TWTG DS-RT-02-XX Ratiometric Transmitter User Manual

June 9, 2024
TWTG

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TWTG DS-RT-02-XX Ratiometric Transmitter

TWTG-DS-RT-02-XX-Ratiometric-Transmitter-product

TWTG NEON

NEON Product Introduction

  • NEON stands for a standardized approach to collecting data points from the operational environment and in doing so, creates a general approach to integrated data collection within existing IT ecosystems.
  • The TWTG NEON product range supports all industrial customers moving towards LoRaWAN as the Industrial IoT network of the future.
  • The LoRaWAN network gives industrial operations a secure solution, which scales up to tens of thousands of sensors, covers complete sites with only a small amount of gateways, and best of all – the low-power approach means that the lifetime of the NEON products is extended dramatically.

Related ProductsTWTG-DS-RT-02-XX-Ratiometric-Transmitter-
fig-1

What you will need

  • In order to deploy the NEON product range, a compatible and operational LoRaWAN network architecture is required.
  • This manual does not contain any instructions on how to set up and install LoRaWAN networks.
  • TWTG offers radio network planning and IT architecture design services to fully integrate the products in the NEON product line.

Getting Started

Compatibility of this manual

  • This manual is applicable to version 1 of the NEON Ratiometric Transmitter, NEON Pressure Sensor and NEON Pressure Gauge. This manual is meant to be used with products from a specific production batch;
  • See Serial Number for an explanation on how to retrieve the production batch code from the serial number;
  • See chapter Data Matrix Code to determine the revision of the product.

Related DocumentsTWTG-DS-RT-02-XX-Ratiometric-Transmitter-
fig-2

What is in the box

When the product is delivered check the components for damage and whether all box items mentioned below are included.TWTG-DS-RT-02-XX-Ratiometric-
Transmitter-fig-3TWTG-DS-RT-02-XX-Ratiometric-
Transmitter-fig-4

Product Specifications RT

TWTG-DS-RT-02-XX-Ratiometric-Transmitter-
fig-5 TWTG-DS-RT-02-XX-Ratiometric-Transmitter-
fig-6

Certifications

TWTG-DS-RT-02-XX-Ratiometric-Transmitter-
fig-7

Product Type Identification

NFC

The NFC label is located in the identification sticker and programmed with the serial number of the device. The serial number read from the NFC can be used as a unique identifier for provisioning and registration.

Data Matrix Code

The Data Matrix Code label also represents the serial number of the device. The serial number read from the QR code can be used as a unique identifier for provisioning and registration. See Serial Number for a detailed label description.

Product Dimensions

TWTG-DS-RT-02-XX-Ratiometric-Transmitter-
fig-10

Warnings

ATEX / IECEx

Specific Conditions of Use

WARNING – POTENTIAL ELECTROSTATIC CHARGING HAZARD

  • The product shall be installed in such a way that the risk for electrostatic discharges is minimised;
  • When the equipment is used in hazardous locations, avoid any actions which generate electrostatic discharge;
  • Cleaning: The equipment shall only be cleaned using a wet cloth;
  • Installation: Touch non-metallic parts with an insulating object;
  • Environment: Do not use the product in environments with powerful charge generating processes.

Installation

  • This equipment shall be installed according to NEN-EN-IEC 60079-14 and the installation instructions;
  • This equipment is intended for fixed installations only;
  • This equipment is intended for use in restricted access areas only.
  • To comply with FCC/IC RF exposure limits for general population / uncontrolled exposure, the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.
  • WARNING – DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE IS PRESENT
  • Under no circumstances shall the equipment enclosure be opened within a hazardous area

Operation

  • The connector of this equipment shall not be connected when an explosive atmosphere is present;
  • This equipment shall only be used in environments where electromagnetic field strength is limited according to NEN-EN-IEC 60079-14;
  • This equipment is only intended for use in combination with NFC Forum Tag 2 Type technical specification compatible readers;
  • This equipment shall only be used within ambient temperatures between -40 °C and +70 °C.

Service

  • This equipment shall only be opened by TWTG or by a competent instructed person;
  • The battery is serviceable by said persons;
  • Only replace the battery in a non-hazardous location;
  • Only use Tadiran S1P1/SL-2780/323/TWT battery assembly;
  • Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
  • If damage to the enclosure is evident, a trained and competent person shall be immediately informed, who shall remove the device from service as soon as possible;
  • If the equipment is or has been in contact with chemical materials, clean it appropriately.

Warnings

 ATEX / IECEx

Specific conditions of use

CAUTION – POTENTIAL RISK OF ELECTROSTATIC DISCHARGE

  • The product must be installed in such a way as to minimize the risk of electrostatic discharge;
  • When the equipment is used in a hazardous environment, strictly avoid any action that generates electrostatic discharge
  • Cleaning: The equipment should be cleaned only with a damp cloth;
  • Installation: Touch non-metallic parts only with an insulating object
  • Environment: Do not use the product in environments generating strong electrical charges.

