Extech Instruments EX570 12 Function True RMS Industrial MultiMeter User's Manual

User Manual True RMS Multimeter with IR Thermometer Model EX570

Additional User Manual Translations available at www.extech.com

Introduction

Congratulations on your purchase of the Extech EX570 True RMS Autoranging Multimeter. This meter measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Duty Cycle, Diode Test, and Continuity plus Thermocouple Temperature and InfraRed Temperature. It features a waterproof, rugged design for heavy duty use. Proper use and care of this meter will provide many 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

This

WARNING

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

CAUTION MAX 1000V

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.

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 2 EX570-en-GB_V2.8 7/17

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. • Use great care when making measurements if the voltages are greater than 25 VAC rms or 35 VDC. 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 draining • 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. 3 EX570-en-GB_V2.8 7/17

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: V DC or V AC mA AC/DC Function A AC/DC Frequency, Resistance, Capacitance, Duty Cycle, Diode Test, Continuity Temperature

Input Protection Limits

Maximum Input 1000 VDC/AC rms 500 mA 1000V fast acting fuse 10A 1000V fast acting fuse (20A for 30 seconds max every 15 minutes) 1000 VDC/AC rms 1000 VDC/AC rms 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. 4 EX570-en-GB_V2.8 7/17

Controls and Jacks

1. IR Thermometer 2. Laser Pointer 3. 40,000 count LCD 4. MAX/MIN button 5. MEMORY button 6. SELECT button 7. Function switch 8. mA, µA and 10A input jacks 9. PEAK and RELATIVE button 10. RANGE button 11. HOLD and (Backlight) button 12. IR Thermometer button 13. Positive input jack 14. COM input jack

Note:

Tilt stand and battery compartment are on rear of unit. MEM n µ m A k F M Ω Hz % AC DC ºF MAX

Symbols and Enunciators

•))) Continuity Diode test Low Battery Memory nano (10 -9 ) (capacitance) micro (10 -6 ) (amps, cap) milli (10 -3 ) (volts, amps) Amps kilo (10 3 ) (ohms) Farads (capacitance) mega (10 6 ) (ohms) APO Ohms Hertz (frequency) Percent (duty ratio) Alternating current Direct current Degrees Fahrenheit Maximum Auto Power Off P V REL Peak Volts Relative AUTO Autoranging HOLD Display hold ºC MIN Degrees Centigrade Minimum 5 EX570-en-GB_V2.8 7/17

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.

AC/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. Rotate the function switch to the

V

position.

2. Press the

SELECT

button to display “

DC”

or “

AC

” on the LCD 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.

DC/AC MILLIVOLT MEASUREMENTS CAUTION:

Do not measure DC/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. 2. 3. 4. 5. Rotate the function switch to the

mV DC-AC

position.

Insert the black test lead banana plug into the negative

COM

jack. Insert the red test lead banana plug into the positive

V

jack. Press the

SELECT

button to select “

DC

” or “

AC

” millivolts. 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. Read the voltage in the display. 6 EX570-en-GB_V2.8 7/17

AC/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 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 400 mA 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 20A DC, set the function switch to the

10A/HZ/%

position and insert the red test lead banana plug into the

10A

jack. 5. Press the

SELECT

button to indicate “

DC

” or “

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 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.

RESISTANCE MEASUREMENTS WARNING:

cords. 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 1. Rotate the function switch to the

Ω

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

SELECT

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. 7 EX570-en-GB_V2.8 7/17

CONTINUITY CHECK WARNING:

To avoid electric shock, never measure continuity on circuits or wires that have voltage on them. 1. Rotate the function switch to the

Ω

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

SELECT

button to indicate“ " 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 35 Ω , the audible signal will sound. If the circuit is open, the display will indicate “

OL

”.

DIODE TEST

1. Rotate the function switch to the green

Ω

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

SELECT

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. 8 EX570-en-GB_V2.8 7/17

NON-CONTACT INFRARED TEMPERATURE MEASUREMENTS

1. Rotate the function switch to the

IR

position. 2. Press the

SELECT

button to select °F or °C. 3. Aim the infrared sensor (top of meter) at the surface to be measured. 4. 5. 6. Press the

IRT

button to turn on the IR thermometer and laser pointer. The laser pointer identifies the surface spot to be measured. The area of the surface to be measured must be larger than the spot size as determined by the distance to spot size specification. Read the temperature in the display. When the IRT button is released the displayed temperature will be held for approximately 10 seconds.

WARNING: Do not directly view or direct the laser pointer at an eye.

extended periods of time. Low power visible lasers do not normally present a hazard, but may present some potential for hazard if viewed directly for

IR Spot to Distance Diagram

The 30:1 spot to distance ratio determines the size of the measured surface area with respect to the distance the meter is held away from the surface.

