Model Code Description Appendix D: Model Code Explanation
66
Valve Orifice Size (R)
The 640B Series controller is available with one of seven (7) valve orifice sizes, defined by a
single entry in the model code.
Valve Orifice Size Selection
Valve Orifice
Number
Valve Orifice
Size
Order
Code
A 50 A
1 200 1
2 1000 2
3 5000 3
4 10,000 4
5 20,000 5
6 50,000 6
Table 16: Valve Orifice Size Selection
Trip Point (S )
The 640B Series controller is built with trip points designated by a single number in the model
code.
Trip Points
Order Code
2
Table 17: Trip Point Model Code Entry
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