Instruction manual

8.0 DETAILED DATA SETTING SM425 INSTRUCTION MANUAL
42500001 REV A 119
8.0 DETAILED DATA SETTING
8.1 Configuring Analog Outputs
The following paragraph describes configuring the analog outputs.
8.1.1 Setting Concentrations for Analog Outputs
To set the minimum and maximum currents, proceed as follows:
1. Select Setup in the Execution/Setup display screen.
2. Select the mA-output setup in the Setup display screen.
3. Select mA-output1 in the mA-output display screen.
4. Select “Min. oxygen conc.” in the mA-output1 range display screen and press the [Enter] key.
The numeric-data entry display then appears. Enter the oxygen concentration for the minimum
current (4 mA); for example, enter “010” for 10% O
2
.
5. Select “Max. oxygen conc.” in the mA-output1 range display screen and enter the oxygen
concentration for the maximum current (20 mA) in the same manner as in step 4 above.
6. Configure mA-output2 concentrations in the same way as mA-output1.
8.1.2 About Analog Concentration Ranges
The minimum oxygen concentration for the minimum current (4 mA) is 0% O
2
or 6% to 76% O
2
. The
maximum oxygen concentration for the maximum current (20 mA) ranges from 5% to 100% O
2
, and must
be at least 1.3 times the concentration of the minimum current. The analyzer will not accept values that
do not meet these requirements.
Setting example 1
If the concentration for 4 mA is 10% O
2
, the concentration for 20 mA must be 13% O
2
or greater.
Setting example 2
If the concentration for 4 mA is 75% O
2
, the oxygen for 20 mA must be greater than 98% O
2
(75 X 1.3).
(Numbers after the decimal point are rounded up.)