Product Manual

ManualsBrandsAmprobe ManualsConstruction ToolsAMB-25 Digital Insulation Resistance Tester with Dual Display

INSULATION TESTER

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).

AMB-25

Do not touch the Circuit connections during a test.

Disconnect the live test lead before disconnecting the neutral

test lead.

INSTRUCTION MANUAL

After insulation tests, to protect electric shock, capacitive circuits

must to be discharged.

READ

MEM

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.

HOLD

Do not use the meter if the low battery indicator (

) is

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:

Summary of content (9 pages)

PAGE 1
INSULATION TESTER AMB-25 INSTRUCTION MANUAL MEM READ m: s 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.
PAGE 2
-2 Electrical Specifications Accuracies are specified as: ±(...% of reading + ...digits) at 23℃ ±5℃,below 80% RH. 2. SPECIFICATIONS 2-1 General Information Environment conditions : c Installation CategoriesⅢ 1000V Range d Pollution Degree 2 e Altitude up to 2000 meters f Indoor use only 40MΩ/400MΩ Safety Meets of IEC61010-1 and IEC61557 Display : Dual display, 3-3/4 Digital readout with analog bar indication. Sampling Rate : 2.5 sample/sec. Manual data Memory and Read : Memory capacity 9 set.
PAGE 3
c LCD display. 3. PARTS & CONTROLS d MEM key : Manual data memory control key. e 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. COM V b). In MΩ mode continuously applies the test voltage to the circuit to be tested. The beeper sounds every 2 seconds to remind you that you are in the LOCK mode. c). Press Lock or TEST key again to exit the mode. f READ key: Manual memory data reading control key.
PAGE 4
6 Display : 4. BEFORE OPERATION MEM READ DC Warning To avoid electrical shock remove test leads before opening case or battery cover. Do not operate with battery cover open. 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
7 4-5 Manual Data Memory and Read Mode : 1). Clear the manual memorized data 8 5. Ω RESISTANCE AND CONTINUITY MEASUREMENTS c Set the function switch to OFF position to turn off the meter. 1). Set the function switch to Ω d Press and hold down "MEM" key, and turn on the meter. When LCD shows "dEL" which means the manual memorized data is erased. 2). Connect red test lead to “ VΩ ” terminal and black test lead to “ COM ” terminal. 2).
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9 4). Keeping the probes on the test points when release the TEST key. The upper right display shows the measured resistance reading and the circuit now discharges through the meter, while the main display reading shows the decreasing voltage, keep the probe touched to test points until the circuit is completely discharged and the main display shows “-----“. The upper right display holds the resistance reading until a new test is started or a different function is selected. 10 7.
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individually, leaving the other connected to the grounded motor housing. The above also applies to DC Generators. 11 3). Press TEST key, the display should indicate approximately 0.5Ω, if the display reads OL, replace the fuse as described next and test again. 12 8-2 Replace the Fuse Warning To avoid electric shock, personal injury or damage to the meter, use only the specified fuse. 1). Set the function switch to OFF position. 2). Disconnect test leads from any power source. 3).
PAGE 8
13 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.
PAGE 9
Sep-2003