Measuring Gas Velocity with the D-FL 100 Differential Pressure Bar

D−FL 100 Seite 205. Start-Up / Error Messages5.1. Start-up of the TransducerThe differential pressure bar is equipped standard with a differential pressure transducer 2010TD madeby ABB without a display.The transducer will be shipped adjusted (* by Durag. After mounting the transmitter it is only necessaryto do a zero point adjustment.1) turn the switching valve to the position zero point adjustment2) open exhaust screws and wait 30 sec.3) open the key-cover on the top of the transducer4) press down the lock-key „ / M“ with a screwdriver and turn it 90°5) press the „0% / -“ key once6) turn back the lock-key to lock the transducerNow the transducer is adjusted ans should be readout 4mA.If you want to change the measuring range there are three possibilities:• 1) open the key-cover on the top of the transducer2) press down the lock-key „ / M“ with a screwdriver and turn it 90°3) connect a definied pressure for the beginning of the measuring range (normaly 0 mbar) andwait 30s for stabilisation4) press the „0% / -“ Key once5) connect pressure for the end of the measuring range and wait 30s for stabilisation6) press the „100% / +“ Key once7) turn back the lock-key to lock the transducer• It is possible to order a LC-display with two additional keys. With this display you can change veryparameter of the transducer.• The transducers have a HART-interface for programming the parametersNote: you have to change the parameter of your evaluation unit (D-FL100-10) also.(* measuring range see chapter 9.1; damping 5s; transfer function: rootGmbH