User Guide

10
IRT803
OFF
ZERO
ZERO
FUSED
V
Ω
COM
INSULATION
V
1000V
500V
250V
100 V
I
N
S
U
L
A
T
I
O
N
T
E
S
T
E
R
600V
CAT IV 600V
CAT III 1000V
COMPARE
LOCK
PI/DAR
TEST
SELECT
HOLD
Apo
V
• Default =
TEST
• Set Rotary dial to a desired voltage position.
• The display will show “----” until a valid resistance reading is obtained.
• The High Voltage symbol will display if greater than 30V AC or DC is present.
• Press and hold the TEST button on the Meter or Remote Probe to start the test. Test stops when TEST button is released.
• Keep test leads on test points after TEST button is released. The circuit under test will then discharge.
Features:
LOCK
PI/DAR
COMPARE
TEST
Note: When the resistance is higher than the maximum display range the tester displays the > symbol and the maximum
resistance for the range.
WARNING
Do not measure resistance on a live circuit.
OUTPUT VOLTAGE DISPLAY RANGE RESOLUTION TEST CURRENT ACCURACY
100V (0% to +20%)
0.01 to 20.00MΩ 0.01MΩ
1mA @ 100kΩ ±(3% +5dgts)
20.0 to 100.0MΩ 0.1MΩ
250V (0% to +20%)
0.01 to 20.00MΩ 0.01MΩ
1mA @ 250kΩ ±(1.5% +5dgts)
20.0 to 200.0MΩ 0.1MΩ
500V (0% to +20%)
0.01 to 20.00MΩ 0.01MΩ
1mA @ 500kΩ ±(1.5% +5dgts)20.0 to 200.0MΩ 0.1MΩ
200 to 500MΩ 1MΩ
1000V (0% to +20%)
0.1 to 20.0MΩ 0.1MΩ
1mA @ 1MΩ
±(1.5% +5dgts)
20 to 2000MΩ 1MΩ
2.0 to 20.0GΩ 0.1GΩ ±(10% + 3dgts)
1. Measurement Range: 0.01MΩ to 20GΩ
2. Test Voltages: 100, 250, 500, 1000V
3. Test Voltage Accuracy: 0 to +20%
4. Short-Circuit Test Current: 1mA nominal
5. Auto Discharge: Discharge time <0.5 sec. for C = 1µF or less
6. Live Circuit Detection: Inhibit test if terminal voltage >30V prior to initialization of test
7. Maximum Capacitive Load: Operable with up to 1µF load
OFF
1000V
500V
250V
100 V
V
ZERO
OFF
1000V
500V
250V
100 V
V
ZERO
OFF
1000V
500V
250V
100 V
V
ZERO
Insulation Resistance/1000V/ 500V/ 250V/ 100V
IRT803
Apo
0 0.1 M 1 M 10 M 100 M 1 G 20 G
V
DC
M