GE Sensing dew.IQ Trace Operating Manual
dew.IQ
Moisture Analyzer
User’s Manual
Moisture
bhge.com
910-295 Rev. C
October 2017
dew.IQ
Moisture Analyzer
User’s Manual
910-295 Rev. C
October 2017
bhge.com
© 2017 Baker Hughes, a GE company – All rights reserved.
Baker Hughes reserves the right to make changes in specifications and features shown
herein, or discontinue the product described at any time without notice or obligation.
Contact your BHGE representative for the most current information. The Baker Hughes
logo is a trade mark of Baker Hughes, a GE company. The GE Monogram is a trademark of
the General Electric Company.
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ii dew.IQ User’s Manual
Contents
Chapter 1. Features and Capabilities
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2 Electronics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.3 Probes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Chapter 2. Installation
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.2 Selecting the Analog Recorder Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.3 Mounting the Electronics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.3.1 Panel Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.3.2 Rack Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3.3 Bench Mount. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.3.4 Wall Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4 Mounting the Sample System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.5 Installing the Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.6 Wiring the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.6.1 Connecting an M Series Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.6.2 Connecting an IQ.probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.6.3 Connecting the Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.6.4 Connecting the Alarm Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.6.5 Connecting the Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Chapter 3. Initial Setup & Operation
3.1 Using the dew.IQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.1.1 Starting Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.1.2 Accessing the Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.1.3 Entering Numeric Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.2 Setting Up the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.2.1 Selecting the Primary Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.2.2 Setting the Decimal Places . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.2.3 Adjusting the Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.3 Setting Up the Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.3.1 Entering the Output Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.3.2 Selecting the Output Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.3.3 Selecting an Output Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.3.4 Changing the Output Span . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.3.5 Changing the Output Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.3.6 Testing the Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
dew.IQ User’s Manual iii
Contents
3.3.7 Trimming the Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
3.4 Setting Up the Measurement Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
3.4.1 Selecting an Alarm Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
3.4.2 Selecting the Alarm Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
3.4.3 Selecting the Alarm Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
3.4.4 Selecting an Alarm Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
3.4.5 How the Alarm Types Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
3.4.6 Setting the Alarm Span . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.4.7 Setting the Alarm Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.4.8 Testing the Alarm Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
3.5 Viewing System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
3.5.1 Checking the ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
3.5.2 Checking the Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
3.5.3 Checking the Software Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
3.5.4 Checking the Probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
3.5.5 Checking the Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
3.6 Locking the Main Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Chapter 4. Data Logging
4.1 Checking the Data Log Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.2 The Log Settings Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.3 Setting the Log Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.4 Setting the Log Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4.5 Setting a Log Field Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4.6 Setting the Log Status Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4.7 Managing Log Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.7.1 Creating a New Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.7.2 Pausing or Closing a Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.7.3 Resuming a Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.7.4 Viewing the Log Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.7.5 Deleting Log Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
4.8 Ejecting the MicroSD Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
4.9 Viewing Data Log Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Chapter 5. Programming the Settings Menu
5.1 Entering Your Passcode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
5.2 Setting the Fault Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
5.2.1 Setting the Fault Alarm Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
iv dew.IQ User’s Manual
Contents
5.2.2 Setting the Fault Alarm Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
5.2.3 Setting the Fault Alarm Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
5.2.4 Testing the Fault Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
5.3 Setting AutoCal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
