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3610J and 3620J Positioners
September 2017
Table 12. Split‐Ranging Capabilities
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
listed.
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.
Figure 16. Input Signal Versus Valve Rotation
DIRECT
REVERSE
PERCENT OF RATED INPUT SPAN
A2264‐2
30
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
CAM
B
CAM
A
CAM
C
(1)
3610J Positioners
Psig
3 to 9
9 to 15
3 to 7
7 to 11
11 to 15
(1)
3620J Positioners
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
Figure 17. Flow Characteristics for the Various Cams
When Used With an Equal Percentage Valve
Characteristic, Push‐Down‐to‐Open Valve
DIRECT
REVERSE
33A4959‐A
A1581‐3
Instruction Manual
0.4 to 2.0 Bar or 6 to 30 Psig Input Signal
Bar
0.4 to 1.2
6 to 18
1.2 to 2.0
18 to 30
0.4 to 0.9
6 to 14
0.9 to 1.5
14 to 22
1.5 to 2.0
22 to 30
Emerson sales office
for input signal ranges not
PUSH DOWN TO OPEN
CAM
B
CAM
A
PERCENT OF RATED INPUT SPAN
D200149X012
Psig
CAM
C
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