EkkoSense FS SNS 03 User Manual
Critical Things ™
Wireless sensors installation guide
EkkoSense Ltd Registered in England and Wales No. 8594313 Tower House, Lucy Tower Street, Lincoln, LN1 1XW
1
Version 2 – 23rd September 2019
Wireless sensors
Installation guide
| Critical Things |
Critical Things ™
Wireless sensors installation guide
EkkoSense Ltd Registered in England and Wales No. 8594313 Tower House, Lucy Tower Street, Lincoln, LN1 1XW
2
Copyright Notice
All rights reserved. No part of this publication may be reproduced without the expressed written
permission of EkkoSense Ltd.
EkkoSense Ltd shall not be liable to the purchaser of this product or third parties for damages,
losses, costs, or expenses incurred by the purchaser or third parties as a result of accident, misuse
or abuse of this product or unauthorised modifications, repairs, or alterations to this product, or
failure to strictly comply with EkkoSense Ltd operating and installation instructions.
Disclaimer
This document is for informational purposes only and is provided ‘as is’ with no warranties
whatsoever. This includes any warranty of merchantability, non-infringement, fitness for any
particular purpose, or any warranty arising out of any proposal, specification, or sample.
EkkoSense disclaims all liability, including liability for infringement of any proprietary rights,
relating to the use of information in this specification.
No license, express or implied, to any intellectual property rights is granted herein.
Revision history
Version
Notes
V1.0
New, based on Ekkosoft Critical Installation Standards
V2.0
Updated for updated (-03) sensors
Critical Things ™
Wireless sensors installation guide
EkkoSense Ltd Registered in England and Wales No. 8594313 Tower House, Lucy Tower Street, Lincoln, LN1 1XW
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Contents
1. About this installation guide ................................................................................ 5
2. EkkoHub and wireless sensors ............................................................................ 6
3. Installation preparation ....................................................................................... 7
Tools and safety equipment .................................................................................................... 7
Installation workflow ............................................................................................................... 7
4. Identify your wireless sensor ............................................................................... 8
5. Using thermistor inputs on EkkoSensors ............................................................. 9
6. Install a wireless sensor ..................................................................................... 12
Assess the location of the air inlets ....................................................................................... 12
Regular racks – air inlets ............................................................................................... 12
Glass-front racks – air inlets ......................................................................................... 12
Consider mounting requirements .......................................................................................... 13
Fit the wireless sensor ........................................................................................................... 15
7. Add a sensor to EkkoSoft ................................................................................... 17
8. Battery installation or replacement .................................................................. 19
9. Using TSX and THX sensors ................................................................................ 21
10. Using the TDX sensors ....................................................................................... 22
Browse the sensor screens .................................................................................................... 23
Main screen............................................................................................................................ 23
Thermistor temperature measurements ............................................................................... 24
Compliance ............................................................................................................................ 24
Statistics screens .................................................................................................................... 25
Graphs .................................................................................................................................... 26
Sensor information screens ................................................................................................... 26
11. EkkoSensor specifications ................................................................................. 27
12. Install EkkoHub .................................................................................................. 29
Find a suitable position for the EkkoHub ............................................................................... 29
Fit the EkkoHub transceiver unit ........................................................................................... 30
Critical Things ™
Wireless sensors installation guide
EkkoSense Ltd Registered in England and Wales No. 8594313 Tower House, Lucy Tower Street, Lincoln, LN1 1XW
4
13. EkkoHub LEDs .................................................................................................... 31
14. FCC Statement ................................................................................................... 32
Critical Things ™
Wireless sensors installation guide
EkkoSense Ltd Registered in England and Wales No. 8594313 Tower House, Lucy Tower Street, Lincoln, LN1 1XW
5
1. About this installation guide
This guide is aimed at sensor installers and explains how to install and use EkkoSense Critical
Things ™ wireless sensors (EkkoSensors) and data receivers (EkkoHubs). The EkkoAir product is
covered in a separate guide (EkkoAir Installation).
Critical Things ™
Wireless sensors installation guide
EkkoSense Ltd Registered in England and Wales No. 8594313 Tower House, Lucy Tower Street, Lincoln, LN1 1XW
6
2. EkkoHub and wireless sensors
Critical Things ™ wireless sensors are designed to take accurate temperature and relative
humidity measurements from the racks in a data centre.
The sensors use radio to communicate their measurements to an EkkoHub wireless transceiver
unit. The EkkoHub receives the measurements and then sends them to the EkkoLink data
aggregator for transmission to the EkkoSoft application via an internet connection.
