14
Calibration and Fine Adjustment Mode
Fine adjustment mode permits adjustment of the displayed pressure and analog output within
2.5% of the detected pressure. The adjustment is applied linearly over the entire pressure
range. Enter fine adjustment mode via the advanced settings menu (see “Advanced Settings”)
when a known air pressure is applied. Use the “UP” and “DOWN” buttons to adjust the display
pressure until it
matches the known pressure. Press “SET” to save the adjustment.
FAQ
Q: What is the difference between the rated pressure range and the set pressure range?
DPS series switches are designed to operate between 0 and 145 psi. However, it is possible to
configure some settings between -14.5 and 145 psi.
Q: What is system hysteresis and how can it be adjusted?
System hysteresis is a stored value used to prevent output chattering. The system hysteresis
value controls how digital outputs behave when in point set mode or window comparator mode.
For more information on digital output modes, see the “Digital Output Modes” section of this
document. System hysteresis can be set between 1 and 8 decimal places in the advanced
settings menu (see “Advanced Settings”). For example, when display units are set to psi,
selecting a value of 5 will set system hysteresis to 0.5psi.
Q: What is the difference between the MFD DPS switches and the DG-06 or DG-08?
DPS Series switches and MFD digital gauges (DG-06 and DG-08) all display system pressure
but DPS switches are powered externally, offer programmable digital outputs, and an analog
output or copy function. For an economical digital pressure display, choose a DG-06 or DG-08.
For programmable output control and integration with a machine controller, choose a DPS
digital pressure switch.
