Sensata IWTXT Series IWTXT-00 Wireless 4-20mA Input Transmitter User Manual

Sensata IWTXT Series IWTXT-00 Wireless 4-20mA Input Transmitter

Instructions

Whilst every effort has been taken to ensure the accuracy of this document, we accept no responsibility for damage, injury, loss, or expense resulting from errors or omissions, and reserve the right of amendment without notice.

Information for users
This equipment has been tested and found to comply with the limits for a Class B 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 the 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 into an outlet on a circuit different from that which the receiver is connected
• Consult the dealer or an experienced radio/TV technician for help

Caution: To satisfy FCC RF Exposure requirements for mobile and base station transmission devices, a separation distance of 20cm or more should be maintained between the antenna of this device and persons during operation. To ensure compliance operation at closer than this distance is not recommended. The antenna used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. No other antenna may be used with this equipment other than the PCB antenna supplied with this equipment.
This document may not be reproduced in any way without the prior written permission of the company.
Cynergy3 Components Ltd
7 Cobham Road, Ferndown Industrial Estate, Wimborne
Dorset BH21 7PE, United Kingdom
Tel: +44(0)1202 897969,
email: sales@cynergy3.com
www.cynergy3.com

INTRODUCTION

Safety Information
This manual contains information that must be observed in the interest of your safety and to avoid damage to assets. Please read this manual before installing and commissioning the device and keep the manual in an accessible location for all users.
Contains FCC ID : W70MRF24J40MDME
Caution: To satisfy FCC RF Exposure requirements for mobile and base station transmission devices, a separation distance of 20cm or more should be maintained between the antenna of this device and persons during operation. To ensure compliance operation at closer than this distance is not recommended. The antenna used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. No other antenna may be used with this equipment other than the PCB antenna supplied with this equipment.
Please see the Certifications section for more information on RF Exposure Compliance

Hardware Features
The IWTxT Wireless 4-20 mA Transmitters has been designed to provide an excitation voltage to any standard 4-20 mA transmitter, take a reading and transmit the value to one of the IWR range of receivers where the value can be outputted as either a 4-20 mA or 1-5 V dc signal, or to an IWR-PORT or IWR-USB receiver.
The IWR-1 has a single output and the IWR-5 has five outputs, each of which can be linked to an IWTxT transmitter.
The IWTxT current transformer transmitter works on the license-free 2.4 GHz band.
Ranges of up to 500 m are possible using the standard transmitter and receiver unit with the optional 3dBi antenna giving a range of up to 750 m.
The transmitter is powered by a 3.6 V lithium cell and care must be taken to insert the battery in the correct polarity.

UNPACKING

The instrument should be carefully inspected for signs of damage that may have occurred in transit. In the unlikely case that damage has been sustained, DO NOT use the instrument, but please retain all packaging for our inspection and contact your supplier immediately.

PRODUCT IDENTIFICATION LABEL

The unit delivered should be carefully inspected to ensure it is suitable for the application required. Detailed information on the product is included in the identification label and the user manual.
Please ensure, that the temperature range of the IWTxT is suitable for the intended application and that the IWTxT unit will not be subjected to temperatures and/or temperatures greater than those specified in this manual.

INSTALLING/CHANGING THE BATTERY

A Lithium 3.6 V battery is included inside the IWTxT transmitter. The battery may be changed at any time, but the correct polarity must be observed at all times! After the battery has been changed, SW1 should be pushed for 5s. This is to ensure the battery life count is reset correctly when a new battery is installed. The internal LED will flash 5 times to indicate this procedure has been carried out successfully.
The battery life is determined by the rate the transmitter sends the Temperature value to the receiver, this update rate can be selected using Dip Switch 1 and the default value is 10s.
A second set of batteries is used to provide the excitation supply to the external 4-20 mA transmitter. Polarity should again be observed when installing this battery pack.
Please dispose of all batteries as specified by the legislator according to the Closed Substance Cycle and Waste Management Act or country regulations.
WARNING ! MAKE SURE THE CORRECT BATTERY POLARITY IS OBSERVED!
WARNING ! INCORRECT BATTERIES MAY DAMAGE THE UNIT USE ONLY THE SPECIFIED BATTERIES

