Sierra RedyCompact Meter, Instruction Manual, Page: 55 / 73

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Error Possible causes Measures
Unit, backlight or display
unexpectedly switched off Battery empty Replace battery
Menu settings incorrect
Adjust the auto off menu’s
Unit always enters service
mode when switched on Firmware damaged Perform a firmware upgrade as described in this
manual. If the problem remains please consult
your sales partner.
Out of Range Wrong unit selection Select a unit that fits better to the current flow.
Forgot Password Contact the factory or distributor Please consult your sales partner
Totalizer shows 9999999 Overflow totalizer units Select a different unit (try m3n or kg)
Disfunction alarm contacts An external magnet can unintentionally
influence the alarm contacts Please remove the interfering magnet
Touch display does not
work properly Calibration issue with touch screen Apply calibration procedure for touch screen.
See
4.12.2.7 Recalibrate
If you need any support please
contact Sierra’ Customer Service team at
https://www.sierrainstruments.com/techsupport/techsupport.html .
6.10.
Pressure Loss
The following figures show examples of the pressure drop of a RedyCompact (measuring
instrument only, not the valve)
Please note that the curves below are as an indicator only and based on atmopheric outlet
pressure. Especially when the outlet is under vacuum, the pressure drop can be higher.
Heavier gasses like Argon will greate more pressure drop, lighter gasses like helium will create
less pressure drop.