IRT807
1000V AC/DC Digital Insulation
Resistance Tester
INSTRUCTION MANUAL
ENGLISH
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0 0.1 M 1 M 10 M 100 M 1 G 2 G
Apo
Test Voltage
SELECT
MIN/MAX
RANGE
F C
TEST
mV
ZERO
OFF
kHz
Temp
V
V
IRT807
M
LOCK
A-HOLD
PI/DAR
Hz
mA
SMOOTH
1000V
50V
V
INSULATION
DC
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TABLE OF CONTENTS
FEATURES ..................................................................................................................................................5
GENERAL SPECIFICATIONS
IMPORTANT SAFETY WARNINGS
SYMBOLS ..................................................................................................................................................7
CATEGORY DEFINITIONS
OVERVIEW
OPERATING INSTRUCTIONS
Voltage: <1000V AC ...................................................................................................................9
Voltage: with 1kHz “low-pass” filter <1000V ..............................................................................10
Voltage: <1000V DC .......................................................................................................................10
DC mV: 1mV to 400mV ...................................................................................................................11
Temperature: -328˚ to 2462˚F (-200˚ to 1350˚C) ...........................................................................11
Resistance ......................................................................................................................................12
Continuity ........................................................................................................................................12
Diode Test ......................................................................................................................................13
Capacitance ....................................................................................................................................13
mAmps AC/DC .......................................................................................................................... 14
Frequency .......................................................................................................................................14
Earth-bond Resistance ..................................................................................................................15
Insulation Resistance/ 1000V/ 500V/ 250V/ 100V/ 50V ........................................................... 16
Measuring Polarization Index and Dielectric Absorption Ratios ................................................17
Test Lead Notes ..............................................................................................................................17
Testing the Fuse ..............................................................................................................................18
Battery Replacement .....................................................................................................................18
Fuse Replacement ...........................................................................................................................18
DISPOSAL
CLEANING
STORAGE
WARRANTY
.......................................................................................................................................... 8 - 9
................................................................................................................................................20
................................................................................................................................................20
................................................................................................................................................20
..............................................................................................................................................20
..................................................................................................................5
.......................................................................................................6
........................................................................................................................7
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FEATURES
• Insulation Resistance 2.0GΩ
• Earth-bond Resistance 20.00kΩ
• 1000V AC/DC
• Resistance 40MΩ
• Capacitance 10,000μF
• Frequency 99.99kHz
• Continuity and Diode test
• mAmps
• Temperature: -328˚ to 2462˚F (-200˚ to 1350˚C)
• PI/DAR test
• A-Hold/ Hold
• Zero reading
• Lock reading
• Rotary style selector
• Protective rubber boot
• Kick stand
• Test lead holders
• Remote probe
• Auto power off
• Backlit Display
• Worklight
GENERAL SPECIFICATIONS
• Operating Temperature: 32˚ to 122˚F (0˚ to 50˚C)
• Storage Temperature: 14˚ to 122˚F (-10˚ to 50˚C)
• Operating Humidity: <75%
• Operating Altitude: 6,526 ft (2000m)
• Pollution Degree: 2
• Over range: “OFL” is displayed
• Backlight: Yes
• Refresh Rate: 3/sec
• Dimensions: 8.27” x 3.52” x 2.17”
• Item Weight: 1.283 lbs
• Calibration: Recommended annually
• CAT Rating: CATIV 600V/ CATIII 1000V
• Certifications: CATIV 600V/CATIII 1000V, cETLus 3rd Edition, CE Conformity, IP42, RoHS,
IEC/EN61010-1: 2010, 6’ Drop Protection
• Battery Type: (AA) 4
• Test Leads: Silicone test leads w/ alligator clips (red and black) (ATL57), Remote Probe
• Accuracy: ± (% of reading + # of least significant digits)
• Bargraph: 30 segment
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IMPORTANT SAFETY WARNINGS
WARNING
Read entire Safety Notes section regarding potential hazard and proper instructions before using this meter. In this manual
the word “WARNING” is used to indicate conditions or actions that may pose physical hazards to the user. The word
“CAUTION” is used to indicate conditions or actions that may damage this instrument.
WARNING
To ensure safe operation and service of the tester, follow these instructions. Failure to observe these warnings can result in
severe injury or death.
WARNING
• Before each use, verify meter operation by measuring a known voltage.
• Never use the meter on a circuit with voltages that exceed the category based rating of this meter.
• Do not use this meter during electrical storms or in wet weather.
• Do not use the meter or test leads if they appear damaged.
• Ensure meter leads are fully seated and keep fingers away from the metal probe contact when making measurements.
Always grip the leads behind the finger guards molded into the probe.
• Do not open the meter to replace batteries while the probes are connected.
• To avoid false readings that can lead to electrical shock, replace batteries if a low battery indicator appears.
• Unless measuring voltage, shut off and lockout power before measuring resistance.
• Always adhere to national and local safety codes. Use proper personal protective equipment (PPE) to prevent shock and
arc blast injury where hazardous live conductors are exposed.
• Always turn off power to a circuit or assembly under test before cutting, unsoldering or breaking the current path. Even
small amounts of current can be dangerous.
• Always disconnect the live test lead before disconnecting the common test lead from the circuit.
• In the event of electrical shock, ALWAYS bring the victim to the emergency room for evaluation, regardless of victim’s
apparent recovery. Electrical shock can cause unstable heart rhythms that may need medical attention.
• If any of the following occur during testing, turn off the power source to the circuit being tested: arching, flame, smoke,
extreme heat, smell of burning materials or discoloration or melting of components.
WARNING
Higher voltages require greater awareness of physical safety hazards. Before connecting the test leads; turn off power to
the circuit under test, set meter to the desired function and range; connect the test leads to the meter first, then connect to
the circuit under test. Reapply power. If an erroneous reading is observed, disconnect power immediately and recheck all
settings and connections.
WARNING
This meter is designed for trade professionals who are familiar with the hazards of their trade. Observe all recommended
safety procedures that include proper lockout utilization and use of personal protective equipment that includes safety
glasses, gloves and flame resistant clothing.
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SYMBOLS
k
RUN TIME
50V
1000V
mV
AC Volts DC Volts
Warning Fuse
Ground Maximum measured value displayed
Low Battery
Minimum measured value displayed
Auto-ranging Hertz/Frequency
Degrees Fahrenheit Degrees Celsius
kΩ KiloOhm Ohms/Resistance
GΩ GigaOhm MΩ MegaOhm
1000V to 50V (Source Voltage)
DC
LOCK TEST
High Voltage SMOOTH
Capacitance Temp Temperature
F
Diode test Continuity
Average value displayed
AVG
AC Voltage with “low-pass filter”
Run Time
Insulation Test
PI/DAR (Polarization Index/Dielectric
Absorption Ratios)
Auto HOLD ZERO ZERO
Greater Than HOLD
30 Segment Bargraph
DCmV
mA (Milliamp) AC/DC
Auto power off active
CATEGORY DEFINITIONS
Measurement
Category
II < 10 Circuits connected to mains socket outlets and similar points in the
III < 50 Mains distributions parts of the building
IV > 50 Source of the mains installation in the building
Short-Circuit (typical)
kA
a
MAINS installation
Location in the
building installation
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OVERVIEW AND OPERATING INSTRUCTIONS
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0 0.1 M 1 M 10 M 100 M 1 G 2 G
B
C
D I
Apo
SELECT
MIN/MAX
E
F
Temp
V
kHz
V
G
OFF
H
A. Worklight: Lights work area in dark work 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.
• Press this button to activate smoothing during insulation testing.
E. Min/Max Button: Press to capture Minimum, Maximum and Average values. Press again to cycle through readings.
Press and Hold to exit.
• Press x1 to capture Maximum value
• Press x2 to capture Minimum value
• Press x3 to capture Average value
• Press repeatedly to scroll through results.
F. Backlight/ Worklight: Press to turn on worklight and backlight.
G. Function Dial: Turns on meter and is used to select the function.
H. 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 and mA.
• Common Test Lead Port:
• Volt/Insulation Test Lead Port: CATIV 600V/CATII 1000V, used for Volts, Resistance, Continuity, Diode, Capacitance,
Temperature and Insulation test
I. A-Hold Button/Lock Button:
• Press x1 for Hold mode.
• Press x2 for A-Hold mode.
• In Insulation or Earth-bond resistance Test mode, when pressed before the Test Button, the test remains active until you
press the lock or test button again to release the lock.
