Vaisala DRYCAP DMT346 Guia do Utilizador descarregar pdf (Página 142)

User's Guide _______________________________________________________________________

140 __________________________________________________________________ M210762EN-A

Mixing ratio:

99.621 ⋅=

(2)

Absolute humidity:

⋅= 68.216

(3)

Enthalpy:

Th ⋅

⋅

−

= 5.2)00189.001.1()15.273(

(4)

The water vapor saturation pressure P

is calculated by using two

equations (5 and 6):

∑

−=Θ

TCT

(5)

where:

T = temperature in K

= coefficients

= 0.4931358

= -0.46094296 × 10

-2

= 0.13746454 × 10

-4

= -0.12743214 × 10

-7

1 2 ... 137 138 139 140 141 142 143 144 145 146

USER'S GUIDE 1
Table of Contents 3
CHAPTER 4 4
CHAPTER 5 6
CHAPTER 6 6
List of Figures 7
List of Tables 8
GENERAL INFORMATION 11
Version Information 12
Related Manuals 12
WARNING 13
CAUTION 13
ESD Protection 14
Recycling 14
Feedback 14
Trademarks 15
License Agreement 15
Warranty 16
PRODUCT OVERVIEW 17
Basic Features and Options 19
Operating Principle 19
Parts Description 20
Transmitter Body 20
0604-006 21
Probes and Cooling Set 22
INSTALLATION 23
0604-008 24
0604-009 25
0604-010 25
0604-011 26
0604-012 27
Kit for Pole or Pipeline 28
Mounting Rain Shield with 29
Installation Kit 29
Panel Mounting Frame 30
DMT345 Probe Mounting 31
Installation with Flange 31
0604-020 32
Parts of the Cooling Set 34
Mounting Instructions 35
0604-024 36
0604-025 37
Cable Bushings 38
Cable Grounding 39
Connections to 24 VAC Power 42
Power Supply Module 43
Installation 44
Warnings 45
Alarm Relays 48
RS-422/485 Interface 50
1 (not connected) RxB 51
2 (not connected) RxA 51
4 B TxB 51
5 A TxA 51
RS-485 master Data DMT346 52
8-Pin Connector 54
OPERATION 55
Basic Display 56
Graphic History 57
Menus and Navigation 58
Display Backlight Setting 59
Changing Language Setting 59
Rounding Setting 59
Display Contrast Setting 60
Keypad Lock (Keyguard) 60
Menu PIN Lock 60
Factory Settings 61
Serial Line Communication 62
User Port Connection 63
Service Port Connection 63
Terminal Program Settings 64
DMT346/2.01 65
List of Serial Commands 66
Table 22 Other Commands 67
Getting Measurement Message 68
FTIME and FDATE 69
Resetting the Device 71
Keypad/Menu Locks 71
General Settings 72
Modifier Description 73
Using Buttons on Motherboard 76
User Port Serial Settings 77
>SERI 600 N 8 1 78
600 N 8 1 78
Mode Output Commands used 79
SEND [addr] 79
>INTV 10 min 79
Output intrv. : 10 min 79
OFF No filtering 80
Device Information 81
Data Recording 83
Selecting Data Recording 83
Quantities 83
View Recorded Data 84
Deleting Recorded Files 87
Analog Output Settings 87
0503-045 88
Analog Output Quantities 89
AMODE/ASEL 90
Analog Output Tests 91
Setting 92
Relay Operation 93
Quantity for Relay Output 93
Relay Setpoints 93
Hysteresis 94
Enabling/Disabling Relays 95
Indication Led Operation 95
Setting Relay Outputs 95
0605-040 96
Testing Operation of Relays 98
RS-485 Module Operation 99
OPEN [nn] 101
Sensor Functions 102
AutoCal 102
Automatic AutoCal 103
Manual AutoCal 103
Sensor Purge 104
Power-Up Purge 105
Manual Sensor Purge 105
Interval Purge 105
0504-051 106
Sensor Warming 107
CALIBRATION AND ADJUSTMENT 109
Adjustment Information 111
Using Display/Keypad 112
Using Serial Line 113
>a01 117
Wait for Purge data...OK 117
Adjusting Temperature 118
Adjusting Temperature Using 118
Display/Keypad 118
Adjusting Analog Outputs 120
Serial Line 121
MAINTENANCE 123
Error States 124
Error Message Action 125
Technical Support 126
Return Instructions 126
Vaisala Service Centers 127
TECHNICAL DATA 129
0605-043 130
Property Description / Value 131
Models) 132
Options and Accessories 133
Technical Specifications of 133
Optional Modules 133
Description Specification 134
Dimensions in mm (inches) 135
Spare Parts 136
APPENDIX A 137
CALCULATION FORMULAS 141
99.621 ⋅= 142

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