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         SENSOR PROGRAMMING - STEP 1

DEFINITION
A. Output Setting Normally Open or Closed:
The output can be set to turn "on or off" at the pressure switch point by the user. The output is NPN (Sinking Voltage) or PNP (Sourcing Voltage). Typically, the system PLC will dictate the need for NPN or PNP outputs and the system programmer determines the logic of the output setting N.C. or N.O.

B. Units of Measure:  Units of measure can be selected on the sensor display.   Below is a chart for the available units of measure based on sensor type.

 

 

C. Easy Mode Output Switch point:  This feature SHOULD BE THE FINAL OPTION after completing all the programming sequences 1-8. If activated, the sensor will only allow adjustments to the switch points "H-1/H-2". This is to minimize the time required to make switch point adjustments. The hysteresis values "h-1" and "h-2" previously will not be changed.

D. Selecting Remote Sensor Pressure Range: The Pressure Range of the remote sensor must correspond to the presure range selected on the MPS-71 Series, otherwise the display will not indicate appropriate pressure.

PROGRAMMING PROCEDURE

 

 

A. OUTPUT SETTING OPEN OR CLOSED 

The sensor has two independent outputs (NPN or PNP) that  can be programmed "ON" (closed)  or "OFF" (open) up to the switch point setting  (H-1/H-2 or A-1/A-2).  Begin this programming sequence by pressing the "Mode" key and "Arrow Up" key simultaneously.  The factory setting  "OU1" and "N.O." will alternate on the display.  To change the output from the factory setting,  press the "Arrow Up" key one time only.  "OU1" and "N.C." will continue to alternate on the display with the Output 1 indicator LED "ON".  To enter and store this selection press the "Mode" key.

The programming sequence defaults to "OU2" (output 2) and "NO" (normally open), which will alternate on the display.  Repeat the procedure to set Output 2.  Again, press the "Mode" key to enter and store this information.

B. UNITS OF MEASURE 

DISPLAY TYPE SENSORS offer a selectable unit of measure.  The programming sequence will default to the "units of measure" selection.  The factory set unit of measure "-Pa" (Pascal) will appear on the display. To select another unit of measure,  press the "Arrow Up" or "Arrow Down" key one time.  Continue with this procedure until the desired unit of measure is displayed.  To enter the selection, press the "Mode" key one time and this information will be entered and stored in the sensor.

C. Easy Mode Switch Point Changing:
To activate this feature, press the "Arrow Up" or "Arrow Down" key. "E5Y" and "ON" will alternate on the display. To exit, press the "Mode" key one time and the easy mode feature is activated, the word "End" will appear.

If activated, adjust the previously set switch point value "H-1", press the "Mode" key one time. "H-1" and "A Number" previously set will alternate on the display. To adjust this number press the "Arrow Up" or "Arrow Down" keys. Press the "Mode" key to enter this value and the sensor will default to "H-2" and "A Number" previously set which will alternate on the display. Press the "Arrow Up" or "Arrow Down" keys to change the value if necessary. To exit this feature, press the "Mode" key one time and this information will be entered and stored in the sensor.

D. Selecting Remote Sensor Pressure Range: Select corresponding remote pressure by pressing the mode key nine times. The number "9" will appear on the display. After 3 seconds then factory setting "P-1" will appear on the display. From the chart below, select the appropriate remote sensor. Press the mode key to enter and store this information.

Display

Pressure Range

P1:

Vacuum 0 to -30inHg

P2:

Low Pressure 0 to 14.5PSI

P3:

Pressure 0 to 145PSI

P4:

Compound -14.7PSI to +72.5PSI

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