Removing/Replacing The Hmi Module - Emerson FB1200 Instruction Manual

Emerson FB1200 Flow Computer Instruction Manual
D301782X012
July 2017
5.4

Removing/Replacing the HMI Module

You do not need to power down the unit to replace the HMI module.
DANGER
Ensure the flow computer is in a non-hazardous area. Never remove/replace the HMI module in a
hazardous area.
Important
The HMI module includes the WiFi transceiver; once you remove the HMI module; WiFi
communication with the flow computer ceases.
1.
2.
3.
Figure 5-3: Captive Fastening Screws
4. Grasp the HMI module and remove it by gently pulling it straight out.
5. To replace the HMI module, line up the printed circuit board (PCB) with the slot on the back
and gently press it back on. Tighten the four captive fastening screws.
6. Replace the front end cap. Screw the end cap clockwise (eight full turns) until it is tightly
sealed to the enclosure. Replace the retaining clamp, if applicable (see Section 2.6.1).
80
Remove the retaining clamp from the front end cap (if present). (See Section 2.6.1.)
Unscrew the front end cap.
Loosen the four captive fastening screws on the HMI module.
Service and Troubleshooting