Archive for category Service
Last week, I was doing a firmware update on the Honeywell SLG700 guided wave radar using Honeywell’s Smart Anytime Tool (SAT).
Honeywell’s SAT firmware update tool needs to be “pointed” to the component type (sensor/display/communications module), and then the specific file needed for update. A recent release (R102.1) for the SLG700 listed two different files for the Advanced Display, but it wasn’t clear which file I needed to use. Read the rest of this entry »
Chemical seals and fills are often necessary to protect your process instrumentation from harm. But the wait for a custom gauge-and-seal, switch-and-seal, or transmitter-and-seal combination could be an issue, keeping your process offline for longer than necessary, or costing a premium for quick delivery.
We’ve removed the potential for downtime and rush charges with our WIKA-certified assembly station, and improved stock of most popular transmitters, switches, gauges, diaphragm seals, and fill fluids. Lesman customers can experience next-day delivery on custom assemblies from in-stock instrumentation.
It was bound to happen sooner or later.
I took a call from a customer who needed to replace a garden variety differential pressure transmitter… with one exception: He needed Honeywell’s DE digital protocol for communicating to his DCS. The DE protocol is still great, but since so many installations today use HART or Foundation Fieldbus, all of our in-stock pressure transmitters had a HART communication card – a critical mismatch to what the customer needed.
A year ago, we would have been stuck rush-ordering a unit from the factory, with all the attendant delays and expediting charges, because you couldn’t swap out a comms card without making the transmitter’s hazardous approval invalid.
What could we do?
Read the rest of this entry »
The HART communication protocol has been firmly established as the standard means of configuring field instruments for some years. But talking to a field instrument needs a communicator.
There are the handheld communicators, Rosemount’s x75s and the “budget-priced” Meriam MFC 4150, but at a cost that’s more a capital appropriation than an MRO expense. Even the Meriam, with a 3-year field device description subscription starts at more than $4000.
People continue to ask me if there isn’t a more budget conscious approach to HART configuration.
One of the strengths of Honeywell’s X-series paperless recorders is password security. You can configure it to keep operators from making configuration changes, and it’s a necessary part of being able to view a recorder’s data using a web browser.
One of the weaknesses of Honeywell’s X-series paperless recorders is password security. And by that, I don’t mean it’s bad. I just mean it can cause problems if a user fails to enter their username and password right, and ends up locked out of the recorder.
So I’m guessing if you searched for the backdoor password, you’re in that situation. You’re locked out of your recorder and can’t figure out how to get back in.
First, I apologize for luring you into reading this. There is NO backdoor password for an X-series recorder. But don’t give up hope: There is an answer.
(What’s a back door? Watch and learn.)
Hopefully, there’s a user at your location with administrator level access, who can reset a locked-out user. But if that’s not the case, what do you do when everyone is locked out of an X-series recorder?
I was working with a customer to replace a Siemens clamp-on ultrasonic flowmeter after its electronics had been replaced. We followed all the connection and startup instructions, but the flow rate was stuck at 0.00 – no dithering, no hunting, not a single flicker in the low-order digits.
Ultrasonic clamp-on flowmeters can be very sensitive to low flows. But even at no flow with the pump turned off or the line isolated, the digits to the right of the decimal point would dither around zero, showing some very small positive values, some very small negative values. It’s the nature of the beast.
So why were we getting an absolute zero reading? What was going on?
We’ve gotten feedback from several people who have asked what I carry around to deal with serial or Ethernet communications issues. So I dumped out my comm tool bag and here’s the list of all the stuff.