GE Sensing dew.IQ Trace Operating Manual

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Page 1

dew.IQ

Moisture Analyzer

User’s Manual

Moisture

bhge.com

910-295 Rev. C

October 2017

Page 2

Page 3

dew.IQ

Moisture Analyzer

User’s Manual

910-295 Rev. C October 2017

bhge.com

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

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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

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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

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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

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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

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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

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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

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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

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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.

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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

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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

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Chapter 2. Installation

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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).

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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.

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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

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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

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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

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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.

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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

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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

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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

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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

Page 26

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

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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

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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

RTN

15V

RED

SHD

GRN

MEMORY CARD

Figure 19: Electrical Connections (DC Power Terminals Units)

20 dew.IQ User’s Manual

Page 29

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

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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.

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Chapter 2. Installation

2.6.1 Connecting an M Series Probe (cont.)

IMPORTANT: To maintain good contact at the terminal block and to

avoid damaging the pins on the wiring connector, pull the connector straight off (not at an angle) the terminal block, and make the cable connections while the connector is off the unit. After the wiring is complete, push the connector straight onto the terminal block (not at an angle).

2. Remove the connector from the lower terminal block on the rear of the dew.IQ (see Figure 22 below).

Figure 22: Bottom Connector Removed

3. Refer to Figure 23 below and Figure 24 on page 23 to connect the

end of the probe cable with the three leads to pins 16, 17 and 18 on the lower terminal block.

#17 Red

#16 Shield

#18 Green

Figure 23: M Series Probe Cable Connections

dew.IQ User’s Manual 23

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Chapter 2. Installation

2.6.1 Connecting an M Series Probe (cont.)

Figure 24: Making Probe Cable Connections to the Connector

4. Reinsert the connector into the lower terminal block on the rear of

the dew.IQ (see Figure 25 below).

Figure 25: Reinserting the Connector into the Terminal Block

24 dew.IQ User’s Manual

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Chapter 2. Installation

2.6.2 Connecting an IQ.probe

Complete the following steps to wire an IQ.probe to the dew.IQ:

1. Insert the end of probe cable (see Figure 26 below) with the connector onto the probe and twist the connector head clockwise until it is secure.

IMPORTANT: Ensure that the power is OFF before proceeding.

Figure 26: Four-Wire, IQ.probe Cable

dew.IQ User’s Manual 25

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Chapter 2. Installation

2.6.2 Connecting an IQ.probe (cont.)

IMPORTANT: To maintain good contact at the terminal block and to

2. Remove the connector from the lower terminal block on the rear of the dew.IQ (see Figure 27 below).

Figure 27: Bottom Connector Removed

3. Refer to Table 1 below and Figure 28 on page 26 to connect the

end of the probe cable with the four leads to pins 10, 11, 12 and 13 on the lower terminal block.

Table 1: IQ.probe Wiring Connections

Wire Color Pin Number Function

Brown 10 RTN

Black 11 COM –

White 12 COM +

Blue 13 +15V

Bare Wire* no connection Shield

*The cable shield lead requires no connection to the dew.IQ and

should be wrapped around the base of the other four leads.

26 dew.IQ User’s Manual

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Chapter 2. Installation

2.6.2 Connecting an IQ.probe (cont.)

Figure 28: Wiring the Cable to the Connector

4. Reinsert the connector into the lower terminal block on the rear of

the dew.IQ (see Figure 29 below).

Figure 29: Reinserting the Connector into the Terminal Block

Note: If there is a No Link error for the IQ.probe, check the wiring

connections and make sure there is no short between +15V and RTN.

dew.IQ User’s Manual 27

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Chapter 2. Installation

2.6.3 Connecting the Analog Output

IMPORTANT: Ensure that the power is OFF before proceeding.

Refer to Table 2 below to connect your analog recorder to pins 14 and 15 on the lower terminal block on the back of the dew.IQ (see Figure 22 on page 22 or Figure 27 on page 25).

IMPORTANT: To maintain good contact at the terminal block and to

Table 2: Pin Assignments for Analog Output

Wire Color Pin Number Function

Black 14 Signal-

Red 15 Signal+

2.6.4 Connecting the Alarm Relays

Note: The cable for connecting the alarm relays is supplied by the

customer. Acceptable cables range from 16 to 26AWG.

The dew.IQ has one fault alarm relay and two high/low alarm relays. Each alarm relay is a single-pole, double-throw contact set with the following contacts (see Table 3 below for the connector pin assignments):

• Normally Open (NO)

• Common (C)

• Normally Closed (NC)

Table 3: Pin Assignments for Alarm Relay Contacts

Contact Fault Alarm Alarm A Alarm B

Normally Open 1 4 7

Common 2 5 8

Normally Closed 3 6 9

28 dew.IQ User’s Manual

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Chapter 2. Installation

2.6.4.1 Connecting the High/Low Alarms (A and B)

IMPORTANT: Ensure that the power is OFF before proceeding.

