ABB AK101 User Manual

ABB AK101 User Manual Manual pdf 44 page image

42ELECTRICAL CALCalibrate Noxxx.xmV Zero (0.00mV)xxx.xmV SpanAdjust RTX ZeroAdjust RTX SpanYes NoYes10.3.4 Electrical Calibration Page (LOWER DISPLAY) – AK101 onlyNotes.1) The 4689 instruments incorporate a two-point calibration sequence requiring bothzero and span inputs for a calibration. It is not possible to adjust the range zero or therange span scale points independently.2) The instrument is fully calibrated before despatch and should not normally requirefurther calibration.Select CalibrationSelect the calibration requirement using the or keys.Calibrate No (default) skips to Adjust RTX Zero frame.Calibrate Yes enables zero and span electrical calibrations to be carried out.Advance to next parameterCalibration Range Zero (0% Air in CO2 )Proceed as described in Section 8.3 Calibration, but apply a signal input equivalent to%AIR IN CO2 range zero (0.00mV).Allow the instrument to stabilize..Advance to next parameterCalibration Range Span (100% Air in CO2 )Apply a signal input equivalent to: %AIR IN CO 2 range span (10.00mV)N 2 range span (1.00mV)Argon range span (10.00mV)Allow the instrument display to stabilize.Advance to next parameterAdjust Retransmission ZeroAdjust the retransmission zero (e.g. 4.00mA) to the appropriate zero value.The retransmission zero signal is either 85% or 80% H 2 in Air as selected in Set UpOutputs Page.Allow the output signal to stabilize.Advance to next parameterAdjust Retransmission SpanAdjust the retransmission span (e.g. 20.00mA) to the appropriate maximum value.The retransmission span signal corresponds to 100% H 2 in Air.Allow the output signal to stabilize.Return to Operating Page....10 PROGRAMMING