Automated Logic ZPM Series Manual page 6

#47140 – 9/7/23
Output Termination
To ensure that all wires are properly terminated, twist the stripped ends of each wire
together before inserting into the terminals. Gently tug on the wire after inserting into
the terminal to verify a good connection.
Auto-Zero Procedure and Status LED Operation
Auto-Zero for Standard Units
Auto-Zeroing must be done after the initial setup, changing mounting
orientation or changing any settings. For most applications, perform
an auto-zero whenever it appears that the sensor has drifted. For
critical applications, the unit should be zeroed 2-3 times a year.
1. Power must be on.
2. Detach system tubing and deadhead ports using the supplied
tubing or other short length of tubing. Do not kink tubing.
3. Press and hold the Auto-Zero button for 1-2 seconds. The Status
LED will stop flashing when completed.
4. Remove deadhead tubing and reattach system tubing.
Auto-Zero for Units with Attached Tube
1. Power must be on.
2. Disconnect system tubing from the Low Pressure brass fitting and
attach the supplied 6" deadhead tubing to the brass fitting.
3. Disconnect the short clear tubing from the 90° black Attached Tube
fitting with your fingers (Fig. 3). A pliers may cut the tubing.
4. Connect the clear tubing to the supplied straight black fitting on the 6"
tubing (Fig. 9). Do not kink the tubing.
5. Press and hold the Auto-Zero button for 1-2 seconds. The Status LED
will stop flashing when completed.
6. Disconnect the deadhead tubing and reattach the clear tubing and
system tubing. Confirm that the clear tubing is pressed all of the way
onto the fitting and that it is not kinked.
Specifications subject to change without notice.
1150 Roberts Boulevard, Kennesaw, Georgia 30144
770-429-3000 Fax 770-429-3001 | www.automatedlogic.com
High Range ZPM - Zone Pressure Sensor
Figure 2: Auto-Zero and Status LEDs
Figure 3: Deadheading ports on units with
Installation and Operation
Figure 1: ZPM Wiring Terminals
attached tube (-AT)
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