Reference Manual
00809-0100-4360, Rev BA
August 2008
Rosemount 1151
5-14
Removing the Sensor from the Electrical Housing
• Disconnect the power source from the transmitter.
• Unscrew the cover on the terminal side of the transmitter.
• Remove the screws and unplug the electronics; see Figure 5-5.
• Loosen the lock nut.
• Remove the standoffs.
1. Unscrew the sensing module from the electronics housing, being careful
not to damage the sensor leads. Carefully pull the header assembly
board through the hole. The threaded connection has a sealing
compound on it and must be broken loose.
The sensing module is a welded assembly and cannot be further
disassembled.
Figure 5-5. Removal of
Electronics.
Sensor Module Checkout
The sensor module is not field repairable and must be replaced if found to be
defective. If no obvious defect is observed (such as a punctured isolating
diaphragm or fill fluid loss), the sensor module can be checked as follows.
Do not damage the isolating diaphragms when unscrewing the sensor module.
Damaging the isolating diaphragms can inhibit transmitter performance.
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