2-7
IM DL850E-01EN
ACCEL (Only when measuring acceleration)
To measure acceleration with the 701275 (ACCL/VOLT), set the input coupling to ACCEL.
OFF (For the 16-CH Voltage Input Module and 16-CH Temperature/Voltage Input Module)
Set the coupling to OFF to not include in the measurement the sub channels selected on the 720220 (16CH
VOLT) or 720221 (16CH TEMP/VOLT).
Probe Attenuation and Current-to-Voltage Conversion Ratio
(Probe)
In voltage (current) measurement, a probe is used to connect the circuit under measurement to a signal input
terminal. Using a probe has the following advantages.
• Prevents the disturbance of the voltage and current of the circuit being measured.
• Allows signals to be applied with no distortion.
• Expands the voltage (current) range that the DL850E/DL850EV can measure.
When you use a probe, to read the measurement voltage (current) correctly
, you must set the attenuation on the
DL850E/DL850EV to match the probe attenuation or current-to-voltage conversion ratio.
Set the attenuation ratio as indicated below for each probe. (The probes are optional accessories that are sold
separately.)
Probe Type Attenuation
Isolated probe (700929) 10:1
Isolated probe (701947) 100:1
Current probe (701933) 10 A:1 V
Current probes (701930, 701931) 100 A:1 V
Differential probe (700924) 1000:1, 100:1
10:1 passive probe (701940) 10:1
The attenuation settings available on the DL850E/DL850EV are 1:1, 10:1, 100:1, 1000:1, 10 A:1 V
1
, and 100 A:1
V
2
. If you use a probe other than one of the separately sold optional accessories provided by Yokogawa, set the
attenuation ratio in accordance with that probe.
1 Output voltage rate: 0.1 V/A
2 Output voltage rate: 0.01 V/A
Use a probe that is appropriate for the input capacitance of the module that you are using it with. The
capacitance cannot be adjusted for an inappropriate probe.
2 Vertical Axis
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