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APPENDIX 2
CALCULATING "VALVE CAL"
1) After operating the system, you may desire to refine this number. See
definitions below:
Valve Backlash Digit -- Controls the time of the first correction pulse
after a change in correction direction is
detected. (INC to DEC -or- DEC to INC).
Range: 1 to 9 1-Short Pulse, 9-Long Pulse
Valve Speed Digit -- Controls response time of Control Valve motor.
CAUTION: Running the Control Valve too fast will
cause the system to oscillate.
C-P/C-Sd Valve Control Range: 0 to 9 0-Slow, 9-Fast
C-F/C-FC Valve Control Range: 0 to 9 0-Fast, 9-Slow
Brake Point Digit -- Sets the percent away from target rate at which
the Control Valve motor begins braking, so as
not to overshoot the desired rate.
Range: 0 to 9 0 = 5%, 1 = 10%, 9 = 90%
Dead-Band Digit -- Allowable difference between target and actual
application rate, where rate correction is not
performed.
Range: 1 to 9 1 = 1%, 9 = 9%
MANUFACTURER VALVE CAL NUMBER COIL FREQUENCY
Brand 136 90-115
Compact 145 100
Energy 136 90-115
Gresen 125 50
Hydroforce 136 100-150
Rexroth 73 180-200
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