User`s guide

USER'S GUIDE____________________________________________________________________

8. Set the probe into the sample cell. Tighten the probe by turning

it from the thread nut. Do not tighten the probe from the handle.

9. If the sample cell is installed correctly, there is no leakage in the

connections. You can test this by closing the valve temporarily.

CAUTION

By using the quick connector, the process pressure can be maintained

during the installation or removal of the sampling cell. Take a firm

hold of the device to keep it in your hands while removing it. When

the thread adapters are used, the process pressure has to be shut down

for the installation or removal of the probe.

DSS70A Sampling System

DSS70A is a sampling system for taking gas samples from hot, dirty,

or pressurized processes. The gas collecting system is built in the

briefcase including the DM70 meter. The system consists of a sample

pump that draws out the sample gas, a filter to clean the sample from

particles

(> 7µm), and a sample valve and flowmeter to adjust the flow rate.

Sample Gas

Inlet

Sample Gas

Outlet

Sample Pump

FlowmeterSample valve

Sample Cell

for Td Probe

Filter

The sample gas going into the system must meet the following

requirements:

- The temperature must be <40 ˚C (104 ˚F). Thus, when using

the FEP tube of 2 meters (provided), the temperature of the

process gas should be less than 200 ˚C (392 ˚F). When the

temperature of the sample gas is over 200 ˚C, a stainless steel

tube (not provided) should be used.

- The sample gases must be: Air, N

, non-toxic gases, inert,

non-flammable gases.

- If the sample is taken from a pressurized process (1.2 ... 20

bar), the sample pump must be turned off and the tube from

the flowmeter to the pump must be detached.

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