Product Spotlight

Two-Wire Transmitter -

Potentiometer Input

Our "sleeper" product - not new and, you would think, not particularly exciting, but people keep finding it and buying it, so we thought we'd feature it.

Pretty simple - takes a potentiometer input and converts it to a 4-20mA two-wire (loop-powered) output. Quite honestly, it was an afterthought when we designed our temperature (RTD and thermocouple) two wire transmitters years ago. Laying out the circuit board so it could also be assembled for potentiometer input was easy, so we included it.

Sells better than we ever expected. Just this month we picked up two new customers for it. The applications can be anything that needs to convert position to an electrical signal. A couple applications - level measurement and boat throttle position. The level measurement application uses a probe with series of resistors and reed switches, activated by a magnetic float.

Links: Model JH250 Potentiometer Transmitter
Other Two-Wire Transmitters
Our web site - http://www.jhtechnology.com/

Can You Help????

Here's a question we can't help with. Can you?

The other day a fellow called to ask if we could build a custom dashboard panel for his car. We've had two similar calls recently - at least one of them was from a man who was converting an older model to electric power. (He wanted it to look as much like the original dashboard as posssible.) All of them had seen from our web site that we can design panels and minisystems.

This is outside our area of expertise. Industrial control panels, yes. Automotive, no. We'd need to know the size, shape, mounting arrangements etc of the car's dashboard and the electronic details of the car's sensors.

I thought I'd post this for our readers. Can you help, or do you know anyone who can?

Product Spotlight

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Field Mount Enclosures

In our last posting (December 26,2009) we highlighted our FDT5000 Series field mount transmitters with displays. If you don't need a display you can mount any of our plug-in transmitters and alarms in the two enclosures featured here.

NEMA-4X Rated Enclosure

Splashproof & corrosion resistant, it includes the mating socket. It is normally sold without an opening or conduit connection as the installer usually prefers to determine this detail. If you would like us to provide this please e-mail jhtek@jhtechnology.com or call 941-927-0300 (in the US, toll-free 800-808-0300) us with your requirements.

Part #ENCL-1-8 with 8-pin socket, or ENCL-1-11 with 11-pin socket.

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Explosion Proof Enclosure

This is a Hubbell-Killark enclosure, modified by adding an 8- or 11-pin socket. UL, CSA and Factory Mutual approvals include Class 1, Div 1 & 2, Groups A, B, C & D when properly installed. A neoprene o-ring assures water-resistance per NEMA 4/IP66. Two 3/4 inch-14 NPT threaded conduit openings are provided.

Part #ENCL-EX1-8 with 8-pin socket, or ENCL-EX1-11 with 11-pin socket.