MODEL AT3
3 – 2
"CALIBRATION" Used to correlate raw data coming from the sensor to a corresponding concentration.
Up to 16 different samples can be read by the instrument. From this information the
instrument can construct a lookup table or perform a polynomial fit of degrees 1 to 4.
The user can graphically plot the resulting curvefit to visually check how it corresponds
to the samples. Samples can be edited or deactivated and curvefitting can be tried
again quickly to improve the calibration. This menu is password protected.
"MEASUREMENT Used to set up the parameters which affect the measurement. This includes the
SETUP”
output power, detection threshold, window position and waveform adjust. This menu is
pass word protected.
"ANALOG
Adjusts parameters involving the instrument's control current output. These include the
OUTPUT”
"ZERO", "SPAN", and "RANGE"
"SETPOINTS" Consists of all the parameters that can be set up to activate the four relays at certain
conditions. Each setpoint value can have a Hysteresis, a time delay (the condition must
be met for at least this time before the relay trips), and a mode ("HIGH" means make-
on-rise, "LOW break-on-rise).
Summary of Contents for Monitek AT3
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