User Guide

6
OVERVIEW AND OPERATING INSTRUCTIONS
IRT803
OFF
ZERO
ZERO
FUSED
V
Ω
COM
INSULATION
V
1000V
500V
250V
100V
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
A. Worklight: Lights work area in dark environments.
B. Display: High contrast and backlit.
C. Apo: Auto power off after 10 minutes of use
D. Select Button:
• Press to start battery test in AC/DC V mode.
• Press to activate Zero mode in Earth-bond resistance testing.
E. PI/DAR (Polarization Index/Dielectric Absorption Ratio) Button: Use PI for test of insulation deterioration and DAR for
extended insulation resistance test.
• Press x1 for PI mode.
• Press x2 for DAR mode.
F. Back light/ Worklight Button: Press to turn on worklight and back light.
G. Test Button: Start and stop measurement insulation, earth-bond resistance test and PI/PAR test. Also, used for testing the fuse.
H. Function Dial: Turns on meter and is used to select the function.
I. Category Max Indicator: Maximum CAT Rating for input jacks.
• Use CATIII test leads or higher
• Zero/Ω Test Lead Port: Fused, used for Zero Ohms.
• Common Test Lead Port:
• Volt/Insulation Test Lead Port: CATIV 600V/CATII 1000V, used for Volts, Continuity and Insulation test
J. Compare Button: Used to set a pass/fail compare level for insulation measurements.
K. Lock Button: Locks insulation or earth-bond resistance test to ON position. When pressed before the TEST button, the test
remains active until you press the lock or test button again to release the lock.
L. Hold Button:
• Press x1 for Hold mode.
M. Protective Rubber Boot: With molded comfortable grip.
A
F
E
H
B
C
G
J
I
D
L
K
M
N
O
Q
P