July - Emerson FB1200 Instruction Manual

Emerson FB1200 Flow Computer Instruction Manual
D301782X012

July 2017

mode when the communication period is over. A serial connection to a remote 4088B MVS can
occur in low power mode.
The local display (HMI module) with Mobile SCADA 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
Base flow computer with integral multivariable DP and pressure
sensor and temperature measurement for a single meter run.
Historical configuration supports maximum of:



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:



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:



Additional Load Options:
Display and backlight active
Mobile SCADA
Mobile SCADA and display active
DO active (1 Hz, 50:50 duty cycle, no load)
Important
If you increase the number of history points/averages beyond any of the maximum limits in
Table 2-4, the flow computer cannot operate in low power mode and automatically runs in
standard power mode.
28
4 averages
12 Station 1 history points (Group 4)
10 User Periodic history points (Group 1)
4 averages
12 Station 1 history points (Group 4)
10 User Periodic history points (Group 1)
8 averages
24 Station 1 & Station 2 history points (Group 4/Group 5)
10 User Periodic history points (Group 1)
Power
Usage
(mW) at
6.1Vdc
47
45
82
292
315
337
1
Installation