User`s guide

Chapter 7 ____________________________________________________Sampling from Processes
The DSS70A sampling system can be ordered from Vaisala separately
or in connection with the Vaisala DRYCAP
®
Hand-Held Dewpoint
Meter DM70.
0403-048
Figure 25 DM70 with the Case
The following numbers refer to Figure 25 on page 55.
1 = Fuses
2 = Inline filter (7 µm)
3 = MI70 recharger adapter
4 = Pump on/off
5 = MI70 indicator
6 = Sample valve
7 = Sampling tube
8 = Sample gas inlet and outlet
9 = Flowmeter
10 = Detach this tube when sampling from pressurized processes.
DSS70A Sampling Procedure
Make sure that the pump is switched off. Lift the flowmeter to a
vertical position. Then follow the instructions below:
1. Close the sample valve by turning it clockwise as far as it goes.
2. If the process is not pressurized (600 ... 1200 mbar), continue
from step 3. If the process is pressurized
VAISALA _______________________________________________________________________ 55