Deeter Announce Free Wireless Sensor System Site Survey Service

  

The Deeter Group, market leaders in the design, development and manufacture of electronic sensors and control systems, announce the introduction of a free site survey service for customers considering the implementation of a Deeter or any other wireless sensor network operating in the 2.4GHz ISM band.

 

Deeter’s own wireless sensor networks may be used to remotely monitor temperature, pressure, flow, humidity,  liquid level, float or proximity switches or any  sensor connected to a 4-20mA control loop. Deeter wireless sensor networks are very versatile and can range from a simple single sensor measurement to complex multi sensor and multi-vendor systems with mixed sensor inputs and routers to extend wireless range and offer self-healing mesh networks.

 

With the availability of a specially designed Wireless Survey tool, a free survey carried out by the Deeter Group will allow potential customers to confirm that their installation environment is suitable for reliable wireless communication and determine the optimum locations for sensor transmitters, routers and receiver base stations.

 

Alan Marsh, Sales Manager at Deeter Group Ltd. Comments; ”We have had a great deal of interest in our wireless sensor networks from potential new customers and existing users of conventional cable connected sensor and process control systems. The most common reasons expressed for any reluctance to replace costly to install and damage-prone cabled systems with wireless are reliability and security. Our wireless systems have high security encrypted signals and robust wireless communication. To demonstrate this we now offer a free site survey. A fast and reliable way to demonstrate the suitability of our wireless sensor systems actually at our customer’s sites and to offer guidance on how to get the best results, whether from a single sensor or a complex self-healing mesh network.”

 

To get the best performance out of a wireless sensor system it is essential to ensure that all sensors (Deeter Senders) and receivers (Deeter Base stations or Routers) are optimally located and that other radio emitters, which may cause interference, are kept to a minimum. The most reliable way to ensure this is to use a Deeter Site Survey Tool, or have a free site survey carried out.

 

Depending on the scale of the intended installation following a few basic steps will make any installation proceed smoothly and ensure maximum results from the wireless network immediately.

 

Ensure a comprehensive site plan of the area or areas where the wireless sensor system is to be installed is available and identify major building obstacles such as walls, halls, elevators and floors that may block radio signals.

 

Determine the most likely locations for the receivers (Deeter Base Stations or Routers) in order that they may be connected inward to the proposed receiver or so that they can route the wireless signal onwards towards the main network connection. As a guide, receiver locations should avoid being close to metal or concrete walls and as close to the ceiling as possible.

 

For the test a Deeter Survey Tool Sender is placed where the Base Station will be situated.  The Deeter Survey Tool Base Station is then used to check the coverage and strength of the received signal, at each of the proposed locations of the sensor transmitters. In some installations repeaters or routers will be required; the survey tools will help determine the best location for them to be placed to ensure all signals are received back at the Base Station

 

For further details on the Deeter Group Wireless Survey System please contact call 01494 566 046, email [email protected] or visit www.deeter.co.uk.

 

The Deeter Group product range includes level sensors, complete wireless sensing systems, leak detectors, industrial weighing equipment, reed and proximity switches, security switches, termination assemblies, litz and magnetic wire and solar power systems.

 

About Deeter Group:

The Deeter Group is a privately owned group of companies first established in the UK in 1982 and set up to provide electronic services and products to industry. The Group comprises Deeter Engineering Services Ltd, Deeter Weighing Systems, Deeter Electronics Ltd, Deeter Electronics Inc and Deeter International Ltd. During its existence it has developed from a small local supplier to a Group of companies which trade throughout the world. Deeter now lists among its customers many large international companies and has justly earned its reputation as a supplier of quality products and services.

 

Deeter Electronics was established in 1991 as a distributor of specialist electronic products. It now supplies a range of products to customers in the UK, mainland Europe, Asia and North and South America. In addition to some sensor products manufactured within the Deeter Group, Deeter Electronics is now either an agent or distributor for a number of market leading component Brands.

 

 

For more information

Alan Marsh

The Deeter Electronics Ltd.
Deeter House
Valley Road
Hughenden Valley
HP14 4LW

T: +44 (0)1494 566046
F: +44 (0)1494 563961

E: [email protected]

W: www.deeter.co.uk

 

Deeter Group Wireless Sensor System

Background

The Deeter Group has been providing electronic services to industry since 1982. With the formation of Deeter Electronics in 1991 the company has become a major international manufacturer and supplier of control and instrumentation systems, including electronic sensors, industrial weighing equipment, reed and proximity switches, security switches, termination assemblies and other products and services to manufacturing industry.

