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The idea is to measure the temperature of the screw terminal connections. Sometimes ambient temperature reflects that tempeature, other times it doesn't. The Schneider manual has a statement on conditional limits when its Telefast connectors are used (max air flow, proximity to heat sources)...

Perhaps a look at discussions of sealing NPT threaded connections will help you in your concern about the installation of gauges with respect to dial angle. The issue is getting a tight seal at the proper viewing angle, right? You might want to check out this current thread on NPT thread...

You are trying to use the wrong model transmitter. According the spec sheet, the Cerabar S PMC71 series is for "absolute pressure and gauge pressure" measurement. http://tinyurl.com/qch8wqo Your model transmitter is suitable for level measurement in tanks which are vented to atmosphere...

No one has any idea what temperature you're talking about because you used a pressure unit, MPa, not a temperature unit. Pressure transmitters are generally rated to about 125 Deg C body temperature at 85 Deg C ambient. High temperatures are usually dealt with by using a length of impulse...

Emerson published a note on the HART 7 revisions that includes the major features of HART 5 and 6. http://www3.emersonprocess.com/rosemount/hart7/resources/Overview%20of%20HART%20Revisions.pdf http://tinyurl.com/p43rvu9 According to that document, time stamps using the device's...

In my opinion, no, what you describe is not SCADA because the implication of the DATA ACQUISTION portion of the name, SCADA (Supervisory Control And Data Acquisition) is the historian part. But, marketing people will re-define a commonly accepted term without a second's hesitation. The...

The G in the part number STG indicates that it is a gauge pressure transmitter whose low side reference is atmospheric pressure, so changes in barometric pressure are automatically reflected in the gauge pressure measurement. When it's 'open to atmosphere' the measurement is: atmosphere...

The Zero Correct function zeroes out the minor pressure offset due to the diaphragm being out of plumb (vertical). Do the Zero Correct when the transmitter is installed in its service location. When using the ST700's (optional) display and pushbuttons, there's a setting [after Pressure...

How's 8 samples per second sound? Honeywell's 2 wire STT850 temperature transmitter has 125mS update rate. http://tinyurl.com/ndn8dge Connect the STT850's 4-20mA output to a Banner Engineering's DX80 node radio and configure the sample and report rates for 125mS...

I think your monitoring sensor is a Pt100, commonly known as an RTD, not a PD100. And your 'regulator' is a PID feedback controller with a 4-20mA control output. You might consider choosing a different regulator/controller that has a switching output, like an electromechanical or solid state...

What a tough one - totalizing intermittent, periodic, small volume 'slugs' of water. I was surprised when a clamp-on ultrasonic flow meter's recorded flow rate output (on a 2"/50mm line) clearly indicated intermittent, periodic blips when a night watch man flushed a toilet every 2-3 hours at...

Commissioning errors are not uncommon. You need to check to see whether the OP/xmtr is reading in the ball park, before you get all huffy about 'accuracy'. Clamp-on ultrasonic meters can be used as a check against the orifice plate/transmitter, if the line pressure is above the minimum...

Modbus slave units frequently have Modbus as an option or secondary output, with a primary output like a relay or an analog signal, depending on what the slave unit is. If there are no outputs other than Modbus and it's Modbus RTU over RS-485, then you cannot use another RTU master. But...

If you already have a pressure transmitter, then by far, the simplest method to get a signel into a PLC is a pair of radios that whose function is wired-in/wired-out. When you wire 4-20mA to an input on one end, you get 4-20mA output on the other end. In the USA, Banner Engineering and...

Because process piping is frequently oversized for the needed flow range, a correctly sized valve will frequently have a smaller valve body size than the line size. Since the purpose of a control valve is to use up or take out energy in the flow stream (create a pressure drop), using a...

Hasseli, I suspect that JDPS2 works for Siemens because he writes, "we'll get this resolved immediately". We = Siemens At one time or another, all of us have run into the unfortunate situation of the blame game - finger pointing at another party, but you now have the manufacturer's...

Thanks for the update.

I've never had to use a bubble pot but it appears to be a condensate pot with a valve for releasing/purging collected air/gas/vapor at an elevated high point. I'm not quite sure why any collected gas will not create head pressure errors at the DP transmitter, like when an automobile's hydraulic...

You are aware that there are commercial chips that do the heavy lifting of analog and FSK signal processing. It's the specfication documents that tell all about the protocol details. The current HART 7 specifications are for sale on the HART foundation web site. The HART protocol has...

I don't even have a copy of that software, but I suspect that the level of support is typical of freeware, i.e. emailing the listed contact under help > about with an explanation of the symptoms to see if an update might fix it.