Graco Reactor H-40 Operation page 30

c. Adjust hydraulic pressure control until
display shows desired fluid pressure.
+
If display pressure is greater than
desired pressure, reduce the hydraulic
pressure and trigger gun to reduce
pressure.
Check the pressure of each proportion-
ing pump using the component A and B
gauges. The pressures should be
approximately equal and must remain
fixed.
d. To display cycle count, press
To clear counter, press and hold
for 3 sec.
e. Press or
PSI
sure scale.
4. Change pressure imbalance setting
(optional)
The pressure imbalance function (status code
24, page 39) detects conditions that can cause
off-ratio spray, such as loss of feed pres-
sure/supply, pump seal failure, clogged fluid
inlet filter, or a fluid leak.
30
ti7731a ti7732a
.
to change pres-
BAR
Code 24 (pressure imbalance) is set to
an alarm as the default. To change to a
warning, see Reactor Repair-Parts
manual 312063.
-
The pressure imbalance default is factory-set
at 500 psi (3.5 MPa, 35 bar). For tighter ratio
error detection, select a lower value. For looser
detection or to avoid nuisance alarms, select a
higher value.
a. Turn main power switch OFF
b. Press and hold
main power switch ON
will read dP500 for psi or dP_35 for bar.
c. Press
pressure differential (100-999 in incre-
ments of 100 psi, or 7-70 in increments
of 7 bar). See T
Table 3: Available Pressure Imbalance Settings
PSI
100
200
300
400
*500
* Factory default setting.
d. Turn main power switch OFF
save changes.
or , then turn
PSI BAR
or to select desired
3.
ABLE
BAR PSI BAR
7 600
14 700
21 800
28 900
*35 999
Startup
.
. Display
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