Buttons On The Device; Rotary Switch - TESTBOY TV 431 Bedienungsanleitung

Instrument description

Buttons on the device

Buttons
1 Activates the memory function: The measurement data is transferred to the memory.
2 Activates the display function; changes the position of the cursor to display the saved files.
3 1: in DC-V-, AC-V- and continuity mode, display of the highest, lowest and average value, the upper
and lower limit values, and the relative value
2: in insulation test mode, display of the highest, lowest and average value, the upper and lower limit
values, the pre-set time function, the differential absorption ratio and the polarisation index.
4 Enter button for confirmation.
5 Switches the background illumination on or off; if activated, the background illumination switches it-
self off automatically after 10 s.
6 Activates the time function.
7 Activates the data hold function (DC-V-, AC-V-, continuity mode) or the locking function (insulation
test mode).
8 Activates the relation function (DC-V-, AC-V-, continuity mode); change the cursor position.
9 Activates the comparison function.
10 Selects a test output voltage for the insulation test
11 Activates the insulation test

Rotary switch

Position
OFF Switches off the instrument
V
DC voltage: 0.1 V – 1000 V
V
AC voltage 0.1 V – 750 V
Resistance and continuity 0.01 Ω – 200.0 Ω
Insulation test 0.01 MΩ – 100.0 GΩ, test output voltage 250 V (factory setting), 500 V, 1000 V,
Insulation
2500 V, the test output voltage selected is saved.
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Description
Function
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Testboy TV 431