SETTING UP THE IWTxT WIRELESS TRANSMITTER

The IWTxT instrument is shipped in a default configuration which allows the unit to connect with any default IWR receiver unit and transmit the measured 4-20 mA signal every 1 minute simply by switching the unit on by fitting the battery.
If a different update rate is required, or a different network frequency channel is required these parameters can be selected using the 12-way DIP Switch as detailed below:

Dip Switches 1, 2, 3 & 4 on the 12 -way Dip Switch select the RF Network the IWTxT will transmit on. The default network for both the IWTxT transmitter and IWR receiver is network 1.

Switches 5, 6, & 7 select the Transmission rate of the unit. This effectively sets how often the 4-20 mA value is sent to the receiver. Note that selecting a transmission rate of below 1 minute substantially reduces the battery life. At 1 and 5 second rate, a power save option is available (on by default) that changes the transmit time to every 30 seconds if the IWR is switched off or out of range for more than 3 minutes. This option can be changed using the IWT-Set or IWUConfig program.

Switches 8, 9 and 10 set the Channel Number of the transmitter. This is used with the 5 channel receiver unit (IWR-5) to select which Temperature transmitter is linked to which 4-20mA or 1-5Vdc output channel. IWT-Set or IWUConfig can be used to set channel if 8,9,10 are on, up to channel 128.

Switches 11 and 12 control the settling time of the 4 – 20 mA transmitter. This is the time that the transmitter is powered up from the transmitter supply before a reading is taken.

The IWTxT transmitter is now set up and ready to be used. Install the unit as required and remove the pull tab from the battery terminal to switch it on. Pushbutton switch S1 can be pushed to force the unit to transmit its current mA value and LED 1 will flash twice if the transmission has been received and acknowledged by an IWR receiver unit.
If the unit has successfully transmitted the output of the connected receiver unit will output a value reflecting the 4-20 mA level of the transmitter connected.

Connections

Battery life
The update rate and settling time affects how long the Excitation and Wireless batteries will last. The following gives the battery life in days with various configurations.
4-20 mA Transmitter Excitation Battery Life 2 off PP3 10.8 V Lithium Thionyl Chloride batteries in series (assume 1000 mAh capacity)

So, with a settling time of 0.5 seconds, and a sleep time of 120 seconds, the expected excitation battery life is 882 days.

Wireless Transmitter Battery Life
AA Lithium Thionyl Chloride battery (assume 1000 mAh capacity)

So, with a settling time of 0.5 seconds, and a sleep time of 120 seconds, the expected AA battery life is over 6 years.

TROUBLE-SHOOTING GUIDE

battery terminal. The battery is not installed correctly. The battery needs replacing.
LED1   only   flashes   once   when   S1           is pressed| IWR receiver not switched on.

IWR receiver is not set up for the same RF network.

IWR   receiver   not   within   range   of         the transmitter.

If an IWR-1 receiver is used, ensure that the transmitter is set to Tx Channel 1

Output from the IWR receiver isn’t equivalent to the 4-20mA transmitter being monitored| IWR receiver set up incorrectly, see IWR user manual for further details.

Check that the green external LED on the receiver is flashing when the transmitter push button is pressed as the receiver may be out of range.

