Graco REACTOR H-VR Operation page 27

NOTE:
Check the pressure of each proportioning pump using
the component A and B gauges. The pressures should
be approximately equal and must remain fixed.
d. To display cycle count, press
NOTE:
To clear counter, press and hold
PSI
e. Press or
scale.
5.
Change pressure imbalance setting (optional)
The pressure imbalance function (status code 24, page
35) detects conditions that can cause off-ratio spray,
such as loss of feed pressure/supply, pump seal failure,
clogged fluid inlet filter, or a fluid leak.
NOTE:
Code 24 (pressure imbalance) is set to an alarm as the
default. To change to a warning, see H-VR Repair-Parts
manual 313540.
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
power switch ON
dP500 for psi or dP_35 for bar.
c. Press or
sure differential (100-999 in increments of 100
psi, or 7-70 in increments of 7 bar). See T
4.
313539F
.
for 3 sec.
BAR
to change pressure
.
PSI
or BAR , then turn main
. Display will read
to select desired pres-
Table 4: Available Pressure Imbalance Settings
PSI
100
200
300
400
*500
d. Turn main power switch OFF
changes.
ABLE
BAR PSI
7 600
14 700
21 800
28 900
*35 999
* Factory default setting.
Startup
BAR
42
49
56
63
69
to save
27