Dwyer 1207A - Manual (Page 8)

1207A manual Page 8
4. USING THE ANALYZER AND ITS FOUR BUTTONS:
Switching ON
the Analyzer
Press to switch the unit ON in fresh air outside the property about
to be tested. This lets the analyzer auto calibrate its’ sensors properly.
On switch on, the analyzer beeps four times and displays the fuel
previously selected, the date and time and model number. Its’ bottom line
counts down from 60 until the sensors are ready to use – This normally
takes 20 - 30 seconds but may take longer as sensors get older. If the
analyzer will not auto calibrate, its’ sensors need to be replaced or
recalibrated by an authorized repair center.
If the inlet probe is connected to the analyzer during its’ countdown the
measured temperature from the inlet probe will be used as the inlet
temperature.
If the inlet probe is not connected and you connect the flue probe’s
temperature plug to the analyzer during countdown the measured
temperature from the flue probe will be used as the inlet temperature.
If neither probe is connected during countdown the analyzer’s internal
ambient temperature will be used as the inlet temperature.
Switching OFF
the Analyzer
Press to switch the analyzer OFF. The display counts down from
30 with the pump on to clean the sensors with fresh air – If the probe is
still connected, make sure analyzer and probe are in fresh air.
Press / if you want to stop the countdown and return to
making measurements.
Note: the analyzer will not switch off until the CO reading is below
20 ppm.
Using UP /
DOWN /
ENTER Buttons
Use the / / keys to change settings (such as time, date
and fuel) when the rotary dial is turned to MENU.
Printing Data
Press and quickly release the key to start the analyzer printing. The
analyzer displays "PRINTING" until this is completed. Press and release
the key again to abort printing.
Make sure the printer is switched on, ready to accept data and its’ infrared
receiver is in line with the analyzer’s emitter (on top of the analyzer).