model 2704 controller installation and operation handbook - Soliton

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Transducer Scaling 2704 Controller 19.3. LOAD CELL CALIBRATION A load cell with V, mV or mA output may be connected to the PV Input, Analogue Input or Modules 1, 3, 4, 5, 6 supplied as analogue inputs. The wiring connections are shown in Sections 2.3.3, 2.3.4, and 2.4.2 respectively. The load cell is calibrated as follows: 1. Remove any load and start the procedure using the low point calibration parameter ‘Start Pnt1 Cal’, or a digital input wired to this parameter. The controller will calculate the low calibration point 2. Place a reference weight on the load cell and turn on the high point calibration parameter ‘Start Pnt2 Cal’, or a digital input wired to this parameter. The controller will then calculate the high calibration point. Note:- If ‘Start Pnt1 Cal’ = ‘On’, ‘Start Pnt2 Cal’ cannot be turned to ‘On’. If ‘Start Pnt2 Cal’ = ‘On’, ‘Start Pnt1 Cal’ cannot be turned to ‘On’. Either must complete before the other can be set to ‘On’. Reference Weight Controller under Calibration Load Cell Figure 19-2: Load Cell Calibration 19-6 Installation and Operation Handbook. Part No HA026502 Issue 1.0 Apr -00
2704 Controller Transducer Scaling 19.3.1. To Calibrate a Load Cell Do This This Is The Display You Should See Additional Notes Enable calibration as described in steps 1-7 of section 19.2.1. Then set the load cell to its ‘zeroed’ condition 1. Press as many times as necessary to scroll to ‘Start Pnt1 Cal’ 2. Press or to ‘On’ This parameter can be configured so that it is activated from a digital input and wired, for example, to an external switch. If this has been configured this parameter can be turned on from this source. During the time taken for the controller to calculate the low point calibration value, the Cal Active parameter will be On. When the Calibration low procedure is complete, place the reference load on the load cell 3. Press to scroll to Start Pnt2 Cal 4. Press or to On It can be configured to be initiated from a digital input and wired, for example, to an external switch. If this has been configured this parameter can be turned on from this source. The controller must have been configured for Cal Type = Load Cell, and the transducer connected as shown in Chapter 2. Then:- Note:- ‘Scale High’ is the high calibration point and ‘Scale Low’ is the low calibration point. These should be set to the range over which calibration is required. ‘Threshold Value’ applies as in the previous section. Installation and Operation Handbook. Part No HA026502 Issue 1.0 Apr-00 19-7
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2704 Controller Contents MODEL 2704
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model 2704 controller installation and operation handbook - Soliton

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