Rosemount 1151GP - Troubleshooting

Reference Manual
00809-0100-4360, Rev BA
August 2008
Rosemount 1151
www.rosemount.com
Section 5 Troubleshooting
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1
Smart Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-3
Analog Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-10
OVERVIEW This section is set up into two parts: Smart and Analog.
Table 5-1 on page 5-3 provides summarized troubleshooting suggestions for
the most common operating problems on Smart transmitters. Table 5-2 on
page 5-10 provides similar troubleshooting suggestions for analog
transmitters.
If you suspect a malfunction despite the absence of any diagnostic messages
on the communicator display, follow the procedures described here to verify
that transmitter hardware and process connections are in good working order.
Always deal with the most likely and easiest-to-check conditions first.
SAFETY MESSAGES
Warnings ( ) Procedures and instructions in this section that raise potential safety issues
are indicated by a warning symbol ( ). Refer to the following warning
messages before performing an operation preceded by this symbol.
• Isolate a failed transmitter from its pressure source as soon as possible. Pressure
that may be present could cause death or serious injury to personnel if the
transmitter is disassembled or ruptures under pressure.
• Explosions can cause death or serious injury. Do not remove the instrument cover
in explosive atmospheres when the circuit is alive.
• Explosions can cause death or serious injury. Do not break the housing seal in
explosive environments. Breaking the housing seal invalidates the explosion-proof
housing rating.
• Process leaks can cause death or serious injury. An incorrectly installed backup
ring can destroy the o-ring and cause process leaks. Install the backup ring using
the following procedure.
• Exposure to hazardous substances can cause death or serious injury. If a
hazardous substance is identified, a Material Safety Data Sheet (MSDS), required
by law to be available to people exposed to specific hazardous substances, must
be included with the returned goods.
• Explosions can cause death or serious injury. Do not disassemble the glass in the
meter cover in explosive atmospheres. Disassembling the glass in the meter
cover invalidates the explosion-proof meter rating.