Use the Analogue Wireless Point to Point WP2P system to send the water pressure signal from the end of a centre pivot to the pump’s VSD controller.
Connect a 4-20mA sensor at one end, the analogue WP2P system then transmits the 4-20mA signal to the other end over a low power digital radio link.
For some applications, you also need to know the water flow, the level of a remote reservoir or the speed of a VSD pump – all this can be provided with the Analogue WP2P system.
Each Analogue WP2P module provides one analogue (0-20mA) input, one analogue (0-20mA) output together with 2 switch inputs and 2 relay outputs.
The WP2P analogue interface supports the industry standard 4-20mA signal which is used by many pressure, level and temperature sensors and industrial equipment such as Variable Speed Drive (VSD) and PLC controllers.
Using 900MHz digital modulation technology, the Analogue WP2P modules transmit these 4-20mA signals up to 4km when using appropriate high gain antennas. There is also a link status LED that confirms the comms link is OK, and radio repeater modules are available to extend the range.
The analogue output signal can be used to show flow, level, pressure or even be integrated into a PLC control system.
We also have suitable DC power supplies for the WP2P systems. Choose from plug packs, power packs, solar or even a 110V AC input option which is ideal for centre pivot power supplies. If the control panel has an existing 12V DC supply, then a DC power cable with a 2.1mm jack can be used.
Installing the analogue WP2P on the end of the pivot, you will need to use an omni-directional antenna (whip) and ensure that it is mounted high enough that the pivot structure does not come between the WP2P antenna at the pump station. Also check there is no vegetation etc that would interfere with the communications as the pivot moves through its entire rotation.
Sending a 4-20mA water pressure from pivot to pump can be achieved with our analogue WP2P.
The products required for this project are:
Qty 1x WP2P Analogue system – Part Number PD8812-WP2P-A (includes two WP2P modules)
Qty 2x 900MHz Whip antennas – Part Number PD9241
Qty 1x Power supply – Plug Pack – Part Number PD5412 (for the pump shed)
Qty 1x Power supply – 110V AC Power Pack – Part Number PD5413 (for the pivot)
Our other wireless solutions, such as our popular Digital WP2P, supports digital inputs and relay outputs which provide an on/off capability, ideal for when 4-20mA signals are not required.
If you need to remotely start or monitor your veggie growing facility, we are sure to have a 4G cellular or radio system to suit.
The DATRAN Australia 4G cellular controllers and low power digital radio systems are used in many industries including vegetable growing. These systems help provide you with remote control and monitoring and can be used for both Indoor or outdoor vegetable growing operations.
The following is a selection of the typical uses for veggie growers of our wireless systems:
Pump control
Remotely start and stop the water pump and get a text message if the pump faults.
We also have a wide range of long range antennas and power supplies to best suit your project and requirements. This includes custom solar power solutions and radio repeaters to increase the range.
Veggie growing is an essential industry – use our wireless systems for early notification of problems and the convenience of remote control.
Please get in touch now for more information on our:
All our cellular systems are 4G so they are not affected by the recent closure of the 3G cellular networks in Australia.
Effective monitoring of power, ventilation and temperature helps prevent tragic damage to the animals, the associated financial losses and the potential fines that would be incurred.
The incoming mains voltage can be monitored by a phase failure relay with an auxiliary alarm contact. This normally open alarm contact is wired into an SMS Lite input.
The temperature sensor is typically an electronic meter with an alarm contact which is mounted in the electrical cabinet. However, even a mechanical thermostat that closes a dry contract at the configured temperature level, could also be used.
the SMS Lite will remain operational for several hours during a power outage. This allows the fault situation to be monitored while corrective actions are taken to ensure animal welfare is maintained.
The SMS Lite has a supply voltage monitoring feature which automatically sends a text message when it is low. The voltage can also be checked at any time with a simple “STATUS” text message to the SMS Lite.
Every brewer is looking for quality and consistency of their final product. This applies to small scale home brewers, microbreweries and the big players.
The 4G SMS Lite has been used by a local brewery to monitor process instrumentation and send SMS alarms should things go wrong.
The SMS Lite monitors these key parameters allowing engineers and production personnel to respond quickly to incidents and helps prevent wastage or problems.
The SMS Lite inputs are wired to your instrumentation or controller via a relay or switch closure.
There are four inputs on the SMS Lite allowing you to monitor four process signals or parameters.
The SMS Lite’s two relay outputs are controllable by text messages and could be used to activate warning signs, operate a device or even generate a reset signal.
Getting beer production wrong leads to wastage, poor taste, financial losses and customer loyalty damage. Using our SMS based systems helps you stay informed and provides remote control options by sending a text message to many people.
Other popular signals for a brewery monitoring system can include:
Security
Monitor the control room door and the security alarm system. Help prevent unauthorised access and allows you to get alerts after hours.
Power
Monitor the mains power, phase fail, backup generator control, low water pressure signal etc.
