Graco 313539F Change pressure imbalance setting optional, Available Pressure Imbalance Settings

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 for 3 sec.

e. Press PSI or BAR to change pressure

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 PSI	or BAR	, then turn main
	power switch ON	. Display will read

dP500 for psi or dP_35 for bar.

c.Press or to select desired pres- sure differential (100-999 in increments of 100 psi, or 7-70 in increments of 7 bar). See TABLE 4.

Startup

Table 4: Available Pressure Imbalance Settings

PSI	BAR	PSI	BAR
100	7	600	42
200	14	700	49
300	21	800	56
400	28	900	63
*500	*35	999	69

* Factory default setting.
d. Turn main power switch OFF	to save
changes.

313539F 27