Extech Instruments DL150 User manual

User Manual
True RMS AC Voltage/Current
Datalogger
Model DL150
Additional User Manual Translations available at www.extech.com

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Introduction
Congratulations on your purchase of this Voltage or Current datalogger. With this meter, you can
monitor and log data over long periods of time and then easily transfer the data to a pc for viewing
and evaluation. The LCD display provides real time data, Max/Min data and time information. This
meter is shipped fully tested and, with proper use, will provide years of reliable service.
Safety
Warning!
•Do not attempt to make measurement in flammable gaseous areas!
•When testing a non-insulated cable, pay attention to avoid short circuits.
•Do not attempt to use the instrument when your hand is wet!
•Do not input over range during measurements.
•Never open the battery cover during measurements.
•Stop using the instrument when there is any structural defect or exposed metal parts.
•Do not install substitute parts or make modifications on the meter.
•Never replace the battery in moist areas.
•Ensure the meter is disconnected and switch off before opening the battery cover to replace
the battery.
•Do not attempt to place the instrument in high vibration areas.
•Do not expose the meter to direct sunlight, high temperature and high moisture environment.
•Switch off the meter after use. Remove the AAA batteries when the meter will be stored for a
period of time.
•When cleaning, do not use abrasives or solvents on the meter, use a damp cloth and mild
detergent only.

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Description and Button Functions
1. LCD Description
: Normal record mode is selected
:Capture record mode is selected. Records the sine
wave when the measure value exceeds the Capture
Detection set level.
: Auto power off setting, the meter will automatically
shut off after 5mins without any button presses.
: Average peak measure and record mode selected
(about 195ms)
: Recording status. After the record mode is set up by the software, press the
START/STOP button for more than 4 seconds to begin recording. This icon will be
displayed and indicates the meter is recording data. Press the same button again for
more than 4 seconds to stop recording.
: Record until full is selected. When the memory is full, the datalogger will stop recording.
: Continuous recording is selected. When the memory is full, the data will overwrite the
oldest data.
: Memory full and recording has stopped.
: Battery sign, when display completely the battery power is full. When there is only a
frame icon displayed, the battery is exhausted and should be replaced with a new one.
2. AC adaptor Jack
3. ON/OFF Button
4. MAX/MIN: Press the button one time to display the MAX
(maximum) reading. Press again to display the MIN (minimum)
reading. A third press will exit MAX/MIN mode. The meter will
automatically exit MAX/MIN mode in 10 seconds if no button is
pressed.
5. CH Input Jack: Insert the current or voltage sensor to this COM to
measure and record the data.
6. PEAK HOLD: In the non-PEAK measurement mode, press the
PEAK HOLD button to display the average Peak value of the
present value. Press the button again to exit PEAK display. The meter will automatically exit in
10s if no button is pressed.
7. START/STOP: Press the START/STOP button for one time to pause data. Press again to
resume. After setting the record mode, press this button for more than 4 seconds and then
release it after REC is shown on the LCD. The meter will measure and record data according to
the software setup.
8. USB Port
9. AC Current Clamp Jaw: Clamp the jaws around a single
conductor for AC current measurements to 200A
10. Jaw Opening Trigger
11. CH Plug

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12. AC Voltage Probes or Alligator clips
13. Voltage module
14. CH Plug
Operation
1. Install 4 fresh AAA batteries or connect the AC adaptor.
2. Set-up the datalogger using the software provided.
See the Software Help Guide that comes with the software.
3. Connect either the voltage or current probe to the bottom of the meter.
4. Connect the voltage test leads or the current probes to the AC source to be measured.
5. Press and Hold the START/STOP button for four seconds to start recording. The “REC” icon
will appear in the display indication that recording has begun.
6. Press and Hold the START/STOP button for four seconds to stop recording. The “REC” icon
will disappear from the display.
NOTE: if you STOP the recording you MUST reprogram the meter with the software before
recording again.
7. Remove the probe from the test circuit, connect the datalogger to a PC and use the supplied
software to download the data.
Voltage Test Leads
Single Phase: Connect one lead to one phase and the other lead to the Neutral line.
Multi phase: Connect one lead to one phase and the other lead to another phase.
Current clamp
Connect the clamp over one lead only and the clamp jaw must fully close in order to measure
correctly.

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Battery Replacement
Safety: Please dispose of batteries responsibly; never dispose of batteries in a fire, batteries may
explode or leak. If the meter is not to be used for 60 days or more, remove the battery and store
separately.
Note: If the clock does not set to the correct time, replace the 3V button battery
PC Interface and Software
Check the software download page of the website www.extech.com/software/downloads for the
latest version of the PC software. Instructions for use and features are detailed in the supplied
software HELP utility.

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Specifications
Display Multi-function LCD
Maximum data points 100,000
Channels Single channel, TRMS AC Voltage or Current
Sample rate 1s to 24h selectable
Transient capture >0.244mS
Data output USB port
Open input indication "LO" appears on the LCD
Low battery indication Empty battery symbol appears on the LCD
Power supply 4 AAA Batteries
Battery life 5 days (approximately)
AC Adaptor 9V, 0.5A
Standards CAT III 600V
Operating Temperature 32 to 122°F, 0 to 50°C
Operating Humidity <70% RH
Current Clamp Jaw opening 0.5” (12.7mm)
Dimensions 4.5 x 2.5 x 1.3” (114 x 63 x 34mm)
Weight 8.7oz. (248g)
Range Accuracy
Voltage
40Hz to 1kHz
10VAC to 600.0VAC ±2.0%±1V
Current
50/60Hz
10A to 200.0A ±2.0%±1A
Peak Measurement 8.0 to 850.0V ±5.0%

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Two-year Warranty
FLIR Systems Inc.warrants this Extech brand instrument to be free of defects in parts and
workmanship for two years from date of shipment (a six-month limited warranty applies to sensors
and cables). To view the full warranty text please visit: http://www.extech.com/support/warranties.
Calibration and Repair Services
FLIR Systems Inc.offers calibration and repair services for the Extech brand products
we sell. We offer NIST traceable calibration for most of our products. Contact us for
information on calibration and repair availability, refer to the contact information below.
Annual calibrations should be performed to verify meter performance and accuracy.
Product specifications are subject to change without notice. Please visit our website for the
most up-to-date product information: www.extech.com.
Contact Customer Support
Customer Support Telephone List: https://support.flir.com/contact
Calibration, Repair, and Returns: [e-mail]
Technical Support: https://support.flir.com
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All rights reserved including the right of reproduction in whole or in part in any form
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