GxT Ferret 927 User Manual
OPERATOR’S MANUAL
High Amps Probe 927
FEATURES
To Measure Low Amps with a DMM
1. Connect the High Amps Probe to the interface module.
2. Connect the interface module to the multimeter’s
banana jacks.
3. Select the millivolts range.
4. Close the Jaws on the High Amps Probe and zero the
reading on the DMM by adjusting the zero knob on
the interface module.
5. Clamp the High Amps Probe around the circuit you
want to test. 1 Millivolt equals 1 Amp. A reading on
the Multimeter of 125.1 Millivolts means you are
measuring 125.1 Amps.
To View Waveforms on a Lab Scope
1. Connect the High Amps Probe to the interface module.
2. Connect the interface module to one of the LabScope’s
Channels. Use the BNC or Banana Adapter as
needed.
3. Select a volts per division and a time base that will
allow you to see the waveform of the circuit under test.
4. Make sure the jaws are closed on the Amps Probe
and zero the trace on the LabScope by adjusting the
zero knob on the interface module.
5. Clamp the High Amps Probe around the circuit you
want to test and view the waveform.
Other Instructions
The interface module has two power options. The first time
you press the power button the LED will flash indicating
the unit will stay on until the battery is dead.
High Amps Probe measures
from 1 Amp to 600 Amps AC
or DC.
Connects to any Digital
Multimeter w/Banana Jacks
and a millivolt scale.
Connects to any Graphing
Multimeter or Labscope w/
Banana Jacks or BNC
connectors.
Powered by a 9 Volt battery.
3 Year Limited Warranty
www.ferretinstruments.com
The second time you press the power button, the LED will
stay on indicating the unit will automatically power down in
5 minutes.
The third time you press the power button the unit will turn
off.
Technical Support
For additional information or technical assistance, please
contact Ferret Instruments at (800) 627-5655 or
www.ferretinstruments.com.
SAFETY PRECAUTIONS
• Always wear safety glasses, or other eye protection when testing vehicles. Be extra careful
near batteries and moving parts.
• Battery gas is highly explosive.
a. If a battery explodes, flush the acid away from person's skin with generous amounts of
water. Follow up with a neutralizing solution of baking soda and then more water.
Medical treatment for acid burns may be necessary.
Treat clothing, vehicle parts, and equipment similarly. Any acid traces inside equipment
must be removed by generous rinsing. Dry off equipment afterwards and place in a
warm 50° C (120° F) oven until thoroughly dry.
b. Never use a wrench on the ungrounded battery terminal until the grounded one has
been disconnected. Contact between the vehicle body metal and the "hot" terminal can
cause sparks to ignite gas or even weld tools into a battery short circuit.
c. Keep the space around a battery well ventilated.
d. Do not make sparks or allow flames near batteries.
• Before working on a vehicle, set the brakes and block the wheels. Beware of automatic
parking brake releases.
• Keep your work area well ventilated and free of exhaust. Engine exhaust contains deadly
poisons.
• Avoid electrical shocks caused by getting too close to live ignition wires or touching the coil
TACH terminal. A person's reaction near a running engine can be more damaging than the
shock.
• Keep spark producing devices at least 0.5m (18") above the floor to reduce the hazard of
igniting gasoline vapor.
• Do not let test leads wind up in a fan or pulley. Route leads away.
• Remove finger rings and metal wristbands. They can short terminals and become very hot
from electric current.
FERRET INSTRUMENTS, INC. of Cheboygan Michigan, warrants to the original purchaser that any products manufactured
or supplied by Ferret Instruments, Inc. are free from defects in materials and workmanship for a period of three years from
date of purchase. Our sole obligation for a product within the above warranties will be to repair or replace, at our option, any
defective parts and return the product to the sender within the U.S.A., shipping prepaid, if it is sent to our Repair Department shipping prepaid and accompanied by proof of purchase. The above warranty is extended for the flashtubes in timing
lights which are within five years of the date of manufacture.
A Ferret product less than five years old according to the date of manufacture, and which is returned with transportation
charges prepaid to: Ferret Instruments, Inc., Repair Department, 1310 Higgins Drive, Cheboygan, MI 49721, will be
repaired or replaced, at factory option, for a service charge not to exceed 40% of the latest factory suggested user price;
plus return transportation charges and insurance. If the product has been discontinued, the nearest equivalent product may
be substituted.
FERRET INSTRUMENTS LIMITED PRODUCT WARRANTY
EXTENDED SERVICE POLICY
This Warranty and Extended Service Policy do not apply to products which have been altered outside the factory; or
repaired by anyone other than the factory or its authorized service centers; or which have been damaged from accidents,
negligence, or abuse; or have been used differently than described in the printed instructions. Please note that wear and
tear on leads and replacement of consumable (paper, oxygen sensors, Nox Sensors, etc.) items, is not covered by warranty.
Ferret Instruments, Inc.'s sole liability and buyer's exclusive remedy is limited to repair or replacement of the product as
stated in the Limited Product Warranty and the Extended Service Policy. THERE ARE NO OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING THOSE OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
AND FERRET INSTRUMENTS, INC. SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING FROM THE SALE OR USE OF THE PRODUCT.
Some states do not allow limitations on the length of implied warranties nor exclusion or limitations of incidental or consequential damages, so that the above limitations and/or exclusion may not apply to you. This warranty gives you specific
legal rights and you may also have other rights which may vary from state to state.
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