System Operation
312776K
53
Mix Manifold Valve Settings
To open dose or purge valves, turn hex nut (E)
counter-
clockwise
. To close, turn
clockwise.
F
IG
. 59.
Table 6: Dynamic Dosing Troubleshooting Guide
(for complete system troubleshooting, see Table 11 beginning on page 83)
Warning/Alarm Message
Solution
B Pressure Too Low (see F
IG
. 56)
•
Increase B pressure.
•
Clean restrictor or use a larger size.
•
Verify B valve is opening properly.
B Pressure Too High
•
Increase A pressure or decrease B pressure.
•
Use a smaller restrictor.
Off Ratio Low
•
Increase A pressure or decrease B pressure.
•
Use a smaller restrictor.
Off Ratio High
•
Increase B pressure.
•
Clean restrictor or use a larger size.
•
Verify B valve is opening properly.
F
IG
. 59. Valve Adjustment
E
TI11581a
Table 7: Mix Manifold Valve Settings
Valve
Setting
Function
Dose
(F
IG
. 59)
Hex nut (E) 1-1/4 turns out
from fully closed
Limits maximum fluid flow rate into integrator
and minimizes valve response time.
Purge
(F
IG
. 59)
Hex nut (E) 1-1/4 turns out
from fully closed
Limits maximum fluid flow rate into integrator
and minimizes valve response time.
Shutoff
(SVA and
SVB, F
. 67)
Fully open during Run/Mix
operation
Closes component A and B ports to integrator
during ratio check or meter calibration. Open
ports during Run/Mix operation.
Sampling
(RVA and
RVB, F
Fully closed during Run/Mix
operation
Open to dispense component A and B while
calibrating meters. Do not open sampling
valves unless fluid shutoff valves are closed.