Teledyne API T802 Paramagnetic O2 Analyzer Operation Manual
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5.9.2. ANALOG OUTPUT

The T802 analyzer comes equipped with four analog outputs.

The first two outputs (A1 & A2) carry analog signals that represent the
currently measured concentrating of O2 (see Section 5.4.2).
The third output (A3) is only active if the analyzer is equipped with the
optional CO2.
The fourth output (A4) outputs a signal that can be set to represent the
current value of one of several test functions (see Table 5-8).
5.9.3. ANALOG I/O CONFIGURATION

The following lists the analog I/O functions that are available in the T802

analyzer.

Table 5-4: DIAG - Analog I/O Functions
SUB MENU FUNCTION
AOUT
CALIBRATED
Initiates a calibration of the A1, A2, A3 and A4 analog output channels that determines
the slope and offset inherent in the circuitry of each output.
These values are stored in the memory and applied to the output signals by the CPU
automatically.
CONC_OUT_1
Sets the basic electronic configuration of the A1 output (O2 Concentration).
There are four options:
RANGE1: Selects the signal type (voltage or current loop) and level of the output
REC OFS: Allows them input of a DC offset to let the user manually adjust the
output level
AUTO CAL: Enables / Disables the AOUT CALI BRATION Feature
CALIBRATED: Performs the same calibration as AOUT CALIBRATED, but on this
one channel only.
CONC_OUT_2 Same as for CONC_OUT_1 but for analog channel A2 but only if Auto or Dual
range is selected (Oxygen high range, RNG2)
CONC_OUT_3 Same as for CONC_OUT_1 but for analog channel A3 but only if the optional CO2
sensor is installed.
TEST OUTPUT Same as for CONC_OUT_1 but for analog channel A4 (TEST CHANNEL)
AIN
CALIBRATED Initiates a calibration of the A-to-D Converter circuit located on the Motherboard.
XIN1
.
.
.
XIN8
For each of 8 external analog inputs channels, shows the gain, offset,
engineering units, and whether the channel is to show up as a Test function.
1 Any changes made to RANGE or REC_OFS require recalibration of this output.
07275B DCN6418