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Manual calibration in multigas measurement mode, Model 6200e – Teledyne 6200E - Sulfides Analyzer User Manual

Page 172

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Calibration Procedures

Model 6200E Instruction Manual

172

M6200E Rev: A1

the contact is opened. At this point, the new calibration values will be recorded before the
instrument returns to SAMPLE mode.

If the AutoCal attribute CALIBRATE is disabled, the instrument will return to SAMPLE mode,
leaving the instrument’s internal calibration variables unchanged.

7.8. Manual Calibration in Multigas Measurement Mode

If the analyzer is being operated in multigas measurement mode, the methods and setups for
performing calibrations are identical to those defined in Sections 7.2 and 7.4 with the two

exceptions

• Some provision must be made for supplying both types of calibrated span gas to the

analyzer. A typical setup for this might be:

No Valve Options Installed

MODEL

6200E

Sample

Zero Air

Exhaust

Span

MODEL 701

Zero Air

Generator

VENT

Calibrated H

2

S GAS

(At high concentration)

Source of

SAMPLE Gas

Removed

during

Calibration

MODEL 700 Gas

Dilution

Calibrator

(with Ozone Bench

Option)

Calibrated SO

2

GAS

(At high concentration)

Figure 7-4: Typical Setup for Manual Calibration of M6200E in Multigas Measurement

Mode

• The analyzer will ask to have the GAS TYPE specified at the beginning of the process as

follows:

Continue Calibration as per

Standard Procedure

SAMPLE H2S STB =XXX.X PPB

H2S

=XXX.X

< TST TST >

CAL

CALZ

CALS

SETUP

ZERO CAL M

H2S STB =XXX.X PPB

H2S

=XXX.X

< TST TST >

ZERO

SPAN

CONC

EXIT

SAMPLE

GAS TO CAL: H2S

SO2 H2S

ENTR SETUP

SAMPLE

GAS TO CAL: SO2

LOW HIGH

ENTR

SETUP

Wait until H2S

STB falls below

0.5 ppb. This may

take several

minutes.

Once this selection is made, the calibration procedure continues as previously described. The other
gas may be calibrated by starting over from the main SAMPLE display.