TEST
mV
Test Voltage
RANGE
F C
ZERO
T
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IRT807
PI/DAR
mA
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M
V
LOCK
A-HOLD
Hz
SMOOTH
50V
1000V
INSULATION
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DC
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J. Range/Test Voltage/Temperature Scale Button:
F C
Hz
• Press and hold to return to Auto Ranging mode
• Press to select desired voltage
• Press to select ˚F or ˚C
K. PI/DAR/Hz (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.
• Press for Hz/Frequency measurement in AC Volts mode and AC mA mode.
L. Test Button: Initiate test function
M. Protective Rubber Boot: With molded comfortable grip.
N. Test Lead Holders: For hand-free use and storage of the test probes.
O. Kick Stand: For easy viewing of screen when testing.
P. Battery and Fuse Cover (under protective rubber boot)
Q. Serial Number (under kick stand)
Voltage: <1000V AC
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IRT807
SELECT
SELECT
Apo
MIN/MAX
Temp
V
kHz
V
OFF
TEST
mV
Test Voltage
RANGE
ZERO
V
LOCK
A-HOLD
F C
PI/DAR
Hz
• Default =
mA
SMOOTH
50V
1000V
INSULATION
• Press x1 =
k
WARNING
• Use CATIII rated Test leads or higher.
• Do not attempt to measure more than 1000V AC.
• Keep hands below finger guards when measuring high voltage levels.
Features:
MIN/MAX
Test Voltage
RANGE
SELECT
LOCK
A-HOLD
PI/DAR
AC Volts (45Hz to 5kHz)
RANGE RESOLUTION ACCURACY (45Hz to 400Hz) ACCURACY (400Hz to 5kHz)
400mV 0.1mV
40V 0.01V
±(1.0% +5 dgts)
400V 0.1V
1000V 1V ±(2.0% + 3 dgts)
±(2.0% + 3 dgts) 4V 0.001V
±(2.0% + 3 dgts)
1
1.1kHz bandwidth
Input impedance 10MΩ (nominal), <100pF, AC-coupled
Overload protection AC 1000V rms or DC
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Voltage: with 1kHz “low-pass” filter <1000V
F C
Hz
F C
The IRT807 is equipped with an AC “low-pass” filter. When measuring AC voltage press the Select Button to activate the “low
pass” filter function. The meter continues to measure in the selected AC mode, but the signal passes through the filter that blocks any
unwanted frequencies above 1kHz. The “low-pass” filter can improve measurement performance on composite sine waves that are
typically generated by frequency motor drives and inverters.
WARNING
• Use CATIII rated Test leads or higher.
• Do not attempt to measure more than 1000V AC.
• Keep hands below finger guards when measuring high voltage levels.
Features:
MIN/MAX
Test Voltage
RANGE
SELECT
LOCK
A-HOLD
PI/DAR
Voltage: <1000V DC
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IRT807
IRT807
V
TEST
mV
Test Voltage
RANGE
ZERO
V
LOCK
A-HOLD
F C
PI/DAR
Hz
mA
SMOOTH
50V
1000V
INSULATION
SELECT
Apo
Apo
MIN/MAX
Temp
V
kHz
V
OFF
WARNING
• Use CATIII rated Test leads or higher.
• Do not attempt to measure more than 1000V DC.
• Keep hands below finger guards when measuring high voltage levels.
Features:
DC Volts
RANGE RESOLUTION ACCURACY
4V 0.001V
400V 0.1V
1000V 1V ±(0.3% +6 dgts)
Accuracies apply to 100% of range
Input impedance 10MΩ (nominal), <100pF
Overload protection AC 1000V rms or DC
MIN/MAX
Test Voltage
RANGE
LOCK
A-HOLD
±(0.2% +3 dgts) 40V 0.01V
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F C
DC mV: 1mV to 400mV
Temp
F C
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IRT807
IRT807
0 0.1 M 1 M 10 M 100 M 1 G 2 G
MIN/MAX
Temp
V
TEST
mV
Test Voltage
RANGE
F C
ZERO
PI/DAR
mA
M
A-HOLD
SMOOTH
mV
V
DC
LOCK
Hz
50V
1000V
INSULATION
SELECT
• Default =
mV
mV
SELECT
Apo
Apo
kHz
V
OFF
• Press x1 =
mV
WARNING
• Use CATIII rated Test leads or higher.