5.4 Entering Calibration Data for an M Series Probe . . . . . . . . . . . . . . . . . . . . . . . 72
5.4.1 Selecting the Number of Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
5.4.2 Selecting the Calibration Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
5.4.3 Entering the MH Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
5.4.4 Entering the Dew Point Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
5.5 Viewing Calibration Data for an IQ.probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
5.5.1 Selecting the Calibration Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
5.5.2 Reading the FH Value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
5.5.3 Reading the DP Value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
5.6 Reading and Setting the Calibration References . . . . . . . . . . . . . . . . . . . . . . . 77
5.6.1 Setting the Calibration High Reference . . . . . . . . . . . . . . . . . . . . . . . 78
5.6.2 Setting the Calibration Low Reference . . . . . . . . . . . . . . . . . . . . . . . . 78
5.7 Entering an M Series Probe Serial Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
5.8 Setting the Volume Mixing Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
5.8.1 Setting the Pressure Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
5.8.2 Setting the Pressure Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5.8.3 Setting the k x PPMv Multiplier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5.9 Setting the System Clock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
5.9.1 Setting the Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
5.9.2 Setting the Minutes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
5.9.3 Setting the Month . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
5.9.4 Setting the Date. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5.9.5 Setting the Year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5.10 Selecting the Probe Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5.11 Setting a Constant DP °C Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Chapter 6. Service and Maintenance
6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
6.2 The Service Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
6.3 Troubleshooting Common Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
6.4 Replacing/Recalibrating Moisture Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
6.5 Cleaning the dew.IQ Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
dew.IQ User’s Manual v
Contents
Chapter 7. Specifications
7.1 Electronics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
7.2 Moisture Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Appendix A. Outline and Installation Drawings . . . . . . . . . . . . . . . . . . . . . . . . 95
Appendix B. Menu Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Appendix C. Reading the MicroSD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
C.1 Removing the MicroSD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
C.2 Connecting the MicroSD Card to a PC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
C.3 Accessing the Log Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
C.4 Setting Up a Log File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Default Factory Passcode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
vi dew.IQ User’s Manual
Chapter 1. Features and Capabilities
Chapter 1. Features and Capabilities
1.1 Introduction
The dew.IQ is a single-channel hygrometer that measures moisture
content in gases. It is suitable for a wide range of process conditions in
applications that require real-time moisture measurement.
The dew.IQ accepts any calibration range provided with BHGE probes
(see Chapter 7, Specifications for more information). It comes equipped
with two high/low alarm relays, one fault alarm relay, and a single
analog output. It also has on-board data logging capability using a
micro SD card.
1.2 Electronics
You can program the meter using the keys on the front panel (see
Figure 1 below). The dew.IQ universal power supply accepts voltages
from 100 to 240 VAC, or you may order the 24 VDC configuration.
Figure 1: Front Panel
dew.IQ User’s Manual 1
Chapter 1. Features and Capabilities
1.3 Probes
The moisture probe is the part of the system that comes in direct
contact with the process. The dew.IQ uses any BHGE M Series probe
(see Figure 2 below) or an IQ.probe (see Figure 3 below) to measure
dew point temperature in °C or °F. The sensor assembly is secured to
the probe mount and is protected with a sintered stainless steel
shield (see Figure 2 below).
Note: Other types of shields are available upon request.
Shield
Figure 2: M Series Probe
Sensor
Figure 3: IQ.probe
2 dew.IQ User’s Manual
Chapter 2. Installation
2.1 Introduction
Installing the dew.IQ includes the following steps:
• Selecting the analog recorder output (see page 4)
• Mounting the electronics (see page 8)
• Mounting the sample system (see page 15)
• Installing the probe (page 16)
• Wiring the system (see page 18)
WARNING! To ensure safe operation, the dew.IQ must be
installed and operated as described in this manual. Also,
be sure to follow all applicable local safety codes and
regulations for installing electrical equipment.
Chapter 2. Installation
dew.IQ User’s Manual 3
Chapter 2. Installation
2.2 Selecting the Analog Recorder Output
Note: By default, the analog recorder output is set to the current
output.
Note: Customers must provide their own cable for connecting the
analog recorder output. Cables ranging from 16 to 26 AWG are
acceptable.
The dew.IQ has one isolated analog recorder output. The analog
recorder output provides either a current or voltage signal, as
determined by the position of switch S1 on the main PC board.
Complete the following steps to check or reset switch S1 (see Figure 8
on page 7):
WARNING! Never connect line voltage or any other
power input to the analog recorder output terminals.
1. Make sure the
dew.IQ is turned OFF and unplugged. For wall
mount and bench mount units, remove the dew.IQ from its
enclosure before proceeding (see the appropriate figures in
Appendix A).
