4.12
The DV lag may be set between 0.5 and 8 minutes in steps of 0.5 minutes. After the
DV lag each calibration gas will flow for a further minute. This is to allow the new
level to be recorded on a chart recorder.
The autocalibration sequence will calibrate all transducers fitted. It is important to
note that different gas bottles may be used for low and high calibration of each
transducer. All calibration concentration values are set and displayed in the primary
unit for the transducer regardless of the units used for the display.