5.4 Advanced Settings for Each Channel
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5
Chapter 5 Setting Measurement Conditions
Measurement is possible when an 8996 Digital/Pulse Unit is connected. Set the
mode, chattering prevention, count mode (pulse/rotation rate), slope, and thresh-
old value. A range cannot be selected. It is fixed to 1000 Mcf.s. (measurable
range: 0 to 1000 M pulses) when count mode is selected, and automatically
selected in accordance with the setting for the number of pulses per rotation
when revolve mode is selected. If the scaling function is used, it is possible to
convert to the physical quantity for measurement.
Mode
Chattering prevention filter
Count mode (only settable when count is selected as the mode)
Pulse/rotation rate (only settable when revolve is selected as the mode)
Slope
Threshold (threshold value of the pulse detection level)
When Pulse is Selected (Totalized Pulse Measurement)
Selectable
Items
Explanations
Count
Totalizes and measures the number of pulses output from an integrating
wattmeter, flowmeter, etc.
Revolve
Measures the pulses output according to the rotation rate of a rotary
encoder, rotation meter, etc. The rotation rate is obtained by counting
the number of pulses input for a one-second period.
Selectable
Items
Explanations
ON
Enables use of the chattering prevention filter. Use this filter when con-
necting a device with a mechanical contact output.
OFF Disables use of the chattering prevention filter.
Selectable
Items
Explanations
Add Measures the totalization value from the start of measurement.
Instantaneous
Sets the instantaneous value for each recording interval. The instanta-
neous value is reset for each recording interval.
Selectable Items Measurable range
n = 1 to 1000 0 to 5000/n r/s f.s. (n is the number of pulses per rotation)
Selectable
Items
Explanations
↑ Totalizes the number of times the pulse transitions from LOW to HIGH.
↓ Totalizes the number of times the pulse transitions from HIGH to LOW.
Selectable
Items
Explanations
1 V Sets the threshold value to 1 V.
4 V Sets the threshold value to 4 V.
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