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SYSTEM PART NUMBERS

SPECIFICATIONS

System Performance|
---|---
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Accuracy (non-linearity & hysteresis)| <±1.0 %
Setting Errors| Zero & Full Scale, <± 1.0%
 |
 |
 |
Media mV ac range| 0 to 500mV ac (depending on range selected)
Ambient Temperature| -20 to +80 °C
Storage Temperature| -20 to +80 °C
 |
Weight| 310 g
RF Transmitter| Contains FCC W70MRF24J40MDME
Power Requirements| Lithium Thionyl Chloride C 3.6 V Cell
Battery Life| 5 Years (10s transmission rate)
 |
Dimensions| 79 mm x 79mm x 52mm (L x W x D)
Mounting| Any Orientation

United States FCC
This equipment has been tested and found to comply with the limits for a Class B 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 the 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 into an outlet on a circuit different from that which the receiver is connected
• Consult the dealer or an experienced radio/TV technician for help

Warning: Changes or modifications not expressly approved by Cynergy3 could void the user’s authority to operate the equipment.

RF Exposure
Contains FCC ID: W70MRF24J40MDME

In this equipment, the antenna supplied is a PCB antenna and an alternative antenna must not be used.
Caution: To satisfy FCC RF Exposure requirements for mobile and base station transmission devices, a separation distance of 20cm or more should be maintained between the antenna of this device and persons during operation. To ensure compliance operation at closer than this distance is not recommended. The antenna used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. No other antenna may be used with this equipment other than the PCB antenna supplied with this equipment.
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of the type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.
The MRF24J40MD/ME wireless module used in this equipment has been tested and is in conformity with the essential requirements and other relevant requirements of the RED Directive 2014/53/EU. That module is in conformity with the following standards and/or other normative documents:

EN 301 489-1 V2.2.0

EN 301 489-17 V3.1.1

EN 301 489-17 V3.2.0

| (3.1(b))
Radio| EN 300 328 V2.1.1| (3.2)

Sensata Technologies, Inc. (“Sensata”) data sheets are solely intended to assist designers (“Buyers”) who are developing systems that incorporate Sensata products (also referred to herein as “components”). Buyer understands and agrees that Buyer remains responsible for using its independent analysis, evaluation and judgment in designing Buyer’s systems and products. Sensata data sheets have been created using standard laboratory conditions and engineering practices. Sensata has not conducted any testing other than that specifically described in the published documentation for a particular data sheet. Sensata may make corrections, enhancements, improvements and other changes to its data sheets or components without notice.
Buyers are authorized to use Sensata data sheets with the Sensata component(s) identified in each particular data sheet.

HOWEVER, NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO ANY OTHER SENSATA INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY THIRD PARTY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT, IS GRANTED HEREIN. SENSATA DATA SHEETS ARE PROVIDED “AS IS”. SENSATA MAKES NO WARRANTIES OR REPRESENTATIONS WITH REGARD TO THE DATA SHEETS OR USE OF THE DATA SHEETS, EXPRESS, IMPLIED OR STATUTORY, INCLUDING ACCURACY OR COMPLETENESS. SENSATA DISCLAIMS ANY WARRANTY OF TITLE AND ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT, QUIET POSSESSION, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS WITH REGARD TO SENSATA DATA SHEETS OR USE THEREOF.
All products are sold subject to Sensata’s terms and conditions of sale supplied at www.sensata.com SENSATA ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR THE DESIGN OF BUYERS’ PRODUCTS. BUYER ACKNOWLEDGES AND AGREES THAT IT IS SOLELY RESPONSIBLE FOR COMPLIANCE WITH ALL LEGAL, REGULATORY AND SAFETY-RELATED REQUIREMENTS CONCERNING ITS PRODUCTS, AND ANY USE OF SENSATA COMPONENTS IN ITS APPLICATIONS, NOTWITHSTANDING ANY APPLICATIONS-RELATED INFORMATION OR SUPPORT THAT MAY BE PROVIDED BY SENSATA.
Mailing Address: Sensata Technologies, Inc., 529 Pleasant Street, Attleboro, MA 02703, USA.

CONTACT US
+44 (0)1202 897969
c3w_sales@sensata.com
+1 310 561 8092
+1 866 258 5057
c3w_sales@sensata.com

References

• Home | Cynergy3
• Sensata Technologies: Sensing is What We Do

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