Sierra Monitor Corporation PF2A7H - Manual (Page 11)

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Error Display and Troubleshooting
This function displays error location and nature. When a problem
or an error occurs, take the following actions.
Flow display check
Check integrated flow when instantaneous flow is selected
Integrated flow is displayed only during button is pressed.
(Returns to instantaneous flow when releasing button.)
The unit of integrated flow is changed as m 3
m 3 10 3 if press button while pressing button.
Check instantaneous flow when integrated flow is selected
Instantaneous flow is displayed only during button is pressed.
(Returns to integrated flow when releasing button.)
Switching the unit of integrated flow display
Set the integrated flow display unit while integrated flow is
selected.
1. Unit flickers by pressing button.
2. The unit is changed as m 3 m 3 10 3 by
button.
3. Unit stops flickering when deciding the unit by button.
The unit stops flickering unless pressing button for 5 sec.,
and complete switching the flow display unit. Integrated flow
display unit is not switched.
Clear of Integrated Value
Integrated value is cleared by pressing button pressing
button for 5sec.
Other Functions
Initialize the Set Value
All the setting can be initialized to values at shipment.
Press button and button for longer than 2 sec. during initial
setting mode F_0 . Press button after F_00 appears.
Setting is not initialized but switched to F_0 if pressing
button. See below for setting at shipment.
Display setting : Instantaneous flow ( d_1)
Unit setting : /min ( U_1)
Switch spec. : Instantaneous switch output ( oU1_0 )
Output mode : Reverse output ( oU1_n )
Flow setting value : Instantaneous flow Intermediate value of
full-range / Integrated flow 0
Key lock mode : Unlocked ( unL)
Flow conversion condition : 20
, 101.3kPa,
65%RH [ ANR] ( Anr)
To reset display of Error 1 and 3, press and button simultaneously.
LED display Error Nature Troubleshooting
A current exceeding 80mA
is flowing to OUT1. Turn the power off. Check
the load and wiring of OUT1.
Set data has been changed
due to some reason.
Reset all the data.
A fluid flow is higher than
rated rate. Reduce the flow down to
the rated rate.