Class1 3041-10X-00-CL1 - Sentry Governor - EXTERNAL - Manual (Page 7)

FORM-ENG-0018 REV A 05-27-03
607 NW 27th Ave
Ocala, FL 34475
Ph: 352-629-5020 or 1-800-533-3569
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TECHNICAL DATA SHEET
PAGE
6 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
Figure 3. Twister controls and indicators.
3.1. Mode and Interlock indicators (Sentry)
Green icons indicate the status of the three (3) interlocks: throttle ready, pump engaged, and okay to pump.
The mode indicators consist of two (2) icons to show the governor’s current operating mode. The PRESSURE MODE
ICON (yellow) indicates the governor is operating in pressure mode and the RPM MODE ICON (blue) indicates the
governor is operating in throttle mode. When both icons are OFF the governor is in idle mode (standby).
3.2. Pump discharge pressure display (Sentry)
The pump discharge pressure display shows the pressure as determined by the discharge pressure sensor. By
default, this display only shows positive pressure in pounds per square inch (PSI), but it may be set up to display in
metric units (see section 6.4.1).
3.3. Pump intake pressure display (Sentry)
The pump intake pressure display shows the pressure as determined by the intake pressure sensor. By default, this
display shows positive pressure in pounds per square inch (PSI) and negative pressure (vacuum) in inches of
mercury (inHg), but it may be set up to display in metric units (see section 6.4.1).
3.4. Mode, Preset, and Idle buttons (Sentry)
The four (4) control buttons are color coded and labeled for easy identification.
3.4.1. IDLE
The IDLE switch (red) forces the governor to idle mode (standby). Pressing and holding this button for one
second while in rpm mode or pressure mode will cause the engine to ramp down to its idle position.
3.4.2. PRESET 1
The PRESET 1 button (orange) sets the governor to the configured preset 1 engine RPM while in throttle mode, or
preset pressure while in pressure mode.