ELTRA ON-900 User Manual

Copyright  2005 by ELTRA GmbH Germany – January 2005 – Operation Manual ON-900
1.6-1
1.6 Cooling water
The ELTRA ON-900 has two cooling water circulation systems, a primary and a secondary
system.
The primary system provides furnace cooling, and consists of:
 The external barrel.
 The internal section of the analyser, which includes water pump, equalising tank and
furnace.
The cooling water circulates from the barrel to the furnace, via the connections (2). It then
returns to the barrel, via the connections (1). Inside the barrel, the water is kept cool by the
inter-cooling coil of the primary system.
The secondary system starts from the drinking water tap, the water is then fed to the water
flow switch, via connections (5). The water then flows to the inter-cooling coil inside the
barrel, via connections (4). Finally, the water flows to the drain, via connection (6)
Connections:
The analyser and the barrel is connected as shown in the above drawing.
It is possible to install the barrel away from the analyser. The barrel should not be installed
more than 5m away and 1m above the instrument. If this is not possible, ask the factory for a
modification.
Tap water drain
3
Ga s out let
Fuse slow blo w
4A
23 0V AC 1~ N 50 /60 H z
max. 75 00 Wa tts
40 0V AC 3~ N 50 /60 H z
Nit rog en in let
2 - 4 b ar (3 0- 6 0p si )
99 , 9% pu r e
1
1
4
5
6
4
2
2
3
Tap water inlet
4-3-3

ELTRA ON-900 Specifications

General

Brand	ELTRA
Model	ON-900
Category	Measuring Instruments
Language	English