INSTALLATION, OPERATION AND MAINTENANCE MANUAL – COSA 9610™
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After this adjustment, the plug must be re-installed, and the offset can be checked.
The offset adjustment can be checked by reading the air and gas pressure
indicators. This operation must be repeated until the desired residual oxygen
concentration is reached. After installing the plug with a sealing tape, check for
leakage by means of either a gas leak detector or soap.
It is advisable; to carry out a check on the booster relay adjustment with high Wobbe-
Index calibration gas, directly after setting up the booster set point. Using the on-
screen menu, select 2 Points manual (Dual Range manual for dual range analyzer)
validation. Proceed to the “Wait for cal gas 2 to stable” step (“Wait for cal gas 3 to
stable” for dual range analyzer). When the signals become stable, the display will
show the Residual O2 mV-value suitable to this calibration gas. The setting of the
booster relay is right when the mV-value stays below 67 mV. If not, a positive
offset should be set with help of the booster relay, so that relative more air will be
added and the mV value will fall.
The required Residual O2 mV-signal should be around 65mV for the highest
expected
Wobbe value.
3.2. START-UP OF THE CONTROL UNIT
This chapter describes the procedure to start up the control unit. When a
machine is being started up for the first time a gas calibration must be done first.
3.2.1. Description
This chapter describes the procedure to start up the control unit. When a
machine is being started up for the first time a gas calibration must be done first.
3.2.2. Programming the measurement parameters
Programming the COSA 9610™ is easy with the menu-controlled software. Menu
can be navigated using the cursor keys. The key operations are:
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