15
Earth-bond Resistance
IRT807
OFF
ZERO
kHz
Temp
SMOOTH
mV
mA
INSULA
TION
V
V
50V
1000V
INSULATION TESTER
Apo
MIN/MAX
LOCK
Hz
Test Voltage
F C
SELECT
TEST
RANGE
PI/DAR
A-HOLD
0
0.1 M
1 M
10 M
100 M
1 G
2 G
V
DC
M
IRT807
Apo
• Default =
• Press x1 =
ZERO
SELECT
NOTE:
Measurements can be adversely affected by impedances of additional operating circuits connected in parallel or
transient currents.
1. Insert test leads into the Zero/Ω and Com input ports.
2. Turn the rotary dial selector to the Zero/Ω position.
3. Short the test leads together. Press the
SELECT Button
and wait until ZERO appears on the display. The tester measures the
probes resistance, stores the value in memory and subtracts it from tests. The probes resistance is saved even when the tester
is powered off. If the probes resistance is >2Ω, the resistance will not be saved.
4. Connect the test leads to the circuit to be tested. The tester will automatically detect if the circuit is energized.
5. The dashes (----) will display until the
TEST Button
is pressed and a valid resistance value is detected.
6.The High Voltage symbol will display if greater than 2V AC/DC is present.
If this is happens, the test is corrupted. Disconnect the test leads and remove power before testing again.
7. Press and hold the
TEST Button
on the Meter or Remote Probe to start the test. The TEST symbol will appear on the display
until the
TEST Button
is released. The resistance value is displayed until a new test is started or a different function or range
is selected.
Features:
TEST
LOCK
A-HOLD
SELECT
NOTE:
When the resistance is higher than the maximum display range the tester displays the > symbol and the maximum
resistance for the range.
WARNING
NEVER test resistance on a live circuit. (Overload Protection: AC 2V rms or DC)
RANGE
RESOLUTION
ACCURACY
1
20.00Ω
0.01Ω
±(1.5% +3 dgts)
200.0Ω
0.1Ω
2000Ω
1Ω
20.00kΩ
0.01kΩ
1. Accuracies apply from 0 to 100% of range
2. Open Circuit Test Voltage: > 4.0V, < 8V
3. Short Circuit Current: > 200.0 mA
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