Data Logging | Food Safety | OEM Development

Time clock with comprehensive features

Wave Industries has added a comprehensive time clock function to the Hawk-Eye 800, enabling it to start, run and stop processes at specific times of the day. The steps can be set up to be one time or repeated daily.

The flag controlm settings summary page allows you to view which flags are in use in the Hawk-Eye 800

Flag Control Settings Summary Page

There are 8 time clock functions the outputs of which act on Flags 191 to 198 in the flag list turning them on or off at specific times. These flags can be used to control other logic set up in the Hawk-Eye 800’s on board PLC.

This page [provides a detailed view of the timing of each flag

Selected Flag Control Settings

Any process which needs to run on a timed basis can benefit from this added function.

As with all Wave Industries products, the configuration is easy and intuitive. The Hawk-Eye 800 is becoming widely known for its innovative features, reliability, robust construction and competitive pricing.

Contact us for more information and to make an appointment with one of our experienced application engineers.

Contents of Freezer at Meals on Wheels Saved by Hawk-Eye 800

On Monday 24th October 2016 at 8:36 PM, the Hawk-Eye 800 installed at Wollongong Meals on Wheels messaged the manager and the maintenance technician that the 4 Door Freezer was now paperless chart recorder and data loggerin alarm and needed attention.

The message received by both was as follows:

“Wollongong MOW 4 Door Freezer HIGH Alarm 2 has tripped at -10 °C after 10 Minute”


The maintenance technician went to site soon thereafter and found indeed that there was a fault with a thermostat switch which was meant to turn the freezer on. He was able to bypass the switch and get the system cooling while he replaced the switch.

The system confirmed the restoration of proper freezing at 12:43AM by sending the following message to the manager and the maintenance technician

“Wollongong MOW 4 Door Freezer HIGH Alarm 2 has reset at -13 °C”


Having early warning of the freezer problem allowed the Wollongong MOW to save some $1,500 worth of frozen food. Had they not known of the problem until the next morning, the entire contents of the freezer would have had to be discarded.

Comments by the Manager of Wollongong Meals on Wheels

“I have been impressed with Hawk Eye data loggers and have found that they do have valuable information for safe Food Handling procedures, refrigeration maintenance and monitoring of refrigeration equipment.

Hawk Eye data loggers provide fast information updates to Staff and Maintenance technicians to safeguard & prevent refrigeration equipment breakdown and avoid costly loss of stock and/or Insurance company Excess fees.

Staff & technicians do need basic level of training to understand how the system operates and to set up action response plans”

Occasionally we come across organisations that have installed back to base alarms to detect their freezer and fridge failures. This is certainly an improvement over having no monitoring at all but one needs to also know how long the food has been above the desired temperature and the temperature profile before you can determine whether that food is safe to eat or not. The Hawk-Eye 800 with its live trending and reporting allows you to accurately determine whether the food has been saved or whether there was too long a delay in restoring the cooling

The Benefits of Remote Monitoring of Refrigeration

If you store food, either frozen or cold, some of your most important considerations are

  • Making sure your food temperatures are maintained at all times.
  • Maintaining your refrigeration equipment reliability
  • Ensuring refrigerant gas safety and preventing gas leaks
  • Optimising your refrigeration plant energy efficiency.

Hawk-Eye 8stalled in plant

You may have your own on-site maintenance employees or you may have a service agreement with refrigeration contractors.  In either case the ability to view, analyse and control what is happening with your refrigeration plant and your food products in real time is critical to your bottom line. Product losses, plant breakdowns, gas leaks and energy inefficiency will severely impact on profitability.

The ability to remotely monitor your cool rooms, freezers, the products contained therein and the associated refrigeration equipment, will inevitably result in improved efficiency and lower running costs. The Hawk-Eye 800 was developed to provide not only the ability to view the real time plant data locally or remotely, but also to control the plant if desired. Its remote access capability really makes it possible to securely monitor and control the plant from anywhere just as though you were on site. Examples of remote control or adjustment would be: change a set-point, increase a time delay, update user information, manually control a valve or pump

 Key Remote Monitoring Benefits after Installing the Hawk-Eye 800

Both the end user and the maintenance team will measurably benefit from the remote capabilities of the Hawk-Eye 800 once installed. Its user friendly layout, intuitive operation, easy to read dashboard, real time trending, intelligent messaging and scheduled reporting all combine to provide a cost effective yet comprehensive solution that takes remote monitoring and controlling to a new level.

Benefits for the end user.

User is able to log into Hawk-Eye 800 remotely and view what is on screen, make changes and operate the unit as though they are on site

User logged in remotely from office

  • Up to date real time information.
  • Alarms emails automatically sent when there is a problem.
  • Reports sent automatically by email according to schedules.
  • Maintenance team and end user see the same user-friendly information
  • End user can also see the plant data from anywhere in the world on their mobile phone, tablet or pc.
  • End user can make adjustments to the plant remotely.

Benefits for the Maintenance Contractor.

