Electronics Test Points - Emerson Rosemount 8800D Series Reference Manual

Reference Manual
00809-0400-4004
Table 8-3: Advisory
Display ProLink III
SIGnAL^^ Flow Simulation Mode
SIMUL
SEnSOr^^ Flow Signal Injection
OFFLN
ALErt ^^^ Process Temperature Out of
Range
PTOSL
(freq.) Pulse Output Fixed
PULSE
8.9

Electronics test points

As shown in the following figure, there are several test points located on the electronics.
Figure 8-1: Electronics test points
A. Ground
B. Test frequency input
C. Test point 1
The electronics are capable of internally generating a flow signal that can be used to
simulate a sensor signal to perform electronics verification with a handheld communicator
or AMS Device Manager interface. The simulated signal amplitude is based on the
transmitter required minimum process density. The signal being simulated can be one of
several profiles – a simulated signal of constant frequency or a simulated signal
representative of a ramping flow rate. The electronics verification procedure is described
Reference Manual
Description
The flow signal is being produced from a signal generator internal
to the Vortex transmitter. The flow value reported by the
transmitter is NOT the process flow value.
• This is informational only.
The flow signal is being injected into the transmitter from an
external signal generator. The flow value reported by the
transmitter is NOT the process flow value.
• This is informational only.
The Process Temperature is beyond the defined sensor limits of –
58 °F to +842 °F (–50 °C to +450 °C).
• This is informational only.
The transmitter has been commanded to output a fixed pulse
output frequency. The pulse output does not reflect the process
flow.
• Exit the Pulse Loop test.
A
Troubleshooting
October 2021
B
C
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