Vaisala DRYCAP DM70 User's Guide Page 5

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________________________________________________________________________________
Changing the Battery ..................................................... 57
Changing the Filter......................................................... 59
Changing the Fuses....................................................... 60
CHAPTER 8
MEASURING MOISTURE IN SF
6
GAS-INSULATED EQUIPMENT...........61
Overview .................................................................................61
Operating Environment ....................................................... 62
Measuring............................................................................ 62
CHAPTER 9
CALIBRATION, ADJUSTMENT, AND MAINTENANCE............................. 65
Calibration...............................................................................65
User Calibration and Adjustment ........................................ 65
Adjusting DM70.............................................................. 66
Adjusting DMT340 Series Transmitters Using DM70 as
Reference or Terminal ................................................... 66
Adjusting Dewpoint................................................................ 67
Two-Point Relative Humidity Adjustment............................67
Two-Point Relative Humidity Adjustment of DMT340
Series Transmitters Using DM70................................... 68
Adjusting Dewpoint T
d/f
........................................................ 70
T
d/f
Adjustment of DM70................................................. 70
T
d/f
Adjustment of DMT340 Series Transmitters using
DM70..............................................................................71
To Same as T
d/f I/II
...................................................... 72
1-Point Adjustment.................................................... 73
Adjusting Temperature.......................................................... 74
Temperature Adjustment of DM70...................................... 74
One-Point Adjustment....................................................74
Two-Point Adjustment.................................................... 75
Temperature Adjustment of DMT340 Series Using DM70 . 75
To Same as T
I/II
.............................................................. 76
1-Point Adjustment......................................................... 76
2-Point Adjustment......................................................... 77
Vaisala Service Centers......................................................... 78
CHAPTER 10
DE-COMMISSIONING, DISMANTLING, AND DISPOSAL......................... 79
CHAPTER 11
TECHNICAL SPECIFICATIONS..................................................................81
Measured Variables................................................................ 81
Dewpoint Temperature........................................................ 81
Temperature................................................................... 83
PPM (ppm
v
or ppm
w
)...................................................... 83
Absolute Humidity (DMP74A Probe Recommended).... 84
Mixing Ratio (DMP74A Probe Recommended) ............. 84
Relative Humidity (DMP74A) .........................................84
Measurement Environment............................................ 84
Probe General................................................................ 85
VAISALA ________________________________________________________________________ 3
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