Emerson Process Management 7951 Ventilation Hood User Manual


 
Chapter 11 Configuring by using the menus
Page 11.7
FIXED
Input
data
Select
source,
value
and
status
LIVE
Input data
Analogue input 1
Analogue input 10
PRT
PT100 or
4-20mA
Un-referred temp
CALCULATE
TEMPERATURE
0%
100%
TEMPERATURE
REFERRAL
(Orifice only)
RESULTS
Temperature
(if limits are
exceeded)
ALARM
LIMITS
High Low
Step
Limits
FALLBACK
mode
value
Fallback
TEMPERATURE
OFFSET
Offset
Tpos
A
A
Figure 11.5 Calculating densitometer temperature
Select
value
and
status
RESULTS
Pressure
LIVE
Input data
Analogue input 1
Analogue input 10
CALCULATE
PRESSURE
LIMITS
FALLBACK
0%
100%
Low
High
(if limits are
exceeded)
ALARM
4-20 mA
Step value
mode
FIXED Input data
Values Limits
Fallbacks
Figure 11.6 Calculating prover or atmospheric pressure