Additional Wireless Temperature Monitor

Additional wireless temperature monitor

EN-T

User Guide

Version 1.0

For further details, please contact:

Enistic Limited, 4 Isis Business Centre, Pony Road, Oxford, OX4 2RD

Contents

Overview

Hardware architecture

Wiring Guide

Pairing Transmitter With a Ethernet Receiver – Photograph

Battery Replacement

Temperature Probe Connection – Photograph

Specifications

Document history

Version / Date / Author / Notes
1.0 / 19 Jan 2015 / Wasil Ali / Preliminary release of alpha test details.

Overview

Additional wireless temperature monitor (EN-T) is a meter that reads temperature from the temperature probe and sends back to the Ethernet wireless receiver (EN112). It is a low cost solution and suitable for office and industrial monitoring applications. EN-T has single input to attach temperature probe supporting readings from -55⁰C to 125⁰C (-65⁰F to +257⁰F). It communicates with the controller through the Wireless communication (RF 433MHz ISM band). It comes in a small enclosure and can be mounted on a wall. Simple to Install and easy to configure.

• Suitable for residential, commercial and industrial monitoring purposes

• Manufactured to comply with IEC 60687/61036/61268 and IEC 62053-21/62053-22/62053-23

• Single receiver can handle multiple transmitters

• Plug and play. Easy to install on site

• Wireless, low power operation

Features

• Highly accurate design

• Manufactured to comply with international standards IEC 60687/61036/61268 and IEC 62053-21/62053-22/62053-23

• Connects with controller on 433 MHz Band

• Encrypted communications for secure operation

• Good range

Order codes

EN-T - Additional wireless temperature monitor

EN126 - Battery 3.6V, AA, 2600mAh

EN-T1 -Temperature Probe

Hardware architecture

Figure 1: Hardware Architecture

Wireless temperature monitor, consists of a processor and RF transceiver to communicate with the Ethernet wireless Receiver (EN112). This device is responsible for taking the readings from temperature probe and send readings to the controller via RF link. Frequency off the link is 433MHz. It transmits reading to the receiver (EN112) every 5 minutes.

Wiring Guide

Figure 2: Activity LED “Green”

Figure 3: Temperature Probe Connection

Figure 4: Non-Rechargeable Battery

Pairing Transmitter With a Ethernet Receiver– Photograph

In order to pair each transmitter (EN-T) with the receiver (EN112) press the pairing mode button at the back of the receiver (EN112). During pairing mode the radio activity and server activity LEDs start flashing for about one minute. While receiver is in pairing mode connect the battery in the transmitter and wait so that it pairs with the receiver. Once it pairs you will see the radio activity and server activity LEDs stop flashing.

You need to repeat the above step each time if you have multiple transmitters (EN-T).

Figure 5: Ethernet Receiver Connection Layout

Battery Replacement

Figure 6: Battery Replacement

Battery Details

Nominal Voltage 3.6V
Nominal Capacity 2.6 Ah (2600mAh)
Nominal Current 2mA
Maximum Continuous Discharge Current 70mA
BatteryWeight 17g
TemperatureRange –60°C ...+85 °C
Diameter 14.65mm
Length 50.3mm
Order Code: EN126

Temperature Probe Connection– Photograph

Figure 7: Temperature Probe

Figure 8: Temperature Connection

Specifications

Electrical

Item / Value / Unit
Battery for EN-T / 3.6 / Vdc
Battery Type / Lithium Thionyl Chloride
Battery Capacity / 2600 / mAh
Power Consumption (Typical / Maximum) / 9 / 250 / mW

Physical

Item / Value / Unit
Size (l x w x h) / 110x71x42 / mm
Fitting / Wall mount
Storage temperature (min -> max) / -10 -> +30 / °C
Operation temperature (min -> max) / -10 –> 85 / °C

Measurements and Metrology

Item / Value / Unit
Temperature range (min / max) / -55 / +125 / °C
Probe Length (min / max) / 0.5 / 500 / m
Measure Frequency / 300 / s
Nominal reporting interval (per channel) / 300 (5) / s (min)
Channels / 1

Communication

Item / Value / Unit
Standard / RF / -
Frequency / 433 / MHz
MaximumRange between Tx and Rx (LOS) / 100 / m
Encryption / Yes

Miscellaneous and Standards

Item / Value / Unit
Country of Design / Manufacture / UK
Packaging / Cardboard box