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Analog i/o configuration – Teledyne 9110E - Nitrogen Oxides Analyzer User Manual

Page 78

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Operating Instructions

Model 9110E Instruction Manual

64

M9110E Rev B

6.7.3. Analog I/O Configuration

Table 0-7 lists the analog I/O functions that are available in the M9110E.

Table 0-7: DIAG - Analog I/O Functions

Sub Menu

Function

AOUTS

CALIBRATED:

Shows the status of the analog output calibration (YES/NO) and initiates a

calibration of all analog output channels.

CONC_OUT_1

Sets the output voltage of the A1 analog output (NO

X

) .

Range: Selects the signal type (voltage or current loop) and full scale value
of the output.
REC_OFS: Sets a voltage offset (not available when RANGE is set to

CURRent loop.
Auto_CAL: Performs the same calibration as AOUT CALIBRATED, but on

this one channel only.
NOTE: Changes to RANGE or REC_OFS require recalibration of this output.

CONC_OUT_2

Same as for CONC_OUT_1 but for analog channel 2 (NO)

CONC_OUT_3

Same as for CONC_OUT_1 but for analog channel 3 (NO

2

)

TEST OUTPUT

Same as for CONC_OUT_1 but for analog channel 4 (TEST)

AIN CALIBRATED

Shows the calibration status (YES/NO) and initiates a calibration of the
analog to digital converter circuit on the motherboard.

To configure the analyzer’s four analog outputs, set the electronic signal type of each
channel and calibrate the outputs. This consists of:

Selecting an output type (voltage or current, if an optional current output driver has been

installed) and the signal level that matches the input requirements of the recording device
attached to the channel.

Calibrating the output channel. This can be done automatically or manually for each
channel, see Sections 6.7.4 through 6.7.8.

Adding a bipolar recorder offset to the signal, if required (Section 6.7.5).

In its standard configuration, the analyzer’s outputs can be set for the following DC

voltages. Each range is usable from -5% to + 5% of the nominal range.

Table 0-8: Analog Output Voltage Ranges

Range Minimum

Output

Maximum

Output

0-0.1 V

-5 mV

+105 mV

0-1 V

-0.05 V

+1.05 V

0-5 V

-0.25 V

+5.25 V

0-10 V

-0.5 V

+10.5 V

The default offset for all ranges is 0 VDC.