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Fig. 23: Valves

If the voltage on the valve (V2) remains at 23 V DC, no matter whether the furnace

is opened or closed, then the electronics are defective.

If the valve voltage always stays at zero, then either the wire of the valve to the

microcontroller board is broken or the valve driver is defective.

If the voltage on the valve (V2) is correct, then the valve itself is defective.

Pos: 5.49 /0 020 Über sc hrif ten /ELT RA 1.1 Über sc hri ften /11 C o mbusti o n wit ho ut st art ing anal ysis E LTR A @ 6\mod_1368706920531_9.docx @ 41209 @ 222 @ 1

3.22 35BCombustion without starting analysis

Pos: 5.50 /0 010 ELTR A/ 0015 s ervic e_i nstr uc tio ns/C S-800 _S ervic e/ 001 5 F ehler /01 952 5 M odul Co mbus ti on witho ut s tar ting a nalysi s E LTR A @ 6\ mod_1377688612362_9.docx @ 46771 @ 2 @ 1

In this case, the combustion of the sample begins immediately after the sample

enters the furnace area and before having pressed F5 to start analysis.

Should the combustion start just after closing the furnace then there is a serious

fault.

Fig. 38: Main switch