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Operating Instructions
General operation
The S1-568, S1-1068 and S1-1568 insulation resistance testers
(IRTs) are primarily controlled by two rotary switches and a TEST
button used to start and stop a test (see section entitled,
“Instrument Control and Indicators”).
The range rotary switch includes an ‘OFF’ position; the instrument
switches on by rotating the switch either clockwise or
anticlockwise from this position. A range of test voltages for
insulation resistance tests up to 5 kV (S1-568), 10 kV (S1-1068)
and 15 kV (S1-1568) are available, including a user selectable
voltage range which can be set between 40 V and 5000V or
10000 V or 15000 V depending on the model. The ‘lockable’ test
voltage range (
V
L
) can be adjusted within the settings function.
With the central rotary switch pointing at the spanner symbol and
mode switch at IR, the settings for lock voltage, low resistance
alarm, temperature / humidity and time/date are able to be
changed and set.
A light blue coloured section of the rotary switch denotes memory
functions; open records, download via USB or Bluetooth
®
and
delete records. A dedicated save button is provided and all
models have a backlight button.
The mode rotary switch controls the insulation test type:
•
Basic insulation resistance IR, timed insulation resistance
IR(t), Dielectric Absorption Ratio (DAR), Polarisation Index
(PI) and Dielectric Discharge (DD).
•
Overvoltage tests Step Voltage (SV) and ramp test.
•
Remote control mode (
+
V
L
) test selection; start and
stop of a test and other functions are set by a computer
via a USB cable.
A cluster of directional buttons and an OK button are used in settings
and memory functions. The up/down arrows also enable the test
voltage to be adjusted during IR and IR(t) tests. Prior to the start of
an IR or IR(t) test, holding down the left arrow button with a voltage
level selected on the central rotary switch will activate burn mode.
Burn mode is deactivated if the voltage range or mode is changed or
by pressing the right arrow/breakdown button.
Instrument controls are simple to operate. The central rotary switch
incorporates the OFF position. The left hand rotary switch selects
insulation test type. The TEST button starts and stops a test. Image
depicts instrument setup for Remote Control mode.
Four arrow b OK facilitate adjustment and selection of
settings, voltages and modes. Breakdown/burn modes are set using
the left and right arrow buttons. Backlight, Save and Filter functions
are dedicated buttons.
