Omega ZW-CM User manual

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ZW-CM
Wireless Environmental Sensor
TM
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User’s Guide

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves
the right to alter specifications without notice.
omega.com [email protected]
Servicing North America:
U.S.A. Omega Engineering, Inc.
Headquarters: Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: [phone] Fax: [phone]
e-mail: [email protected]
For Other Locations Visit omega.com/worldwide

1!
Table of Contents
NOTES,-WARNINGS-AND-CAUTIONS-....................................................................................................................-3!
PART-1:-INTRODUCTION-.....................................................................................................................................-4!
!SAFETY!AND!EMC!CONSIDERATIONS!..........................................................................................................................!4!
ESD$Warning:$......................................................................................................................................................$4!
EMC$Considerations:$...........................................................................................................................................$4!
!BEFORE!YOU!BEGIN!................................................................................................................................................!4!
Inspecting$Your$Shipment:$..................................................................................................................................$4!
Manuals$/$Software:$...........................................................................................................................................$4!
INCLUDED!WITH!YOUR!ZW-CM-TH!............................................................................................................................!5!
!DESCRIPTION!.........................................................................................................................................................!6!
PART-2:-HARDWARE-...........................................................................................................................................-7!
!ZW-CM!DIAGRAM!................................................................................................................................................!7!
!DIP!SWITCHES!.......................................................................................................................................................!7!
Setting$the$Network$ID:$......................................................................................................................................$9!
Setting$the$Device$ID:$.........................................................................................................................................$9!
!POWER!BUTTON!..................................................................................................................................................!12!
!DIMENSIONS!AND!MOUNTING!................................................................................................................................!12!
PART-3:-INITIAL-SETUP-......................................................................................................................................-13!
ANTENNA!WARNING!.............................................................................................................................................13!
!CHOOSING!A!WIRELESS!NETWORK!ID!......................................................................................................................!13!
!CHOOSING!A!DEVICE!ID!......................................................................................................................................... 14!
PART-4:-SPECIFICATIONS-..................................................................................................................................-15!
!WIRELESS!COMMUNICATIONS!................................................................................................................................!15!
!POWER!...............................................................................................................................................................!15!
Input$Power:$.....................................................................................................................................................$15!
Batteries$(Included):$.........................................................................................................................................$15!
!ENVIRONMENTAL!.................................................................................................................................................!15!
!GENERAL!............................................................................................................................................................!15!
!BATTERY!LIFE!......................................................................................................................................................!15!
Temperature!..................................................................................................................................................... 15!
APPENDIX-A:-RF-TOPICS-....................................................................................................................................-17!
RF!CHANNEL!SELECTION!.............................................................................................................................................!17!
SIGNAL!STRENGTH!INDICATOR!......................................................................................................................................!17!
MAXIMIZING!RANGE!..................................................................................................................................................!18!
APPENDIX-B:-WIRELESS-CERTIFICATIONS-..........................................................................................................-19!
FEDERAL!COMMUNICATION!COMMISSION!INTERFERENCE!STATEMENT!.................................................................................!19!
INDUSTRY!CANADA!STATEMENT!....................................................................................................................................!19!
CE!STATEMENT!.........................................................................................................................................................!19!
APPENDIX-C:-SAFETY-&-REGULATORY-COMPLIANCE-.........................................................................................-20!
SAFETY:!...................................................................................................................................................................!20!
EMC:!......................................................................................................................................................................!20!
Relative Humidity!............................ ..................................................................................................................!15!
4.7
Barometer Pressure ............................................................................................................................................!15!
4.8
RADIO:!....................................................................................................................................................................!20!
CE:!.........................................................................................................................................................................!20!
FCC!/!IC:!.................................................................................................................................................................!20!
FCC!RADIATION!EXPOSURE!STATEMENT:!........................................................................................................................!20!
!Disa!ssembly.......................................................................................................................................................!7!
!2.3!
!2.4!
!2.5!
!4.3!
!4.4!
!4.5!
!4.6!

2!
List of Tables and Figures
Figure 1.1 – ZW-CM Included Items$.......................................................................................................................$5!
Figure 2.1 – ZW-CM Diagram$.................................................................................................................................$7!
Table 2.1 – ZW-CM Diagram Key$...........................................................................................................................$7!
Figure 2.2 – ZW-CM DIP Switch Detail ...................................................................................................................$8!
Table 2.2 – Network ID$...........................................................................................................................................$9!
Table 2.3 – Device ID (0 – 63)$.................................................................................................................................$9!
Table 2.4 – Device ID (64 - 127)$...........................................................................................................................$10!
Figure 2.3 – Mounting Dimensions$......................................................................................................................$12!
Table 4.5 – Estimated Battery Life$....................................................................................................................15
Figure A.1 – Global Frequency Chart .....................................................................................................................$17!
Figure A.2 – Received Power Chart$......................................................................................................................$18!

