RKI Instruments HS-04 - Turning the Calibration Max Span On;Off (MAX.SPAN)

HS-04 Operator’s Manual Appendix B: Gas Select Mode • 95
2. Press and release POWER MODE. The display cycles through the following screens.
3. Press and release POWER MODE to save the current alarm point settings as the default.
4. The instrument returns to the SAVE-AP item in Gas Select Mode.
5. See “Exiting Gas Select Mode (START)” on page 97 to enter Measuring Mode.
Turning Calibration Max Span On/Off (MAX.SPAN)
ON: After a passed calibration, the HS-04 displays the response reading’s maximum adjustment.
A maximum span of 100 ppm indicates that the reading could have been adjusted up to 100 ppm.
If the maximum span value is close to the calibration value, the sensor should be replaced soon.
The upper limit on the maximum adjustment indicated is either twice the calibration value or full
scale, whichever is lower.
OFF (factory setting): There is no maximum span indicator at the end of a calibration.
1. While in Gas Select Mode, press AIR to scroll to MAX.SPAN.
2. Press and release POWER MODE. The current setting flashes.
3. Use AIR to display the desired setting.
4. Press and release POWER MODE to save the setting and return to the MAX.SPAN item in
Gas Select Mode.
5. See “Exiting Gas Select Mode (START)” on page 97 to enter Measuring Mode.
SEL
SAVE - AP
SEL
YES .MODE
SEL
NO .AIR
MAX .SPAN