ZENNER Stealth Reader Gas Meter Interface User Guide
- June 6, 2024
- ZENNER
Table of Contents
ZENNER Stealth Reader Gas Meter Interface
NOTICES
Patents
This product contains Stealth Reader Technologies that are licensed by the
manufacturer and are protected by US Patents including: 7782804, 7996534,
8126488, 8351409, 8428558 and 8428630. The furnishing of this document and/or
purchasing of the associated products does not give you any license to or
ownership of such patents.
Copying
No part of this manual or associated hardware or software products may be
reproduced in any form or by any means including, without limitation,
electronic or mechanical such as photocopying or recording, or by any
information storage and retrieval systems without the express written consent
of Zenner USA. Specifications are subject to change without notice.
FCC Compliance
FCC ID: 2ACOA-GM1
FCC ID: 2ACOA-GM3
IC ID: 26631-GM3
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning this equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Note: This device complies with Industry Canada’s license-exempt RSS. Operation is subject to the following two conditions:
- This device may not cause interference; and
- This device must accept any interference, including interference that may cause undesired operation of the device.”
Caution: Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment.
Introduction
Stealth Reader networks are used for remote monitoring of commercial,
industrial, and municipal equipment such as automatic utility metering.
Hundreds of thousands of devices are currently being monitored by Stealth
Reader networks.
Quick Tour
The Stealth Reader GMIU is powered by two lithium-thionyl chloride (LiSOCl2)
batteries. The Stealth Reader electronics are permanently encased in a
urethane potting compound to protect them from water and chemicals. 
Procedure
Connecting to the Register
The Stealth Reader GMIU is mounted directly to the gas meter with 4 screws.
The motion of the register dog or gear is transferred to the register through
the Stealth Reader GMIU with a matching shaft. The reading are recorded by
counting the sweep of an indexing magnet.
Supplies/Equipment
In order to install the Stealth Reader properly the following Equipment is needed:
- The Stealth Reader
- Stealth Handheld
- Flat Screwdriver
- Phillips Screwdriver
- Razor Scraper
Stealth Reader MIU User’s Manual Rev 17A Copyright 2021, Zenner USA
Installation
This section covers the installation of the Stealth Reader and the mounting
process.
American Meter
Preparation – American Meter
- Remove the Register and Index from the gas meter.
- Scrape the old gasket from the gas meter register areas.
- Verify that the Index Pin magnet is in place.
- Insert the Meter Pin through the Stealth Reader GMIU from the rear.
- Insert the Index Pin through the Stealth Reader GMIU from the front.
- Snap the Meter Pin onto the Index Pin.
The Meter Pin and the Index Pin assembly may be appear to be tight when
snapped together but this motion will loosen when the Stealth Reader GMIU is
installed because the case halves will be pressed together.
Install the Index onto the Stealth Reader GMIU. Verify that the register
engages the Index pin either through the slot or onto the pin. Place 4
1/4-20×3 screws through the new index cover and through the Stealth Reader
GMIU.
Install the Stealth Reader GMIU on the gas meter. Verify that the Meter pin
engages the meter dog either through the slot on onto the pin by rotating the
Meter Pin. Tighten the 1/4-20 screws in an “X” pattern until secured.
Install 2 tamper caps.
Rockwell Meter
Preparation – Rockwell Meter
- Remove the Register and Index from the gas meter.
- Determine the number of teeth on the register gear.
- Match the gear to the appropriate index gear.
- Scrape the old gasket from the gas meter register areas.
- Verify that the Index gear magnet is in place.
- Insert the Meter Gear through the Stealth Reader GMIU from the rear.
- Insert the Index Gear through the Stealth Reader GMIU from the front.
- Snap the Meter Gear onto the Index Gear.
The Meter Gear and the Index Gear assembly may appear to be tight when snapped
together but this motion will loosen when the Stealth Reader GMIU is installed
because the case halves will be pressed together.
Install the Index onto the Stealth Reader GMIU. Verify that the register
engages the Index Gear by rotating the meter gear. Place 4 10-24×3 screws
through the new index cover and through the Stealth Reader GMIU.
Install the Stealth Reader GMIU on the gas meter. Verify that the GMIU Meter
gear engages the gas meter gear. Tighten the 10-24×3 screws in an “X” pattern
until secured. Install 2 tamper caps.
Configuration
Stealth Reader installations are performed using a Stealth Handheld. The
Stealth Handheld guides installers through the installation process, records
the details of each installation, and tests and configures installed Stealth
Readers.
Whether performing as-needed installations or work-order assigned
installations, the process is similar and is described in the SR Handheld
Users Guide.
Shipping and Handling
Stealth Readers contain Lithium batteries which are hazardous and have
transportation restrictions. Check with your carrier before shipping.
Specifications
Environment:
- Do not exceed the temperature range of -40C to +85C.
Battery: 2 Tadiran LiSOCl2 Batteries
Battery Life: 10+ years