Delta P Plus Control Calibration - Donaldson Torit Delta P Plus Control Installation And Operation Manual

Donaldson Company, Inc.

Delta P Plus Control Calibration

The only user calibration is the zero adjustment of the display. Due to slight changes in electronic components over time or
pressure within the plant environment, the display may read something other than 0.0 while at rest. Use the following procedure to
recalibrate the operating system.
1. Turn power to the Delta P Plus Control ON for a minimum of 30-minutes to stabilize the operating temperature.
2. Disconnect the pressure tubing, either leaving it to atmosphere, or connecting the two barbed fittings together with a short
length of tubing.
3. Use the Menu key to select PAS.
4. Press SET, then use the arrow keys to display "4", press SET again.
5. Press the MENU key repeatedly until you reach P14.
6. Press SET, then use the arrow keys to display "1", press SET again.
7. After 10 seconds with no further button action, the display will return to reading the pressure.
8. Connect one section of tubing from the control enclosure's high-pressure port to the pressure tap on the dirty-air plenum.
Connect the remaining section of tubing from the control enclosure's low-pressure port to the pressure tap on the clean-air
plenum.
indicates closed
alarm relay
menu
increase
setpoint
16
Delta P Plus Display
3-digit dieplay
indicates closed
cleaning relay
set
downtime clean
decrease
setpoint