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User Manual
ET30 Magnetic Field Detector
Introduction
Thank you for selecting the Triplett Model ET30 magnetic field detector. The ET30
can test solenoid valves in pneumatic/hydraulic control equipment, relays with coils,
electrically controlled solenoid valves in vehicles/machinery/oil burners, and audio
speaker coils. The ET30 responds to AC/DC magnetic fields and permanent
magnets.
Safety Information
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Caution! Refer to the explanation in this Manual
Operating Instructions
CAUTION: Read, understand and follow Safety Rules and Operating Instructions in this manual
before using this product.
WARNING: Risk of Electrocution. Before use, always test the Magnet Detector on a known live
circuit to verify proper operation
WARNING: Risk of Electrocution. Keep hands and fingers on the body of the probe and away
from the probe tip.
1. Press and hold the test switch and approach the testing area slowly with the
2. When a magnetic field is sensed by the ET30, the blue probe light will illuminate.
3. To switch ON the flashlight .press and hold the flashlight switch. Release the button
Double Insulation or Reinforced insulation
CE Compliance
This device must not be handled by children. It contains hazardous objects as well as small parts that can be
swallowed.
Do not leave batteries and packing material unattended; they can be dangerous for children. If unused for an
extended period of time, remove the batteries from this device Expired or damaged batteries can cause
cauterization on contact with the skin; use suitable hand gloves in such cases. Ensure that the batteries are not
short-circuited. Do not throw batteries into the fire.
probe tip.
Solid light indicates a strong field; flickering light indicates a weak field.
to switch the flashlight OFF. If the flashlight does not switch ON please check the
batteries. The battery compartment is located on the rear of the ET30.
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NOTE: The detector is designed with high sensitivity. Static electricity, stray magnetic fields, or
other sources of energy may randomly trip the sensor. This is normal operation. Strong fields will
yield a fixed indication.
NOTE: It is not necessary to unscrew the test object from its mounting on the equipment in order
to carry out a test; a magnetic coil can even be tested through its protective covering.
Battery Installation
5. Slide open the battery door compartment while gently prying up/out at the pocket clip using a
small screwdriver in the pocket clip access hole.
6. Insert two AAA batteries and replace the door.
Specifications
Power 2 x AAA 1.5V batteries
Magnetic Field ranges 63, 98, 401, 810 (Henry units)
Power Consumption 32mA maximum
Operating/Storage Temperature -10 to 50°C (14 to 122°F)
Relative Humidity 95% max. from 0 to 40°C (32 to 104°F)
Altitude 3000m (9842 ft.)
Pollution Degree II
Dimensions 159 x 21 x 25mm (6.25 x 0.8 x1”)
Weight 48g (1.7 oz.)
Warranty Information
Triplett / Jewell Instruments extends the following warranty to the original
purchaser of these goods for use. Triplett warrants to the original purchaser for
use that the products sold by it will be free from defects in workmanship and
material for a period of (1) one year from the date of purchase. This warranty
does not apply to any of our products which have been repaired or altered by
unauthorized persons in any way or purchased from unauthorized distributors so
as, in our sole judgment, to injure their stability or reliability, or which have been
subject to misuse, abuse, misapplication, negligence, accident or which have
had the serial numbers altered, defaced, or removed. Accessories, including
batteries are not covered by this warranty
You, as the end user, are legally bound (EU Battery ordinance) to return all used
batteries and accumulators to wherever batteries / accumulators are sold!
Disposal: Follow the valid legal stipulations with respect to the disposal of the
device at the end of its lifecycle.
Copyright © 2019 Triplett
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