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What is the value of the flow measurement at that point? Apparently, not enough to exceed the cost of the energy loss.

Change to a higher range on both the transmitter and the DCS.

>replacement flame scanners >Aftermarket is acceptable. Due to the safety nature of flame scanners, good practice is same brand replacement. Flame scanners are expected to connect to a flame safety controller of the same brand that is designed for the exact characteristics of the scanner...

If Not SIS, you can find the boolean logic for 2oo3 voting logic in a Google (images) search. There's not likely a commercial product because such basic logic that can be implemented in any low end PLC.

If you change the range of a 4-20mA transmitter, then the input range of the receiver, the PLC, DCS, indicator, controller, recorder analog input, must be modified to reflect the change, unless the TT is Foundation Fieldbus. Not changing the receiver range will give a 20% error at the high end...

By definition, the MODBUS specification declares that a holding register or input register is 16 bits. MODBUS does not define the format of the data in a register, it defines only the register size, 16 bits. A 32 bit floating point value requires two 16 bit registers. A 17 bit data word...

Solution on Siemens forum: https://support.industry.siemens.com/tf/ww/en/posts/intellisys-modbus-com-port-to-db9-cm-1241/162711/?page=0&pageSize=10

> switching the leads. Good idea. >where there is a loose connection, and it's acting like a >cell, usually some form of corrosion taking place. something to keep in mind. Thanks.

To get a resistance reading, the battery in a meter sources the voltage that drives a known current through the 'unknown' resistance, creating a voltage drop that the meter reads and interprets as a displayed resistance value. So the RTD measures 108 ohms at ambient (about 20 DegC) when the...

Modscan32 is a generic Modbus master. The S6899 is a serial server that converts from one hardware bus to another hardware bus. It is not a Modbus slave, it has no Modbus registers. The S6899 might be used to convert a Modbus/TCP ethernet poll message from Modscan32 (running on your...

There are too many vendors out there to make blanket statements, given that in my experience, some pressure transmitters were not factory calibrated (characterized) for negative ranges), unless that option was purchased when the transmitter was manufactured. I do believe that all DP...

Why do you think that supply pressure at the positioner output is a problem? The output pressure is determined by the internal positioner controller according to its setpoint (process control signal to the positioner) and its process variable (the present position of the valve stem). If...

top mount non-contact radar works well. Siemens has a lot experience. https://w3.siemens.com/mcms/sensor-systems/CaseStudies/StMarys_LR560.pdf

>one MOV Master Station with 48 Rotork Valves Is this a Pakscan system?

A couple weeks ago my escort electrician in the steel mill had to put on all his arc flash protection garb to open the panel door to a 24x20" panel with a single 115Vac line powered strip chart recorder so that I could count the I/O and get a model number from it. I don't know whether...

I've always considered the use of buoyancy displacers suitable for clean fluids only because any build-up of material on the displacer changes its weight and therefore the 'calibration' of the unit. If a material is viscous enough to adhere to, build-up, coat or encrust the displacer, then...

The IR LEL detector that I recently pulled data from had a specific statement in the manual that the sensor had to be mounted in a vertical position (vertical cylinder). Its threaded connection on the top connects to a threaded port on the bottom of the electronic transmitter housing...

> Please clarify. I don't know any more about the cable than what the manufacturer tells me in the spec/data sheet. My experience says that if the manufacturer's spec/data sheet does not say it, it's not part of the product. The caveat is that some particular feature might be secretly...

> Coriolis I believe the implication is that a chocolate syrup might not have sufficient conductivity to provide a reliable magmeter measurement, with the suggestion of Coriolis as an alternative measurement technology. I would suggest measuring a sample of the liquid for its conductivity...

Not exactly my field, but a google search for stock tank water level control brings up a number of commercial units like a Trough-o-matic float operated controller in plastic or steel for prices like $15USD. Installation instructions here...