Fisher 4194B Series Instruction Manual page 5

Table 1-2. Available Configurations for 4194A, 4194B, and 4194C Series Controllers
TYPE
SERIES
(1)
NUMBER
4194A
4194AE
4194A
4194AM
4194AME
4194B
4194BE
4194BF
4194BFE
4194B
4194BM
4194BME
4194BFM
4194BFME
4194C
4194CE
4194CF
4194CFE
4194C
4194CM
4194CME
4194CFM
4194CFME
1. Reverse-acting constructions are designated by the suffix letter R added to the type number.
Table 1-3 Process Sensor (Capsular Element) Pressure Ratings and Material
CAPSULAR CAPSULAR
UNITS ELEMENT
RANGES
0 to 5 psid
U. S. 0 to 10 psid
Units 0 to 20 psid
0 to 30 psid
0 to 350 mbar
Metric 0 to 0.7 bar
Units 0 to 1.4 bar
0 to 2.0 bar
1. Span is adjustable between minimum shown and maximum of the capsular element operating range and can be positioned any where within this range. For example, if a 0 to 30
psid (0 to 2.0 bar) capsular element is used with a minimum span of 15 psid (1.0 bar), 15 to 30 psid (1.0 to 2.0 bar), or any value between the minimum and maximum values of the
operating range is possible.
2. Maximum difference between the two input supply pressures.
3. Capsular element may be pressured to this value without permanent zero shift or structural damage to controller components.
4. With travel stops set, capsular element may be pressured to this value without permanent zero shift or structural damage to controller components.
MODES
Proportional- Proportional-
Only Plus-Reset
(One-Mode (Two-Mode
Controllers) Controllers)
X –––
X –––
X –––
X –––
––– X
––– X
––– X
––– X
––– X
––– X
––– X
––– X
––– –––
––– –––
––– –––
––– –––
––– –––
––– –––
––– –––
––– –––
DIFFERENTIAL
SPAN
(1) (2)
Minimum Maximum
2.5 psid 5 psid
5.0 psid 10 psid
10.0 psid 20 psid
15.0 psid 30 psid
175 mbar 350 mbar
0.4 bar 0.7 bar
0.7 bar 1.4 bar
1.0 bar 2.0 bar
Table 1-4. Supply Pressure Data
Normal Operating
Output Signal Range
Supply Pressure
U. S. 3 to 15 psig
Units 6 to 30 psig
Metric 0.2 to 1.0 bar
Units 0.4 to 2.0 bar
1. If the pressure is exceeded, control stability may be impaired.
2. If the pressure is exceeded, damage to the controller may result.
4194A, B, and C Series
Proportional-
Internal
Plus-Reset-
Auto/Manual
Plus-Rate
Station
(Three-Mode
(suffix letter E)
Controllers)
––– –––
––– X
––– –––
––– X
––– –––
––– X
––– –––
––– X
––– –––
––– X
––– –––
––– X
X –––
X X
X –––
X X
X –––
X X
X –––
X X
STATIC PRESSURE
(3)
OPERATING RANGE
Minimum
Maximum
Inches of
Mercury
–10 6.5 psig
–20 13.5 psig
–30 27.0 psig
–30 40.5 psig
–350 mbar 455 mbar
–0.7 bar 0.9 bar
–1.0 bar 1.8 bar
–1.0 bar 2.7 bar
Maximum Pressure
To Prevent Internal
(1)
Part Damage
20 psig 40 psig
35 psig 40 psig
1.4 bar 2.8 bar
2.4 bar 2.8 bar
OPTIONS
Remote
Anti-Reset Windup
Set point
(suffix letter F)
(suffix letter M)
–––
–––
–––
–––
–––
–––
X
X
–––
–––
X
X
–––
–––
X
X
–––
–––
X
X
OPERATING OPERATING STANDARD STANDARD
(4)
LIMITS MATERIAL
7.5 psig
15.0 psig
30.0 psig
45.0 psig
Ni-Span-C Ni Span C
500 mbar
1.0 bar
2.1 bar
3.1 bar
(2)
–––
–––
X
X
–––
–––
–––
–––
X
X
X
X
–––
–––
–––
–––
X
X
X
X
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