect the instrument supply lead to a 220/230 Volt 50Hz EARTHED supply.
Switch the SUPPLY switch on and note the amber ON lamp illuminates.
Depress the FLASH FAULT RESET button to reset the Flash trip and cancel the warning signals.
Set the key operated H.T. TRIP mA switch to the required position.
In the 5mA position the key is removable.
In the 5mA position the Total Leakage milliammeter is a direct reading 0-2.5mA
In the 25mA position the Total Leakage milliammeter is multiplied by 10 (0-25mA)
In the 125mA position the Total Leakage milliammeter is multiplied by 100 (0-250mA)
Increase the H.T. VOLTS control (clockwise) until the required test output voltage is indicated on the 0-5kV
meter.
NOTE – when the H.T. TRIP mA key switch is set to the 125mA position the Flash
test output is potentially lethal.
ONLY SKILLED TECHNICIANS SHOULD USE THE TEST EQUIPMENT.
Suitable interlocks and safety guards surrounding the test piece should be
installed.
OM_A203ES Page 7 of 7