36
Turning On/O Instrument
• The GND terminal of D/A output is connected to the ground (case metal part).
• The output impedance is 1 k
Ω
. Use connected instruments with input impedance of 10 M
Ω
or
more. (The output voltage is divided by the output resistance and the input impedance. For 1 M
Ω
,
it is lower by 0.1%.)
• External noises may be superimposed on an analog signals if cables are connected to the
instrument. If necessary, use a band-limiting lter, etc. in the connected instrument.
• The output voltage is updated with each current measurement sampling cycle.
• The recorded wave form will be in a staircase pattern (because the output circuit response is very
fast with respect to the update period).
• Output voltage is reduced to 1/10 (or increases by 10 times) even at the same resistance value
according to the change of range in auto-range. It is recommended to use the manual range.
• An output is set to 0 V when settings are changed (the range is changed, etc.) or when the
instrument is turned o. Moreover, an irregular voltage with an amplitude that is within the
maximum output voltage is output at the moment when the power switch on the rear is ipped to
the on position.
• Set the measurement speed to [FAST] and the self-calibration to [OFF] (execute manually) to
ensure that the D/A output response time is at its fastest.
See “3.3 Setting Measurement Speed” (p. 43) and “4.6 Maintaining Measurement Accuracy
(Self-Calibration Function)” (p. 60).
2.9 Turning On/O Instrument
Turn the instrument on or o using the power switch on the rear.
For more accurate measurement, warm up the instrument for 30 minutes or more after turning on
the instrument.
Power OFF ( )Power ON (I)
The self-test is executed automatically after startup (ROM/RAM check).
If an error is displayed on the LCD screen, the instrument is necessary to be repaired. Please
contact your authorized Hioki distributor or reseller.
See “Error display and solution” (p. 160).
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