sewerin EX-Tec HS 610, Operating Instructions Manual

Page: 7 / 105

III
Contents Page
5.2 Adjustment ..............................................................................62
5.2.1 Scope ...................................................................................62
5.2.2 Test gases for the adjustment ..............................................63
5.2.3 Special features of adjustment with gas mixture ..................64
5.2.4 Preparation ...........................................................................65
5.2.5 Performing the adjustment ...................................................65
5.2.5.1 Adjusting the zero point.....................................................66
5.2.5.2 Adjusting the sensitivity .....................................................66
5.2.6 Carrying out an oxygen adjustment .....................................68
5.2.6.1 Adjusting the zero point for oxygen ...................................68
5.2.6.2 Adjusting the sensitivity for oxygen ...................................69
5.3 Servicing .................................................................................69
6 Faults ......................................................................................70
7 Appendix ................................................................................71
7.1 Specifications and permitted operating conditions ..................71
7.2 Alarms .....................................................................................72
7.2.1 Features ...............................................................................72
7.2.2 Occupational exposure limits (OEL) and excess factors
(STEL and LTEL) ..................................................................75
7.2.3 Alarm thresholds (factory settings) .......................................75
7.2.4 Setting ranges for gas types ................................................76
7.3 Limit values for the device inspection .....................................77
7.4 Memory capacity .....................................................................78
7.5 Sensors ...................................................................................79
7.5.1 Infrared sensors (IR) ............................................................79
7.5.1.1 Methane CH
4
, propane C
3
H
8
, butane C
4
H
10
for
Warning %LEL and Warning ExTox ..................................79
7.5.1.2 Methane CH
4
, propane C
3
H
8
for gas measuring ...............80
7.5.1.3 Carbon dioxide CO
2
for warning ExTox .............................80
7.5.1.4 Carbon dioxide CO
2
for measuring in bar holes ................81
7.5.2 Electrochemical sensors (EC) ..............................................81
7.5.2.1 Oxygen O
2
........................................................................81
7.5.2.2 Carbon monoxide CO .......................................................82
7.5.2.3 Hydrogen sulphide H
2
S .....................................................83
7.5.3 Gas-sensitive semiconductor ...............................................83
7.6 Technical information ..............................................................84
7.6.1 Identification sticker (back of device) ...................................84
7.6.2 Cleaning ...............................................................................84