Class1 3041-10X-00-CL1 - Sentry Governor - EXTERNAL - Manual (Page 18)

FORM-ENG-0018 REV A 05-27-03
607 NW 27th Ave
Ocala, FL 34475
Ph: 352-629-5020 or 1-800-533-3569
Fax : 352-629-2902 or 1-800-520-3473
TECHNICAL DATA SHEET
PAGE
17 OF 36
DATE 6/19/2014
PRODUCT GROUP THROTTLE CONTROL P/N 3045-101-00-CL1, 3045-102-00-CL1 REV 1.02
PRODUCT SENTRY PRESSURE GOVERNOR BY AMS
MESSAGE DESCRIPTION SENTRY RESPONSE OPERATOR ACTION
CRITICAL: Sentry
In Standby.
Check Water
Source
Pump discharge pressure has
been less than 30 PSI for longer
than the configured pressure
time-out.
SENTRY reduces engine speed
to the idle RPM and returns to
IDLE mode operation. Operator should verify water
supply and then re-enable
PRESSURE mode operation.
Unable to
maintain
discharge
pressure
The SENTRY has increased the
engine speed more than 300
RPM above the stasis RPM.
SENTRY maintains the engine
speed at the stasis RPM + 300.
Operator should verify water
supply to determine why the
desired discharge pressure
cannot be maintained.
Discharge
Pressure Has
Increased More
Than 50 PSI Since
Setting RPMs
The SENTRY is in THROTTLE
mode and the discharge pressure
has increased more than 50 PSI
over the previous stasis pressure.
SENTRY maintains THROTTLE
mode operation but limits the
engine RPM to maintain no
more than a 50 PSI differential
over the pressure detected
when the operator set the
desired engine RPM.
No operator action required.
Operator may continue to use
SENTRY in THROTTLE mode.
5 volt reference
error
The SENTRY is not detecting the
5 volt supply voltage required for
analog control (pin 1, connector
C). The SENTRY will not be able to
create the variable voltage
required for analog control
mode.
Operator should have the
SENTRY wiring confirmed.
Water Pressure >
10 PSI and Preset
Inhibit Enabled
The SENTRY has been
configured for RPM Preset inhibit.
The operator has pressed the
RPM preset button when 10 or
more PSI of discharge pressure
is detected.
The SENTRY will not increase
engine speed to the preset
RPM.
Operator should determine why
discharge pressure is detected
on the discharge side of the
pump.
Preset Is Not
Permitted With
Discharge PSI
Less Than 30
The SENTRY detects less than
30 PSI of discharge pressure. The Sentry will not allow preset
operation
The operator should manually
adjust discharge pressure to
above 30 PSI and then use the
desired preset.
Intake pressure is
too low for
POSITIVE
pressure
operation
The SENTRY had determined
that the pump was operating with
positive intake pressure and
currently the intake pressure is
below the configured threshold.
No change in operation.
Operator should verify the intake
pressure to ensure proper
pumping operation.