Troubleshooting; General; Led Indications; The Two Leds On The Instrument Give Information About The Status Of The Instrument. Check Chapter 3.7, "Micro-Switch Use For Reading/Changing Control Mode - Parker X-Flow Operational Instructions

4

Troubleshooting

4.1 General

For a correct analysis of the proper operation of a flow/pressure meter or controller it is recommended
to remove the unit from the process line and check it without applying fluid supply pressure. In case the
unit is dirty, this can be ascertained immediately by loosening the compression type couplings and, if
applicable the flange on the inlet side.
Energizing or de-energizing of the instrument of the instrument indicates whether there is an electronic
failure.
After that, fluid pressure is to be applied in order to check behaviour.
If there should be suspicion of leakage in case of a gas unit, do not check for bubbles with a leak
detection liquid under the cover as this may lead to a short-circuit in the sensor or p.c.board.

4.2 LED indications

4.3 The two LEDs on the instrument give information about the status of the
instrument. Check chapter 3.7, "Micro-switch use for reading/changing control
mode
4.3.1 Read control mode
For switching between different functions in use of a digital controller several modes are available.
More information about the available control modes can be found at parameter "Control mode".
Pressing the switch 2x briefly with intervals of max. 1 second in normal running/operation mode will
trigger the instrument to "show" its control mode. For indication of the control mode number the green
LED will flash the amount of tens and the red LED the amount of units in the number. The flashes are
called "count-flashes" and have a pattern of 0.5 sec. on, 0.5 sec. off. The control mode numbers can
be found at parameter "control mode".
Green
amount of count
flashes (0...2)
off
Value zero will be indicated by a period of 1 sec. off (0.5 sec. off + 0.5 sec off).
!
4.3.2 Change control mode:
For switching between different functions in use of a digital controller several modes are available.
More information about the available control modes can be found at parameter "Control mode".
Pressing the switch 4x briefly with intervals of max. 1 second in normal running/operation mode will
trigger the instrument to "change" its control mode.
Step
" for detailed info.
Page 35
View current control mode (press switch 2x briefly)
LED's Time
Red
Off 0 ... 2 sec. maximum
amount of count 0 ... 2 sec. maximum
flashes (0...9)
View current control mode (press switch 2x briefly)
Action Indicatio
n
Green Red
Green Off
amount
of count
flashes
(0...2)
off amount
of count
flashes
(0...9)
Instruction manual Parker X-Flow
Indication
tens in control mode number
units in control mode number
Time Handling
0 ... 2 tens in control mode number
sec.
maximu
m
0 ... 2 units in control mode number
sec.
maximu
m
FM-1407 Rev - 7/18