• Do not attempt to measure more than 400mV DC.
• Keep hands below finger guards when measuring high voltage levels.
Features:
MIN/MAX
Test Voltage
RANGE
LOCK
A-HOLD
SELECT
DC MILLIVOLTS
RANGE RESOLUTION ACCURACY
400mV DC 0.1mV ±(0.2% + 3 dgts)
Temperature: -328˚ to 2462˚F (-200˚ to 1350˚C)
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IRT807
IRT807
Features:
MIN/MAX
Test Voltage
RANGE
Temp
LOCK
A-HOLD
SELECT
0 0.1 M 1 M 10 M 100 M 1 G 2 G
Apo
Apo
SELECT
kHz
V
OFF
MIN/MAX
Temp
V
TEST
mV
Test Voltage
RANGE
ZERO
F
M
V
DC
LOCK
A-HOLD
F C
PI/DAR
Hz
mA
SMOOTH
50V
1000V
INSULATION
SELECT
• Default =
• Press x1 =
mV
Temp
Fahrenheit is the default temperature measurement scale. Press the Range Button to switch to Celsius scale.
TEMPERATURE
RANGE RESOLUTION ACCURACY
1
-328˚ to 999˚F (-200˚ to 999˚C) 0.1˚F (0.1˚C) ±(1.5% +3.6˚F (1.5% +2˚C))
1000˚ to 2642˚F (1000˚ to 1350˚C) 1˚F (1˚C) ±(1.5% +3˚F (1.5% +2˚C))
1 Accuracies apply following 90 minutes setting time after a change in the ambient temperature of the instrument
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Resistance
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IRT807
IRT807
0 0.1 M 1 M 10 M 100 M 1 G 2 G
Apo
SELECT
SELECT
Apo
kHz
V
OFF
V
MIN/MAX
Temp
TEST
mV
Test Voltage
RANGE
ZERO
M
V
DC
LOCK
A-HOLD
F C
PI/DAR
Hz
mA
SMOOTH
50V
1000V
INSULATION
WARNING
• Do not measure resistance on a live circuit.
Features:
SELECT
LOCK
A-HOLD
MIN/MAX
Test Voltage
RANGE
OHMS
RANGE RESOLUTION ACCURACY
400Ω 0.1Ω
±(0.3% +5 dgts)4kΩ 0.001kΩ
40kΩ 0.01kΩ
400kΩ 0.1kΩ
4MΩ 0.001MΩ
±(0.7% +5 dgts)
40MΩ 0.01MΩ ±(1.2% +10 dgts)
1. Accuracies apply from 0 to 100% of range
Overload protection AC 600V rms or DC
Short circuit current <1.0mA
Continuity
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IRT807
IRT807
0 0.1 M 1 M 10 M 100 M 1 G 2 G
Apo
M
SELECT
Apo
SELECT
OFF
V
DC
LOCKHzTest Voltage
MIN/MAX
RANGE
A-HOLD
F C
PI/DAR
TEST
ZERO
Temp
mV
V
kHz
mA
V
SMOOTH
50V
1000V
INSULATION
• Default =
• Press x1 =
• Press x2 =
• Press x3 =
• Default =
• Press x1 =
• Press x2 =
• Press x3 =
WARNING
• Do not measure resistance on a live circuit.
• Beeper sounds constant as long as circuit is complete.
• Beeper sounds when a short (<40Ω) is detected.
Features:
SELECT
LOCK
A-HOLD
MIN/MAX
RANGE RESOLUTION ACCURACY OVERLOAD PROTECTION
400.0Ω 0.1Ω Approx. 40Ω 600V
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SELECT
F C
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0 0.1 M 1 M 10 M 100 M 1 G 2 G
Apo
Apo
MIN/MAX
RANGE
SELECT
TEST
Temp
mV
V
kHz
V
OFF
Diode Test
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IRT807
IRT807
V
M
V
DC
LOCKHzTest Voltage
A-HOLD
F C
PI/DAR
ZERO
mA
SMOOTH
50V
1000V
INSULATION
• Default =
• Press x1 =
• Press x2 =
• Press x3 =
Features:
SELECT
LOCK
A-HOLD
MIN/MAX
RANGE RESOLUTION ACCURACY OVERLOAD PROTECTION
3V 0.001V ±(2% +1 dgts) 600V
CAUTION
Discharge all high-voltage capacitors before testing diodes. Large value capacitors should be discharged through an
appropriate resistance load.