WARNING! The dew.IQ must be isolated or disconnected
from all voltage sources before changing the recorder
output.
4 dew.IQ User’s Manual
Chapter 2. Installation
2.2 Selecting the Analog Recorder Output (cont.)
2. Remove the screw at the top of the back panel (see Figure 4
below).
Screw
Figure 4: Back Panel (AC cord version shown)
3. Lift the back edge of the top cover (see Figure 5 below).
Figure 5: Lifting the Back Edge of the Cover
dew.IQ User’s Manual 5
Chapter 2. Installation
2.2 Selecting the Analog Recorder Output (cont.)
4. Slide the cover toward the back of the dew.IQ (see Figure 6
below).
Figure 6: Sliding the Cover to the Rear
5. Lift the cover away from the enclosure (see Figure 7 below).
Figure 7: Removing the Cover
6 dew.IQ User’s Manual
Chapter 2. Installation
dew.IQ User’s Manual 7
Chapter 2. Installation
2.2 Selecting the Analog Recorder Output (cont.)
6. Locate switch S1 (see the highlighted area in Figure 8 below).
CAUTION! Use proper ESD grounding prior to setting the
switch.
7. Set switch S1 to the desired position: V for voltage or I for current.
Figure 8: Switch S1 on the Main PC Board
8. After setting the switch, reinstall the cover and secure it with the
rear enclosure screw. For wall mount and bench mount units,
reinstall the dew.IQ in its enclosure (see the appropriate figures in
Appendix A).
8 dew.IQ User’s Manual
Chapter 2. Installation
2.3 Mounting the Electronics
The dew.IQ is available in the following configurations:
• “Panel Mount” on page 8
• “Rack Mount” on page 12
• “Bench Mount” on page 13
• “Wall Mount” on page 14
Proceed to the appropriate section for mounting your
electronics.
dew.IQ
2.3.1 Panel Mount
The panel mount unit can be installed in a panel up to 0.25 in. (6 mm)
thick. See Figure 43 on page 100, for the required panel cutout
dimensions.
IMPORTANT: For Type 4X and IP66 installation, the dew.IQ must be
mounted in a rigid, flat panel using the panel gasket and
both mounting brackets provided.
dew.IQ User’s Manual 9
Chapter 2. Installation
2.3.1 Panel Mount (cont.)
To mount the dew.IQ in a panel with a 3.69” (94 mm) x 1.81” (46 mm)
opening, refer to the figures and complete the following steps:
1. Remove the side panel mount label prior to installation.
Figure 9: Removing Side Panel Mount Label
2. Slide the gasket along the
dew.IQ and place it around the back of
the display (see Figure 10 below).
Gasket
Figure 10: Installing the Gasket Behind the Display
10 dew.IQ User’s Manual
Chapter 2. Installation
2.3.1 Panel Mount (cont.)
3. Slide the dew.IQ into the panel cutout (see Figure 11 below).
Figure 11: Sliding the dew.IQ into the Panel Cutout
4. Behind the panel, insert the mounting brackets into the side holes
provided (see Figure 12 below).
Figure 12: Installing the Mounting Brackets
dew.IQ User’s Manual 11
Chapter 2. Installation
2.3.1 Panel Mount (cont.)
5. Hold the chassis and lock each mounting bracket in place by
sliding it toward the rear of the dew.IQ (see Figure 13 below).
Figure 13: Locking the Mounting Brackets in Place
6. Use a screwdriver to extend the bracket screws to the back of the
panel and secure the
below).
dew.IQ in the panel cutout (see Figure 14
Figure 14: Securing the dew.IQ to the Panel
12 dew.IQ User’s Manual
Chapter 2. Installation
2.3.1 Panel Mount (cont.)
7. Using a feeler gauge behind the display, check the gasket
compression, and tighten the bracket screws until the gap is 0.028”
(0.71 mm) ± 0.002” (0.05 mm), as shown in see Figure 15 below.
