Bacharach Neutronics 5100E Operation Manual page 32

Analyzer Operation
Disconnect the measured process from the sensor by completely removing the installed 1/8" MNPT fittings
from the sensor flow-through head sample inlet port (this step is not necessary if using a fixed gas manifold
– section 2.3.1). If it is necessary to exhaust to an alternate path during calibration, completely remove the
installed 1/8" MNPT fittings from the sensor flow-through head sample exhaust port. Connect the oxygen
sensor to an alternate exhaust location as in section 2.1.2.3.
3.2.1.2 Step-2; Apply zero calibration gas to the Oxygen Sensor (Optional – This calibration has been
performed at the factory. The user may perform this calibration for verification using the
procedure below
Note: The Model 5100 analyzer must be calibrated to a nitrogen zero gas that is at least 99.999% pure.
Failure to do so will affect the accuracy of the analyzer. Any other inert gas may be substituted if the
process background gas is a gas other than nitrogen.
Attach a regulated (see Appendix B) calibration gas source to the sample inlet of the sensor flow through
head. Note that to maintain accuracy of the analyzer, it is strongly recommended that the calibration gas
pressure and flow rate is similar to the process gas pressure and flow rate. Wait for the analyzer display to
stabilize (at least 5 minutes).
Warning
: Never apply an unregulated gas supply to the oxygen sensor. Failure to do so may
cause damage to the oxygen sensor.
3.2.1.3 Step-3;
After a regulated stream of calibration gas has been applied to the sensor, press and release the "MODE"
key once. The 7-segment alphanumeric display will show "CAL", then an oxygen concentration value.
Adjust the displayed oxygen concentration value to read "0.00" by pressing the "UP" or "DOWN" arrow key
as required. Press and release the "MODE" key four times to return to Run mode.
Note: The calibration data will not be updated if the "UP" or "DOWN" key is not pressed. If the analyzer
reading is exactly similar to your calibration gas, press the "UP" key once and then the "DOWN" key once
before pressing the "MODE" key four times to ensure that the calibration information is updated.
3.2.1.4 Step-4;
Note: The Model 5100E analyzer has been factory calibrated to either ambient air for 0-25% full scale range
version, or 95% for 0-100% full scale range version. Please refer to the certificate of calibration for details
on the analyzer's factory span gas. The accuracy of the analyzer may be improved by performing your span
calibration with a certified calibration gas at or near your expected process gas concentration.
Manual Part Number:
C5-06-4900-08-0
Calibrate the Analyzer (Optional)
Apply span calibration gas to the analyzer
Revision Level: C
ECO 8029
File Name: MN-A-0008 Page 3-2