Capacitance
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SELECT
Features:
SELECT
I
0 0.1 M 1 M 10 M 100 M 1 G 2 G
Apo
Apo
Test Voltage
MIN/MAX
SELECT
TEST
Temp
mV
V
kHz
V
OFF
LOCK
A-HOLD
IRT807
IRT807
F
M
V
DC
LOCK
RANGE
A-HOLD
F C
PI/DAR
Hz
ZERO
mA
SMOOTH
50V
1000V
INSULATION
• Default =
• Press x1 =
• Press x2 =
• Press x3 =
Test Voltage
MIN/MAX
RANGE
WARNING
Capacitors should be completely
discharged prior to testing. Some
electronic devices use capacitors in
circuits that are designed to increase
voltage. By design, a capacitor stores
energy. If a capacitor has been charged
at greater than 600 volts, attempting to
measure it may damage your meter. Larger
capacitors may store enough energy to
cause injury if they are discharged through
the body. Use a conductive device to
dissipate the charge on capacitors. Large
capacitors should be “bled” by using a
resistive load between terminals to slowly
eliminate the charge. Smaller capacitors
may be directly shorted using a metallic
object.
CAPACITANCE
RANGE RESOLUTION ACCURACY OVERLOAD PROTECTION
10.00nF 0.01nF
100.0nF 0.1nF
1.000µF 0.001µF
10.00µF 0.01µF
±(2.5% +5 dgts)
600V
100.00µF 0.1µF
1000µF 1µF
10000µF 1µF
±(3% +5 dgts)
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mA
SELECT
F C
Hz
Hz
F C
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Apo
Apo
MIN/MAX
SELECT
TEST
Temp
mV
V
kHz
V
OFF
mAmps AC/DC
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IRT807
IRT807
m
A
M
V
DC
LOCKHzTest Voltage
RANGE
A-HOLD
F C
PI/DAR
ZERO
mA
SMOOTH
50V
1000V
INSULATION
• Default =
• Press x1 =
mA
WARNING
Never connect the test leads across
(in parallel with) a voltage source
when attempting to measure current.
This can cause damage to the circuit
under test or this meter.
Note: To measure current, you must
create a break in the circuit under test
and make the meter part of the circuit.
Two connection points are created when a
circuit is broken. On one side is the power
source and the other is the load.
Features:
SELECT
MIN/MAX
Test Voltage
RANGE
LOCK
A-HOLD
PI/DAR
AC and DC CURRENT RANGE RESOLUTION ACCURACY
AC (45Hz to 1000Hz)
DC
40mA 0.01mA
400mA 0.1mA
40mA 0.01mA
400mA 0.1mA
±(1.5% +5 dgts)
±(0.5% +5 dgts)
1. 1kHz bandwidth
Overload Protection 440mA, 1000V, FAST fuse
Frequency
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PI/DAR
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0 0.1 M 1 M 10 M 100 M 1 G 2 G
Apo
Apo
MIN/MAX
SELECT
TEST
Temp
mV
V
kHz
V
OFF
IRT807
IRT807
m
A
M
V
DC
LOCKHzTest Voltage
RANGE
A-HOLD
F C
PI/DAR
ZERO
mA
SMOOTH
50V
1000V
INSULATION
• Default =
mA
The meter measures the frequency of
a voltage or current signal by counting
the number of times the signal crosses a
threshold level each second. To measure
Frequency, set selector dial Volt or Milliamp
position. In the mA position, press the
SELECT button to select AC, if needed.
Press the PI/DAR button.
Features:
LOCK
A-HOLD
SELECT
Test Voltage
RANGE
PI/DAR
1
MIN/MAX
RANGE RESOLUTION ACCURACY
99.99Hz 0.01Hz
999.9Hz 0.1Hz
9.999kHz 0.001kHz
±(0.1% +3 dgts)
99.99kHz 0.01kHz
Sensitivity: >AC 1V RMS, >AC 10mA
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Earth-bond Resistance
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IRT807
IRT807
0 0.1 M 1 M 10 M 100 M 1 G 2 G
Apo
Apo
SELECT
SELECT
kHz
V
OFF
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.
