netvox ZigBee 821 User manual

ZigBeeTM- Wireless Power Meter
User Manual
Wireless Power Meter
Model: Z821

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Table of Contents
1. Introduction.............................................................................................................................................................. 2
2. Product Appearance.................................................................................................................................................3
3. Specification.............................................................................................................................................................. 4
4. Installation.................................................................................................................................................................4
5. Setting up Z821......................................................................................................................................................... 8
5-1. Join the ZigBee Network................................................................................................................................ 8
5-2. Permit-Join...................................................................................................................................................... 8
5-3. Power Measurement........................................................................................................................................8
5-4. CT/ N Wire/ L Wire Connection Error Notification...................................................................................... 8
5-5. Reset Power Consumption Summation.......................................................................................................... 8
5-6. Restore to Factory Setting...............................................................................................................................9
6. Home Automation Clusters for Z821..................................................................................................................... 9
7. Related Netvox Devices..........................................................................................................................................11
8. Important Maintenance Instructions................................................................................................................... 11

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1. Introduction
Z821, the ZigBee compact-size multi-port CT (current transformer) type power meter, acts as a router in ZigBee
network. Z821 is the only one for independent monitoring and measurement of up to 7 single-phase AC outlets in
the world. It is fully IEEE 802.15.4 compliant and utilizes 2.4GHz ISM band. With high measurement accuracy
±0.5%~1%, Z821 has the most advanced performance and is an ideal product to know the whole power and energy
consumption such as load current, load voltage, power, or energy.
What is ZigBee?
ZigBee is a short range wireless transmission technology based on IEEE802.15.4 standard and supports multiple
network topologies such as point-to-point, point-to-multipoint, and mesh networks. It is defined for a
general-purpose, cost-effective, low-power-consumption, low-data-rate, and easy-to-install wireless solution for
industrial control, embedded sensing, medical data collection, smoke and intruder warning, building automation
and home automation, etc.

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2. Product Appearance
Status Indicator (Red)
Binding Key
Match Key
Network Indicator (Green)
SMA Jack
Power Switch
Current Transformer Terminals
Current Transformer
Terminals
L In
N

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3. Specification
Fully IEEE 802.15.4 compliant (ZigBee Pro)
Utilizes 2.4GHz ISM band; up to 16 channels
Power supply: 100~240VAC, 50/60Hz
Power consumption: 18mA/230VAC, 1.2W
Basic accuracy: <±1%
Measuring Range: 7 single CTs; 60A x 1/ 30A x 6
Transmission range: Up to 280 meters
Easy installation and configuration
4. Installation
This device is NOT truly waterproof/ resistant and is for indoor use.
This equipment must only be installed and serviced by qualified electrical personnel.
Turn off all power supplying equipment before working on or inside the equipment.
Always use a properly rated voltage sensing device to confirm power is off.
Beware of potential hazards, wear personal protective equipment, and carefully inspect the work area for
tools and objects that may have been left inside the equipment.
Install the power line (live wire) which you would like to measure with the Primary side. Next, connect the
Secondary side to Z821 (k to k; l to l).

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Z821 power wire installation is as shown below, AC-L connected to live line, AC-N then N line
Install CT terminal of the black wire and white wire as below diagram:

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CT terminals of the L and K polarity distinction are as follows:
While connecting, use two wires (the color is white and black, representing the k and l terminals) of the secondary
side of the CT to correspond to the character markers (k and l) on the Z821 housing.
The AC power line goes through the CT center hole, and the CT K-side (injection surface) towards the power
supply side, L side (character face) towards the load side.
Distribution box and antenna installation as follows:

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The circuit is as follows after installation:

