25
3.
MASTER METER INLET PRESSURE SENSOR ERROR - Master Meter inlet and outlet pressure
sensors are located inside the Controller housing and this error will appear if any of the following
conditions exist:
a
. Pressure may be trapped by the quick disconnect if it is not properly seated and locked.
b
. The blower motors are still turning.
c.
Pressure still remains in the pressure lines from a previous test.
d.
The sensor failed.
Try briefly disconnecting the quick-disconnect connectors exposing them to atmospheric pressure. Wait
several minutes, then press the computer’s <ESC> key, reselect Configure a test and try to rezero the
pressure transducers. Try turning the Controller off, wait briefly, then turn it back on again. Reselect
Configure a test and see if the error message has gone away. The Master Meter’s pressure sensors are
checked only for a near zero reading in the absence of any moving air (blowers turned on). Do not rezero
the pressure transducers just after reconnecting the pressure lines or just after the running the blowers.
Refer to Pressure Transducer Rezeroing in the Help Directory for the correct procedure.
4.
FIELD METER INLET PRESSURE SENSOR ERROR - The Field Meter’s inlet and outlet pressure
sensors are located in the Field Meter Junction Box. See MASTER METER INLET PRESSURE
SENSOR ERROR above for possible causes for this error.
5.
MASTER METER OUTLET PRESSURE SENSOR ERROR - Master Meter inlet and outlet pressure
sensors are located inside the Controller housing. See MASTER METER INLET PRESSURE
SENSOR ERROR above for possible causes for this error.
6
. FIELD METER OUTLET PRESSURE SENSOR ERROR - The Field Meter’s inlet and outlet pressure
sensors are located in the Field Meter Junction Box. See MASTER METER INLET PRESSURE
SENSOR ERROR above for possible causes for this error.
Refer to Pressure Transducer Rezeroing in the Help Directory for the correct procedure.
7
. MASTER METER TEMPERATURE SENSOR ERROR - This error appears only for the selected
Master Meter used in the current test. Each Master Meter has its own temperature sensor,
accessed by removing the access cover from the Master Meter Junction Box. If the Meter Cable
is not connected to the Master Meter this message will appear.
8.
FIELD METER TEMPERATURE SENSOR ERROR - The temperature probe for the Field Meter
plugs into the Field Meter Junction Box. This error will appear if any of the following
conditions exist:
a
. Temperature Probe connector is damaged or not plugged in.
b.
Temperature Probe cable is damaged.
c.
Junction Box connector is damaged.
d.
Temperature Probe is damaged.
The lowest temperature the Prover will operate at is 20°F. A warning message will appear
when the temperature drops below 35 °F. An extended temperature mode has been added
for customers that require the ability to test meters below freezing. Roots Meters & Instruments
does not recommend operation at temperatures conducive to frost or moisture build-up in the
system. Contact your Dresser Roots Meters & Instruments representative for details if required.
