Omega HHM-EX505, HHM-EX500 User guide

User’s Guide

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®

HHM-EX505

Autoranging True RMS Multimeter

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omega.com [email protected]

Servicing North America:

U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047

ISO 9001 Certified

Stamford, CT 06907-0047
Toll-Free: 1-800-826-6342 Tel: [phone]
FAX: [phone] e-mail: [email protected]

Canada: 976 Bergar

Laval (Quebec), H7L 5A1 Canada
Toll-Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [email protected]

For immediate technical or application assistance:

U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA

Customer Service: 1-800-622-2378/1-800-622-BEST
Engineering Service: 1-800-872-9436/1-800-USA-WHEN

Mexico En Español: 001 [phone] FAX: [phone]
Latin America [email protected] e-mail: [email protected]

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Servicing Europe:

Benelux: Managed by the United Kingdom Office

Czech Republic: Frystatska 184

France: Managed by the United Kingdom Office

Germany/ Austria: Daimlerstrasse 26

United Kingdom: OMEGA Engineering Ltd.

ISO 9001 Certified

Toll-Free: 0800 099 3344 TEL: [phone]
FAX: [phone] e-mail: [email protected]

733 01 Karviná, Czech Republic
Toll-Free: 0800-1-66342 TEL: [phone]
FAX: [phone] e-mail: [email protected]

Toll-Free: 0800 466 342 TEL: [phone]
FAX: [phone] e-mail: [email protected]

D-75392 Deckenpfronn, Germany
Toll-Free: 0800 6397678 TEL: [phone]
FAX: [phone] e-mail: [email protected]

One Omega Drive, River Bend Technology Centre, Northbank
Irlam, Manchester M44 5BD United Kingdom
Toll-Free: 0800-488-488 TEL: [phone]
FAX: [phone] e-mail: [email protected]

It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI
regulations that apply. OMEGA is constantly pursuing certification of its products to the European New
Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

User's Guide

Autoranging True RMS Multimeter

Extech EX505

Introduction

Congratulations on your purchase of the Extech EX505 True RMS Autoranging Multimeter. This meter
measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Diode Test, and
Continuity plus Thermocouple Temperature. It features a waterproof, rugged design for heavy duty use
This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable
service.

Safety

This symbol adjacent to another symbol, terminal or operating device indicates
that the operator must refer to an explanation in the Operating Instructions to
avoid personal injury or damage to the meter.

WARNING

CAUTION

MAX
1000V

PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY

OVERVOLTAGE CATEGORY I

Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in which
measures are taken to limit the transient overvoltages to an appropriate low level.

Note – Examples include protected electronic circuits.

OVERVOLTAGE CATEGORY II

Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied from
the fixed installation.

Note – Examples include household, office, and laboratory appliances.

OVERVOLTAGE CATEGORY III

Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations.
Note – Examples include switches in the fixed installation and some equipment for industrial use with
permanent connection to the fixed installation.

OVERVOLTAGE CATEGORY IV

Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the installation.
Note – Examples include electricity meters and primary over-current protection equipment

This WARNING symbol indicates a potentially hazardous situation, which if not
avoided, could result in death or serious injury.

This CAUTION symbol indicates a potentially hazardous situation, which if not
avoided, may result damage to the product.

This symbol advises the user that the terminal(s) so marked must not be
connected to a circuit point at which the voltage with respect to earth ground
exceeds (in this case) 1000 VAC or VDC.

This symbol adjacent to one or more terminals identifies them as being associated
with ranges that may, in normal use, be subjected to particularly hazardous
voltages. For maximum safety, the meter and its test leads should not be handled
when these terminals are energized.

This symbol indicates that a device is protected throughout by double insulation or
reinforced insulation.

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CAUTIONS

• Improper use of this meter can cause damage, shock, injury or death. Read and understand
this user manual before operating the meter.

• Always remove the test leads before replacing the battery or fuses.

• Inspect the condition of the test leads and the meter itself for any damage before operating the

meter. Repair or replace any damage before use.

• Use great care when making measurements if the voltages are greater than 25VAC rms or
35VDC. These voltages are considered a shock hazard.

