18
C
HECK
G
AS
S
UPPLY
E
RRORS
The
SMART-CAL 360
incorporates a pressure sensor that is used to alert the
operator if a problem is detected with the gas supply for each port. This is
indicated by a message on screen and a yellow light in the dome on the top of
the unit during calibration or bump testing. Follow these steps resolve this
issue:
1. If the check gas supply error was triggered for the 100% methane valve,
and you are using line gas, that valve should be setup to reflect that. If it
doesn
’t say “line gas”, refer to the valve configuration section in this
manual or Contact SENSIT Technologies for assistance.
2. Ensure that the gas supply for the valve that gives the error message is
turned on and that gas is flowing (applies to positive pressure regulators
only).
a. If you are not sure if gas is flowing, temporarily remove the hose
connection from the port on the back of the station, block the end of
the hose with your finger for a couple seconds, and release. You
should hear and/or feel a release of pressure.
3. Inspect the filter fitting on the valve that is giving the error and the fitting
on the hose that attaches to it. Make sure the connection isn
’t loose and
neither fitting has a visible crack. If no obvious issues are found,
temporarily replace the filter, either with a new one or from a valve
position that isn
’t being used:
a. Disconnect the tubing from the fitting and remove the current filter
using a 9/16” (15mm) wrench or socket.
b. Remove the O-ring and place the new one in the cavity as pictured.
c. Install the new filter (do not overtighten) and reconnect the tubing.
d. Continue the operation by pressing
“OK” on the screen. If replacing
the filter fixes the issue it will need to be replaced permanently.
4. If you verified there is no issue with the gas supply or filter and the error
was still shown, press “OK” on the screen. The calibration will attempt to
proceed.
a. If calibration completes successfully, the check gas supply message
was displayed when it shouldn’t have been. This could be because
the valve configuration is incorrect. Refer to that section in this
manual or contact SENSIT Technologies for assistance.