Installation

  • This equipment must be installed in accordance with NEN-EN-IEC 60079-14 and the installation instructions;
  • This equipment is intended for fixed installation only;
  • This equipment is only intended for use in restricted access areas.

CAUTION – DO NOT OPEN IN AN EXPLOSIVE ATMOSPHERE

  • Under no circumstances should the equipment enclosure be opened in a hazardous area.

Operation

  • The connector of this equipment should only be used with external equipment as indicated in the “product matrix”;
  • The connector of this equipment must never be connected in an explosive atmosphere;
  • This equipment should only be used in an environment where the intensity of the magnetic field is limited in accordance with EN 60079-14;
  • This equipment is only intended to be used in combination with compatible readers whose technical specifications comply with the NFC Type 2 tag standard;
  • This equipment should only be used at temperatures between -40° C and +70° C.

Maintenance

  • This piece of equipment should only be opened by TWTG or a competent person and according to the user guide;
  • The battery can be refurbished by these people;
  • Only replace the battery in a safe place;
  • Only use Tadiran S1P1/SL-2780/323/TWT drum set;
  • If the case is damaged, immediately inform a competent person to come and recover the equipment;
  • If the equipment is (or has been) in contact with chemical substances, clean it appropriately.
Output parameters
  • The maximum output parameters are limited by the NEON Transmitter.
  • When selecting the sensor to be used with the transmitter, the following values must be taken into account:TWTG-DS-RT-02-XX-Ratiometric-Transmitter-fig-11
General

Transport and Storage

  • The product must be kept in its original packaging until it reaches the installation site to prevent damage while in transit;
  • The storage location must be dry;
  • The product must not be exposed to vibrations or impact during storage.

Warranty

  • The warranty covers the period noted on the quotation;
  • If the device doesn’t function as documented, the customer should contact TWTG and provide the following information;
  • Model specification;
  • Serial number;
  • Circumstances under which the problems developed;
  • Any previously generated data;
  • The party responsible for the costs of solving the problem shall be determined by TWTG on the basis of an investigation conducted by TWTG.

Warranty will be void in case of

  • Malfunction due to ignoring the design specifications;
  • Malfunction due to modification of the product carried out by the user;
  • Deferred maintenance of the product or the installation location.

Output parameters

  • The maximum output parameters are limited by the NEON Transmitter. When selecting the sensor to be used with the transmitter, the following values must be taken into account:TWTG-DS-RT-02-XX-Ratiometric-Transmitter-fig-12

General information

Transport and storage

  • The product must be kept in its packaging until it reaches the installation site to avoid any damage during transit;
  • The storage place must be dry;
  • The device must not be exposed to vibrations or shocks during transport and storage.

Warranty

  • The warranty covers the period indicated on the estimate;
  • If the device does not work as expected, the customer should contact TWTG and provide the following;
  • Model specifications; – Serial number;
  • The circumstances under which the problems arose;
  • All previously generated data;
  • The party responsible for the costs of resolving the issue will be determined by TWTG based on a private investigation conducted by TWTG.

The warranty will be voided in the following cases:

  • Non-compliance with model specifications;
  • Modification of the product made by the user; 
  • Maintenance not in accordance with product specifications;
  • Operation in a location not conforming to specifications.

Provisioning

User Interface

The product contains one Light Emitting Diode (LED) to communicate with the user. In order to interact with the device a button is present on the right side of the NFC label.

Operating the Device

Read device statusTWTG-DS-RT-02-XX-Ratiometric-Transmitter-
fig-14

Press and Release the button:

  • Green: The device is activated
  • Red: The device is deactivatedTWTG-DS-RT-02-XX-Ratiometric-Transmitter-fig-15

Device ActivationTWTG-DS-RT-02-XX-Ratiometric-Transmitter-
fig-16

Press & hold the button and the device will immediately show its status:

  • Red: Deactivated, or
  • Green: Already Activated
  • Note: Release the button if it’s already activated otherwise the deactivation procedure will start.TWTG-DS-RT-02-XX-Ratiometric-Transmitter-fig-17

Hold the button for 5 more seconds to start activation:

  • Blinking White: Connecting to the Network

*Within a typical maximum of 3 minutes the device will show:**

  • White: Sending activation message, or
  • Red: Network failure

*Within a typical maximum of 3 minutes the device will show:**

  • Green: Activation succeeded, or
  • Red: Network failure

Notes:

  • All timeout and retry values are valid for the default configuration, the maximum timeout might be longer when a process is performed repeatedly due to RF duty cycle limitations.

