Programing Custom Valve Curve
The new Liquid Nitrogen (LN2) control ball valve allows for using custom valve curves.
This allow for non linear valve opening. We have developed the curve recommended
based on cooling input into chamber. To install the custom valve curve follow the
procedure bellow.
The procedure is for the Proximity valve positioner 275ER-D5000 and 1” Ln2 C44 ball
valves used on VTC-9 and above. Please follow procedure closely if setting entered
wrong it may cause valve operation to not follow new curve.
Authorization and Copyright of this document is
controlled by Hanse Environmental Inc.
50
Positioner
Positioner
Custom
Number
mA % Valve
Open
% F4
4
0
0%
0
5
15%
6.25%
1
6
20%
12.5%
2
7
22.5% 18.75%
3
8
25%
25%
4
9
27.5% 31.25%
5
10
30%
37.5%
6
11
32.5% 43.75%
7
12
35%
50%
8
13
37.5% 56.25%
9
14
40%
62.5%
10
15
50% 68.75%
11
16
60%
75%
12
17
70% 81.25%
13
18
80%
87.5%
14
19
90% 93.75%
15
20
100%
100%
0
0.25
0.5
0.75
1
4
5
6
7
8
9
10 11
12 13
14 15
16 17
18
19 20
% Valve Open
% F4
Summary of Contents for VTC Series
Page 1: ...Operation and Maintenance Instructions for Hanse Environmental Inc VTC Series Rev H 2018 ...
Page 42: ...Authorization and Copyright of this document is controlled by Hanse Environmental Inc 42 ...
Page 56: ...Authorization and Copyright of this document is controlled by Hanse Environmental Inc 56 ...
Page 57: ...Authorization and Copyright of this document is controlled by Hanse Environmental Inc 57 ...
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