Vaisala HUMICAP HMT310 Guia do Utilizador descarregar pdf (Página 51)

Chapter 4 _________________________________________________________________ Operation

VAISALA ________________________________________________________________________ 51

All Devices in POLL Mode Send Their

Addresses

Syntax: FIND<cr>

List Commands

Syntax: HELP<cr>

Set Ambient Pressure for Calculations

Syntax: PRES aaaa.a<cr>

Syntax: XPRES aaaa.a<cr>

Where

aaaa.a

Absolute pressure (hPa)

The XPRES command should be used if the value is changed frequently.

Its value is not retained at reset, and when set to 0, the value set with the

PRES command is used.

Example:

If the gauge pressure is 1.4 bar, set the pressure value to 2.4 bar (= 2400

hPa)

>pres 2400

Pressure : 2400

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USER'S GUIDE 1
Table of Contents 3
CHAPTER 4 4
CHAPTER 5 5
CHAPTER 6 5
CHAPTER 7 6
APPENDIX A 6
List of Figures 7
List of Tables 8
GENERAL INFORMATION 9
Version Information 10
Related Manuals 10
Documentation Conventions 10
ESD Protection 11
Recycling 12
Regulatory Compliances 12
Trademarks 13
Software License 13
Warranty 13
PRODUCT OVERVIEW 15
Output Quantities 16
HMT310 Transmitter Parts 17
Probe Options 18
Filter Options 19
Sensor Options 19
INSTALLATION 21
Transmitter Unit 22
0507-035 23
Mounting the Probes 25
0507-024 26
0507-040 28
0507-041 30
CAUTION 32
Connections 33
Power Supply Requirements 34
OPERATION 35
USB Connection 37
Indicator 38
Terminal Program Settings 39
List of Serial Commands 40
Measurement Output 42
Output Reading Once 43
Set Serial Interface Mode 43
Serial Line Settings 43
Output Formatting 45
Set Time and Date 47
Outputs 47
Commands) 49
Other Commands 50
Addresses 51
List Commands 51
Set Result Filtering 52
Reset Transmitter 53
Display Error Messages 53
Set Analog Output Mode 54
Scale Analog Outputs 55
Test Analog Outputs 56
Readings 56
Chemical Purge (Optional) 57
Output signal 58
Set Chemical Purge Interval 59
Chemical Purge in Powerup 60
Sensor Heating (Optional) 61
Sensor Heating ON/OFF 62
Setting Heating Parameters 62
Example: 63
MAINTENANCE 65
Changing the Sensor 66
Technical Support 67
Product Returns 67
CALIBRATION AND ADJUSTMENT 69
Sensor Change 71
Set Calibration Date 72
Analog Output Calibration 72
(in Two Points) 73
Low End Adjustment 74
High End Adjustment 75
One Point) 76
MPC Command Syntax 78
Starting MI70 Adjustment 81
Adjusting RH with MI70 82
Adjusting T with MI70 83
1-point T adjustment 84
2-point T adjustment 84
Environment Settings 85
Last Adjustment Date 85
TECHNICAL DATA 87
0507-021 88
Calculated Variables 90
Dewpoint Temperature 92
Spare Parts and Accessories 93
Dimensions in mm (inches) 94
Rain Shield Dimensions 95
120 (4.72) 96
12 (0.47) 96
Figure 26 HMT314 Dimensions 97
Figure 27 HMT315 Dimensions 97
Figure 28 HMT317 Dimensions 98
Figure 29 HMT318 Dimensions 98
PROBE INSTALLATION KITS AND 99
INSTALLATION EXAMPLES 99
HMT317) 100
Cable Gland 101
0508-027 102
*M210619EN* 105

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