HP Extech 380976 manual Capacitance Measurements, Diode Tests, Temperature Measurements

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Capacitance Measurements

1. Fully discharge the capacitor under test before proceeding.

2. Insert the test leads into the input jacks. (Black to ‘COM’ and

Red to ‘’).

3. Set the rotary switch to the ‘’ position.

4. Connect the red and black test leads to the capacitor. For Electrolytic (polarized) capacitors, connect the red test lead to the positive side and the black lead to the negative side.

5. Read the capacitance value displayed on the LCD.

Note: Large valued capacitors will take a long period of time to charge and to auto-range to the correct range. (up to 60 seconds in the worst case). For improved resolution and shortest test time, manually pre-selecting the proper range is recommended.

Diode Tests

1. Set the rotary switch to the "

" position.

2.Insert the test leads into the input jacks. (Black to ‘COM’ and Red to ‘ ’)

3.Touch the test probe tips to the diode or semiconductor junction under test. Note the meter reading.

4.Reverse the test lead polarity by reversing the red and black leads. Note this reading.

5.The diode or junction can be evaluated as follows:

a.If one reading shows a value and the other reading shows ‘OL’ (overload), the diode is good.

b.If both readings show ‘OL’, the device is open.

c.If both readings are very small or zero, the device is shorted.

d.Note that the audible continuity function is operational in this mode (<40mV).

Temperature Measurements

1. Set the rotary switch to the "TEMP" position.

2.Press the RANGE button to select the desired unit of measure (C or F).

3. Insert the Type K Thermocouple into the subminiature input jacks located to the lower left of the rotary selector switch.

4. Touch the thermocouple sensor to the object under test.

5. Read the temperature value on the LCD.

AC and DC µA Measurements

1. Set the rotary switch to the " µA" position.

2. Insert the test leads into the input jacks. (Black to ‘COM’ and Red to ‘µA’)

3. Connect the test leads in series with the circuit or device under test.

4. The meter will automatically select AC or DC and the appropriate range.

5. Read the current value on the LCD.

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380976

V3.1

6/08

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Contents 1Φ/3Φ 1000 Amp True RMS Power Clamp-On Model Table of Contents IntroductionWhen servicing, use only specified replacement parts WarrantySafety Information Meter Description AC Current Measurements MeasurementsAC + DC Voltage Measurements 380976 V3.1 380976 V3.1 KW+PF Power Factor, KW+KVAR, KVA+θPhase Angle or A+V KVA 3φ 3W380976 V3.1 380976 V3.1 380976 V3.1 380976 V3.1 KVA 3φ 4W Resistance and Audible Continuity MeasurementsDiode Tests Temperature MeasurementsCapacitance Measurements AC and DC µA MeasurementsRange Key Meter Control KeysHold MX/MN Key Battery Replacement Automatic Sleep Mode and Battery ReplacementAuto Sleep Disable Specifications ΜA True RMS AC+DC Measurement SpecificationsAC Current 50Hz to 400Hz True RMS AC Voltage 50Hz to 400Hz True RMS1Φ/3Φ Horse Power HP PF 0.5 or 60o 50/60Hz Temperature K-Type thermocouple1Φ/3Φ True Power PF 0.5 or 60o 50/60Hz 1Φ/3Φ Reactive Power Kvar PF 0.5 or 60o 50/60HzPhase Angle 50/60Hz Calibration and Repair Services1Φ/3Φ Apparent Power KVA Frequency