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Instruction Manual
June 2008
Split
Two-way
Three-way
Split
Two-way
Three-way
1. This table is only valid for the standard valve rotation or travel and range spring combinations listed in tables 8 through 11. Contact your Emerson Process Management sales office
or the factory for input signal ranges not listed.
DIRECT
REVERSE
PERCENT OF RATED INPUT SPAN
A2264-2 / IL
Figure 16. Input Signal Versus Valve Rotation
PUSH DOWN TO OPEN
DIRECT
REVERSE
33A4959-A
PERCENT OF RATED INPUT SPAN
A1581-3 / IL
Figure 17. Flow Characteristics for the Various Cams When
Used With an Equal Percentage Valve Characteristic,
Push-Down-to-Open Valve
Table 12. Split-Ranging Capabilities
3610J Series Positioners
0.2 to 1.0 Bar or 3 to 15 Psig Input Signal
Bar
0.2 to 0.6
0.6 to 1.0
0.2 to 0.5
0.5 to 0.7
0.7 to 1.0
3620J Series Positioners
CAM
B
CAM
A
CAM
C
CAM
B
CAM
A
CAM
C
3610J and 3620J Positioners
(1)
Psig
3 to 9
9 to 15
3 to 7
7 to 11
11 to 15
(1)
4 to 20 Milliampere DC Input Signal
4 to 12
12 to 20
4 to 9.3
9.3 to 14.7
14.7 to 20
DIRECT
REVERSE
33A4960-A
A1582-3 / IL
Figure 18. Flow Characteristics for the Various Cams When
Used With an Equal Percentage Valve Characteristic
Characterized Cams for 3610J, 3610JP,
3620J, and 3620JP Positioners
3610J, 3610JP, 3620J, and 3620JP positioners are
available with any one of three cams: a linear cam
(cam A) and two characterized cams (cams B
and C).
When the linear cam is used, there is a linear
relationship between an incremental input signal
change and the resultant valve rotation. The flow
characteristic is that of the control valve.
When either of the characterized cams are used, the
relationship between an incremental input signal
change and the valve rotation is changed. Curves
illustrating the relationship between the input signal
and the valve rotation, and between the input signal
and the flow characteristic of an equal percentage
valve, are shown in figures 16, 17, and 18.
0.4 to 2.0 Bar or 6 to 30 Psig Input Signal
Bar
0.4 to 1.2
1.2 to 2.0
18 to 30
0.4 to 0.9
0.9 to 1.5
14 to 22
1.5 to 2.0
22 to 30
PUSH DOWN TO CLOSE
CAM
C
CAM
A
CAM
B
PERCENT OF RATED INPUT SPAN
Push-Down-to-Close Valve
Psig
6 to 18
6 to 14
25
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