Amprobe AMB-25 Instruction Manual
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Amprobe AMB-25 Instruction Manual

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INSULATION TESTER
AMB-25
INSTRUCTION MANUAL
m:
s
MEM
READ
AC
HOLD
K
M
VG
1. SAFETY INFORMATION
The circuit under test must be de-energized and isolated before
connections are made except for voltage measurement.
Verify operation prior to measuring hazardous voltages (voltage
above 30V AC rms, 42V AC peak and 60V DC).
Do not touch the Circuit connections during a test.
Disconnect the live test lead before disconnecting the neutral
test lead.
After insulation tests, to protect electric shock, capacitive circuits
must to be discharged.
Do not use the meter if the low battery indicator (
showed.
Test leads (including crocodile clips) must be in good order,
clean and no broken or cracked.
Do not use the meter if it looks damaged.
Do not use the meter around explosive gas, vapor or dust.
Do not push test button before all connection and preparation is
done. The instrument must only be used by suitably trained and
competent persons.
Do not use the meter with any parts or cover removed.
Do not use the meter in a wet environment.
U.S. PAT. NO. 478,017
JAPAN PAT. NO. 1180870
CHINA PAT. NO. ZL02367250.1
Warnings and Safety symbols:
Caution refer to this manual before using the meter.
Dangerous voltages.
Meter is protected throughout by double insulation or
reinforced insulation.
Comply with IEC1010-1
When servicing, use only specified replacement parts.
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Summary of Contents for Amprobe AMB-25

  • Page 1 The circuit under test must be de-energized and isolated before connections are made except for voltage measurement. Verify operation prior to measuring hazardous voltages (voltage AMB-25 above 30V AC rms, 42V AC peak and 60V DC). Do not touch the Circuit connections during a test.

  • Page 2: Specifications

    2-2 Electrical Specifications 2. SPECIFICATIONS Accuracies are specified as: ±(...% of reading + ...digits) at 23℃ ±5℃,below 80% RH. 2-1 General Information Environment conditions : Insulation Resistance Installation CategoriesⅢ 1000V Range Resolution Accuracy Test Voltages Pollution Degree 2 Altitude up to 2000 meters 40MΩ/400MΩ...

  • Page 3: Parts And Controls

    LCD display. 3. PARTS & CONTROLS MEM key : Manual data memory control key. LOCK key : Locks the test Insulation Resistance (MΩ). a). Press and hold down TEST key, then press LOCK key, the “ LOCK ” icon appears on the display. b).

  • Page 4: Before Operation

    Display : 4. BEFORE OPERATION Warning To avoid electrical shock remove test leads before opening case or battery cover. Do not operate with battery cover open. READ To avoid electrical shock when performing resistance tests, remove all power from the circuit to be measured. To avoid electrical shock, first connect the test leads to the meter inputs before you make connection to the circuit under test.
  • Page 5 4-5 Manual Data Memory and Read Mode : 5. Ω RESISTANCE AND CONTINUITY MEASUREMENTS 1). Clear the manual memorized data 1). Set the function switch to Ω position. Set the function switch to OFF position to turn off the meter. Press and hold down "MEM"...

  • Page 6: Power Tools And Small Appliances

    4). Keeping the probes on the test points when release the TEST key. 7. POWER TOOLS AND SMALL APPLIANCES The upper right display shows the measured resistance reading and the circuit now discharges through the meter, while the This test would also apply to other similar equipment that has a line cord. main display reading shows the decreasing voltage, keep the For double insulated power tools, one leads of megohmmeter to be probe touched to test points until the circuit is completely...

  • Page 7: Battery Replacement

    individually, leaving the other connected to the grounded motor housing. 3). Press TEST key, the display should indicate approximately 0.5Ω, if the The above also applies to DC Generators. display reads OL, replace the fuse as described next and test again. 8-2 Replace the Fuse Warning To avoid electric shock, personal injury or damage to the meter, use...

  • Page 8: Warranty

    WARRANTY Congratulations! Your new instrument has been quality crafted according to quality standards and contains quality components and workmanship. It has been inspected for proper operation of all of its functions and tested by qualified factory technicians according to the long-established standards of our company.

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