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DMT152
Vaisala DMT152 User Manual
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User's
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_______________________________________________________________________
28
___________________________________________________________________
M210865EN
-H
0510
-
034
Figure
17
Defau
lt
Assembly of DSC74C
1
=
Gas goes i
n. The
coil can
also be used
here.
2
=
Gas comes
out
3
=
Coil
4
=
Valve
29
31
Table of Contents
Default Chapter
3
Table of Contents
3
Vaisala
3
Chapter 1 General Information
7
About this Manual
7
Contents of this Manual
7
Version Information
8
Related Manuals
8
Documentation Conventions
8
Table 1 Manual Revisions
8
Table 2 Related Manuals
8
Safety
9
ESD Protection
9
Recycling
9
Regulatory Compliances
10
Trademarks
10
Warranty
10
Chapter 2 Product Overview
11
Introduction to Dewpoint Transmitter DMT152
11
Basic Features and Options
11
Table 3 Quantities Measured by the DMT152
11
Transmitter Structure
12
Figure 1 Dewpoint Transmitter DMT152
12
Chapter 3 Functional Description
14
Advanced DRYCAP ® Technology
14
Auto-Calibration
14
Sensor Purge
15
Chapter 4 Installation
16
Selecting the Location
16
Installing the Transmitter
17
Figure 2 DMT152 Installed Directly to Pipeline
17
Figure 3 Removing the Transport Protection Cap
17
Figure 4 Installing the Transmitter
18
Figure 5 Connecting the Cable
18
Wiring
20
Figure 6 Connectors I and II
20
Figure 7 Connector Pinout
20
Table 4 Standard Wiring Pinouts and Wire Colors
20
Figure 8 Output Noise Minimization Wiring Option
21
Output Noise Minimization Wiring Option
21
Connection Cables
22
Figure 9 Cable with Snap-On Connector
22
Table 5 Output Noise Minimization Wiring Option Pinouts and Wire Colors
22
Figure 10 Cable with Threaded Connector
23
Figure 11 LED Cable
23
Figure 12 USB Serial Interface Cable
23
Power Supply Requirements
24
Sampling from Process
25
Pressure
25
Leak Tightness and Materials
25
Flow
25
Sampling Accessories
26
DMT242SC Sampling Cell
26
DMT242SC2 Sampling Cell with Swagelok Connectors
26
Figure 13 DMT242SC2 (Left) and DMT242SC (Right)
26
DSC74 Sampling Cell with Quick Connector and Leak Screw
27
Figure 14 DSC74 Sampling Cell with Accessories
27
DSC74B Two Pressure Sampling Cell
28
Figure 15 DSC74B
28
DSC74C Two-Pressure Sampling Cell with Coil
29
Figure 16 Removing Leak Screw
29
Figure 17 Default Assembly of DSC74C
30
Figure 18 Alternative Assembly of DSC74C (for Tight Spaces)
31
NW40 Mounting Flange
32
Figure 19 NW40 Mounting Flange
32
Figure 20 NW40 Mounting Flange Dimensions
32
Chapter 5 Serial Line Operation
33
Serial Communication
33
Connecting to the Serial Interface
33
Installing the Driver for the USB Cable
33
Terminal Application Settings
34
Table 6 DMT152 Default Serial Interface Setting
34
Figure 21 Putty Terminal Application
35
List of Serial Commands
36
Table 7 DMT152 Serial Commands
36
Device Information and Status
37
Show Device Information
37
Show Transmitter Status
38
Show Firmware Version
38
Configuring Analog Outputs
39
Limit Alarm
40
Purge Status Alarm
41
Malfunction Alarm
42
Select Analog Output Quantity and Scaling
42
Configuring Serial Line Operation
43
Set Serial Line Settings
43
Set Serial Line Response Time
43
Set Transmitter Address
44
Format the Measurement Output
44
Table 8 FORM Command Quantities
44
Select Unit
45
Table 9 FORM Command Modifiers
45
Set Serial Interface Mode
46
Configuring Measurement Parameters
47
Enable or Disable Sensor Purge
47
Set Pressure Value for Ppm Calculation
47
Table 10 Pressure Conversion Coefficients
48
Set Molar Mass for Ppmw Calculation
49
Serial Line Output Commands
50
Start Measurement Output
50
Stop Measurement Output
50
Set Output Interval
50
Output a Reading Once
51
Troubleshooting and Maintenance Commands
51
Display Currently Active Errors
51
Test Analog Outputs
52
Calibrate Analog Output
53
Extend Analog Output Range
53
Other Commands
54
Opening the Transmitter in POLL Mode
54
Closing the Connection to a Transmitter in POLL Mode
54
Display Command List
54
Set Time
54
Reset Transmitter
55
Set LED Voltage
55
Restore Factory Settings
55
Chapter 6 Maintenance
56
Cleaning the Transmitter
56
Changing the Filter
56
Calibration and Adjustment
57
Figure 22 Filter Structure
57
Field Check Using DM70
58
Figure 23 Supply Voltage too Low for Ma Output Error
58
Chapter 7 Troubleshooting
60
Typical Problems
60
Unknown Serial Settings
61
Error State
61
Error Codes
62
Table 11 Error Codes
62
Technical Support
63
Chapter 8 Technical Data
64
Measured Variables
64
Figure 24 Accuracy over Temperature Range
64
Operating Environment
65
Outputs
65
General
65
Output Cable Specifications
66
Spare Parts and Accessories
67
Dimensions in MM (Inches)
68
Figure 25 DMT152 Dimensions
68
4
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Vaisala DMT152 Specifications
General
Brand
Vaisala
Model
DMT152
Category
Transmitter
Language
English
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