• Warning! This is a class A equipment. This equipment can cause interferences in the living
quarters; in this case the operator can be required to carry out adequate measures.

• Always discharge capacitors and remove power from the device under test before performing
Diode, Resistance or Continuity tests.

• Voltage checks on electrical outlets can be difficult and misleading because of the uncertainty
of connection to the recessed electrical contacts. Other means should be used to ensure that
the terminals are not "live".

• If the equipment is used in a manner not specified by the manufacturer, the protection provided
by the equipment may be impaired.

• This device is not a toy and must not reach children’s hands. It contains hazardous objects as
well as small parts that the children could swallow. In case a child swallows any of them,
please contact a physician immediately

• Do not leave batteries and packing material lying around unattended; they can be dangerous
for children if they use them as toys

• In case the device is going to be unused for an extended period of time, remove the batteries
to prevent them from training

• Expired or damaged batteries can cause cauterization on contact with the skin. Always,
therefore, use suitable hand gloves in such cases

• See that the batteries are not short-circuited. Do not throw batteries into the fire.

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SAFETY INSTRUCTIONS

This meter has been designed for safe use, but must be operated with caution. The rules listed below
must be carefully followed for safe operation.

1. NEVER apply voltage or current to the meter that exceeds the specified maximum:

Input Protection Limits

Function Maximum Input

V DC or V AC 1000VDC/AC rms

mA AC/DC 400mA AC/DC

A AC/DC 10A AC/DC (20A for 30 sec)

Frequency, Resistance, Capacitance,
Diode Test, Continuity, Temperature

2. USE EXTREME CAUTION when working with high voltages.

3. DO NOT measure voltage if the voltage on the "COM" input jack exceeds 600V above earth
ground.

4. NEVER connect the meter leads across a voltage source while the function switch is in the
current, resistance, or diode mode. Doing so can damage the meter.

5. ALWAYS discharge filter capacitors in power supplies and disconnect the power when making
resistance or diode tests.

6. ALWAYS turn off the power and disconnect the test leads before opening the covers to replace
the fuse or batteries.

7. NEVER operate the meter unless the back cover and the battery and fuse covers are in place
and fastened securely.

8. If the equipment is used in a manner not specified by the manufacturer, the protection provided
by the equipment may be impaired.

600VDC/AC rms

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Controls and Jacks

1. 4,000 count LCD display

2. RANGE button

3. Hz and % button

4. Mode button

5. Function switch

6. mA, µA and 10A input jacks

7. COM input jack

8. Positive input jack

9. Backlight button

10. REL button

11. HOLD button

Note: Tilt stand and battery compartment are on rear of unit.

Symbols and Annunciators

•))) Continuity

Diode test

Battery status
n nano (10
µ micro (10
m milli (10
A Amps
k kilo (10
F Farads (capacitance)
M mega (10
Ω Ohms
Hz Hertz (frequency) V Volts
% Percent (duty ratio) REL Relative
AC Alternating current Auto Autoranging
DC Direct current HOLD Display hold
ºF Degrees Fahrenheit ºC Degrees Centigrade

-9

) (capacitance)

-6

) (amps)

-3

) (volts, amps)

3

) (ohms)

6

) (ohms)

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Operating Instructions

WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are very dangerous and
should be measured with great care.

1. ALWAYS turn the function switch to the OFF position when the meter is not in use.

2. If “OL” appears in the display during a measurement, the value exceeds the range you have
selected. Change to a higher range.

DC VOLTAGE MEASUREMENTS

CAUTION: Do not measure DC voltages if a motor on the circuit is being switched ON or OFF.

Large voltage surges may occur that can damage the meter.

1. Set the function switch to the V position.

2. Press the MODE button to select DC (if necessary).

3. Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive V jack.

4. Touch the black test probe tip to the negative side of the circuit.
Touch the red test probe tip to the positive side of the circuit.

