Emerson FB1200 - Page 35

Emerson FB1200 Flow Computer Instruction Manual
D301782X012
March 2019
Installation 29
The local display (HMI module) with FBxWifi communications and WiFi uses additional power. You
can configure it in FBxConnect to shut down after a period of inactivity.
Table 2-4: Typical Power Usage – Low Power Mode at Room Temperature
Description
Power Usage (mW) at 6.1Vdc
Base flow computer with integral multivariable DP and
pressure sensor and temperature measurement for a single
meter run.
Historical configuration supports maximum of:
▪
4 averages
▪
12 Station 1 history points (Group 4)
▪
10 User Periodic history points (Group 1)
47
Base flow computer with integral static pressure sensor and
temperature measurement and a pulsed input for a single
meter run
Historical configuration supports maximum of:
▪
4 averages
▪
12 Station 1 history points (Group 4)
▪
10 User Periodic history points (Group 1)
45
Base flow computer with integral multivariable DP and
pressure sensor and temperature measurement,
communicating to remote 4088B-dual meter run (4088B
externally powered)
Historical configuration supports maximum of:
▪
8 averages
▪
24 Station 1 & Station 2 history points (Group 4/Group 5)
▪
10 User Periodic history points (Group 1)
82
Additional Load Options:
Display and backlight active
292
FBxWifi
315
FBxWifi and display active
337
DO active (1 Hz, 50:50 duty cycle, no load)
1
Important
If you increase the number of history points/averages beyond any of the maximum limits detailed in
Table 2-4, the flow computer cannot operate in low power mode and automatically runs in standard
power mode.