V
MIN/MAX
Temp
TEST
mV
Test Voltage
RANGE
ZERO
M
V
DC
LOCK
A-HOLD
F C
PI/DAR
Hz
mA
SMOOTH
50V
1000V
INSULATION
• Default =
• Press x1 =
ZERO
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
20.00Ω 0.01Ω
200.0Ω 0.1Ω
2000Ω 1Ω
±(1.5% +3 dgts)
1
1. Accuracies apply from 0 to 100% of range
2. Open Circuit Test Voltage: > 4.0V, < 8V
3. Short Circuit Current: > 200.0 mA
20.00kΩ 0.01kΩ
15
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F C
SELECT
Insulation Resistance/ 1000V/ 500V/ 250V/ 100V/ 50V
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0 0.1 M 1 M 10 M 100 M 1 G 2 G
Apo
Test Voltage
MIN/MAX
RANGE
SELECT
TEST
ZERO
Temp
mV
V
kHz
V
OFF
M
V
DC
LOCK
A-HOLD
F C
PI/DAR
Hz
mA
SMOOTH
50V
1000V
INSULATION
SMOOTH
50V
1000V
INSULATION
• Default = 1000V DC
• Press x1 =
Features:
TEST
LOCK
A-HOLD
Test Voltage
RANGE
PI/DAR
Hz
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:
To avoid the risk of electrical shock and instrument damage, input voltages must not exceed the limits specified for the
installation category you are working in. DO NOT attempt to take any unknown voltage measurements that may exceed
these values.
Note: When taking voltage measurements your meter must be connected in parallel to the circuit, or circuit element, under test.
• Set Rotary dial to INSULATION and press
RANGE button
to select desired voltage.
• The display will show “----” until the button is pressed.
• The High Voltage Symbol will display if greater than 30V AC or DC is present.
• Press and hold the
• Keep test leads on test points after
TEST button
on the Meter or Remote Probe to start the test. Test stops when the
TEST button
is released. The circuit under test will then discharge.
TEST button
is released.
OUTPUT VOLTAGE DISPLAY RANGE RESOLUTION TEST CURRENT ACCURACY
50V (0% to +20%)
0.01 to 6.00MΩ 0.01MΩ
6.0 to 50.0MΩ 0.1MΩ
1mA @ 50kΩ ±(3% +5dgts)
0.01 to 6.00MΩ 0.01MΩ
100V (0% to +20%)
1mA @ 100kΩ ±(3% +5dgts)6.0 to 60.0MΩ 0.1MΩ
60 to 100MΩ 1MΩ
250V (0% to +20%)
500V (0% to +20%)
1000V (0% to +20%)
0.1 to 60.0MΩ 0.1MΩ
60 to 250MΩ 1MΩ
0.1 to 60.0MΩ 0.1MΩ
60 to 500MΩ 1MΩ
0.1 to 60.0MΩ 0.1MΩ
60 to 600MΩ 1MΩ
1mA @ 250kΩ ±(1.5% +5dgts)
1mA @ 500kΩ ±(1.5% +5dgts)
1mA @ 1MΩ
±(1.5% +5dgts)
0.6 to 2.0GΩ 0.1GΩ ±(10% + 3dgts)
1. Measurement Range: 0.01MΩ to 2GΩ
2. Test Voltages: 50, 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
16
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4mm
Measuring Polarization Index and Dielectric Absorption Ratios
F C
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50V
1000V
INSULATION
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IRT807
Apo
LOCKHzTest Voltage
MIN/MAX
RANGE
SELECT
A-HOLD
F C
PI/DAR
TEST
ZERO
Temp
mV
V
kHz
mA
V
SMOOTH
OFF
50V
1000V
PI/DAR
• Default =
• Press x1 =
TEST
INSULATION
• Default =
• The High Voltage symbol warns if voltage of greater than 30V AC or DC is present. If High voltage is present, test is inhibited.
• Press and release the TEST button on the Meter or the Remote Probe to start the test. During testing, the display shows the
test voltage applied to the circuit under test. The high voltage symbol along with display showing resistance in MΩ or GΩ, the
TEST icon appears on the lower portion of the display until the test is finished.
• To interrupt PI or DAR test before it is completed, press TEST button. When you release the TEST button, the circuit under
test will automatically be discharged through the tester.
