Tenma 72-17175, Руководство пользователя

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ELECTRICAL SPECIFICATIONS
Current Source
Range Display resolution Accuracy
0-19.99mA 0.01mA ±(0.25%FS+1d)
0-24mA 0.1mA ±(0.5%FS+1d)
* Output 0 to 24mA current for loads up to 500ohms
* Output >20mA current for loads up to 400ohms
* FS: full scale
Current Measurement
Range
Display resolution Accuracy
0-19.99mA 0.01mA ±(0.25%FS+1d)
0-24mA 0.1mA ±(0.5%FS+1d)
* FS: full scale
Power and Current Measurement of Two Wire Loop
Range
Display resolution Accuracy
0-19.99mA 0.01mA ±(0.25%FS+1d)
0-24mA 0.1mA ±(0.5%FS+1d)
* Provides power DC 12V ±2V to the loop and measures current.
* FS: full scale
DC mV source
Range
Display resolution Accuracy
-199.9mV to
+199.9mV
0.1mV ±(0.25%FS+1d)
* Output measured load impedance should >1K ohm.
* FS: full scale.
Note:
the above specifications are tested under the environment RF field strength less
than 3V/M and frequency less than 30MHz.
MEASURING PROCEDURE
Current Source
• Insert the black test lead into the negative (COM) jack and the red test lead into the
positive (mV-mA) jack.
• Set the function switch to current (mA source) position.
• Press the 0-19.9mA button to set the 0.01mA display resolution (max display is
19.99mA) or press the 0-24mA button to set the 0.1mA display resolution.
• Adjust the calibration rotary control (CAL ADJUST) to generate the current output.
Current Measurement
• Insert the black test lead into the negative (COM) jack and the red test lead into the
positive (mV-mA) jack.
• Set the function switch to current (mA measure) position.
• Press the 0-19.9mA button to set the 0.01mA display resolution (max display is
19.99mA) or press the 0-24mA button to set the 0.1mA display resolution.