Extech 380580 Bruksanvisning

Les nedenfor 📖 manual på norsk for Extech 380580 (8 sider) i kategorien Ikke kategorisert. Denne guiden var nyttig for 4 personer og ble vurdert med 4.5 stjerner i gjennomsnitt av 2 brukere

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USER Manual
Model 380580
Battery Powered Milliohm Meter
Additional User Manual translations available at www.extech.com
2 - - _v2.7 /22 380580 en US 10
Introduction
Congratulations on you Model 380580 Battery Powered Milliohm Meter. This device r purchase of Extech’s
offers five resistance ranges with resolution as low as 0.1m . The 4-wire Kelvin clip connection ensures
optimum accuracy. Typical applications include transformer, motor coil, and PC Board resistance
measurements. This professional meter, with proper care, will provide years of safe reliable service.
Meter Description
1. Current Terminals
2. Potential Measurement Terminals
3. LCD Display
4. Start/Stop Test Button
5. Range Select/Power Switch
6. LED Error Lights
No Test/Over Temperature
RP Voltage Regulation
RC Current Regulation
7. Current/Range Table
Leads
Current Leads- Banana plug to alligator clip
- Green C1
- Blue C2
Voltage Potential Leads- Banana plug to alligator clip
- Red P1
- Black P2
Kelvin Clips- Banana Plugs (2) to Kelvin Clip
Red (P1) Green (C1)
Black (P2) and Blue (C2)
Measurement Considerations
1. Do not apply voltage to the meter input terminals. Meter damage may result.
2. Always insure that the circuit to be measured is switched OFF, isolated and completely de-energized
before connecting the test leads.
3. If the Over Temperature LED (NO TEST) indicator is lit, allow the instrument to cool down before
proceeding further.
4. The RC led indicates when the test current falls out of regulation. Selecting a higher range may
eliminate the condition.
5. The RP led indicates when the voltage on the device under test is too high. Selecting a lower range
may eliminate the condition.
6. If either the RC or RP led is on, the measurement may be in error.
7. The current terminals are fuse protected.
8. Keep the potential test leads as short as possible. Long leads may introduce noise.
9. When using the four separate alligator clip leads always place the current leads outside the potential
leads.
3 - - _v2.7 /22 380580 en US 10
Preliminary Checks
Current Regulation Check
1. Connect the current leads C1 and C2 to the meter.
2. Set the function switch to the 200.0m range. Ω
3. Momentarily press the TEST RP button. The meter will
intermittently beep Rand C will light
4. Short the current leads C1 to C
2.
5. The RC LED should go off, indicating that the meter is operating
correctly.
6. Momentarily press the TEST RP button to stop the test
7. The meter will return to status. NO TEST
Voltage Measurement check
1. With the current test leads C1 and C
2 shorted, connect and short
the potential (voltage) leads P1 and P2.
2. Set the Function switch to the 200.0m position. The ΩNO TEST
status LED will light.
3. Momentarily press the TEST RP button. (the meter will
intermittently beep)
4. The display should indicate 00.0
5. Momentarily press the TEST R P
button to stop the test.
The status LED will light. NO TEST
6. Remove the shorts from P1 and P2, and C1 and C2 and
7. Short the test leads P1 to C 1
and P2
to C2
8. The RP LED as well as the status LED should light NO TEST
indicating an over-voltage or over-range
9. Turn the rotary selector switch to OFF
Polarity check
1. Short the test leads P1 Cto 2
Pand 2
Cto 1 together.
2. Set the Function switch to the 200.0m position. Ω
3. The “ “ negative indicator should appear in the display.-1
Operation check
Use the Kelvin clips for this test
1. Short the all the leads (P1
, P2 ,C2,C1
) together. The P1, P2
,C2,C1
order is important.
2. Set the Function switch to the 200.0m position. The ΩNO
TEST status LED will light.
3. Momentarily press the TEST RP button. (the meter will
intermittently beep
4. The display should indicate near 00.0 ( -0.2m depending +/ )
on the test clip connections and both RP and RC LEDs should
remain off.
5. Momentarily press the TEST RP button to stop the test.
Note: These tests can be performed on any range.

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Modell: 380580

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