5. Read the voltage in the display.

AC VOLTAGE (FREQUENCY, DUTY CYCLE) MEASUREMENTS

WARNING: Risk of Electrocution. The probe tips may not be long enough to contact the live parts

inside some 240V outlets for appliances because the contacts are recessed deep in the outlets. As
a result, the reading may show 0 volts when the outlet actually has voltage on it. Make sure the
probe tips are touching the metal contacts inside the outlet before assuming that no voltage is
present.

CAUTION: Do not measure AC voltages if a motor on the circuit is being switched ON or OFF.
Large voltage surges may occur that can damage the meter.

1. Set the function switch to the V position.

2. Press the MODE button to select AC (if necessary)

3. Insert the black test lead banana plug into the negative COM jack.
Insert red test lead banana plug into the positive V jack.

4. Touch the black test probe tip to the neutral side of the circuit.
Touch the red test probe tip to the “hot” side of the circuit.

5. Read the voltage in the display.

6. Press the HZ/% button to indicate “Hz”.

7. Read the frequency in the display.

8. Press the Hz/% button again to indicate “%”.

9. Read the % of duty cycle in the display.

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DC CURRENT MEASUREMENTS

CAUTION: Do not make 20A current measurements for longer than 30 seconds. Exceeding 30

seconds may cause damage to the meter and/or the test leads.

1. Insert the black test lead banana plug into the negative COM jack.

2. For current measurements up to 4000µA DC, set the function switch to the
µA position and insert the red test lead banana plug into the µA/mA jack.

3. For current measurements up to 400mA DC, set the function switch to the
mA position and insert the red test lead banana plug into the µA/mA jack.

4. For current measurements up to 10A DC, set the function switch to the 10A
position and insert the red test lead banana plug into the 10A jack.

5. Press the MODE button to indicate “DC” on the display.

6. Remove power from the circuit under test, then open up the circuit at the
point where you wish to measure current.

7. Touch the black test probe tip to the negative side of the circuit.
Touch the red test probe tip to the positive side of the circuit.

8. Apply power to the circuit.

9. Read the current in the display.

AC CURRENT (FREQUENCY, DUTY CYCLE) MEASUREMENTS

CAUTION: Do not make 20A current measurements for longer than 30 seconds. Exceeding 30

seconds may cause damage to the meter and/or the test leads.

1. Insert the black test lead banana plug into the negative COM jack.

2. For current measurements up to 4000µA AC, set the function switch to the
µA position and insert the red test lead banana plug into the µA/mA jack.

3. For current measurements up to 400mA AC, set the function switch to the
mA position and insert the red test lead banana plug into the µA/mA jack.

4. For current measurements up to 10A AC, set the function switch to the 10A
position and insert the red test lead banana plug into the 10A jack.

5. Press the MODE button to indicate “AC” on the display.

6. Remove power from the circuit under test, then open up the circuit at the
point where you wish to measure current.

7. Touch the black test probe tip to the neutral side of the circuit.
Touch the red test probe tip to the “hot” side of the circuit.

8. Apply power to the circuit.

9. Read the current in the display.

10. Press the Hz/% button to indicate “Hz”.

11. Read the frequency in the display.

12. Press the Hz/% button again to indicate “%”.

13. Read the % duty cycle in the display.

14. Press the Hz/% button to return to current measurement.

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RESISTANCE MEASUREMENTS

WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all

capacitors before taking any resistance measurements. Remove the batteries and unplug the line
cords.

1. Set the function switch to the ΩCAP position.

2. Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive Ω jack.

3. Press the MODE button to indicate “Ω" on the display.

4. Touch the test probe tips across the circuit or part under test. It is best to
disconnect one side of the part under test so the rest of the circuit will not
interfere with the resistance reading.

5. Read the resistance in the display.

CONTINUITY CHECK

WARNING: To avoid electric shock, never measure continuity on circuits or wires that have

voltage on them.

1. Set the function switch to the Ω CAP position.

2. Insert the black lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive Ω jack.

3. Press the MODE button to indicate” "and “Ω” on the display

4. Touch the test probe tips to the circuit or wire you wish to check.

5. If the resistance is less than approximately 100Ω, the audible signal will
sound. If the circuit is open, the display will indicate “OL”.