 

A perennial problem with installing control and measurement systems in industrial environments is cabling. Installing and maintaining the reliable operation of cable networks can be very difficult in factories and larger industrial facilities where buildings may be remote. Roads, railways and even rivers may need to be crossed creating their own sets of health and safety hazards. Cable faults can easily be caused by mechanical damage and the environment resulting in costly lost production and safety issues which could result in life hazard, damage to process equipment and unnecessary plant shut-down.

 

The recent advent of compact, high reliability short range wireless devices has allowed Deeter to develop a wireless sensor system which can transform industrial control and measuring systems. Greatly reducing the cost and time required to install, increasing convenience and reliability and enabling simple relocation of sensors should factory layout change. In addition Deeter probes are battery powered removing the additional layer of installation complexity of providing mains power in remote locations for conventional measuring instruments.

 

.A Deeter Wireless Sensor System may include a number of Wireless Routers to form a wireless ‘mesh’ network. This allows signals to be automatically re-routed around any broken links in the mesh creating a built-in self-healing capability to further ensure communications reliability.

 

The Deeter Wireless Sensor System will be welcomed by control engineers in industrial and manufacturing industries such as food and beverages, cooling systems and agriculture.

 

System Applications and Features

The Deeter Wireless Sensor System was primarily designed for use in liquid level sensing, to complement the very popular existing range of Deeter float-switches and continuous level sensors. Countless other applications for the Deeter Wireless Sensor system are possible, including:

• remote monitoring of switch inputs to drive relay outputs

• converting a potentiometer input to a 4-to-20mA current loop output

• mirroring a 4-to-20mA current loop signal

• switching relays at preset input thresholds

 

The System has the following advanced features:

• Sophisticated RF Communications and Wireless Network capability

• Fully automatic operation once the system is installed

• Battery powered remote sensors

 

RF Communications

The system uses very reliable high power RF transceiver modules and rugged external antennae to achieve the best possible wireless communication range. Range can be further extended by adding one or more Deeter Wireless Routers which receive and re-transmit the signal with increased gain. The Base Station acts as the coordinator for the wireless network and operates in the 2.4GHz ISM (Instrumentation Scientific and Medical) frequency band. This allows the system to be used world-wide without requiring a site radio operating licence. Local regulations may restrict the maximum RF transmit power and Deeter provide different variants of the Wireless System devices for the USA, Canadian and European markets to satisfy these constraints. The IEEE 802.15.4 protocol used in the Deeter Wireless Sensor System allows several networks to share the same frequency without interfering with each other. The protocol uses sophisticated techniques to ensure good communications using very low power signalling. This allows the Deeter Wireless Sender or LVCS-RF (RF Liquid Vertical Continuous Sensor) probe to operate using battery power. Once the system is installed it will operate reliably for extended periods without any further intervention. When several Routers are used they form a ‘mesh’ network, and signals can be re-routed around any broken links in the mesh. Thus, the system has a built-in self-healing capability to further ensure communications reliability.

 

Wireless Range

At maximum transmission power (USA version) the distance between sensor node and Base Station may be up to 4km in an ideal, open field installation. For operation in Europe, regulations restrict the maximum transmission power and a range of up to 1000m may be possible. However, in most practical environments the radio signal will be attenuated by obstructions and by multi-path fading caused by reflections. To improve range, a clearer signal path can often be achieved by increasing the height of the antenna and Deeter supply an antenna extension kit for this purpose. A Deeter Wireless Router placed somewhere between the remote sensor and Base Station, or off to one side of the direct line between the two, will greatly extend the wireless range and up to four Routers may be used in a single system.

 

System Devices

There are four devices currently in the Deeter Wireless Sensor product range:

• Base Station

• Wireless Sender

• LVCS-RF Liquid Vertical Continuous Sensor probe

• Wireless Router

 

A basic Wireless Sensor System comprises a Base Station and a single sensor node, either a Sender or LVCS-RF. A Router may be added to the system to improve communications reliability or to extend the wireless range. Up to four Routers may be used in a single system.

The sensor nodes can accept a range of input devices to suit the application:

• Four switch inputs (Sender only)

• An analogue resistive input (Sender and LVCS-RF)

• A 4-to-20mA current-loop sensing input (Sender only)

 

The Base Station has a range of outputs to drive a wide variety of possible

devices:

• Four open-collector transistors for relay operation etc.

• 4-to-20mA current loop driver

• Serial communications output via RS232, RS485 or USB

(At present, serial communications is reserved for diagnostic data. Future

developments are expected to include data-logging features.)

