Heath Consultants ODORATOR 2 - Manual (Page 10)

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the “ZERO” key.
8.
The LCD will show “TDL” for Threshold Detection Level. Optionally a SELF TEST may be
performed in this mode. To perform a SELF TEST, fully open the Flow Metering Valve,
wait about 10 seconds and then press the “SELF TEST” key. To pass the SELF TEST the
flow must be sufficient to produce a reading greater than or equal to the calibration target
value (typically 1.00 %). If less than the calibration target value the SELF TEST will fail and
ERROR will be displayed. Check the gas supply and all valves prior to repeating the test.
All SELF TEST results are recorded. Fully close the Flow Metering Valve after performing
a SELF TEST, wait about 30 seconds and do not sniff the exhaust port during a SELF
TEST. When a TDL test is to be performed, slowly open the Flow Metering Valve counter-
clockwise 1/4
– ½ turn. Wait about 30 seconds and then position the nose approximately
3/4 inch (20 mm) above the exhaust port and sniff the exhaust. Your upper lip may lightly
touch the front edge of the exhaust port.
9. If no odor is detected in the exhaust, repeat step 8.
**NOTE** The user should frequently pause when sniffing for odorant by moving the nose
away from the instrument, breathing fresh air and then continue testing. This precaution
is necessary because the sense of smell fatigues rapidly during this type of test.
10. The first faint smell of odor is called the Threshold Detection Level. Considerable variation
will exist among individuals in detecting this threshold level. When detected press the
“READ” key to record the corrected reading with GNSS location and timestamp.
11. The LCD will show “RDL” for Readily Detectable Level. Slowly open the Flow Metering
Valve another 1/4
– 1/2 turn, wait about 30 seconds and then position the nose
approximately 3/4 inch (20 mm) above the exhaust port and sniff the exhaust.
12. If the exhaust does not have a readily detectable odor repeat step 11. If the exhaust has a
readily detectable odor, press the “READ” key to record the corrected reading with GNSS
location and timestamp. This reading is the Readily Detectable Level which should be
detected by the average
person’s sense of smell.
13. The ODORATOR 2 will now automatically go into PURGE mode. The Flow Metering Valve
must be closed while in PURGE mode. In PURGE mode the last set of readings may be
reviewed by pressing
either the “↑” or “↓” keys to scroll through the last ZERO, TDL and
RDL values. After the PURGE mode times out the ODORATOR 2 will automatically power
off and enter SLEEP mode. The LCD shows a flashing asterisk
“ * ” to allow the user to
abort PURGE mode and re-enter CONDITIONING mode by pressing the “ * “ key. The
user
may also choose to press and hold the “PWR” key to turn the ODORATOR 2 “OFF”
after sufficiently purging the flow system by entering SLEEP mode (“ZZZZZ” will briefly
display).
14. When testing is complete, close the gas supply outlet valve, disconnect the sample hose
from the gas supply outlet and verify the Flow Metering Valve is closed. Do not store the
sample hose in the instrument’s case. A mesh bag attached to the handle is included for
tubing and fittings storage.
**NOTE** Use of Bluetooth is described in the OdorSeer manual.