Inovonics Wireless 3B6ETIMT Users manual

EN1550 MetraMeter™

Installation and Operation Manual - 04672A

1 Overview

The EN1550 combines the quality of a Neptune® T-10 water
meter with the latest Inovonics Wireless EchoStream RF
technology to provide an integrated meter transmitter for
use in the TapWatch submetering system.

1.1 Inovonics Wireless Contact Information

If you have any questions about this product, contact
Inovonics Wireless technical services:

• E-mail: [e-mail]

• Phone: [phone]

1.2 EN1550 Components

C

B

A

D

E

Figure 2 Install the Battery Pack

2. Snap the battery pack enclosure into place over the

battery pack.

Figure 1 EN1550 Components

A. Main case B. Register C. Operation

button

D. Power pack E. Security pin

2 Installation and Startup

2.1 Install the Power Pack

You must install the power pack for the EN1550 to function.
To install the battery pack:

1. Carefully align the three power pack pins to the three

holes in the top of the register and press down evenly,
keeping the pins perpendicular to the holes.

Caution: Install the power pack carefully. If the pins are

not kept perpendicular with the register during installation,
they may break. Never install the power pack at an angle.

Figure 3 Install the Battery Pack Enclosure

2.2 Install the Meter

To install the meter:

1. Flush the service line to remove debris prior to installing

the meter.

2. Install suitable inlet and outlet meter valves and

couplings/setters if they are not already present.

• Inovonics Wireless recommends installing a shut-off
valve before the meter.

• Ensure appropriate space is allowed in the line for the
meter and two couple gaskets. The gap from gasket to
gasket should be 7 1/2 inches.

• Ensure the pipe ends are aligned so that the coupling
and meter threads engage without binding or cross­threading.

• Make sure to adhere to local plumbing codes and
regulations.

3. Remove the meters thread protectors and spud caps.

• Ensure no debris enters the meter during installation.

4. Place the coupling gaskets inside the coupling nuts and

set the meter in the line.

• For best results, install the meter in the horizontal
position, with the register di l facing upward.

• The direction of the flow marked on the meter must
agree with the direction of water flow.

5. Start the coupling nuts by hand, then use a wrench to

tighten.

• Be careful not to cross-thread the connection.

6. Make sure to support the meter if plumbing it to PVC.

© 2006 Inovonics Wireless - www.inovonicswireless.com Page 1

7. Slowly open the valve and run enough water to

dissipate entrained air and flush the line.

8. Check to make sure the meter is indicating flow.

9. Check the meter for leaks.

2.3 Complete Installation

After the meter has been installed:

1. Reset the transmitter. See “Send Reset Message” on

page 2 for instructions.

2. Write down the odometer’s initial meter count for entry

into the TapWatch 2 software.

3. Put the meter in rapid transmit mode. “Set Modes” on

page 2 for instructions.

3 Operation/Maintenance

3.1 Remove the Power Pack

If it is necessary to remove the power pack:

1. Lift the outside edge of the battery pack enclosure away

and up from the register to remove it.

2. Use a flat blade screwdriver to evenly lift the battery

pack away from the register at the points marked LIFT HERE.

Caution: Remove the power pack carefully. If the pins are

not kept perpendicular with the register during removal,
they may break. Never remove the power pack by rocking it
away from the register.

5. Use your thumb to insert a new security pin.
Note: If you will need to rotate the register again, ensure

there’s appropriate clearance to remove the security pin in
the new position.

3.3 How to Read the Meter

A

B

C

Figure 5 EN1550 Components

A. Flow indicator B. Odometer C. Sweep hand

Flow indicator The flow indicator spins when water is

flowing through the meter.

Odometer The odometer displays the number of gallons

used, to the nearest 10 gallons.

Sweep hand The sweep hand indicates the single digit

number of gallons that has passed through the meter. Each
full revolution indicates 10 gallons of consumption, and
will advance the first column on the odometer.

The meter in Figure 5 shows a consumption of 14.6
gallons. The odomoter indicates that 10 gallons have been
used, and the sweep hand adds 4.6 gallons to that
number.

3.4 Send Reset Message

Figure 4 Remove the Battery Pack

When the EN1550 is reset, the count is zeroed and an RF
reset message is sent. The RF reset message is used for

3.2 Rotate the Register

If the odometer is difficult to read, the register can be
rotated.

Caution: The register should only be rotated if absolutely

necessary. To rotate the register, you will need to purchase
a new security pin from Inovonics Wireless. The security
pin used in EN1550 is meant for one use only.

1. Use a punch to drive the security pin into the register

(Fig. 1).

2. Turn the register 45 degress and lift it off of the meter.

3. Remove the broken security pin from the bottom of the

register.

4. Replace the register in the desired position.

Page 2 © 2006 Inovonics Wireless - www.inovonicswireless.com

registration into TapWatch software. To reset the EN1550:

1. Push an unfolded paper clip through the guide hole to

press and hold the Operation

button for five seconds

(Figure 2).

3.5 Set Modes

In normal mode, the EN1550 transmits the flow count
approximately once per hour, or upon every 100 gallons of
water, whichever occurs first. When in rapid transmit
mode, the EN1550 transmits the flow count approximately
once per minute. Rapid transmit mode is used during
installation, to help ensure all your programmed end­devices are functioning correctly.