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DAT420_MAN02_EN.docx • V1R1
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DAT 420
TABLE OF CONTENTS
1.
WARNINGS ........................................................................................................................ 1
2.
SPECIFICATIONS .............................................................................................................. 2
3.
INTRODUCTION ................................................................................................................. 3
4.
EQUIPMENT REQUIRED ................................................................................................... 4
5.
SIMULATION OF THE 4..20 MA CURRENT LOOP .......................................................... 5
6.
CALIBRATION OF DETECTOR......................................................................................... 6
6.1
Calibration mask, gas cylinder and voltmeter ..................................................................... 6
6.2
Calibration for toxic gases ................................................................................................... 8
6.3
Calibration for oxygen ....................................................................................................... 10
6.4
Calibration conditions ........................................................................................................ 11
7.
TROUBLESHOOTING ...................................................................................................... 12
8.
ACCESSORIES AND SPARE PARTS ............................................................................ 12
ILLUSTRATIONS AND TABLES
Figure 1 : Exploded view of the detector ....................................................................................... 3
Figure 2 : Calibration mask ........................................................................................................... 4
Figure 3 : Measurement probes .................................................................................................... 4
Figure 4 : Power supply and simulation of the 4..20 mA current loop ........................................... 5
Figure 5 : Opening the FPH01 sensing head ................................................................................ 6
Figure 6 : Installing the calibration mask and the voltmeter .......................................................... 7
Figure 7 : Calibration for toxic gases ............................................................................................. 8
Figure 8 : Calibration for oxygen ................................................................................................. 10
Table 1 : Technical specifications ................................................................................................. 2
Table 2 : Calibration parameters ................................................................................................. 11
Table 3 : Troubleshooting ............................................................................................................ 12
Table 4 : Accessories and spare parts ........................................................................................ 12
