View menu, Relay energized relay de-energized, Menu functions – GF Signet 8550 ProcessPro Flow Transmitter User Manual
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Signet 8550-3 Flow Transmitter
Flow1: 6.25 GPM
Flow2: 9.75 GPM
ENTER
Signet Flow
Transmitter
VIEW menu
• During normal operation, ProcessPro displays the VIEW menu.
• When editing the CALIBRATE or OPTIONS menus, ProcessPro will return to the VIEW menu if no activity
occurs for 10 minutes.
• To select a VIEW display, press the ▲ or ▼ arrow keys. The selections will scroll in a continuous loop.
• Changing the VIEW display does not interrupt system operations.
• No key code is necessary to change display selection.
• Output settings cannot be edited from the VIEW menu.
Hysteresis
Time
Low Setpoint
Process
Relay energized
Relay de-energized
Hysteresis
Time
High Setpoint
Process
3.3 Open Collector Output
The Open collector output can be used as a switch that responds
when the fl ow rate moves above or below a setpoint, or it can be
used to generate a pulse that is relative to the fl ow volume or to the
fl ow rate.
• Low
Output energizes when the fl ow rate is less than the setpoint.
The output will de-energize when the fl ow rate moves above the
setpoint plus the hysteresis value.
• High
Output energizes when the fl ow rate is greater than the setpoint.
The output will de-energize when the fl ow rate drops below the
setpoint plus the hysteresis value.
• Frequency
Output is a pulse stream that is based on the input fl ow sensor
signal. Set for 1 (input frequency = output frequency). Set for even
numbers (2, 4, 6, 8, . . . . 254 maximum) to scale output frequency.
• Pulse
Output is a pulse based on the volume of fl uid that passes the
sensor. Set any value from 0.0001 to 99999.
The output may be disabled (Off) if not used.
View Menu
Display
Description
Flow1: 123.4 GPM
Flow2: 567.8 GPM
Monitor the fl ow rate of Channel 1 and Channel 2 simultaneously.
This is the permanent view display.
Delta Flow:
10.5 GPM
Monitor the delta fl ow rate (Channel 1 rate - channel 2 rate = Delta Flow)
This is a permanent display.
All of the displays below are temporary. After 10 minutes the display returns to the permanent display.
Tot1: 1234567.8
Tot2: 123456.78
Monitor channel 1 and channel 2 Resettable Totalizers. Press the ► key to reset
the totalizer. If Reset is locked, you must enter Key Code. Lock or Unlock function
is in OPTIONS menu
Perm1: 1234567.8
Gallons
Monitor channel 1 Permanent Totalizer value.
Perm2: 123456.78
Gallons
Monitor channel 2 Permanent Totalizer value.
Loop 1 Output:
12.00 mA
Monitor the 4 to 20 mA output for Loop 1 and 2.
Loop 2 Output:
12.00 mA
Last CAL:
02-10-09
Monitor date for scheduled maintenance or date of last calibration.
(See description in Calibrate Menu.)
4. Menu
Functions