  • Immediate notification of alarms by email (or sms using email to sms service)
  • Remote login allows the contractor to analyse the situation with the same information as though he were on site.
  • The maintenance contractor can now prioritise his work based upon logging in to the various sites where he has had notification of alarms
  • The maintenance contractor can plan to service equipment as soon as he sees some change in performance, well before there is a breakdown.
  • Plant emergency call-outs to see what is happening on site are virtually eliminated with the ability to view the information remotely
  • The contractor experiences less time wastage and this leads to increased earnings and profitability per employee

The Hawk-Eye 800 should be installed by a trained and authorised contractor. These contractors are listed on the Wave Industries website

For more information on the Hawk-Eye 800 contact Wave Industries either through the website or by phone:

Contact Personnel:

Ian Schmahmann: Director: +61 403 090 435

PLC Programming with the Hawk-Eye 800

The Hawk-Eye 800 is a web-enabled paperless chart recorder and multi loop controller with a suite of new features designed to deliver critical plant information to the owner and associated maintenance crew in easy to read format. For a quick overview of the features and benefits of the Hawk-Eye 800 see the video here.

But did you know that the Hawk-Eye 800 also includes an easy to program PLC that can be used to turn motors on and off, open and close valves and generally control your plant?

That’s right, if you use a Hawk-Eye 800 to do your measurement monitoring and control, you can probably do away with additional PLC’s to do the sequencing and control.

The logic system developed for the Hawk-Eye is so simple to use that even people with no PLC training at all can master it with less than an hour’s training.

Real world Digital inputs and outputs and soft digital inputs and outputs (flags) follow a very simple numbering system.

PLC Programming in the Hawk-Eye 800

Entering the Logic Sequence is Easy

Here is a list of the logic blocks and functions built into the Hawk-Eye 800. Using these functions you can create a ladder logic diagram. Just call up the functions one row at a time in a sequence and enter the inputs and time delays. The output numbers are already defined for you,  making it even easier to configure

  • Pulse Width Timers. These set the on/off time of the output in proportion to any analogue signal. The time base can be set from 1 second upwards.
  • Monostable timers. One input is used to trigger and the other to reset. The timer output remains true for the time out period which can be 1 second upwards.
  • Delay On Timers. The output becomes true provided the input remains true for the timeout period. After that the output will remain true while the input is true and will reset when the input resets.
  • Delay Off Timers. The output turns off provided the input remains off for the timeout period. After that, the output will remain off until the input turns on
  • Inverters. The output always is the opposite state to the input
  • Input logic Gates (AND, NAND, OR, NOR, XOR, XNOR) each with 4 inputs. These gates follow the Boolean logic of the standard functions. Any input can be forced off or on
  • Run timers. This timer measures the time an input has remained on and once that time equals the run time, the output turns on
  • Event counters. The number of events are counted and when they equal the preset count, the output turns on.
  • Flag to Flag links. Used to link flags together for example to link the output of a timer to an email triggering flag.
  • Flag to Relay links. These are used to turn on relays when a particular flag is on.
  • Email triggering flags. The email triggering flags allow you to send an email to any number of recipients when a digital event occurs such as the activation of an emergency switch.
  • Touchscreen push-buttons.  The touch screen push-buttons sit behind the dashboard flags so you can manually signal an event to the logic such as starting a process.
  • User labelled Dashboard Flags. The user labelled flags provide a visual indication on the dashboard that some digital conditions are true.


Once you have entered the sequence, save it and you are ready to control your plant.



Automated Email Notification of Alarms

Automated Email Notification of Alarms

The Hawk-Eye 800 is a web-enabled paperless chart recorder and multi loop controller with a suite of new features designed to deliver critical plant information to the owner and associated maintenance crew in easy to read format. For a quick overview of the features and benefits of the Hawk-Eye 800 see the video here.

With its 8 analogue inputs, 4 derived inputs, 4 digital inputs, 2 analogue outputs and 8 relay outputs, the Hawk-Eye 800 has enough I/O to cope with most small to medium processes in a single unit.

The 8 analogue inputs and 4 derived inputs each have 2 fully configurable alarms which can be individually set to trigger on increasing measurements (high alarm) or decreasing signals (low alarm).

When an alarm is triggered or reset, an email message corresponding to that event can be automatically sent to any number of recipients.

smartphone receiving message from Hawk-Eye 800 paperless chart recorder with automated email messaging of alarms

There are 24 alarm points (8 inputs and 4 derived inputs each with two alarms) so in total there are 48 different messages to be sent corresponding to the set and reset events of the 24 alarm points.

That’s a lot of typing to create meaningful messages that include the relevant alarm parameters so a recipient would know some details about the alarm event. What sort of details? Well let’s list them:

  • The name of the input
  • The number of the alarm
  • The type of alarm (auto or manual acknowledge)
  • The alarm mode (High or Low)
  • The alarm set point
  • The time the alarm must be continuously present before it will trigger (time delay)
  • The alarm dead-band
  • The alarm reset point
  • The engineering units.