 

The complete Deeter Group product range includes level sensors, industrial weighing equipment, reed and proximity switches, security switches, termination assemblies, litz and magnetic wire and solar power systems. For more information on the Deeter Group range of wireless sensing products call +44 (0)1494 566046 or visit www.deeter.co.uk

About Deeter Group:

The Deeter Group is a privately owned group of companies first established in the UK in 1982 and set up to provide electronic services and products to industry. The Group comprises Deeter Engineering Services Ltd, Deeter Weighing Systems, Deeter Electronics Ltd, Deeter Electronics Inc and Deeter International Ltd. During its existence it has developed from a small local supplier to a Group of companies which trade throughout the world. Deeter now lists among its customers many large international companies and has justly earned its reputation as a supplier of quality products and services.

 

Deeter Electronics was established in 1991 as a distributor of specialist electronic products. It now supplies a range of products to customers in the UK, mainland Europe and the USA. In addition to some sensor products manufactured within the Deeter Group, Deeter Electronics is now either an agent or distributor for a number of market leading component Brands.

 

 

Contact:

The Deeter Group
Deeter House
Valley Road
Hughenden Valley
HP14 4LW

T: +44 (0)1494 566046
F: +44 (0)1494 563961

E: [email protected]

W: www.deeter.co.uk

 

 The Deeter Electroncs Inc. market leaders in the design, development and manufacture of electronic sensors and control systems, has added a Wireless Modbus Gateway to its range of Wireless Sensor Network products.

Any users of Modbus communication protocols will find the new Deeter Wireless Modbus Gateway is a simple and cost effective way to connect a Deeter Wireless Sensor network to a Modbus system to monitor physical or environmental conditions, such as liquid levels, temperature, humidity, vibration, pressure and proximity.

The Deeter Wireless Modbus Gateway communicates with the Modbus network via a RS485 port in slave mode; it coordinates the wireless sensor network and manages data acquisition from the sensors using the IEEE 802.15.4™ wireless protocol in the 2.4GHz ISM frequency band.

A Deeter Wireless Modbus Gateway may be installed as a component of a new control or measurement system or as an extension to an existing wired sensor system in order to add wireless connected sensors.

Craig Harnish, Vice President of Sales at Deeter Electronics Inc. Comments; ”Modbus has become one of the most popular standard communications protocols used in process control and is now amongst the most commonly available means of connecting industrial electronic devices. Our new Modbus Gateway will allow customers to integrate Deeter Wireless Sensor products into existing or new control systems in locations where wireless has cost, safety and convenience advantages over conventional cable connected systems.”

Deeter Wireless products may be used indoors or outside and all are rated to IP64, have an operating temperature range of -20ºC to +70ºC and compliant to FCC part 15.

The Deeter Group’s comprehensive range of wireless sensors and network components may be used to remotely monitor temperature, pressure, flow, humidity, liquid level, float or proximity switches or any sensor connected to a 4-20mA control loop. Deeter wireless sensor networks are very versatile and can range from a simple single sensor measurement to complex multi sensor and multi-vendor systems with mixed sensor inputs and routers to extend wireless range and offer self-healing mesh networks.

For further details on the Deeter Group Modbus Gateway please call 001 330 630 3510, email [email protected] or visit www.deeterelectronicsinc.com

The Deeter Group product range includes level sensors, complete wireless sensing systems, leak detectors, industrial weighing equipment, reed and proximity switches, security switches, termination assemblies, litz and magnetic wire and solar power systems.

 

About Deeter Group:

The Deeter Group is a privately owned group of companies first established in the UK in 1982 and set up to provide electronic services and products to industry. The Group comprises Deeter Engineering Services Ltd, Deeter Weighing Systems, Deeter Electronics Ltd, Deeter Electronics Inc and Deeter International Ltd. During its existence it has developed from a small local supplier to a Group of companies which trade throughout the world. Deeter now lists among its customers many large international companies and has justly earned its reputation as a supplier of quality products and services.

 

Deeter Electronics was established in 1991 as a distributor of specialist electronic products. It now supplies a range of products to customers in the UK, mainland Europe, Asia and North and South America. In addition to some sensor products manufactured within the Deeter Group, Deeter Electronics is now either an agent or distributor for a number of market leading component Brands.

 

 

For more information

DEETER ELECTRONICS INC

466 Commerce Street,

Tallmadge,

OHIO, 44278

Tel: 001 330 630 3510

Fax: 001 330 630 3512

E: [email protected]

W: www.deeterelectronicsinc.com