7.2
Analog Output Specifications
98
7.2 Analog Output Specifications
Output voltage 0 V to 3.1 V DC (full scale)
Resolution 12-bit (approx. 1 mV)
Output resistance 1 k
Output Resistance measured value (display count value)
Fixed at 3.1 V at OF or measurement fault.
Fixed at 0 V for negative values.
Output rate 0 counts to 31000 counts 0 V to 3.1 V
Output accuracy Resistance measurement accuracy ±0.2% of full scale.
(temperature coefficient ±0.02% of full scale/°C)
Response time Resistance measurement response time + sampling time + 1 ms
GND terminal(black)
Output terminal(red)
1kΩ
5V
GND (earth)
• The instrument has an output impedance of 1 k. Connected devices must
have an input impedance of at least 10 M
. (The output voltage is divided by
the output resistance and input impedance, resulting in a reduction of 0.1% for
1 M
.)
• Connecting a cable may result in external noise. Implement a bandpass filter
or other measures as needed in the connected device.
• The analog output's GND pin is grounded (to the metallic part of the case).
• The output voltage is updated at the resistance measurement sampling tim-
ing.
• Recorded waveforms are stepped (since the output circuit response is
extremely fast compared to the update period).
• When using auto-ranging, the same resistance value may result in 1/10 (or 10
times) the output voltage due to range switching. It is recommend to set the
range manually.
• Output is set to 0 V when changing settings (range switching, etc.) and when
the instrument is turned off.