Seaward 220 PrimeTest - Manual (Page 12)

Operating Instructions
Primetest 220
5
4.2 LCD and Keymat
1) Digital display for all measurement readings and
polarity indication.
2) Small digital display used to indicate Pass/Fail
criteria or secondary test requirements for
selectable test functions e.g. Polarity.
3) Battery indicator - symbol is illuminated
depending on battery health status (see section
5.6).
4) button, enables or disables the audio buzzer.
When selected the symbol is illuminated on the
LCD display. The audible alarm is activated as an
audio representation of either a PASS or a FAIL
condition.
5) button, enables or disables the lock function
and allows test parameters for and to be
applied up to 30 seconds (see section 8.2.6 and
8.6.8). When selected the symbol is illuminated
on the LCD display.
6) button compensates for the test lead resistance
in Class I safety test. When selected the symbol
is illuminated on the LCD display.
7) button, switches the display illumination on
or off.
8) button is used to start tests and activate the
RCD and Zs measuring functions.
9) Rotary switch selects the required test function
(see section 4.1).
10) Equipment under test (EUT) socket.
11) Negative (black) socket.
12) Mains input socket.
13) IEC test socket.
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