Device DeactivationTWTG-DS-RT-02-XX-Ratiometric-Transmitter-
fig-18

  1. Press and hold the button, and the device will show:
    • Green: Activated
    • Red: Already Deactivated, or
    • Note: Release the button if it is already deactivated otherwise the activation procedure will start.
    • Hold the button for 5 more seconds if the device is activated:
  2. Red: Deactivation Succeeded
    • NOTE: The deactivation procedure will always succeed.
    • An attempt for sending a status message will be performed.
    • This will not be shown as a blinking white LED.

Installation

Precautions

WARNING

  • Avoid placing wiring close to noise sources such as large motors or power supplies;
  • To comply with FCC/IC RF exposure limits for general population / uncontrolled exposure, the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter;
  • Only connect the M12 connector to the Ratiometric Transmitter when there is no explosive atmosphere present;
  • The equipment must be installed in accordance with EN 60079-14.

Mounting Bracket Dimensions

Installation Methods

Installation using mounting holes

  • Place the bracket against the (flat) desired surface and use the screw holes or slots to fix in place.
  • Note: Slots and screw holes are designed for M4 fasteners.

Installation using threaded holes

  • Note: Threaded hole accepts M5 bolts.TWTG-DS-RT-02-XX-Ratiometric-Transmitter-fig-21

Installation using a band clamp

  • The Neon Ratiometric Transmitter can be mounted to a pole using a 14 mm wide band clamp, other sizes are not recommended.

Procedure:

  1. Place the band clamp through the bracket;
  2. Place the band clamp around the pole and cut to size;
  3. Place the band clamp through the adjustable tightener and fold around the bottom with a plier;
  4. Place the band clamp around the pole with the (adjustable) tightener and fix it in place.
  • Figure 8: Installation using a band clamp

Product Functionalities

  • A detailed description of setting-up communication and configuring device settings can be found in “Communication protocol”, refer to table 2. Related documents.

Application Event Message

  • The Ratiometric Transmitter measures and reports the pressure either by set intervals (a timer-based trigger) or a condition-based trigger.TWTG-DS-RT-02-XX-Ratiometric-Transmitter-fig-23

Event-triggers

  • Event messages are triggered on one of the following triggers.

Timer (periodic):

  • The timer trigger is configurable through the following configurations:
  • pressure_measurement_interval_seconds
  • Interval in seconds, at which the pressure sensor is read.

periodic_event_message_interval

  • Interval in the number of measurements at which the application event messages are periodically sent. The periodic counter is reset on every event message.

Condition:

  • A condition-based trigger can be either of the following triggers:

Above

  • If the maximum pressure is above the pressure_threshold then the condition is true. A transition of the condition from false to true or true to false will trigger an event message.

Below

  • If the minimum pressure is below the pressure_threshold then the condition is true. A transition of the condition from false to true or true to false will trigger an event message.

Increasing

  • The condition is true when the current pressure is at least pressure_threshold higher than the minimum pressure in the measurement_window (The maximum number of measurements to observe delta pressure to trigger an event). A transition of the condition from false to true or true to false will trigger an event message.

Decreasing

  • The condition is true when the current pressure is at least pressure_threshold lower than the maximum pressure in the measurement_window (The maximum number of measurements to observe delta pressure to trigger an event). A transition of the condition from false to true or true to false will trigger an event message.

Content application event message

Pressure

  • The connected sensor pressure in units of 0-365.6 PDI (0-25 Bar):
  • Maximal;
  • Average;
  • Minimal.

Trigger

  • Source of the trigger for the application event message: timer” (0);
  • condition_0″ (1);
  • condition_1″ (2);
  • condition_2″ (3);
  • condition_3″ (4).

condition_n

  • The current state of each condition.

Device Status

  • Besides reporting the application pressure as discussed previously, the Ratiometric Transmitter also reports on the device status itself. This is done through a device status messages. A device status message is sent periodically and includes a range of device health parameters, including the following:
  • event_counter;
  • battery_voltage;
  • PCB temperature;
  • tx_counter;
  • avg_rssi;
  • avg_snr.
  • See “Communication Protocol” in Related documents for a detailed explanation.

Default Configuration

  • The Ratiometric Transmitter is delivered with a default configuration. The default configuration includes:
  • Measurement interval of 15 mins;
  • Event-based message at the time of each periodic trigger with an interval of 15 measurements. (15 * 15 = 225 mins);
  • Device status message interval of 24 hours;
  • Enabled confirmation message on all messages.
  • See “Communication Protocol” in Related documents for a detailed explanation of all default configuration values.

Maintenance

Battery Specifications

  • Note: Applicable to default configuration. Battery lifetime depends on average ambient temperature, network quality and device configuration.

Battery Replacement

  • The battery can be replaced using the battery replacement kit. See Accessories and Spare Parts. This kit consists of the following parts:
  • 1X Tadiran S1P1/SL-2780/323/TWT
  • 4X O-Ring
  • 1X Gasket

Required tools

  • Torque screwdriver with TX10 bit;
  • See Assembly of device for torque settings;
  • ESD strap.