Figure 15: Checking the Gasket Compression
2.3.2 Rack Mount
The rack mount dew.IQ is a half-rack sized component designed for
mounting in a standard instrument rack. See Figure 42 on page 99, for
the dimensions.
dew.IQ User’s Manual 13
Chapter 2. Installation
2.3.3 Bench Mount
The bench mount dew.IQ can be placed on any clean, flat, horizontal
surface that provides adequate clearance around the unit for proper
operation and configuration. See Figure 44 on page 101, for the
dimensions.
14 dew.IQ User’s Manual
Chapter 2. Installation
2.3.4 Wall Mount
The wall mount dew.IQ consists of a panel mount unit pre-installed in
a standard Type 4X, IP66 wall mount enclosure. See Figure 39 on
page 96, Figure 40 on page 97 and Figure 41 on page 98 for dimensions
and installation notes.
The enclosure should be mounted on a vertical surface that provides
adequate clearance for proper operation and configuration by
completing the following steps:
1. Loosen the four (4) screws on the front of the enclosure, pull the
door straight forward until it stops and then swing the door open
(it is hinged on the left side).
2. Install four (4) self-drilling wall anchors in your mounting location
per the hole pattern shown in Figure 39 on page 96.
3. Mount the enclosure on the wall using four (4) #8 x 1-1/2” machine
screws in the four mounting holes provided.
4. Prior to operation, the door must be closed and secured with the
four screws located at the corners.
dew.IQ User’s Manual 15
Chapter 2. Installation
2.4 Mounting the Sample System
The sample system is normally fastened to a flat metal plate that has
four mounting holes. Upon request, BHGE can also provide the sample
system in an enclosure. A typical sample system is shown in
Figure 16 below.
PRESSURE
SAMPLE INLET
SAMPLE
CELL
ASSEMBLY
SAMPLE CELL
PRESSURE
GAUGE
ASSEMBLY
REGULATOR
COOLING
COIL
SAMPLE OUTLET
NEEDLE
VALV E
NEEDLE
VALV E
NEEDLE
VALV E
COALESCER
DRAIN
Figure 16: Typical Sample System
16 dew.IQ User’s Manual
Chapter 2. Installation
2.4 Mounting the Sample System (cont.)
Complete the following steps to mount the sample system:
1. Fasten the sample system plate or enclosure to a vertical wall or
panel with a bolt in each of the four corners.
2. Connect the sample system inlet to the process and the outlet to
the return, using appropriate stainless steel fittings and tubing.
CAUTION! Do not start the process flow through the
system until the probe has been properly installed (see
the following section).
2.5 Installing the Probe
The following probes are available for use with the dew.IQ:
• M Series probe (see Figure 2 on page 2)
• IQ.probe (see Figure 3 on page 2)
BHGE probes are usually installed in a sample system to protect the
probe from any damaging elements in the process. The probe is
mounted in a cylindrical container called the
included as part of your sample system.
Standard M Series probes and the IQ.probe are mounted in the sample
system or the process line with 3/4-16 straight threads that are sealed
with an o-ring. Other fittings are available for special applications.
CAUTION! If the probe is to be mounted directly in the
process line, without a sample system, consult BHGE for
proper installation instructions and precautions.
dew.IQ User’s Manual 17
sample cell, which is
Chapter 2. Installation
2.5 Installing the Probe (cont.)
Refer to Figure 17 below, and complete these steps to install the
probe in the sample cell:
1. Insert the probe into the sample cell and thread the probe into the
sample cell fitting. Make sure you do not cross the threads.
2. Tighten the probe securely.
3. Identify the sample cell inlet port as the connection that is
perpendicular to the installed probe.
CAUTION! For maximum protection of the aluminum
oxide sensor, the probe shield should always be left in
place.