DIODE TEST

1. Set the function switch to the Ω CAP position.

2. Insert the black test lead banana plug into the negative COM jack and the
red test lead banana plug into the positive V jack.

3. Press the MODE button to indicate and V on the display.

4. Touch the test probes to the diode under test. Forward voltage will typically
indicate 0.400 to 0.700V. Reverse voltage will indicate “OL”. Shorted
devices will indicate near 0V and an open device will indicate “OL” in both
polarities.

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TEMPERATURE MEASUREMENTS

1. Set the function switch to the ºF or ºC position.

2. Insert the Temperature Probe into the input jacks, making sure to
observe the correct polarity.

3. Touch the Temperature Probe head to the part whose temperature
you wish to measure. Keep the probe touching the part under test until
the reading stabilizes (about 30 seconds).

4. Read the temperature in the display.

Note: The temperature probe is fitted with a type K mini connector. A mini

connector to banana connector adaptor is supplied for connection to the
input banana jacks.

CAPACITANCE MEASUREMENTS

WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all

capacitors before taking any capacitance measurements. Remove the batteries and unplug the
line cords.

1. Set the rotary function switch to the Ω CAP position.

2. Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive V jack.

3. Press the MODE button to indicate “nF” on the display.

4. Touch the test leads to the capacitor to be tested.

5. The test may take up to 3 minutes or more for large capacitors to charge.
Wait until the readings settle before ending the test.

6. Read the capacitance value in the display

FREQUENCY/DUTY CYCLE MEASUREMENTS (ELECTRONIC)

1. Set the rotary function switch to the “Hz %” position.

2. Press the Hz/% button to indicate “Hz” in the display.

3. Insert the black lead banana plug into the negative COM jack and the red
test lead banana plug into the positive Hz jack.

4. Touch the test probe tips to the circuit under test.

5. Read the frequency on the display.

6. Press the Hz/% button again to indicate “%” on the display.

7. Read the % of duty cycle on the display.

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FREQUENCY SENSITIVITY (ELECTRICAL)

The frequency sensitivity is range dependent when the function is selected from while in the voltage
or current measuring function. Below are typical sensitivities for the “electrical” measurement modes.

Range
( DC/AC )
4V

1000V/1000V

400mA

10A

Sensitivity Frequency width

≥1.5V rms

≥10V rms

≥20V rms
≥420V rms

≥45mA rms

≥4A rms

5Hz~10kHz

5Hz~20kHz 40V, 400V

5Hz~200kHz
50Hz~1kHz

5Hz~5kHz

5Hz~1kHz

AUTORANGING/MANUAL RANGE SELECTION

When the meter is first turned on, it automatically goes into Autoranging. This automatically selects
the best range for the measurements being made and is generally the best mode for most
measurements. For measurement situations requiring that a range be manually selected, perform
the following:

1. Press the RANGE key. The “Auto” display indicator will turn off.

2. Press the RANGE key to step through the available ranges. Observe the decimal point and
units displayed until the preferred range is located.

3. To exit the Manual Ranging mode and return to Autoranging, press and hold the RANGE key
for 2 seconds.

Note: Manual ranging does not apply for the Capacitance and Frequency functions.

RELATIVE MODE

The relative measurement feature allows you to make measurements relative to a stored zero
reference value. A reference voltage, current, etc. can be stored and measurements made in
comparison to that value. The displayed value is the difference between the reference value and the
measured value.

1. Perform the measurement as described in the operating instructions.

2. Press the REL button to store (zero) the reading in the display and the "REL" indicator will
appear on the display.

3. The display will now indicate the difference between the stored value and the measured value.

4. Press the REL button to exit the relative mode.

Note: The Relative function does not operate in the Frequency function.

DISPLAY BACKLIGHT

Press the backlight

button to turn on. The light will slowly fade to off after approxamately 10 to 15

seconds.

HOLD

The hold function freezes the reading in the display. Press the HOLD key momentarily to activate or
to exit the HOLD function.

AUTO POWER OFF

The auto off feature will turn the meter off after 30 minutes. To disable the auto power off feature,
hold down the MODE button and turn the meter on.