If some of these parameters are included in the message, then it is far easier to construct all the messages using a message template that picks up the parameter values and includes them in the message with other text:

An example of a trip message: “ABC Food company Meat Freezer1  Alarm 1 High Alarm has tripped at -10.0  oC after 10 minutes

An example of a reset message “ABC Food company Meat Freezer1  Alarm 1 High Alarm has reset at -12.0  oC”


Mail template construction is easy using your finger to point to the parameters to be added into the message. Simply save the template under a new file name and then add it to any alarms to include the messaging function.

So with the Hawk-Eye 800 you just need to create a message template by clicking the parameters you want to include in the message and adding any extra text you like. Then when you set up the alarm messaging, you just select which template to use to send the message and literally no more typing is needed. The added bonus is that if a parameter changes, the change is reflected in all future messages sent.

For more details on the Hawk-Eye 800 and its intelligent automated alarm messaging system call us on +61 2 9153 5088 or email us at


Intelligent Messaging – A New Feature of the Hawk-Eye 800

The Hawk Eye 800 is due to be released early in 2016.  Here is a link to the video introducing this ground-breaking new product.

Our meaningful alarm and email messages have now been taken one stage further with the introduction of Intelligent Messages in the Hawk-Eye 800. These messages are constructed using an unrestricted number of templates and include the names of the relevant variables in the message. You can mix plain text with variable names. Just click on the required variables in sequence and add in plain text as required. Some examples of Alarm Variable names:

  • Channel name
  • Alarm type
  • Alarm mode
  • Set point
  • Dead band
  • Time delay etc.

Once the template is to your liking, just save it with a new name and you are ready to deploy it in the alarm message boxes. Normally you would set up at least two templates, one for alarm trips and one for alarm resets. No need to type 48 different alarm messages and if any variable is changes, the next message that uses that variable will reflect that change


Read more about the automated sending of alarm messages by email

Food Safety Temperature Control And HACCP Records

Food Safety Temperature Control And HACCP Records

Food SafetyFood Safety Temperature ControlAn organization that handles, prepares or serves food must have a HACCP plan in place and is subject to regular inspections from the local Food Authority.

Temperature is one of the most important parameters to control. Bacteria grow rapidly when food is in the “Danger Zone” as shown on the Temperature Zone chart.

Food Temperature Checks

Currently food temperature checks have to be carried out at least twice daily.

Food safety recordsThis method is, however, fraught with dangers as explained below:

Paper records of temperature take time to record and keep correct. They are subject to human error and the temptation to modify them to suit or to cover mistakes that may have been made.

Auditors have even discovered food outlets where the temperature charts have been filled in for days ahead.

Sooner or later, recording errors and/or the negligent behavior of staff will create a potential or actual food poisoning issue. In these days of rapid communication over the social media, such a public incident can result in loss of reputation and irreparable harm to the business.

Wave Industries provides food temperature monitoring and recording equipment that can:

  • Warn those who need to know of food temperature issues before the damage occurs
  • Demonstrate to your local Food Authority and your customers alike of your due diligence and concern to maintain the highest standards

Read More…

Mitigating the Risk of Serving Unsafe Food

The fact that the NSW Food Authority has established a “Name and Shame Register” clearly shows how serious our State Governments are in ensuring food is prepared and served safely in Australia.
Click the link to see Food Authority Name and Shame Register

Any organisation that works under HACCP, needs diligently maintained and accurate temperature measurement and corrective action records.  Delivery, storage, cooking serving and sanitising temperatures and the corrective actions taken are absolutely critical to:
Ensure potentially hazardous foods are safe to eat especially for those organisations that have children, the frail and elderly under their care.chicken_pieces
Demonstrating their due diligence and compliance to HACCP

The Risks of Manual Records
HACCP compliance requires as a minimum that you measure and record all your critical temperatures at least twice per day. So someone in the organisation has to go round to all the temperature displays twice per day and write down the readings and the time they were noted. Those temperature records then need to be transcribed to a file so that in the event of a later problem, the records can be extracted. The hand written records can easily become contaminated and potentially meaningless if someone forgets to note the readings at the correct time and then just writes down any figures later to avoid the repercussions of missing records. In some cases, auditors have even discovered records that have been prepared ahead of time to save the labour of having to go round and note them at the appointed time. Read More…

Conventional Data Loggers vs The Hawk-eye 800

Conventional Data Loggers vs The Hawk-eye 800

Standard data loggers allow you to record process variables, date-time stamp the records and then store that information for later retrieval. The values being stored at the time could indicate a HACCP food safety or other problem such as a temperature that is out of specification, but the simple data logger is unable to warn you of that impending problem and the potentially disastrous consequences.

In fact, if you think about it, a simple data logger can provide you with a false sense of security. Because you only know the full history of the process being monitored, there could be a serious safety problem that you might not know about until months later when the data is retrieved and analysed.

Read More…