Probe
Inlet
Sample Cell
Outlet
Figure 17: Probe/Sample Cell Assembly
18 dew.IQ User’s Manual
Chapter 2. Installation
2.6 Wiring the System
Wiring the dew.IQ system includes the following steps:
• Connecting the probe (see page 21 or page 24)
• Connecting the analog recorder output (see page 27)
• Connecting the alarms (see page 27)
• Connecting the input power (see page 30)
WARNING! To ensure safe operation, the dew.IQ must be
installed and operated as described in this manual. Also,
be sure to follow all applicable local safety codes and
regulations for installing electrical equipment.
WARNING! For wall mount units, refer to Figure 41 on
page 98 for the service loop required on all cable
connections.
Refer to Figure 18 or Figure 19 on page 19 or Figure 20 on page 20 and
Figure 45 on page 102 when making the electrical connections.
CAUTION! This symbol in the three following figures is a
reminder that the dew.IQ components can be damaged if
electrical connections are not made correctly.
dew.IQ User’s Manual 19
Chapter 2. Installation
2.6 Wiring the System (cont.)
1 2 3 4 5 6 7 8 9
FAULT ALARM A ALARM B
10 11 12 13 14 15 16 17 18
IQ.probe
COM
RTN
-
COM
+
15V
NC NO C NCNO C NC NO C
RCRD PROBE
+
-
+
SHD
RED
GRN
RELAY RATING:
30 VDC, 3 A
250 VAC, 3 A
100-240 VAC
50-60 Hz, 5W
MEMORY CARD
Figure 18: Electrical Connections (AC Power Cord Units)
Note: Figure 18 above, Figure 19 below and Figure 20 on page 20
show the three different power connections available for the
dew.IQ. Be sure to use the figure that corresponds to your unit.
All other electrical connections are identical for the three
versions.
1 2 3 4 5 6 7 8 9
FAULT ALARM A ALARM B
10 11 12 13 14 15 16 17 18
NC NO C NCNO C NC NO C
RELAY RATING:
30 VDC, 3 A
250 VAC, 3 A
24 VDC, 5W
IQ.probe
RCRD PROBE
COM
COM
+
RTN
+
-
15V
RED
SHD
-
+
GRN
MEMORY CARD
Figure 19: Electrical Connections (DC Power Terminals Units)
20 dew.IQ User’s Manual
2.6 Wiring the System (cont.)
CAUTION! This symbol in Figure 20 below indicates the
presence of electrical shock hazards. Always
de-energize the meter prior to connecting or
disconnecting the AC power wires to avoid electrical
shock.
Chapter 2. Installation
1 2 3 4 5 6 7 8 9
FAULT ALARM A ALARM B
NO C NC NO C
10 11 12 13 14 15 16 17 18
IQ.probe
COM
RTN
-
COM
+
NC NO C NC
RCRD PROBE
+
-
15V
SHD
+
RED
GRN
RELAY RATING:
30 VDC, 3 A
250 VAC, 3 A
100-240 VAC
50-60 Hz, 5W
MEMORY CARD
L1 L2/N G
Figure 20: Electrical Connections (AC Power Terminal Units)
dew.IQ User’s Manual 21
Chapter 2. Installation
2.6.1 Connecting an M Series Probe
The M Series probe must be connected to the dew.IQ with a continuous
run of BHGE two-wire shielded cable. When connecting the probe,
protect the cable from excessive strain (bending, pulling, etc.) and
avoid subjecting the cable to temperatures above 65°C (149°F) or below
–50°C (–58°F).
Note: Standard factory-assembled cables (see Figure 21 below) are
available from BHGE in lengths up to 600 m (2000 ft).
Figure 21: Two-Wire, Shielded, M Series Probe Cable
To connect the probe cable, refer to the accompanying photographs
and complete the following steps:
1. Insert the end of the probe cable with the bayonet-type connector
onto the probe and twist the shell clockwise until it snaps into a
locked position (approximately 1/8 turn).
IMPORTANT: Ensure that the power is OFF before proceeding.
22 dew.IQ User’s Manual
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