Fisher 4660 - Page 3

Type 4660
3
Table 2. Additional Specifications, Psig
BOURDON
TUBE
SET RANGE
SET POINT DP
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
Table 3. Additional Specifications, Bar
BOURDON
TUBE
SET RANGE
(1)
SET POINT DP
MIN
(MINIMUM ALLOWABLE DIFFERENCE
BETWEEN HIGH AND LOW SETTINGS)
TRIP-TO-RESET ZONE
TUBE
RATING
(1)
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 4. Maximum Allowable Process Pressure
(1)
BOURDONTUBE RATING
MAXIMUM ALLOWABLE EMERGENCY PROCESS PRESSURE
BOURDON TUBE RATING
Stainless Steel Bourdon Tubes N05500 (K-Monel) Bourdon Tubes (NACE)
Psig Bar
(2)
Psig Bar
(2)
Psig Bar
(2)
100
250
500
1000
6.9
17.2
34.5
69.0
200
500
1000
2000
13.8
34.2
69.0
138.0
200
500
1000
2000
13.8
34.2
69.0
138.0
1500
2500
5000
7500
10,000
103.4
172.4
344.8
517.2
689.5
3000
5000
7500
9375
N/A
206.8
344.8
517.2
646.3
N/A
3000
3750
6250
8250
11,000
206.8
258.6
430.9
568.8
758.5
MAXIMUM ALLOWABLE PROCESS PRESSURE TO INSURE SET POINT READJUSTABILITY
(3)
100
250
500
1000
6.9
17.2
34.5
69.0
200
500
750
1500
13.8
34.8
51.7
103.5
200
325
775
1300
13.8
22.3
53.4
89.7
1500
2500
5000
7500
10,000
103.4
172.4
344.8
517.2
689.5
2250
2500
7500
9375
N/A
155.1
172.4
517.2
646.3
N/A
1800
3300
5000
7500
10,000
124.0
227.5
344.8
517.2
689.5
1. Normal operating process pressures should not exceed the Bourdon tube rating.
2. Ratings indicated on Bourdon tube are in psig and kPa (1 bar = 100 kPa).
3. Values listed for the N05500 Bourdon tubes are for a 2% deviation from set point due to overpressure.