UEi Test Instruments IRT803 User manual

IRT803

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 20 G

Apo

SELECT

PI/DAR

COMPARE

TEST

1000V

COM

OFF

ZERO

V

ZERO

Ω

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IRT803

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LOCK

HOLD

500V

250V

100 V

V

INSULATION

DC

600V

CAT IV 600V
CAT III 1000V

FUSED

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TABLE OF CONTENTS

FEATURES

GENERAL SPECIFICATIONS

IMPORTANT SAFETY WARNINGS

SYMBOLS

CATEGORY DEFINITIONS

OVERVIEW

OPERATING INSTRUCTIONS

Voltage <600V AC/DC .................................................................................................................7

Earth-Bond Resistance <20kΩ ..................................................................................................... 8

Continuity .................................................................................................................................... 9

Insulation Resistance/1000V/ 500V/ 250V/ 100V .................................................................... 10

Polarization Index & Dielectric Absorption Ratio (1000V, 500V, 250V, 100V) ........................... 11

Compare Function ..................................................................................................................... 12

Test Lead Notes ........................................................................................................................12

Testing the Fuse ........................................................................................................................13

Testing the Batteries .................................................................................................................13

Battery Replacement .................................................................................................................14

Fuse Replacement ..................................................................................................................... 14

DISPOSAL ...................................................................................................................................16

CLEANING

STORAGE

WARRANTY

..................................................................................................................................................3

...................................................................................................................3

.......................................................................................................4

..................................................................................................................................................5

.......................................................................................................................5

.......................................................................................................................................... 6 - 7

................................................................................................................................... 16

................................................................................................................................... 16

................................................................................................................................. 16

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FEATURES

• Insulation Resistance 20.0GΩ

• 600V AC/DC

• Earth-bond Resistance 20.00kΩ

• Continuity

• PI/ DAR test

• Hold

• Test lead holders in boot

• Zero reading

• Lock reading

• Compare reading

• Rotary dial selector

• Protective rubber boot

• Kick stand

• Test lead holder

• 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: 6,562 ft (2000m)

• Pollution Degree: 2

• Backlight: Yes

• Refresh Rate: 3/sec

• Over-range: “OFL” is displayed.

• Dimensions: 8.27” x 3.52” x 2.17”

• Item Weight: 1.283 lbs.

• Calibration: Recommended annually

• CAT Rating: CATIV 600V/CATIII 1000V

• Certifications: cETLus 3rd edition, CE Conformity, CATIV 600V, CATIII 1000V, IP42, RoHS,

6’ Drop Protection, IEC/EN 61010-1: 2010

• 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 segments

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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

COMPARE

RUN TIME

G

DC (Direct current) AC (Alternating Current)

Auto Power Off Active Negative DC

Low Battery High Voltage

Voltage

Ohms/Resistance Pass

Warning or Caution Test

Fuse

Kilo Hold

Mega Lock

Giga Greater Than

PI/DAR

ZERO 30 Segment Bargraph

Ground

Compare

Run Time

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

Location in the

building installation

MAINS installation

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OVERVIEW AND OPERATING INSTRUCTIONS

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IRT803

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COMPARE

500V

HOLD

250V

LOCK

100V

V

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Apo

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SELECT

E
F

G

PI/DAR

TEST

1000V

ZERO

V

OFF

H

COM

INSULATION

CAT IV 600V
CAT III 1000V

V

I

ZERO

Ω

FUSED

600V

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

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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 <600V AC/DC

If the meter detects higher than AC or DC 1.5V, the meter will automatically choose AC or DC.

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IRT803

SELECT

SELECT

OFF

Apo

PI/DAR

ZERO

V

ZERO

Ω

FUSED

V

COMPARE

LOCK

HOLD

TEST

1000V

500V

250V

100V

V

INSULATION

COM

CAT IV 600V
CAT III 1000V

600V

WARNING

• Use CATIII rated Test leads or higher.

• Do not attempt to measure more than 1000V AC/DC.

• Keep hands below finger guards when measuring high voltage levels.

Features:

SELECT

HOLD

RANGE RESOLUTION ACCURACY

600V 0.1V ±(2% +3 dgts)

1. Bandwidth 45HZ to 400Hz

2. Input Impedance: 10MΩ (nominal), < 100pF

3. Overload Protection: AC 1000V rms or DC.

• Default =

• Press x1 =

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Earth-Bond Resistance <20kΩ

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IRT803

IRT 803

TEST

COMPARE

1000V

V

LOCK

HOLD

500V

250V

100V

SELECT

TEST

SELECT

Apo

Apo

PI/DAR

ZERO

V

OFF

• Default =

ZERO

V

Ω

INSULATION

COM

CAT IV 600V

FUSED

CAT III 1000V

600V

• Press x1 =

• Short the ends of the test leads together, press the SELECT button and wait until ZERO appears. The meter measures the
test leads resistance, stores the data/results in memory and subtracts it from the reading. The test lead resistance is saved
even after the meter is powered off.

• The display will show “----” until a valid resistance reading is detected.

• The High Voltage symbol will display if greater than 2V AC or DC is present. If the meter “chirps”when you press the
TEST button, test is corrupted due to voltage being present.

• Press and hold the TEST button on the Meter or Remote Probe to start test. Test stops when the button is released.

