Archive for category configuration

Marking Charts on Honeywell Paperless Process Recorders

Back in the day of paper charts, it was simple to mark a recorder chart – the operator pulled a pen out of his pocket and wrote on the chart, or the quality person rubber-stamped the chart.

Even with “paperless” charts on Honeywell’s Trendview, X-Series and G-Series digital recorders, it’s still easy to annotate.

Read the rest of this entry »

, , , , , , , , , , , ,

Leave a comment

Using through-air radar on low dielectric materials in petroleum industry applications

Recently, a refinery customer came to use with a level application. Our team determined that it would be a perfect fit for radar level gauges, IF they turned on a Siemens radar algorithm called CLEF, that would let the radar measure accurately all the way to the bottom of the tank.

What is CLEF? How does it work? And why does it matter?

Read the rest of this entry »

, , , , , ,

Leave a comment

Honeywell smart transmitter design makes communication card swap easy

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 »

, , , , , , , , ,

Leave a comment

Wet rhymes with Set (or how to remember LRV/URV configuration prompts)

Lots of people like the pushbuttons on industrial pressure transmitters because the basic settings that every transmitter needs can be set up without a HART communicator. This includes things like the tag name, engineering units, LRV (Lower Range Value, the zero, or what 4.0mA represents), URV (Upper Range Value, the span, or what 20.0mA represents) and damping (an average or filter factor that dampens noise).

Honeywell ST700 ST800 configuration screenOn the new Honeywell ST700/ST800 series smart transmitters, the tag name and engineering units are easy to configure and self explanatory, but I seem to stumble when setting up the LRV and URV because I’m faced with a non-descript choice. There’s two sets of options (under Transmitter Setup, not Calibration):

Enter LRV
Enter URV
Set LRV
Set URV

OK, either configures an LRV or a URV value, but which is which?  What’s the difference?

Read the rest of this entry »

, , , , , , ,

Leave a comment

Follow

Get every new post delivered to your Inbox.

Join 181 other followers

%d bloggers like this: