Table Of Contents - DALEMANS DAT 420 Calibration Manual

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
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
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TABLE OF CONTENTS

ILLUSTRATIONS AND TABLES
DAT 420
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