INFICON 2020ppbPRO Portable Photoionization Detector - Manual (Page 61)

ISP-074-576-P1D 55
Date Format
The date format can be expressed either as MM/DD/YYYY, or as DD/MM/YYYY.
Choose either option via the SELECT soft key.
Language
The information on the 2020ppbPRO display screen can be presented in five
languages: English, French, German, Spanish, and/or Italian. On selecting
Language from the MENU, the five languages will appear as a list. Using the center
soft key, highlight the desired language and use the SELECT soft key to set the
language.
Units
The 2020ppbPRO can display readings in three units of measure: PPM (parts per
million), PPB (parts per billion), or mg/M
3
(milligrams per cubic meter). On selecting
Units from the MENU, the three choices will appear as a list. Using the center soft
key, highlight the desired Units of Measure and use the SELECT soft key to set the
choice.
NOTE: To utilize the mg/M
3
unit of measure, the instrument must be configured and
operated with a compound chosen from the 2020ppbPRO ’s Preset RF library
because a molecular weight value is needed for the mg/M
3
calculation. If you wish
to use the mg/M
3
unit of measure while doing TVOC work, you should use a
memory slot with Isobutylene selected from the Preset RF library. Refer to Section:
Response Factors and Memory Slots for further information.
Sample Collection Mode
The 2020ppbPRO can be used to collect samples for further analysis at another
location with another instrument (e.g., back at a laboratory using a GC). Sample
collection is conducted utilizing the optional INFICON Tube Holder (A1790500) and
sample collection tubes. On selection of SAMPLE MODE from the UNIT SET UP
menu, the pump will shut off and the user will be instructed to attach the TUBE
HOLDER and fresh SAMPLE TUBE. The SAMPLE soft key will activate the pump
for a short period of time drawing ambient air into the SAMPLE TUBE. When
finished, the user will be prompted to either continue sampling or return the
2020ppbPRO to normal operating mode.