4660 Pressure Pilot
Instruction Manual
Form 5200
September 2004
3
Table 2. Additional Specifications, Bar
BOURDON
TUBE
SET RANGE
(1)
SET POINT
D
P
MIN
(MINIMUM ALLOWABLE DIFFERENCE
BETWEEN HIGH AND LOW SETTINGS)
TRIP-TO-RESET ZONE
TUBE
RATING
SET RANGE
( )
Single High-
Low Unit
High-Only/
Low-Only Pair
TRIP TO RESET ZONE
6.9
17.2
34.5
69.0
0.3 to 6.6
0.6 to 16.6
1.1 to 33.4
2.1 to 67.9
0.7
1.7
3.5
6.9
0.3
0.6
1.1
2.1
0.2
0.3
0.6
1.1
103.4
172.4
344.8
517.2
689.5
(2)
3.2 to 100.2
5.2 to 167.2
10.4 to 334.4
15.6 to 501.5
20.7 to 668.8
10.4
17.3
34.5
51.8
103.4
3.2
5.2
10.4
15.6
20.7
1.6
2.6
5.2
7.8
10.3
1. Rating indicated on Bourdon tube and set range on front panel are in kPa (1 bar = 100 kPa).
2. Available in N05500 (K-Monel) only, for NACE
Table 3. Additional Specifications, Psig
BOURDON
TUBE
SET RANGE
SET POINT
D
P
MIN
(MINIMUM ALLOWABLE DIFFERENCE
BETWEEN HIGH AND LOW SETTINGS)
TRIP-TO-RESET ZONE
TUBE
RATING
SET RANGE
Single High-
Low Unit
High-Only/
Low-Only Pair
TRIP TO RESET ZONE
100
250
500
1000
3 to 97
8 to 242
15 to 485
30 to 970
10
25
50
100
3.0
7.5
15.0
30.0
1.5
3.8
7.5
15.0
1500
2500
5000
7500
10,000
(1)
45 to 1455
75 to 2425
150 to 4850
225 to 7275
300 to 9700
150
250
750
1025
1500
45
75
150
225
300
23
38
75
113
150
1. Available in N05500 (K-Monel) only, for NACE
No person may install, operate or maintain a Type
4660 high-low pressure pilot without first
D
being
fully trained and qualified in valve, actuator and
accessory installation, operation and maintenance,
and
D
carefully reading and understanding the
contents of this manual. If you have any questions
about these instructions, contact your Fisher sales
office.
Description
The Type 4660 high-low pressure pilot (figure 1)
activates emergency shutdown systems for
flowlines, production vessels, and compressors. The
pilot can be used with either a single or dual set
point capability to maintain full output pressure when
the process is operating within the set point range.
The primary switching mechanism in this pilot is a
block-and-bleed relay assembly.
Educational Services
For information on available courses for the Type
4660 high-low pressure pilot, as well as a variety of
other products, contact:
Emerson Process Management
Educational Services, Registration
P.O. Box 190; 301 S. 1st Ave.
Marshalltown, IA 50158 - 2823
Phone: 800 - 338 - 8158 or
Phone: 641 - 754 - 3771
FAX: 641 - 754 - 3431
e-mail: [email protected]
Specifications
Specifications for the Type 4660 high-low pressure
pilot are listed in table 1.
