START-UP
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Manual EMC 500 · EN01 · 2008-02
10
Start-Up
Location of the EMC 500
Do not install the not explosion-protected (Non Ex) design of the EMC 500 measuring
device in areas subject to explosion hazards!
Since the EMC 500 is fitted with a heating element for the measuring sensor, the room temperature
must not drop below -20°C and must not rise to more than +55°C.
Mechanical connection
The EMC 500 has two gas inlets (one for the measuring gas and the other for the calibration gas)
and one gas outlet.
In addition, a bypass is installed which can be connected in the event of long supply lines and high
pressures in order to reduce reaction time. The flow through the bypass can be adjusted by means
of the control valve (3).
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Both inlets are designed for 1/8" Swagelok couplings and can be used for pressures of a
minimum of 500 mbar and a maximum of 3.0 bar.
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The gas outlets are designed for 6 mm Swagelok couplings.
The blow-off pipe must be directly connected to the atmosphere or a gathering system. Make
sure that there is no back pressure coming from a gathering pipe.
Enlarge the outlet of the EMC 500 to 12 mm if blow-off pipes of a greater length are used.
In the event of small pipe diameters, the bypass blow-off pipe may not be discharged
together with the exhaust gas pipe, since high flow in the bypass pipe may produce a back
pressure in the exhaust gas pipe.
Please follow the assembly instructions for Swagelok connections in the annex. You must bear in
mind in particular, that you should never retighten these connections, otherwise they become
leaky.
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