OFFER - MESA

7. 1. ZAJÍMAVÉ STRÁNKY - MESA Electronic GmbH

3. 2. 11. Air Supply Unit - LV1

Function:

The LV1 air supply unit is used for continuously supplying all common oxygen probes with reference air. A defined volume of filtered external air is pressed into the inside of the zirconium oxide pipe. The low qauqe pressure largely prevents any penetration of the furnace atmosphere into the zirconium oxide pipe.The volume of reference air selected should not be too great otherwise there will be an unnesessary cooling of the built-in thermoelement.

As a rule, oxygen probes with throught zirconium oxide pipes (MESA oxygen probes) require almost no reference air so that the temperature measurement error is negligible in these probes. In addition to the reference air the LV1 also offers an air output for the probe rising. This externally triggerable air output is used for rinsing out the space between the protective pipe and the zirconium oxide pipe. This function is triggered automatically at certain times for a certain duration by state-of-the-artC-level controllers (Carbomat-M). The aim of this function is to remove soot particles and other contamination by burning off and rising out.
Technical Data:

Pump:
Diaphragm pressure pump
End pressure + 20 % - 2,8 (0,27) mWs (bar)
Free yield - 168 l/h
Built-in filter
Reference air:
Measuring range (adjusttable with valve)
1,6 l/h to 16 l/h
Accuracy class 2,5 VDI/VDE 3513, sht. 2
Readoff lenght 100 mm
Rising air:
Measuring range (adjustable with valve)
10 l/h to 100 l/h
Accuracy class 2,5 VDI/VDE 3513, sht. 2
Readoff length 100 mm
Built-in non-return valve

Measuring principle:
Floating body
Switch cabinet:
Wall housing, steel - plated
RAL 7032 pebble grey
Protection type IP 55
Cable and hose glands PG 13,5
Dimensions:
380 x 300 x 210 mm (W x H x D)
Air connections:
Hose nozzles for 4 mm I.D.
Electr. data:
Pump, selenoid valve - 230 V / 50 Hz
Power consumption:
approx. 12 VA
Ambient temperature:
-10 to 50 degrees Celsius

PROCON-CL, a.s., Jizni 2140, 470 01 Ceska Lipa, Tel/Fax: 487823277, 487823672, E - mail: procon@clnet.cz