Dräger Multi-PID 2, Руководство пользователя, Страница: 65 / 107

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Menu Functions
Sample Collection
The " Sample Collection " function is used to suck a defined air vol-
ume through the device, e.g. to fill a preceding sampling tube (sam-
pling tube with activated carbon 67 33 011) or a gas-sampling tube
with a defined air volume. The sampling tube or the air collected using
the gas-sampling tube can be later analysed in a lab. This process is
menu-driven. The desired air volume in litres can be adjusted using
the arrow keys. It takes three minutes to take a sample of one litre.
In TVOC mode, the
" Sample Collection " function is in the " Unit
Setup " menu. In Gas mode, this function is in the main menu.
1. Press the " menu " key. Highlight " Unit Setup " , then press
" select " . Use the "
l
" key to highlight " Sample Collection " ,
then press " select " .
2. Use the arrow keys "
q
" and "
l
" to set the value.
3. Press " done " to accept the set value.
Memory slots Menu
Only available in TVOC mode.
General Information
The response of a PID to a compound is dependent on its ionization
potential. In certain situations when the user is confident that only a
single specific compound exists, they can set up the Multi-PID 2
using an isobutylene calibration to mimic the Multi-PID 2 response as
if the Multi-PID 2 was calibrated using that specific single compound.
In situations where only a single pure compound is present in air, the
Multi-PID 2 should be calibrated with a standard of that specific com-
pound as span gas.
NOTE:
To utilize the » Mg/M3 « unit of measure, the instrument must be
configured and operated with a compound chosen from the
Multi-PID 2’s Preset RF library because a molecular weight value
is needed for the » Mg/M3 « calculation. If you wish to use the
» Mg/M3 « 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.