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5. Setting up Z821
5-1. Join the ZigBee Network
After Z821 is turned on, it will search for an existing ZigBee network and send a request to join the network
automatically. While Z821 is under the coverage from a coordinator or a router whose permit-join feature is
enabled, Z821 will be permitted to join the network.
Step1. Enable the permit-join function (valid for 60 seconds) of a coordinator or a router (please refer to
the user manual of the coordinator or the router to enable the permit-join feature).
Step2. Turn on Z821. It will start to search and join the network.
Step3. The indicator will flash green once when it finds out a network to join.
Step4. The network indicator will stay green after it is joined successfully. Otherwise, the indicator will
be off.
5-2. Permit-Join
Z821 acts as a router in ZigBee network. After the permit-join feature is enabled, it allows other devices to join
the network.
Step1. Press the Binding Key. The permit-join feature will be enabled for 60 seconds.
Step2. Within the period of 60 seconds, the network indicator flashes once per second.
Within the period of 60 seconds, press the Binding Key again to turn off the permit-join.
5-3. Power Measurement
Z821 is an ideal product to know the whole energy consumption of the building; even to measure every sub
power meter to recognize how much energy is consumed by appliances in your home/office. Through ZigBee
technology, users are able to acquire the data, like current, voltage, power, or energy, from Z821 wirelessly.
5-4. CT/ N Wire/ L Wire Connection Error Notification
When the connection of CT or N/L wire is incorrect, the Status Indicator will keep flashing red. In this case,
we will get the wrong power consumption data.
5-5. Reset Power Consumption Summation
To reset the power consumption data, please follow the steps:

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Step1. Press and hold the Binding Key for 20 seconds. The status indicator will flash 4 times.
Step2. After releasing the Binding Key, press the Match Key within 2 seconds to complete the reset.
5-6. Restore to Factory Setting
To restore it to factory setting, please follow the steps:
Step1. Press and hold the Binding Key for 15 seconds. The status indicator will flash 3 times.
Step2. After releasing the Binding Key, press the Match Key within 2 seconds to complete the restore.
6. Home Automation Clusters for Z821
A cluster is a set of related attributes and commands which are grouped together to provide a specific function. A
simple example of a cluster would be the On/Off cluster which defines how an on/off switch behaves. This table
lists the clusters which are supported by Z821.
This lists the attributes of the basic information.
Identifier Name Type Range Access Default Mandatory
/ Optional
0x0000 ZCLVersion 8-bit
Unsigned
integer
0x00 –0xf
f
Read
only
0x03 M
Cluster ID for Z821
Server side Client side
Consumption Awareness
Basic（0x0000）None
Identify (0x0003)
Commissioning（0x0015）
Simple Metering（0x0702）
Attribute ID for Simple Metering (0x0702)
ATTRID
Current (0xE000)
Voltage (0xE001)
Power (0xE002) InstananouesDemand (0x0400)
Energy (0xE003) CurrentSummationDeliver (0x0000)

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Identifier Name Type Range Access Default Mandatory
/ Optional
0x0001 ApplicationVersion 8-bit
Unsigned
integer
0x00 –0xf
f
Read
only
0x0A O
0x0002 StackVersion 8-bit
Unsigned
integer
0x00 –0xf
f
Read
only
0x2F O
0x0003 HWVersion 8-bit
Unsigned
integer
0x00 –0xf
f
Read
only
0x0A O
0x0004 ManufacturerName Character
string
0 – 32
Bytes
Read
only
netvox O
0x0005 ModelIdentifier Character
string
0 –
32bytes
Read
only
Z821E3R O
0x0006 DateCode Character
string
0 – 16
bytes
Read
only
20131025 O
0x0007 PowerSource 8-bit
Enumeration
0x00 –0xf
f
Read
only
0x01 M
0x0010 LocationDescription Character
string
0 –
16bytes
Read/w
rite
Empty
string
O
0x0011 PhysicalEnvironment 8-bit
Enumeration
0x00 –0xf
f
Read/w
rite
0x00 O
0x0012 DeviceEnabled Boolean 0x00–0x0
1
Read/w
rite
0x01 O

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7. Related Netvox Devices
Z800: Power Socket with Power Consumption Monitoring
8. Important Maintenance Instructions
Please keep the device in a dry place. Precipitation, humidity, and all types of liquids or moisture can contain
minerals that corrode electronic circuits. In cases of accidental liquid spills to a device, please leave the device
dry properly before storing or using.
Do not use or store the device in dusty or dirty areas.
Do not use or store the device in extremely hot temperatures. High temperatures may damage the device or
battery.
Do not use or store the device in extremely cold temperatures. When the device warms to its normal
temperature, moisture can form inside the device and damage the device or battery.
Do not drop, knock, or shake the device. Rough handling would break it.
Do not use strong chemicals or washing to clean the device.
Do not paint the device. Paint would cause improper operation.
Handle your device, battery, and accessories with care. The suggestions above help you keep your device
operational. For damaged device, please contact the authorized service center in your area.