Polarization Index (PI) is the ratio of the 10-minute insulation
resistance. Dielectric Absorption Ratio is the ratio of the
1-minute insulation resistance to the 30-second insulation
resistance.
WARNING
• Insulation tests should only be performed on
de-energized circuits.
To measure polarization index or dielectric absorption ration;
• Use insulation and COM Input ports.
NOTE: Because of the time required to perform the PI and DAR
tests, use of alligator clips is recommended.
• Set rotary function dial to INSULATION position and press
RANGE button to select desired voltage.
• Press the PI/DAR button to select PI or DAR.
• The display shows “----” until TEST button
is pressed
and a valid resistance is obtained.
Features:
TEST
LOCK
A-HOLD
Test Voltage
RANGE
PI/DAR
Hz
SELECT
NOTE: Measurements can be adversely affected by impedances of additional operating circuits connected in parallel or transient
currents.
Test Lead Notes
CATIV 600V Measurement Locations
4mm
• Ensure the test lead shield is pressed firmly in place. Failure to use the CAT IV shield increases arc-flash risk.
CAT II Measurement Locations
18mm
• CAT IV shields may be removed for CAT II locations. This will allow testing on recessed conductors such as standard wall outlets.
Take care not to lose the shields.
WARNING: Test Lead category protections apply only to test leads and should not be confused with the meter’s specific
CAT rating. Observe the maximum category protection indicated on the meter the test leads are plugged into.
17
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TEST
Testing the Fuse
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SELECT
kHz
OFF
V
LOCKHzTest Voltage
MIN/MAX
RANGE
A-HOLD
F C
PI/DAR
TEST
ZERO
Temp
mV
V
mA
V
SMOOTH
50V
1000V
INSULATION
• Turn the rotary selector dial to ZERO/Ω position.
• Press and hold the TEST button. If the display
shows “FUSE”, the fuse is bad and should be
replaced. Please see Fuse Replacement section
of this manual.
WARNING:
• To avoid electrical shock or injury, remove the
test leads and any input signals/voltages before
replacing the fuse.
Battery Replacement
• When the batteries
are too low for safe operation,
the Low Battery indicator will
AA battery
AA battery
AA battery
AA battery
display
• Remove protective rubber
boot.
• Remove battery cover.
• Replace the batteries (4 AA).
• Replace the battery cover
• Replace the protective rubber
boot.
Removed protective
rubber boot.
Fuse Replacement
Removed protective
rubber boot.
Fuse
Removed battery
cover.
AA battery
AA battery
AA battery
AA battery
Fuse
Removed battery
cover.
18
• Remove protective rubber boot.
• Remove battery cover.
• Replace the fuse (F 440mA
1000V 1R 10kA).
• Replace the battery cover.
• Replace the protective rubber
boot.
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DISPOSAL
CAUTION: This symbol indicates that equipment and its accessories shall be subject to separate collection and correct
disposal.
CLEANING
Periodically clean your meter’s case using a damp cloth. DO NOT use abrasive, flammable liquids, cleaning solvents, or strong detergents
as they may damage the finish, impair safety, or affect the reliability of the structural components.
STORAGE
Remove the batteries when instrument is not in use for a prolonged period of time. Do not expose to high temperatures or humidity.
After a period of storage in extreme conditions exceeding the limits mentioned in the General Specifications section, allow the
instrument to return to normal operating conditions before using it.
WARRANTY
The IRT807 is warranted to be free from defects in materials and workmanship for a period of 1 year from the date of
purchase. If within the warranty period your instrument should become inoperative from such defects, the unit will be
repaired or replaced at UEi’s option. This warranty covers normal use and does not cover damage which occurs in shipment
or failure which results from alteration, tampering, accident, misuse, abuse, neglect or improper maintenance. Batteries
and consequential damage resulting from failed batteries are not covered by warranty.
Any implied warranties, including but not limited to implied warranties of merchantability and fitness for a particular
purpose, are limited to the express warranty. UEi shall not be liable for loss of use of the instrument or other incidental or
consequential damages, expenses, or economic loss, or for any claim or claims for such damage, expenses or economic
loss.
A purchase receipt or other proof of original purchase date will be required before warranty repairs will be rendered.
Instruments out of warranty will be repaired (when repairable) for a service charge.
This warranty gives you specific legal rights. You may also have other rights, which vary from state to state.
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