Critical Things ™
Wireless sensors installation guide
EkkoSense Ltd Registered in England and Wales No. 8594313 Tower House, Lucy Tower Street, Lincoln, LN1 1XW
7
3. Installation preparation
Before you install the EkkoSensors and EkkoHubs, you should make sure you have the
appropriate Tools and safety equipment. You should also make sure you are familiar with the
Installation workflow.
When you install the sensors, you need to make sure they are positioned correctly on the server
racks and that they are within range of the EkkoHub. The EkkoHub has a recommended maximum
range of 20m from EkkoSensors.
You should install the EkkoHub so that it can be connected to a Power over Ethernet switch for
power and internet connection.
Tools and safety equipment
To install the sensors and EkkoHub you will need:
Tape measure
Cable-ties
Adhesive tape
Screws and wall plugs (if fixing EkkoHub to a wall)
Ethernet cable.
Installation workflow
To install Critical Things sensors and the EkkoHub, you should follow this workflow:
1. Identify your wireless sensor
2. Connect external thermistor sensors if required (see Using thermistor inputs on
EkkoSensors)
3. Install a wireless sensor
4. Add a sensor to EkkoSoft
5. Install EkkoHub
CAUTION: Always wear appropriate Personal Protective Equipment (PPE) for the site. For
details, please contact the site manager.
Critical Things ™
Wireless sensors installation guide
EkkoSense Ltd Registered in England and Wales No. 8594313 Tower House, Lucy Tower Street, Lincoln, LN1 1XW
8
4. Identify your wireless sensor
The first step is to identify the type of sensor you have. The model is shown on the label on the
back of the sensor.
The first two characters correspond to the operating frequency. ES is 868.3MHz and FS is
923MHz. The operating frequency must match the receiving frequency of the EkkoHubs.
EkkoHubs use the same two characters to identify the receiving frequency so ES sensors and ES
EkkoHubs and FS sensors and FS EkkoHubs must be used together.
The next three characters correspond to the sensor type:
Sensor
Type
Code
Wireless
temperature
sensor
Wireless
humidity sensor
Number of
optional external
thermistor inputs
Built-in display
TSX
YES
NO
ONE
NO
THX
YES
YES
TWO
NO
TDX
YES
YES
TWO
YES
The final character is the hardware version, 03 for this version of sensors.
All sensors can support external thermistors to provide additional temperature measurements.
Some sensors support one external thermistor, others can support two. All sensors automatically
detect which external thermistors are connected and start sending the data without requiring
further configuration. More details are provided in Section 5 Using thermistor inputs on
EkkoSensors. Thermistors are commonly referred to as “flylead sensors” or “flying lead sensors”.
Critical Things ™
Wireless sensors installation guide
EkkoSense Ltd Registered in England and Wales No. 8594313 Tower House, Lucy Tower Street, Lincoln, LN1 1XW
9
5. Using thermistor inputs on EkkoSensors
The thermistor inputs on the EkkoSensors are configured for use with NTC thermistors with a
nominal resistance of 10kΩ at 25°C and a ß value of 3435K at 25/85°C. This is commonly referred
to as a Carel thermistor. Use of thermistors with other temperature characteristics will not give
accurate results.
The connection to the EkkoSensor uses a standard JST two pole HER-2 crimp housing with SHE001T-P0.6 or BEH-001T-P0.6 crimp connectors for wires with 0.05mm2 to 0.33mm2 cross
sectional area (30-22AWG) and insulation overall diameter 1.0mm to 1.9mm.
Connections between the thermistor and sensor do not need to be screened but should be 3m
or less.
EkkoSense supply a pre-assembled thermistor on 1.2m cable (EKCRSN00438) and a 3m cable with
the HER-2 connector on one end and blank the other end (EKCRSN00476) for connection to other
thermistors.
To connect a thermistor to a sensor, remove the back cover of the sensor by removing the screw.
The socket(s) are shown below. The identifiers B and C correspond to the way the measurement
values are identified to the software. Care should be taken that when two thermistors are
connected that they are clearly identified as B and C and correctly configured in the software.
The temperature only sensor (TSX) has only the single connector for Sensor B.
Remove
screw
Critical Things ™
Wireless sensors installation guide
EkkoSense Ltd Registered in England and Wales No. 8594313 Tower House, Lucy Tower Street, Lincoln, LN1 1XW
10
The thermistor cable connectors push fit into the housings. When fitting the thermistors avoid
touching the circuit board. The cables can be routed out of the air vents at the bottom or top of
the sensor enclosure with examples or routing one or two out of the bottom being shown below:
Replace the sensor back by hooking it in at the right-hand side and then replacing the screw,
taking care to ensure the thermistor cables route out through the holes and are not trapped.
Sensor B
External 1
Sensor C
External 2
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