Raven SCS 440 User Manual

2
Manual No. 016-0159-822 Rev E 7
INTRODUCTION
CALCULATE THE METER CAL VALUE
No calculation of the Meter Cal value is necessary, since the flow meter calibration value is stamped on the tag
attached to each flow meter. Locate this number and write it down for future reference when programming the
console.
CALCULATE THE VALVE CAL VALUE
The Valve Cal figure is used to control the response time of the control valve motor to the change in the vehicle’s
speed. After operating the system, this number may be refined. The initial recommended control valve values are:
• C-SD (standard valve) = 2123
• C-FC (fast-close valve) = 743
• C-F (fast valve) = 743
• C-P (PWM valve) = 43
• C-PC (PWM close valve) = 43
FIGURE 3. Valve Calibration Definitions
Digit Description Range Range Definition
Valve Backlash
Controls the time of the first correction
pulse after a change in correction direction
is detected (INC to DEC, or DEC to INC)
1 - 9
1 = Short Pulse
9 = Long Pulse
Valve Speed
Controls the response time of the control
valve motor. Caution: Running the control
valve too fast will cause the system to
oscillate.
Refer to
specific valve
Refer to specific
valve
C-SD Valve 1 - 9
1 = Slow
9 = Fast
C-F and C-FC Valve 0 - 9
0 = Fast
9 = Slow
C-P and C-PC Valve 0 - 9
0 = Slow
9 = Fast
C-SD Valve
C-F or C-FC
C-P or C-PC

Raven SCS 440 Specifications

General

Brand	Raven
Model	SCS 440
Category	Recording Equipment
Language	English