User's Manual

1550C/1555
Calibration Manual
8
Display Test
Turn the UUT on several times while observing the display during power up. Compare
the display with the example in Figure 2. Check all segments for clarity and contrast.
1
2
3
4
10
12
11
5
6
7
9
8
gHH03f.EPS
Item Description

Interference present. Readings could be out of specified accuracy range.

Polarization Index

Dielectric Absorption Ratio

Electrical breakdown in Ramp mode

Ramp mode indicator

Possible hazardous voltage is at the test terminals.
 Warning:
To prevent personal injury, before and after testing,
confirm that the product does not indicate the
presence of hazardous voltage. If the product beeps
continuously and there is hazardous voltage,
disconnect test leads and remove power from the
circuit under test.

Voltage sourced by the product or from the circuit under test at terminals of the product.

Test voltage selection (250 V, 500 V, 1000 V, 2500 V, 5000 V, or 10,000 V)

Battery charge status

Bar graph display of insulation resistance

Digital display of insulation resistance

Text display. Shows voltage, test current, capacitance, programmable test voltages, and menu
options.
Figure 2. Display Features