Features:

TEST

SELECT

LOCK

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)

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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Continuity

HOLD

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IRT803

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TEST

1000V

COMPARE

V

LOCK

HOLD

500V

250V

100V

SELECT

OFF

Apo

Apo

PI/DAR

ZERO

V

• Default =

ZERO

V

Ω

INSULATION

COM

CAT IV 600V

FUSED

CAT III 1000V

600V

Features:

WARNING

• Do not measure resistance/continuity on a live circuit.

• Beeper sounds constant as long as circuit is complete.

• Beeper sounds when a short (<40Ω) is detected.

RANGE RESOLUTION AUDIBLE THRESHOLD

400.0Ω 0.1Ω Approx. 40Ω

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OFF

Insulation Resistance/1000V/ 500V/ 250V/ 100V

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COMPARE

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0 0.1 M 1 M 10 M 100 M 1 G 20 G

Apo

Apo

SELECT

PI/DAR

TEST

ZERO

V

OFF

ZERO

Ω

COM

FUSED

600V

TEST

COMPARE

1000V

CAT IV 600V
CAT III 1000V

IRT803

IRT803

500V

INSULATION

V

M

V

DC

LOCK

HOLD

250V

100V

V

TEST

• Default =

1000V

ZERO

500V

V

OFF

ZERO

V

OFF

ZERO

V

250V

100V

1000V

500V

250V

100V

1000V

500V

250V

100V

• The display will show “----” until test button is pressed.

• 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

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%)

250V (0% to +20%)

0.01 to 20.00MΩ 0.01MΩ

20.0 to 100.0MΩ 0.1MΩ

0.01 to 20.00MΩ 0.01MΩ

20.0 to 200.0MΩ 0.1MΩ

1mA @ 100kΩ ±(3% +5dgts)

1mA @ 250kΩ ±(1.5% +5dgts)

0.01 to 20.00MΩ 0.01MΩ

500V (0% to +20%)

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

20 to 2000MΩ 1MΩ

1mA @ 1MΩ

±(1.5% +5dgts)

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

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Polarization Index & Dielectric Absorption Ratios (1000V, 500V, 250V, 100V)

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1000V

ZERO

500V

V

OFF

ZERO

V

OFF

ZERO

V

OFF

250V

100V

1000V

500V

250V

100V

1000V

500V

250V

100V

I

0 0.1 M 1 M 10 M 100 M 1 G 20 G

Apo

SELECT

PI/DAR

TEST

1000V

ZERO

V

OFF

ZERO

Ω

COM

FUSED

600V

IRT803

RUN TIME :

COMPARE

CAT IV 600V

CAT III 1000V

IRT803

500V

INSULATION

PI/DAR

V

G

V

DC

m s

LOCK

HOLD

250V

100V

V

• Press X1 =

• Press X2 =

TEST

• Default =

Features:

LOCK

PI/DAR

TEST

• Because of the time required for the PI and DAR tests, alligator clips are recommended.

• Use rotary selector dial to select desired test voltage.

• The display will show “----” until test starts.

• The High Voltage symbol will display if greater than 30V AC or DC is present.

• Press and release the Test Button on the Meter or Remote Probe to start the 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

NEVER measure resistance on a live circuit.

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Compare Function

4mm

Use the Compare Function to set “Pass/Fail” compare levels for insulation measurements.

Press the Compare Button to select the desired compare value. Choose from the following values:

• 100kΩ

• 200kΩ

• 500kΩ

• 1MΩ

• 2MΩ

• 5MΩ

• 10MΩ

• 20MΩ

• 50MΩ

• 100MΩ

• 200MΩ

• 500MΩ

Perform Insulation tests as described in this manual. The PASS symbol will appear on display if the measured value is greater
than the selected value.

Press and hold the Compare button to stop/disable the Compare function.

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.

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Testing the Fuse

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600V

TEST

COM

COMPARE

1000V

CAT IV 600V

CAT III 1000V

500V

INSULATION

V

TEST

LOCK

HOLD

250V

100V

V

WARNING:

Apo

SELECT

PI/DAR

ZERO

V

OFF

ZERO

Ω

FUSED

To avoid electrical shock or injury, remove the test leads and any input signals/voltages before replacing the fuse.

• 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.

Testing the Batteries

The meter continuously monitors battery voltage. If the Low Battery indicator is displayed, replace the batteries.

To manually test the batteries:

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IRT803

SELECT

OFF

Apo

PI/DAR

ZERO

V

ZERO

Ω

FUSED

V

COMPARE

LOCK

HOLD

TEST

1000V

500V

250V

100V

V

INSULATION

COM

CAT IV 600V
CAT III 1000V

600V

SELECT

• Turn the rotary selector dial to the Battery/Voltage position, with no test leads connected.

• Press the Select button to start the battery test. The battery voltage is displayed for 5 seconds.Then the voltage function is

displayed again.

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Battery Replacement

Fuse

AA battery

AA battery

AA battery

AA battery

Fuse

AA battery

AA battery

AA battery

AA battery

• When the batteries
are too low for safe
operation, the Low Battery
indicator will 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.

Removed protective

rubber boot.

Removed battery

cover.

Fuse Replacement

• Remove protective rubber
boot.

• Remove battery cover.

• Replace the fuse (F 440mA
1000V 1R 10kA).

• Replace the battery cover.

• Replace the protective rubber
boot.

Removed battery

cover.

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14

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 IRT803 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.

For more information on warranty and service, contact:

This warranty gives you specific legal rights. You may also have other rights, which vary from state to state.

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