GE Baker Hughes Masoneilan SVI FF Installation And Operation Manual page 98

DD Registered with FOUNDATION
Fieldbus Foundation
Diagnostics
Air Supply
Action
Supply Pressure
Air Delivery - Single Acting Relay
Air Capacity (flow coefficient)
Air Consumption
Air Supply Failure
Loss of Input Signal
Output Pressure
98 |
BHGE
Table 14 System Connectivity
Yes, available through foundation website
Options include: Valve signature, ramp, friction, stroking speed, step response,
cumulative travel, cumulative cycles, and time of operation in near-closed
position. Some diagnostics require pressure sensor and ValVue software.
Table 15 Pneumatics Single Acting Standard Flow
Dry, oil-free, 5 micron filtered and regulated air and sweet natural gas
(See ISA S7.3)
Direct Acting
20 -150 psi max. (1.4 - 10.3 bar)
Regulate 5 - 10 psi (.345 bar - .69 bar) above actuator spring range. Do
not exceed actuator rating.
10.0 scf/min (280 L/min) at 30 psi (2.1 bar) supply
16.6 scf/min (470 L/min) at 60 psi (4.2 bar) supply
23.3 scf/min (660 L/min) at 90 psi (6.3 bar) supply
Loading
Venting
0.20 scf/min (5.7 L/min) at 30 psi (2.1 bar) supply
0.28 scf/min (8 L/min) at 60 psi (4.2 bar) supply
0.42 scf/min (12 L/min) at 90 psi (6.3 bar) supply
Single Acting Relay
On supply failure the actuator output drops. Some overshoot may occur
when air pressure returns after a period without air supply pressure.
Always set control set point to 0%, and put the process control system
in manual, for smooth recovery from air supply failure.
Output drops to low pressure.
0 - 150 psi (10.3 bar) max
C
v = 0.57
C
v = 0.53
© 2019 Baker Hughes, a GE company, LLC. All rights reserved.