Huba Control Installation
Huba Control Pressure Transmitter, Flow Sensor
Relative and Absolute pressure transmitters for air and gases, liquids and refrigerants. Read more: http://bit.ly/2dgWFJ1
Liquid media flow sensors, Vortex trail technique, for 0,5 l/min to 240 l/min in reinforced PVC or in brass. Read more : http://bit.ly/2cQxO0I
For more data acquisition information, visit http://bit.ly/a2DvOw Watch this step-by-step demonstration to see how you can measure a pressure transducer using NI LabVIEW software and a USB data acquisition (DAQ) device.
(http://www.sorinc.com/products/product-category/pressure-switch/) Description of the basic operating priciple for a mechanical pressure switch and why SOR makes the best.
I am NOT a plumber or certified Tech! Working on a boiler can kill you and be destructive to your property! I am not responsible for anything that you do on your own boiler. Be safe people! This is my NTI Triinity Ti100 boiler that I installed in 2009. The other day, I had a cold shower. I HATE cold showers. So much so that I have one of the largest residential solar hot water setups in all of CT. Somehow, it was cloudy for a couple days AND the boiler had stopped igniting. It was on, but not igniting. Not good. AND it was leaking! So, the leak I kinda knew about (now it was worse) and I more or less describe in the video. The ignition issue is the main problem and reason for teardown. Boiler no heat. The boiler was trying to start, it was on, but giving error 6 ... the ignitor was glowing, but no flame inside the window, as if it didn't have gas to ignite. So, either the gas valve isn't opening, or there is no gas in the lines at all. Stove works. Therefore, gas valve isn't opening. Checked the voltage going TO the gas valve in the boiler (not in video, sorry). Gas valve has voltage. So either bad gas valve, OR one of the safeties is not letting the valve open. 3 Safety sensors. Stack sensor (UPDATE TO VIDEO: sensor is 190F overtemp sensor on stack, over 190 sensor opens the circuit so as to not melt the PVC pipe), low water presure sensor, manifold limit switch ( UPDATE to video: doesn't say in manual if this is temp or pressure). The way to check and see if the safeties are not letting the gas valve open is to jumper the safeties, and troubleshoot accordingly (described in video) This method is specifically mentioned in the book as something that you SHOULD NOT DO. Here are the reasons for determining that it as ok to TEMPORARILY do that. I have a temp and pressure gauge right outside the boiler, and a standalone low water cutoff. Though the pressure was a bit low (maybe the leak?) after adding water pressure (to 15psi) there was no change in symptoms. The objective of the low water pressure sensor is just trying to make sure I wasn't running the boiler dry. Boiler wasn't dry, so I wasn't worried about that. Stack sensor I wasn't worried about because the boiler hadn't been igniting anyway, and the manifold limit sensor (pressure or temp) I wasn't worried about either because my gauge said the temp and pressures were well within normal limits. Therefore, I determined that it was safe to temporarily electrically remove the safeties from the system. After I did so, the system fired as normal. After jumpering in and out the safeties I determined that either the pressure WAS low in the system, or the low water pressure sensor was bad. After adding some pressure to the system (sensor opens the circuit below 10psi) to above 15 psi, no change. Therefore, bad sensor (pressure switch). Thanks to Boston Heating Supply I have a new one! www.bostonheatingsupply.com NOTE: if what I have posted as helped you out enough to justify paying me back in some way, this is the best way I can think of... my amazon wish list! this products here will help support future vids! thanks in advance! http://www.amazon.com/gp/registry/wishlist/24MQI7HCK8C0B/ref=cm_sw_em_r_wsl_sKWiub1ENDS2M_wb
By viewing this video you can get an idea how the differential pressure transmitter works and how to measure the flow in a pipeline. this is the function of secondary elements of flowmeter Differential pressure flow meters have a primary and a secondary element. Generally speaking , the primary element is designed to produce a difference in pressure as the flow increases. There are many different types of primary element, the most common being the orifice plate, venturi, flow nozzle and pitot tube. The secondary element of the flow meter is the differential pressure transmitter. It is designed to measure the differential pressure produced by the primary element as accurately as possible. In particular it is important that the differential pressure measurement is not affected by changes in the fluid pressure, temperature or other properties such as ambient temperature. A good dp transmitter will ensure that the differential pressure is measured accurately independent of other changing parameters and will reliably transmit a signal to represent the differential pressure. In the case of a dp flow transmitter the output signal may also include square root extraction. Although it is common these days for this function to be carried our in a flow computer of Dcs system. The output signal from and industrial DP transmitter is likely to be 4 to 20milliAmpheres, but it may also include digital communications such as HART, Profibusm Fieldbus, Modbus 485 RTU or one of many other communication protocols. The majority of industrial DP Transmitters are fitted with diaphragm as the pressure sensing element. This diaphragm is a mechanical device. It is placed in between the two pressure inlet ports. The diaphragm will be deflected by the applied pressure. This deflection is converted into an electrical signal.