December 2015 Newsletter
Table of Contents
Merry Christmas and Happy Holidays
Another year is coming to a close. This makes 42 consecutive years we’ve proudly served the water treatment industry and the professionals that provide products and services within it. Our industry was at the forefront of water conservation and reuse, well before “green” became part of our modern lexicon. It is always a pleasure to work with the caliber of people we do in an industry as important as ours.
We want to thank all of the people that represent, own and work for the companies that we talk to and help throughout the year, customers and vendors alike. We look forward to working and partnering with all of you next year.
Have a safe and joyful Christmas. We wish you a Happy Holiday season.
From the crew here at Lakewood Instruments
BACnet with NexSys®
NexSys® BACnet integration just got easier. The NexSys® controller line is one of the few (if not the only) BACnet ready cooling tower and boiler blowdown/ chemical feed controllers right out of the box. It’s not an option, it’s standard.
How do we add more excitement to the mix? Up until now, the BACnet settings were preset at the factory. Any sort of adaptation to local requirements required a special project load (No big deal) OR each unit came with standard settings that required the integrator to match the factory setup out in the field when it came to setting up the objects and data points.
Using the latest firmware and project update (all units shipping after Jan 1st, 2016), or with an easy update in the field, each NexSys® can be programmed to match the object destination ID and points address the site needs for EACH individual data point, using a simple menu on the color touchscreen.
Believe us, the site integration folks are going to love these new features. This will also allow the user to verify settings when troubleshooting. You can see more at http://lakewoodinstruments.com/nexsys/
Reset Sensor Nodes Feature
Calibration can be tricky. Wrong solutions or wrong values entered and you can chase the calibration for a while. So what do you do when the third shift guy really messes up the calibration curve? As of Jan 1st, all you do is hit the “Service button” (reset) on the individual NexSys® nodes for 15 seconds and they return to factory default settings, making calibration and configuration back to “out of the box” settings, WITHOUT de-installing. This will save time when troubleshooting or straightening out an overzealous button pusher.
Nodes sold prior to Jan 1, 2016 can be returned for free upgrade (no charge) when you cover shipping.
Boiler NexSys® “an ACCURATE” sample reading.
Most facilities have the local crews take “shift readings” of the boiler systems conductivity. This is relatively easy on a “continuous blowdown” system, since the flow is being actively measured at all times. To get an accurate conductivity measurement, when using Sample Cycle and Sample Hold controlled systems, requires some extra effort.
In the past, with our older units, the operator would walk up, activate the relay manually, flipping the blowdown valve actuator into the “on/open” position. They would then write down the reading whenever they felt like it. This leads to LOTS of inaccurate data recordings, since the operator didn’t allow the sensor to warm up to operational temp AND it didn’t properly simulate running conditions. What if the boiler was “Steam flashing”, due to water level issues, within the normal sample time, causing the boiler to always run high conductivity since the valve was shutting early on the false low reading (Steam reads as near zero)? A few seconds of sample water running across a cold sensor tip doesn’t allow the operator to see that issue or consistently record an accurate conductivity.
We have taken the calls for years, walking people through the proper method. With the NexSys® system, we solved the issue. Instead of just tapping the 5.7” touchscreen and manually opening the valve, the operator goes into a calibration cycle to see the readings. This makes sense, because if the reading is off, they are going to calibrate it based on the handheld measurement they just took for comparison. Two birds, one tap.
A major part of our new calibration process is that it now runs an actual operational sample process before allowing the operator to enter calibration information. Why is this good? It lets the operator calibrate the unit at the optimum sampling time/temp and when it is getting a reading it will actually be controlling on in full operation.
The other benefit is that the same process (time and procedure) is used every time to “check the readings” during the shift, lending itself to a consistent methodology and accuracy to the readings being taken. Some have complained that “waiting the extra 45 seconds” or “tapping the extra button on the touchscreen” makes the process too tedious. By adding two taps and adding 45 seconds to the process, we have improved calibration and operational consistency, making for more reliable boiler control and service.
AWT Membership Committee
We take our participation within the Association of Water Technologies (AWT) very seriously. From the Technical Training to the Analyst and Trade Show, we feel the organization is of great benefit to its members and our company, as well as the industries it supports. We’re now able to participate within the organization a little more. Tom Tinney has been asked, and happily accepted, to the chair the AWT Membership Committee. He Looks forward to working with the organization and members to grow the association, continuing the good work of the committee and the previous chairman, Mark Vermeulen. We look forward to seeing you at one of the future events. AWT EVENTS LINK