IR Measurement Notes

1. 2. 3. 4. 5. 6. The object under test should be larger than the spot (target) size calculated by the field of view diagram. If the surface of the object under test is covered with frost, oil, grime, etc., clean before taking measurements. If an object's surface is highly reflective, apply masking tape or flat black paint to the surface before measuring. The meter will not make measurements through glass. Steam, dust, smoke, etc. can obscure measurements. To find a hot spot, aim the meter outside the area of interest then scan across (in an up and down motion) until the hot spot is located. 9 EX570-en-GB_V2.8 7/17

THERMOCOUPLE TEMPERATURE MEASUREMENTS

1. Rotate the function switch to the

TYPE K

position. 2. Insert the Temperature Probe into the input jacks, making sure to observe the correct polarity. 3. Press the

SELECT

button to indicate “

ºF

” or “

ºC

” 4. 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. 5. 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.

Note:

The temperature range of the supplied thermocouple probe is -20 to 250°C (-4 to 482°F)

CAPACITANCE MEASUREMENTS WARNING:

line cords. 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 1. Rotate the function switch to the

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. Touch the test leads to the capacitor to be tested. 4. Read the capacitance value in the display

FREQUENCY (DUTY CYCLE) MEASUREMENTS

1. Rotate t the function switch to the

Hz/%

position. 2. Insert the black lead banana plug into the negative

COM

jack and the red test lead banana plug into the positive

Hz

jack. 3. Touch the test probe tips to the circuit under test. 4. Read the frequency on the display. 5. Press the

SELECT

button to indicate “

%

”. 6. Read the % duty cycle in the display. 10 EX570-en-GB_V2.8 7/17

MEMORY

The meter can store and recall up to 3 readings.

Storing readings:

1. Press and Hold the

MEM

button until “ Memory 1 is ready to accept data.

MEM1

” (with a flashing 1) appears in the display. 2. 3. Press and release the Press and Hold the

MEM MEM

button to step through and select memories 2 or 3. button to store the displayed value into the memory selected. 4. After storing the reading, the meter will return to normal operation.

Recalling readings:

1. 2. 3. Press and release the Press and release the Press and release the

MEM MEM MEM

button. “

MEM1

” and the stored value will appear in the display. again button to step through and view memories 2 and 3. again button to return to normal operation.

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 until you select the range you want. 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 Temperature functions.

MAX/MIN

1. Press the

MAX/MIN

“max” occurs. key to activate the MAX/MIN recording mode. The display icon "

MAX

" will appear. The meter will display and hold the maximum reading and will update only when a new 2. Press the

MAX/MIN

key again and the display icon "

MIN

" will appear. The meter will display and hold the minimum reading and will update only when a new “min” occurs. 3. Press the

MX/MIN

key once more and the icon "

AVG

" will appear. The meter will display the average reading since the meter was powered on. 4. To exit

MAX/MIN

mode press and hold the

MAX/MIN

key for 2 seconds. 11 EX570-en-GB_V2.8 7/17

Relative mode

The relative measurement feature allows you to make measurements relative to a stored 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 and Hold the

REL

button to store 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 and Hold the

REL

button to exit the relative mode.

PEAK HOLD

The Peak Hold function captures the peak AC voltage or current. The meter can capture negative or positive peaks as fast as 1 millisecond in duration. Press the

PEAK

button again to exit the mode.

PEAK

button. “

PMAX

” will appear in the display. The meter will update the display each time a higher positive peak occurs. Press the

DISPLAY BACKLIGHT

Press the

HOLD/

key for >1 second to turn the backlight on. The backlight will automatically turn off after 10 seconds.

HOLD

The hold function freezes the reading in the display. Press the

HOLD

key momentarily to activate or to exit the

HOLD

function.

LOW BATTERY INDICATION

When the low battery icon appears in the display, the battery should be replaced.

AUTO POWER OFF

The auto off feature will turn the meter off after 15 minutes. To disable the auto power off feature, hold down the

SELECT

button and turn the meter on. “

APO d

” will appear in the display. Turn the meter off and then on again to re-enable the auto power off feature. 12 EX570-en-GB_V2.8 7/17

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.

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.

Never dispose of used batteries or rechargeable batteries in household waste. As consumers, users are legally required to take used batteries to appropriate collection sites, the retail store where the batteries were purchased, or wherever batteries are sold.

Disposal:

Do not dispose of this instrument in household waste. The user is obligated to take end of-life devices to a designated collection point for the disposal of electrical and electronic equipment.

Other Battery Safety Reminders

o

Never dispose of batteries in a fire. Batteries may explode or leak.

o

Never mix battery types. Always install new batteries of the same type.

