Class1 3041-10X-00-CL1 - Sentry Governor - EXTERNAL - Manual (Page 6)

FORM-ENG-0018 REV A 05-27-03
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TECHNICAL DATA SHEET
PAGE
5 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
3. Overview of the Sentry Governor
The Sentry Governor (p/n 3045-101-00-CL1 vertical, p/n 3045-102-00-CL1 horizontal) is an SAE
J1939 Controller Area Network (CAN) device that controls engine speed using data
communications directly to the engine ECU or through with an analog control signal. By operating
on the J1939 network, the governor is able to monitor engine RPM and other pertinent data directly
from the engine ECU. Engine information is available directly so that NFPA required
instrumentation is delivered through a single unit saving panel space and delivering engine specific
warnings as determined by each engine manufacturer.
Control algorithms are optimized to take advantage of the J1939 CAN data to yield crisp and
accurate control of engine and subsequently pump speed and pressure output.
For engines that may not support the data link control, an analog output signal is available to
provide precise control of the engine speed and pressure.
The SENTRY saves pump panel space by incorporating easy to read numeric displays for Pump Intake
pressure, Pump Discharge pressure, and engine RPM in accordance with NFPA standards.
Figure 2. Sentry controls and indicators.