LOW BATTERY INDICATION

icon will appear in the display when the battery voltage becomes low. Replace the battery

The
when this appears.

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Maintenance

WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before
removing the back cover or the battery or fuse covers.

WARNING: To avoid electric shock, do not operate your meter until the battery and fuse covers are
in place and fastened securely.

This MultiMeter is designed to provide years of dependable service, if the following care instructions
are performed:

1. KEEP THE METER DRY. If it gets wet, wipe it off.

2. USE AND STORE THE METER IN NORMAL TEMPERATURES. Temperature extremes can
shorten the life of the electronic parts and distort or melt plastic parts.

3. HANDLE THE METER GENTLY AND CAREFULLY. Dropping it can damage the electronic
parts or the case.

4. KEEP THE METER CLEAN. Wipe the case occasionally with a damp cloth. DO NOT use
chemicals, cleaning solvents, or detergents.

5. USE ONLY FRESH BATTERIES OF THE RECOMMENDED SIZE AND TYPE. Remove old or
weak batteries so they do not leak and damage the unit.

6. IF THE METER IS TO BE STORED FOR A LONG PERIOD OF TIME, the batteries should be
removed to prevent damage to the unit.

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BATTERY INSTALLATION

WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before

removing the battery cover.

1. Turn power off and disconnect the test leads from the meter.

2. Open the rear battery cover by removing two screws (B) using a Phillips head screwdriver.

3. Insert the battery into battery holder, observing the correct polarity.

4. Put the battery cover back in place. Secure with the screws.

5. You, as the end user, are legally bound (EU Battery ordinance) to return all used batteries,
disposal in the household garbage is prohibited! You can hand over your used batteries
/ accumulators at collection points in your community or wherever batteries / accumulators
are sold!

Disposal: Follow the valid legal stipulations in respect of the disposal of the device at the
end of its lifecycle

WARNING: To avoid electric shock, do not operate the meter until the battery cover is in place and
fastened securely.

NOTE: If your meter does not work properly, check the fuses and batteries to make sure that they are

still good and that they are properly inserted.

A

A

B

B

A

F1 F2

REPLACING THE FUSES

WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before

removing the fuse cover.

1. Disconnect the test leads from the meter.

2. Remove the battery cover (two “B” screws) and the battery.

3. Remove the six “A” screws securing the rear cover.

4. Gently remove the old fuse and install the new fuse into the holder.

5. Always use a fuse of the proper size and value (0.5A/1000V fast blow for the 400mA range
[SIBA 70-172-40], 10A/1000V fast blow for the 20A range [SIBA 50-199-06]).

6. Replace and secure the rear cover, battery and battery cover.

WARNING: To avoid electric shock, do not operate your meter until the fuse cover is in place and
fastened securely.

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Specifications

Function Range Resolution Accuracy

DC Voltage

AC Voltage

DC Current

AC Current

NOTE: Accuracy is stated at 18oC to 28oC (65oF to 83oF) and less than 75% RH.

400mV 0.1mV

4V 0.001V

40V 0.01V

400V 0.1V

1000V 1V

400mV 0.1mV

4V 0.001V

40V 0.01V

400V 0.1V

1000V 1V

400μA 0.1μA ±(1.0% reading + 3 digits)

4000μA 1μA

40mA 0.01mA

400mA 0.1mA

10A 0.01A

400μA 0.1μA ±(2.5% reading + 10 digits)

4000μA 1μA

40mA 0.01mA

400mA 0.1mA
10A 0.01A

±(0.5% reading + 2 digits)

±(1.2% reading + 2 digits)

±(1.5% reading + 10 digits)

±(2.0% reading + 10 digits)

±(2.0% reading + 5 digits)

±(2.5% reading + 5 digits)

±(1.5% reading + 3 digits)

±(2.5% reading + 5 digits)

±(2.5% reading + 5 digits)

±(3.0% reading + 7 digits)

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Function Range Resolution Accuracy

Resistance

Capacitance

Frequency

Duty Cycle

Temp
(type-K)

Note: Accuracy specifications consist of two elements:

• (% reading) – This is the accuracy of the measurement circuit.