Fermentation tanks
Monitor the temperature and pH alarm signal during the fermentation and filtration processes
Boiling
Temperature and volume monitoring ensures the desired level of flavour and bitterness
Fermentation
Temperature and pressure monitoring ensures the correct alcohol level
Carbonation
Monitor temperature and carbonation levels helps guarantee the flavour of the recipe
Our alternative 4G system, the SMS Controller, also has 4-20mA analogue inputs and outputs. This gives you even more monitoring and control options. It is programmable to perform logical control and time based activities via “SMS Workbench”, a dedicated downloadable configuration tool.
Irrigation systems have long been used for dust suppression. IPCs were selected for this project as it needed remote control, had a limited site water supply and the geographic constraints needed radio communications.
The DC latching solenoid controlled by each IPC operates several small end guns to provide dust suppression over a large, wetted area. Being solar powered, the IPCs do not require the installation of power or control cables. The smart irrigation scheduling of the IPCs allow each bank of sprinklers to operate individually and keep the instantaneous water use within the sites acceptable limit.
DATRAN Australia is also involved in providing monitoring and control solutions to the mining industry.
The robust, reliable and solar powered IPCs and the sophisticated IMS web app can provide individual sprinkler control and irrigation scheduling for both agricultural and industrial applications.
The IMS app can also show water tank levels from our IoT TLM – tank level monitor.
The TLM does not use the cellular network and can be installed in remote areas without cellular coverage. The low power LoRa radio in the TLM communicates to an IoT gateway which plugs into your internet modem/router. Advanced options include alarms for tank level, rate of change for early leak detection, and automatic pump control.
The SMS Controller P2P (Point to Point) mode is an innovative feature that automatically sends the digital and analogue (4-20mA) signals to and from its partner SMS Controller using text messages.
The text messages are initiated based on a configurable polling period ranging from every minute to once a week. This allows you to maintain I/O visibility whilst minimising the number of texts sent.
The P2P mode can be used in many applications where running a cable between sites is too hard, too expensive and where radio systems are impractical. In many ways the P2P mode operates like our Wireless Point to Point WP2P systems but uses texts over the 4G network instead of radio.
For applications using just digital I/O, text messages between SMS Controllers will be initiated each time a digital input changes state. We still recommend the polling period is used for these digital systems to keep the I/O synchronised frequently.
The P2P mode is ideal for applications with slow changing I/O. There is always a delay in sending text messages across the cellular networks so the P2P mode will not suit real time control loops or PID control etc.
The P2P mode is configured in SMS Messenger the dedicated SMS Controller app. Both partner SMS Controllers must be set as “SMSC-P2P” device types in the address book settings.
The polling mode must be enabled as this is used to periodically send texts between the controllers. Practically we also suggest that the SIM cards and accounts are with the same telco as this will help reduce the potential for network message delivery delays.
Comms fail between the partner SMS Controllers is also monitored. A digital output is configured which will activate and turn on after a configurable time.
The steps required to configure the SMS Controller are outlined in the user guide.
Regular text alerts to operators in the address book can also be used in P2P mode to maximise application use.
The minimum requirements to use the P2P mode are SMS Controller firmware v2.06 and SMS Messenger app v1.5.7 or later.
And remember, SMS Controllers can also send text messages to other SMS Controllers to turn their digital outputs turn on. This is subtly different to the P2P mode. SMSC to SMSC texting is configured in SMS Messenger app using “SMSC” Device type in the address book.
We are always looking for ways to make using our products easier and these videos and the online help are full of useful tips.
Our 4G cellular products have an added extra level of complexity as cellular signal coverage, international telco providers and SIM cards are involved.
This will help you with initial set up, operation, firmware upgrades and now troubleshooting.
This SMS Lite troubleshooting video covers the fault code displays and shares our expertise having supplied hundreds of SMS Lites to customers throughout Australia and New Zealand.
There is also an extensive set of help and FAQs available on our website support page.
These cover everything from selecting power supplies and antennas to SIM card requirements.
The user manual now features a QR code than will take you directly to this location: https://qtech.co.nz/troubleshooting-sms-lite/
Our powerful SMS Controller also has a YouTube playlist.
A recent SMS Controller video is the use of SMS Messenger, the software app used to configure and program the powerful features of the SMS Controller.
Mining is a complex operation that often needs remote control and alarm solutions.
DATRAN Australia’s 4G cellular and low power radio systems are widely used in the Australian mining sector. These systems can also be solar powered using our custom RSS solutions.
Typical uses and applications include the following:
Remotely operate warning signs remotely. View the status from several kms away and remotely change stop to go.
Pump Faults or Mains Power Fail
Get advance warning alarms if a critical pump faults, the mains power goes out or the UPS kicks in etc.
Traffic Light Override
Projects have included integration with a traffic light controller to enable emergency services to force traffic lights to red.
Site Security Alerts
Get a text message every time the server room door is opened, or the storage room is accessed.
Whilst mines are in very remote regions of Australia many now have their own cell towers installed. All our cellular products are 4G so they are not affected by the recent closure of the 3G network.
We also have a range of high gain antennas, power supplies and DIN rail mounts for your solution.