3
NOTES, WARNINGS and CAUTIONS
Information that is especially important to note is identified by the following labels:
•NOTE
•WARNING or CAUTION
•IMPORTANT
•TIP
NOTE: Provides you with information that is important to successfully setup and
use the ZW-CM Wireless End Device.
CAUTION or WARNING: Tells you about the risk of electrical shock.
CAUTION, WARNING or IMPORTANT: Tells you of circumstances or practices
that can affect the instrument’s functionality and must refer to accompanying
documents.
TIP: Provides you helpful hints.

4!
PART 1: INTRODUCTION
Safety and EMC Considerations
ESD Warning:
Warning:
The following parts of the unit are ESD sensitive:
• Metal connectors for signal and power
EMC Considerations:
• Whenever EMC is an issue, always use shielded cables.
• Never run signal and power wires in the same conduit.
• Use twisted-pair wires for differential signal connections.
• Install Ferrite Bead(s) on signal wires close to the instrument if EMC problems
persist.
• Failure to follow all instructions and warnings may result in injury!
Before You Begin
Inspecting Your Shipment:
Remove the packing slip and verify that you have received everything listed. Inspect
the container and equipment for signs of damage as soon as you receive the shipment.
Note any evidence of rough handling in transit. Immediately report any damage to the
shipping agent. The carrier will not honor damage claims unless all shipping material is
saved for inspection. After examining and removing the contents, save the packing
material and carton in the event reshipment is necessary.
If you need assistance, please contact the Customer Service Department nearest
you.
Manuals / Software:
The latest User Manual as well as free software including the Omega Enterprise
Gateway are available at the website listed on the cover page of this manual.

5!
Included with Your ZW-CM-BTH/ZW-CM_BTHL
• ZW-CM-TH / ZW-CM-BTH Wireless End Device
• Mounting Kit - includes screws and anchors
• 2x "AA" Cell Batteries
• Quick Start Manual
Figure$1.1$–$ZW-CM-TH$/$ZW-CM-BTH$Included$Items$(Not$to$scale)$

6!
Description
The new, high-performance OMEGA
TM
ZW-CM wireless End Device provides
robust wireless environmental monitoring for Temperature and Humidity (ZW-CM-TH)
and Temperature, relative Humidity and Barometric Pressure (ZW-REC-THB). The
ZW-CM transmits to a Wireless Receiver, such as the ZW-REC that provides web-
based monitoring of all of OMEGA’s IEEE 802.15.4 compatible Wireless End
Devices.
The ZW-CM is IEEE 802.15.4 compliant and operates at 2.4 GHz. It communicates
over distances up to 300m
1
(1000').
The ZW-CM operates on 2 AA Batteries for up to 7 years. The ZW-CM also offers
strong data assurance by verifying the receipt of each reading is confirmed by the
Receiver. If communication with the Receiver is lost the ZW-CM continues to record up
to 1500 samples for extended loss of communications or if the upstream data logging
application is off line.
The ZW-CM is designed to communicate with the ZW-REC which may connect to
up to 128 End Devices and up to 8 receivers can be setup in one area allowing for
networks of up to 1028 total End Devices. The built-in web server allows viewing,
logging and generating alarms and supports encryption to protect your sensitive data.
The ZW-REC can also wirelessly update firmware for the ZW-CM and Compatible
devices.
The Omega Enterprise Gateway (OEG) web server software can be used to allow
the monitoring of devices connected to different receivers from a single webpage as
well as other Omega sensor and control products. An optional OPC server and MQTT
client software is offered as part of the OEG software platform.
1
Without obstructions or interferences
2
Battery life varied with update rate. See Battery Power Section.

7!
PART 2: HARDWARE
ZW-CM Diagram
Table$2.1$–$ZW-CM$Diagram$Key$
1!
DIP!switch!(under!cover),!sets!the!NID!and!DID!of!the!End!Device.!!See!Section!2.3.!
2!
Power!Switch!
3!
Label!for!Unit!Address,!Group!No.!and!Network!ID!address!(NID)!
4!
Wall!mounting!holes!
5!
Label!with!part!and!serial!numbers!
6!
Radio!module!firmware!revision!location!on!label!
7!
Case’s!tray,!where!the!PCB,!sensor!and!batteries!are!mounted!
8!
Case’s!cover!
9!
Transmit!LED!(blue)!
10!
Case’s!latch:!squeeze!sides!to!pull!the!cover!off!
Disassembly
You!may!need!to!open!the!unit!for!one!of!the!following!reasons:!
•To!turn!on!or!off!the!power!switch
•To!mount!the!unit!to!a!wall.!Refer!Section!2.5!for!mounting!dimensions.
•To!replace!the!two!1.5!Vdc!AA!alkaline!batteries!(note!the!polarity!of!batteries)
Figure$2.1$–$ZW-CM$Diagram

8!
DIP Switches
The ZW-CM has two sets of DIP switched located near the battery holder inside of
the unit, for easy configuration.
Figure 2.2 shows a close-up view of the switches. To
Figure$2.2$–$ZW-CM$DIP$Switch$Detail