• (+ digits) – This is the accuracy of the analog to digital converter.

400Ω 0.1Ω ±(1.2% reading + 4 digits)

4kΩ 0.001kΩ ±(1.0% reading + 2 digits)

40kΩ 0.01kΩ

400kΩ 0.1kΩ

4MΩ 0.001MΩ

40MΩ 0.01MΩ ±(2.0% reading + 3 digits)

4nF 0.001nF

40nF 0.01nF

400nF 0.1nF

4μF 0.001μF

40μF 0.01μF

100μF 0.1μF ±(5% reading + 5 digits)

5.999Hz 0.001Hz

59.99Hz 0.01Hz

599.9Hz 0.1Hz

5.999kHz 0.001kHz

59.99kHz 0.01kHz

599.9kHz 0.1kHz

5.999MHz 0.001MHz

9.999mHz 0.001MHz

Sensitivity: 0.5V rms <500kHz; 3V rms >500kHz

0.1 to 99.9% 0.1%

Pulse width: 100µs to 100ms, Frequency: 5Hz to 150kHz

-4 to 1382°F

-20 to 750°C

0.1°<400°
1° ≥ 400°

±(1.2% reading + 2 digits)

±(5.0% reading + 0.5nF)

±(5.0% reading + 7 digits)

±(3.0% reading + 5 digits)

±(1.5% reading + 1 digits)

±(1.2% reading + 3 digits)

±(1.5% reading + 4 digits)

±(1.2% reading + 2 digits)

±(3.0% reading + 5°C /9°F)

(probe accuracy not included)

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Enclosure Double molded, waterproof (IP67)
Shock (Drop Test) 2 meters (6.5 feet)
Diode Test Test current of 0.3mA typical, open circuit voltage 1.5V DC typical
Continuity Check Audible signal will sound if the resistance is less than 100Ω (approx.), test

current <0.3mA

Temperature Sensor Requires type K thermocouple
Input Impedance 7.8MΩ
AC Response True rms
ACV Bandwidth 40Hz to 400Hz
Crest Factor ≤3 at full scale up to 500V, decreasing linearly to ≤1.5 at 1000V
Display 4,000 count backlit liquid crystal
Overrange indication “OL” is displayed
Auto Power Off 30 minutes (approximately)
Polarity Automatic (no indication for positive); Minus (-) sign for negative
Measurement Rate 2 times per second, nominal
Low Battery Indication “ ” is displayed if battery voltage drops below operating voltage
Battery One 9 volt (NEDA 1604) battery
Fuses mA, µA ranges; 0.5A/1000V ceramic fast blow

A range; 10A/1000V ceramic fast blow

Operating Temperature 5°C to 40°C (41°F to 104°F)
Storage Temperature -20°C to 60°C (-4°F to 140°F)
Operating Humidity Max 80% up to 31°C (87°F) decreasing linearly to 50% at 40°C (104°F)
Storage Humidity <80%
Operating Altitude 2000meters (7000ft) maximum.
Weight 342g (0.753lb) (includes holster).
Size 182 x 82 x 55mm (7.2” x 3.2” x 2.2”)
Safety This meter is intended for origin of installation use and protected, against

the users, by double insulation per EN61010-1 and IEC61010-1 2
(2001) to Category IV 600V and Category III 1000V; Pollution Degree 2.
The meter also meets UL 61010-1, 2
61010-1 2

nd

Edition (2004), and UL 61010B-2-031, 1st Edition (2003)

nd

Edition (2004), CAN/CSA C22.2 No.

nd

Edition

Approvals UL CE
UL Listed The UL mark does not indicate that this product has been evaluated for the

accuracy of its readings.

