Seaward 200 PrimeTest - Manual (Page 23)

8.7.7 If an external voltage of 30 V AC/DC or greater is present at the tips of
the test probes a repetitive audible alarm sounds along with the
flashing high voltage symbol being displayed and the button
9 is inhibited.
8.7.8 In order to proceed, remove the external voltage from the circuit or test
object to be measured.
8.7.9 To perform a resistance measurement, press the test button 9
8.7.10 The large display 2 indicates the digital and analogue resistance
measurement in Ω to 19.99 then K Ω to 20K.
Where the measured resistance value is greater than 20K Ω the large
display indicates > 20.0 K Ω . If the display show F3 refer to section 9.5
8.8 Insulation Resistance Measurement Function, M Ω .
See Figure 10
Attention - Disconnect the IEC mains cable from the IEC socket
before commencing this test. Electric Shock Danger!
During an insulation resistance measurement a high voltage is
present at the tips of the test probes. It should be noted that this
voltage can be present on bare metal parts of the appliance
being tested.
Do not exceed the maximum permitted voltage of 30 V AC/DC with
respect to earth potential! Electric shock danger!
8.8.1 Ensure the circuit or test object to be measured is voltage free. Ensure
the IEC mains lead is disconnected from the PrimeTest 200.
8.8.2 Select the insulation resistance measurement function on the rotary
switch 10 . The LCD will display two probe symbols to indicate that both
safety test leads are required.
8.8.3 Plug the black test lead into the negative, black socket 12 on the
PrimeTest 200.
8.8.4 Plug the red test lead into the positive, red, socket 13 on the
PrimeTest 200.
8.8.5 Connect the red and black test leads to the circuit or object to be
measured.
8.8.6 If an external voltage of 30 V AC/DC or greater is present at the tips of
the test probes a repetitive audible alarm sounds along with the
flashing high voltage symbol being displayed and the button 9 is
inhibited.
8.8.7 In order to proceed, remove the external voltage from the circuit or test
object to be measured.
8.8.8 To perform an insulation resistance measurement, press the
button 9 .
8.8.9 The large display 2 indicates the digital and analogue insulation
resistance measurement in M
Ω up to 200 M Ω .
Where the measured insulation resistance value is greater than
200M
Ω , the large display indicates >200M Ω . If the display shows F3
refer to section 9.5
PrimeTest 200
Operating Instructions
13