6
OVERVIEW AND OPERATING INSTRUCTIONS
IRT803
OFF
ZERO
ZERO
FUSED
V
Ω
COM
INSULATION
V
1000V
500V
250V
100V
INSULATION TESTER
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:
• Used to choose measurement mode from a single dial selection.
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.
N. Test Lead Holders:
Used for hands-free testing or storage
A
F
E
H
B
C
G
J
I
D
L
K
M
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