Copyright © 2011 Extech Instruments Corporation (a FLIR company)

All rights reserved including the right of reproduction in whole or in part in any form.

www.extech.com

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EX505-EU-EN-V7.0-12/11

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship
for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1)
month grace period to the normal one (1) year product warranty to cover handling and shipping
time. This ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer
Service Department will issue an Authorized Return (AR) number immediately upon phone or
written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired
or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action
of the purchaser, including but not limited to mishandling, improper interfacing, operation outside
of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit
shows evidence of having been tampered with or shows evidence of having been damaged as a
result of excessive corrosion; or current, heat, moisture or vibration; improper specification;
misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in
which wear is not warranted, include but are not limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability
fo r any dam a ges tha t resul t from the us e of its pr o duct s in acco r danc e wi th
information provided by OMEGA, either verbal or written. OMEGA warrants only that
the parts manufactured by the company will be as specified and free of defects.
OMEG A M AKE S N O OTHER WAR RANTI ES OR REPRE SENTA TIONS OF AN Y K IND
WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED
WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The
remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA
wi th res p ect to th is o r der, wh ethe r base d on cont r act, warra n ty, ne g lig e nce,
indemnification, strict liability or otherwise, shall not exceed the purchase price of the
com ponent upon which liability is based. I n no e vent shall OMEGA be liab le for
consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a
“Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or
(2) in medical applications or used on humans. Should any Product(s) be used in or with any
nuclear installation or activity, medical application, used on humans, or misused in any way,
OMEGA assumes no responsibility as set forth in our basic WARRANTY / DISCLAIMER language,
and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability
or damage whatsoever arising out of the use of the Product(s) in such a manner.

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department.

RETURN REQUESTS/INQUIRIES

BE F O R E RE T U R N I NG ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAI N AN
AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN
ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the
outside of the return package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to
prevent breakage in transit.

FOR WARRANTY
following information available BEFORE
contacting OMEGA:

1. Purchase Order number under which
the product was PURCHASED,

2. Model and serial number of the product
under warranty, and

3. Repair instructions and/or specific
problems relative to the product.

OM EGA ’ s poli cy is to make run ni n g cha n ge s , not mod e l cha nge s, whe nev e r an impr ove m en t i s pos sib l e.
This affords our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2012 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, repro-

duced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior
written consent of OMEGA ENGINEERING, INC.

RETURNS, please have the

FOR NON-WARRANTY REPAIRS,

consult OMEGA
for current repair charges. Have the following
information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the

COST of the repair,

2. Model and serial number of the

product, and

3. Repair instructions and/or specific problems

relative to the product.

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

TEMPERATURE

䡺⻬

Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies

䡺⻬

Wire: Thermocouple, RTD & Thermistor

䡺⻬

Calibrators & Ice Point References

䡺⻬

Recorders, Controllers & Process Monitors

䡺⻬

Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

䡺⻬

Transducers & Strain Gages

䡺⻬

Load Cells & Pressure Gages

䡺⻬

Displacement Transducers

䡺⻬

Instrumentation & Accessories

FLOW/LEVEL

䡺⻬

Rotameters, Gas Mass Flowmeters & Flow Computers

䡺⻬

Air Velocity Indicators

䡺⻬

Turbine/Paddlewheel Systems

䡺⻬

Totalizers & Batch Controllers

pH/CONDUCTIVITY

䡺⻬

pH Electrodes, Testers & Accessories

䡺⻬

Benchtop/Laboratory Meters

䡺⻬

Controllers, Calibrators, Simulators & Pumps

䡺⻬

Industrial pH & Conductivity Equipment

SM

DATA ACQUISITION

䡺⻬

Data Acquisition & Engineering Software

䡺⻬

Communications-Based Acquisition Systems

䡺⻬

Plug-in Cards for Apple, IBM & Compatibles

䡺⻬

Data Logging Systems

䡺⻬

Recorders, Printers & Plotters

HEATERS

䡺⻬

Heating Cable

䡺⻬

Cartridge & Strip Heaters

䡺⻬

Immersion & Band Heaters

䡺⻬

Flexible Heaters

䡺⻬

Laboratory Heaters

ENVIRONMENTAL
MONITORING AND CONTROL

䡺⻬

Metering & Control Instrumentation

䡺⻬

Refractometers

䡺⻬

Pumps & Tubing

䡺⻬

Air, Soil & Water Monitors

䡺⻬

Industrial Water & Wastewater Treatment

䡺⻬

pH, Conductivity & Dissolved Oxygen Instruments

M5142/0612