BAL4010/4020_English v.2.8 - Hydrotechnik

3.3 Input of calibration value* * * * PROG P1* * * *calibr. value: 600.0(bar)ENT-> confirmIf you enter the figure "2", the menu for the input of calibrationvalues will be opened.The corresponding measuring range end value, in this case 600(pressure measuring range end value of the pressure sensor),needs to be entered. Confirmation of the input with key "ENT".You can see the end value of the pressure measuring rangefrom the label of the pressure sensor.Please take into account, that, when measuringnegative pressure with a pressure sensor from -1 to 6bar, not the calibration value, referring to the pressuremeasuring range end value is entered, but the span ofthe pressure measuring range from -1 to 6 = 7 bar.That means, the number 7 must be entered as acalibration value.3.4 Zero point alignment* * * PROG P1 * * *sensor must bedepressurizedENT-> confirm* * * PROG P1 * * *alignment 2 sec.* * * PROG P1 * * *zero point : 0.184(bar)ENT-> confirmFor measurements of negative pressure and for precisemeasurements of pressure differential the user needs toexecute a zero point alignment for the connected pressuresensor.For doing this, you have to enter the number "3" in the abovemenu.The hint, that the sensor must be pressure free, is shown. Dueto this it is sensible to take the sensor from the plant. Press key"ENT".The alignment of the zero point correction is carried out.The display, shown on the left, is active for approx. 2 seconds,after this the instrument will show another menu point.In this display you can see the zero point deviation of thepressure sensor. With its confirmation by a stroke of key "ENT",it will be taken into account as a correction value for all furtherpressure measurements by the internal software.With another stroke of key "ENT" you will come back into theusual measuring value display.The measuring inputs p2 and p3 are programmed in the sameway as described above.-9-