Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D

Step 2 - Calibrate the instrument:

Initial Zero/Span Calibration Procedure

Step Number

Action

Comment

1.

Input Zero gas

Allow Zero gas to enter the sample port on the rear of the

 

 

instrument.

2.

Press CAL

The M100AH enters the calibrate mode from sample mode.

 

 

 

3.

Wait 5 - 10 min

Wait for reading to stabilize at the zero value. (If you wait

 

 

less than 5 - 10 minutes the final zero value may drift.)

4.

Press ZERO

The ENTR button will be displayed.

 

 

 

5.

Press ENTR

Pressing ENTR actually changes the calculation equations

 

 

and zeroes the instrument.

6.

Press EXIT

M100AH returns to the CAL menu. Allow SPAN gas to enter

 

 

the sample port on the rear of the instrument.

7.

Wait 5 - 10 min

Wait for reading to stabilize at the span value. (If you wait

 

 

less than 5 -10 minutes the final span value may drift.)

 

 

 

8.

Press SPAN

If SPAN button is not displayed, check the Troubleshooting

 

 

Section 10.2.8 for instructions on how to proceed. In certain

 

 

circumstances at low span gas concentrations (<100PPM),

 

 

both the ZERO and SPAN buttons will appear. This is

 

 

acceptable and just do not press ZERO button.

 

 

 

9.

Press ENTR

Pressing ENTR actually changes the calculation equations so

 

 

that the concentration displayed is the same as the expected

 

 

span concentration you entered above, thus spanning the

 

 

instrument.

 

 

 

10.

Press EXIT

Pressing EXIT returns the instrument to SAMPLE mode.

 

 

 

Step 3 - Review the quality of the calibration:

Calibration Quality Check Procedure

Step Number

Action

Comment

1.

Scroll the TEST

Typical SLOPE value is 1.0 ± 0.3. If the value is not in this

 

function menu until

range, check Section 8.7 or 10. If the SLOPE value is in the

 

SLOPE is

acceptable range the instrument will perform optimally.

 

displayed.

 

2.

Scroll the TEST

The M100AH will display the OFFSET parameter for the

 

function menu until

SO2 equation. A value less than 200mV indicates calibration

 

OFFSET is

in the optimal range. If the OFFSET value is outside this

 

displayed.

range, check Section 8.7 and 10.

Step 4 - The M100AH is now ready to measure sample gas.

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Teledyne instruction manual M100AH is now ready to measure sample gas