9023927 - 2nd edition - May 2007
Page 5 of 72 Pages
Intended Use
Intended Use
Dräger
Polytron
®
7500
— For stationary, continuous monitoring of gas concentrations in the intake ambient
air, with built-in DrägerSensor
®
.
— The Polytron 7500 is available in four types:
— The measuring range may be selected, but it is dependent on the sensor installed.
— With 4 to 20 mA interface or HART
®
for connection to a suitable control unit.
— Optional: compatible with LON interface for connection to a suitable control unit.
_______________
® Polytron is a registered trademark of Dräger.
DrägerSensor is a registered trademark of Dräger.
HART is a registered trademark of HCF, Austin, Texas, USA
Type
Order No.
Polytron 7500
DrägerSensor
Dräger Polytron 7500 NF
3
0 to 50 ppm NF
3
(CAS 7783-54-2)
83 18 827
68 11 125
Dräger Polytron 7500 PFC
0 to 30 ppm C
5
F
8
(CAS 559-40-0)
0 to 30 ppm C
4
F
6
(CAS 685-63-2)
83 18 828
68 11 120
Dräger Polytron 7500 NF
3
LON
0 to 50 ppm NF
3
(CAS 7783-54-2)
83 18 829
68 11 125
Dräger Polytron 7500 PFC LON
0 to 30 ppm C
5
F
8
(CAS 559-40-0)
0 to 30 ppm C
4
F
6
(CAS 685-63-2)
83 18 830
68 11 120
Note:
Polytron 7500 cannot be used with DrägerSensors other than the above
listed. The corresponding DrägerSensor must be used to ensure that the unit
functions correctly.
ATTENTION! Explosion hazard!
Do not operate underground or in explosion-hazard areas!
The Polytron 7500 does not meet the standards for flameproofing and explo-
sion protection.
Not to be used for intake from explosion-hazard areas!
The concentration of flammable substances in the intake air must be limited
to values below the LEL
(Lower Explosive Limit)!
The gas mixture may otherwise be ignited because of the high pyrolysis tem-
perature in the Polytron 7500.
Only suitable for use in buildings!
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