IMPORTANT: ESD Sensitive Electronics

  • The product shall be installed in such a way that the risk for electrostatic discharges is minimized.
  • Take proper precautions such as a grounded wrist strap and avoid touching the electronics board

Disassembly of device

  • WARNING – DO NOT OPEN WHEN AN EXPLOSIVE ATHMOSPHERE IS PRESENT
  • This equipment shall only be opened by TWTG or by a competent instructed person;
  • The battery is serviceable by said persons;
  • Always disconnect M12 connector from Transmitter before replacing battery assembly
  • Step 1: Remove the four M3 screws and remove the bottom housingTWTG-DS-RT-02-XX-Ratiometric-Transmitter-fig-33
  • Step 2: Before removing the battery assembly, disconnect the battery connector (marked in red)TWTG-DS-RT-02-XX-Ratiometric-Transmitter-fig-34
  • Step 3: Place the new battery assembly. Use the rib on the battery cradle (marked in red) to align with the designated cut out in top housing and connect the new battery connector

Built-In Self-Test Procedure

  • When the device is deactivated a built-in self-test is performed upon insertion of the battery. This test is not executed when the device is already activated. Use the deactivation sequence as described in Device Deactivation and reinsert the batteries if a self-test is needed.TWTG-DS-RT-02-XX-Ratiometric-Transmitter-fig-28

  • After successful replacement of the battery the device will go into self test mode. This mode is activated for 30
    seconds;

  • A BLUE LED will show after inserting the battery;

  • If no LED is shown, check the battery and / or device;

  • Start the test;

  • Press and Release the button;

  • Test Results;

  • LED turns bright WHITE for 5 seconds. Self test passed;

  • LED turns RED, self test failed. Check device;

  • No LED, no response from device. Check device.

  • After pressing the button once and passing the self-test the device will leave the self-test mode. Pressing the button again will show the device status, as explained in Read device status.

Assembly of device

IMPORTANT – USE THE SPECIFIED TORQUE SETTINGS

  • Use a torque screwdriver to verify the applied torque;
  • Failure to do so can result in water ingress;
  • Improper assembly will void the warranty.
  • Step 4: Replace the 4 o-rings surrounding the screws and the gasket in the outer edge of the bottom housing
  • Step 5: Place the bottom housing back onto the top housing. For correct orientation; Make sure that the bottom housing grounding plate is aligned with the top housing M12 connector
  • Step 6 : Tighten the four M3 screws to fix the bottom housing. Use a torque screwdriver to set the maximum torque to 1 Nm

Accessories and Spare Parts

TWTG-DS-RT-02-XX-Ratiometric-Transmitter-
fig-32

EU Declaration of Conformity

This product complies with the following standards:

  1.  ATEX Directive (2014/34/EU):
    • EN 60079-0:2012 +A11: 2013
    • EN 60079-0: 2018
    • EN 60079-11: 2012
  2. Radio Equipment Directive (2014/53/EU):
    • EN 300 220-1 V3.1.1
    • EN 300 220-2 V3.2.1
    • EN 301 489-1 V2.2.3
    • EN 301 489-3 V2.1.1
    • EN 61010-1: 2010 + A1:2019 + A1:2019/AC:2019
    • EN 62311: 2020
    • EN 60529: 1991 + A1:2000 + A2:2013
  3. WEEE Directive 2003/1008/EC
  4. RoHS (2011/65/EU)

FCC and ISED Declarations

This device complies with part 15 of the FCC Rules and to RSS of Industry Canada. Operation is subject to the following two conditions:

  1. this device may not cause harmful interference, and
  2. this device must accept any interference received, including interference that may cause undesired operation.
  • This device complies with Industry Canada license-exempt RSS standard(s). Exploitation is authorized under the following two conditions:
  • the device may not cause interference, and
  • The user of the device must accept any radio interference experienced, even if the interference is likely to compromise its functioning
  • Note: This equipment has been tested and found to comply with the limits for a Class B digital 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 to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.
  • This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de Classe B est conforme à la norme Canadienne ICES-003. CAN ICES-003(B) / NMB-003(B)

Revision History

Revision Date Author(s) Description
A1 28-10-2022 SvW Concept version
A2 24-11-2022 WK Updated FCC/ISED declaration

NEON-Ratiometric-Transmitter_User-Manual_DS-RT-02-xx_4001_A2

Documents / Resources

| TWTG DS-RT-02-XX Ratiometric Transmitter [pdf] User Manual
DS02, 2ATYF-DS02, 2ATYFDS02, DS-RT-02-XX Ratiometric Transmitter, DS-RT-02-XX, Ratiometric Transmitter, Transmitter
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