Installation Instructions

9.19.22 357-00063-01 Rev A © Inovonics, 2022 - www.inovonics.com
EN1501 Pulse Meter Transmitter
Installation Instructions
1 Overview
The EN1501 pulse meter transmitter is a pulse counter which can be used
for water, gas and electric submetering applications.
The pulse meter transmitter is available in North America, Australia and
New Zealand; the radio frequency band has been configured for the
appropriate geographic area at the factory.
1.1 Inovonics Contact Information
If you have any problems with this procedure, contact Inovonics Wireless
technical services:
• E-mail: [e-mail].
• Phone: [phone].
• Address: 11000 Westmoor Cir, Westminster, CO 80021, USA
Figure 1 EN1501 Components
1.3 What’s In The Carton
• Fifty drywall anchors.
• Fifty mounting screws.
• Fifty pieces of mounting tape.
2 Installation and Startup
2.1 Installation Notes
• These products are designed to be maintained by professional
technicians.
• Products are tested for indoor use.
2.2 Input Requirements
The EN1501 requires the following input specifications for compatibility with
the meter:
• A dry contact such as a reed switch.
• The pulse width of a switch output when it is activated must be greater
than or equal to 10ms.
• A maximum rate of six pulses per second.
• Closed impedance of the pulser mechanism must be smaller than 1k
ohm.
• Open impedance of the pulser mechanism must be greater than five
megohms.
2.3 Connect Transmitter to Meter
Connect the transmitter to the meter as follows:
1. Open the housing by pressing down on the base tab near the wiring
through-hole while lifting away the cover.
2. Fully insert stripped wires into the removable header terminal.
3. Use a small Phillips screwdriver to tighten the screws that secure wires
to the removable header terminal.
4. Attach removable header terminal (if removed) to the transmitter board
as shown.
Note: If connecting to a meter that has polarity to its pulse output, the
negative (–) should be connected to the outside terminal, closest to the
corner of the board.
Figure 2 Connect the Transmitter to the Meter
2.4 Mount the Transmitter
1. Use the double-sided tape to mount the transmitter to a clean wall.
2. As desired, secure the transmitter to the wall with the mounting screw
and anchor.
Note: To secure the EN1501, you will need to remove the battery to access
the mounting screw hole. Make sure to press the reset button after
replacing the battery to initialize the transmitter.
For product and installation videos visit us at
www.inovonics.com/videos or use the QR
code below.
A Battery
B Tamper switch
C Removable header
terminal
D Reset button
1.2 EN1501 Components
B
C
D
A Cabling through-hole B Removable header terminal
A
B
B
A