Dräger SAM 3100, Инструкция по эксплуатации

Страница: 6 / 16

6 Dräger SAM 3100/3200
Installation
4.6 Motor circuit protector (option)
 The motor circuit protector is delivered together with
the aspirator system as a separate item.
 Adjustment range 0.25 to 0.4 A.
 Using a screwdriver, set the value in accordance with
the rating plate on the motor of the gas sampling pump
(Ex pump 0.3 A, non-Ex pump 0.4 A).
 Installation is carried out on site by the operator in
accordance with the assembly instructions. Information is
included in the documentation.
5 Installation
5.1 Mechanical fastening
 The Dräger SAM 3100 / 3200 aspirator system is delivered
fully assembled.
 The installation of the base plate or housing depends on
the local situation. Ensure that the installation is sufficiently
firm and free of vibration.
 Connect the intake side to the hose laid by the customer,
using the compression fitting for a hose of 6 x 1 mm
(see section 5.2 on page 6).
 The exhaust line is 6 x 1 mm as standard.
 For exhaust lines more than 10 m in length, the cross-
sections should be expanded by the customer from the
outlet of the aspirator system in order to prevent pressure
build-up in the system.
5.2 Installing gas lines
 The gas lines may only be connected by skilled personnel.
Local legislation and regulations must be observed.
 When selecting gas lines (material, length), consider potential
adsorption effects.
 When designing the length of the intake line, bear in mind
that a longer line will lengthen the alarm lag time.
 Recommended hose material: PTFE (Teflon) or PE,
depending on the chemical resistance to the target gas.
 When using other hose materials or diameters, a transition
to 6 x 1 mm PTFE hose must be created.
 Cut off hose squarely!
Assembly instructions for PTFE hose connection
 Slide the lock nut and clamping ring over the hose
as illustrated.
 Slide the end of the hose over the nozzle to the stop.

Screw in the lock nut by hand until it is hand-tight.

To open the hose connection, unscrew the union nut and
remove the hose, together with the clamping ring, from the
aspirator system.
 For air containing dust, an intake filter (order no. 68 06 743)
should be provided at the intake point to protect the aspirator
system and the line.

Avoid external influences such as splashing water, oil etc.
and the possibility of mechanical damage.
 Pay attention to ventilation!

Always locate the intake point in the air flow between
a potential discharge or collection point and points of
potential hazard.
 Pay attention to the density of gas!

For gases with a density lower than that of air, the intake
point must be located above any possible leak or at the
highest point at which large concentrations of gas may
occur. For gases and vapours with a density greater than
that of air, the intake point must be located below a possible
leak or at the lowest point at which such gases and vapours
may occur.
 Pay attention to the seal of the gas connections, as leaks
can cause significant measuring errors to occur at the gas
transmitter.

When testing the seal, no overpressure or underpressure
should be generated at the sensor!
1 Screw-in piece 2 Nozzle
3 Clamping ring 4 Lock nut
5 Hose
00423944_01.eps
1 2 3 4 5
00523944_01.eps
00623944_01.eps
00723944_01.eps