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. 13 EX570-en-GB_V2.8 7/17

REPLACING THE FUSES WARNING

: To avoid electric shock, disconnect the test leads from any source of voltage before removing the meter 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 600 mA range [SIBA 70-172-40], 10A/1000V fast blow for the 10A 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. 14 EX570-en-GB_V2.8 7/17

Specifications

Function DC Voltage Range 400 mV 4V 40V 400V Resolution 0.01 mV 0.0001V 0.001V ± Accuracy (0.06% reading + 2 digits) AC Voltage DC Current AC Current 1000V 400 mV 4 V 40 V 400 V 1000 V 0.01V 0.1V 0.01 mV 0.0001 V 0.001 V 0.01 V 0.1 V ± 40 Hz to 65 Hz (0.5% rdg + 3 digits) ± 66 Hz to 1000 Hz (1% rdg + 3 digits) All AC voltage ranges are specified from 5% of range to 100% of range 400 µ A 0.01 µ A 4000 µ A 0.1 µ A ± (0.7% reading + 3 digits) 40mA 0.001 mA 400mA 10A 0.01 mA 0.00 A ± (1.0% reading + 3 digits) ± (1.5% reading + 3 digits) (20 A: 30 sec max with reduced accuracy) 400 µ A 4000 µ A 40mA 0.01 0.1 µ µ A A 0.001 mA ± 40 Hz to 65 Hz (1.0% rdg + 3 digits) ± 66 Hz to 1000 Hz (1.5% rdg + 3 digits) 400mA 10A 0.01 mA 0.001 A ± (2.0% reading + 3 digits) ± (2.0% reading + 3 digits) (20A: 30 sec max with reduced accuracy)

NOTE:

Accuracy is stated at 18 o C to 28 o C (65 o F to 83 o F) and less than 75% RH. 15 EX570-en-GB_V2.8 7/17

Capacitance

Function

Resistance Frequency Duty Cycle Temperature (type-K) Temperature IR

Range

400 Ω 4 k Ω 40 k Ω 400 k Ω 4 M Ω 40 M Ω 40 nF 400 nF 4 µF 40 µF 400 µF 4000 µF 40000 µ F

Resolution

0.01 Ω 0.0001 k Ω 0.001 k Ω 0.01 k Ω 0.0001 M Ω 0.001 M Ω 0.001 nF 0.01 nF 0.0001 µF 0.001 µF 0.01 µF 0.1 µF 1 µF ± ± ±

Accuracy

(0.3% reading + 4 digits) (2.0% reading + 20 digits) (3.5% reading + 40 digits) ± (5% reading + 10 digits) 40 Hz 400 Hz 4 kHz 40 kHz 400 kHz 4 MHz 0.001 Hz 0.01 Hz 0.0001 kHz 0.001 kHz 0.01 kHz 0.0001 MHz ± (0.1% reading + 1 digits) 40 MHz 0.1 to 99.90% 0.001 MHz 0.01% ± (1.0% reading + 2 digits) -50 to 1382 -45 to 750 ° ° Pulse width: 100 µs – 100 ms, Frequency: 5 Hz to 150 kHz F C 1 1 ° ° F C ± (1.0% reading + 4.5°F) ± (1.0% reading + 2.5°C) -30 to -5 ° C -6 to 100 ° C 101 to 550 ° C -22 to 23 ° F 24 to 212°F 213 to 1022°F 1 ° C/ ° F (probe accuracy not included) ± 4 ° C ± 2 ° C ± (2.0%rdg + 2 ° C) ± 8 ° F ± 4°F ± (2.0%rdg + 4 ° F) 16 EX570-en-GB_V2.8 7/17

Enclosure Diode Test Continuity Check PEAK Memory Temperature Sensor Input Impedance AC Response ACV Bandwidth IR Spectral response IR Emissivity IR distance ratio Laser pointer Crest Factor Display Overrange indication Auto Power Off Polarity Measurement Rate

Double molded, Waterproof (IP64) Test current of 0.9mA maximum, open circuit voltage 2.8V DC typical Audible signal will sound if the resistance is less than 35 Ω (approx.), test current <0.35mA Captures peaks >1ms Store and recall up to 3 values Requires type K thermocouple >10MΩ VDC & >3MΩ VAC True rms 40Hz to 1000Hz 6 to 16µm 0.95 fixed 30:1 Class 2 laser < 1mW power; Wavelength is 630 to 670nm ≤3 at full scale up to 500V, decreasing linearly to ≤1.5 at 1000V 40,000 count backlit liquid crystal display with bargraph “

OL

” is displayed 15 minutes (approximately) with disable feature Automatic (no indication for positive); Minus (-) sign for negative 2 times per second, nominal

Low Battery Indication “ Battery ”

is displayed if battery voltage drops below operating voltage 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

5ºC to 40ºC (41ºF to 104ºF)

Storage Temperature Operating Humidity Storage Humidity

-20 o C to 60 o C (-4 o F to 140 o F) Max 80% up to 31ºC (87ºF) decreasing linearly to 50% at 40ºC (104ºF) <80%

Operating Altitude Weight Size Safety

2000 meters (7000 ft) maximum 342 g (0.753 lb) (includes holster) 187 x 81 x 50 mm (7.36” x 3.2” x 2.0”) (includes holster) 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. CE nd Edition

Approvals

Copyright

©

2012-2017 FLIR Systems, Inc.

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

ISO-9001 Certified

www.extech.com

17 EX570-en-GB_V2.8 7/17