Each of these alarms can be set to trip on either a high or low condition. For a high alarm, the alarm will trip if the input exceeds the setpoint. For a low alarm, the alarm will trip if the input drops below the setpoint.

To wire the high/low alarm relays, complete the following steps:

1. Remove the connector from the upper terminal block on the rear of the dew.IQ (see Figure 30 below).

IMPORTANT: To maintain good contact at the terminal block and to

Figure 30: Removing the Upper Connector

2. Make the Alarm A and Alarm B connections to upper terminal

block connector, as indicated in Table 3 on page 27.

3. Reinsert the connector into the upper terminal block on the rear of

dew.IQ.

the

dew.IQ User’s Manual 29

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Chapter 2. Installation

2.6.4.2 Connecting the Fault Alarm

If enabled, the dew.IQ fault alarm trips when one or more of the following faults occurs: power failure, range error (configurable) or watchdog function system reset

Note: The watchdog function is a supervisory circuit that

automatically resets the unit whenever a system error occurs.

The fault alarm has two possible operating modes:

• Fail-Safe Mode: Using pins 2 and 3 provides a “normally closed”

contact. When the fault alarm relay is energized to open the contact between pins 2 and 3. When a fault occurs, the fault alarm relay is de-energized to close the contact between pins 2 and 3 and trigger the alarm.

dew.IQ is operating in a non-fault state, the

• Non-Fail-Safe Mode: Using pins 1 and 2 provides a “normally

open” contact. When the

state, the fault alarm relay is de-energized with an open the contact between pins 1 and 2. When a fault occurs, the fault alarm relay is energized to close the contact between pins 1 and 2 and trigger the alarm.

dew.IQ is operating in a non-fault

IMPORTANT: Ensure that the power is off before proceeding.

To wire the fault alarm relay, complete the following steps:

1. Remove the connector from the upper terminal block on the rear of the

dew.IQ (see Figure 30 on page 28).

IMPORTANT: To maintain good contact at the terminal block and to

2. Make the fault alarm connections to upper terminal block connector, as indicated in Table 3 on page 27.

3. Reinsert the connector into the upper terminal block on the rear of the

dew.IQ.

30 dew.IQ User’s Manual

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Chapter 2. Installation

2.6.5 Connecting the Input Power

There are three input power configurations available for the dew.IQ:

• AC power cord (not used for wall mount units)

• DC power terminals (available for all configurations)

• AC power terminals (available for all configurations)

Proceed to the appropriate section to connect your input power.

2.6.5.1 Connecting the AC Power Cord

To install the AC power cord included with the dew.IQ, simply plug the female connector end of the cable into the male connector on the rear panel of the dew.IQ (see Figure 31 below and Figure 32 on page 31).

Note: This configuration is not used for AC powered wall mount units.

Figure 31: Inserting the AC Power Cable

dew.IQ User’s Manual 31

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Chapter 2. Installation

2.6.5.1 Connecting the AC Power Cord (cont.)

Figure 32: The AC Power Cable Installed

2.6.5.2 Connecting the DC Power Terminals

The DC power cable (with 14 to 26 AWG conductors) is supplied by the customer. To connect the power cable to the dew.IQ input power terminals (see Figure 19 on page 19) complete the following steps:

1. Remove the input power connector from the rear panel of the

dew.IQ (see Figure 33 below).

Figure 33: Removing the DC Power Connector

32 dew.IQ User’s Manual

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Chapter 2. Installation

2.6.5.2 Connecting the DC Power Terminals (cont.)

2. Strip the three power cable conductors by about 3/8” (10 mm).

3. Insert each wire into the appropriate connector pin (see Table 4

below) and tighten each screw to secure the wires in place.

Table 4: Pin Assignments for DC Power Connector

Wire Color Pin Function

Red + V+

Black - V-

Green GND Symbol Ground

IMPORTANT: Be sure that the dew.IQ chassis ground connection is

properly grounded.

4. Reinsert the power connector into the rear panel of the dew.IQ as shown in Figure 34 below.

Figure 34: Reinserting the DC Power Connector

dew.IQ User’s Manual 33

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Chapter 2. Installation

2.6.5.3 Connecting the AC Power Terminals

IMPORTANT: Unlike the DC power connector, which has screw

terminals, the AC power connector has spring finger terminals. It is essential that this connector be removed from the dew.IQ for wiring to avoid putting stress on the PCB, which may cause damage to the board.

The AC power cable (with 14 to 26 AWG conductors) is supplied by the customer. To connect the power cable to the dew.IQ input power terminals, see Figure 20 on page 20 and complete the following steps:

1. Remove the input power connector from the rear panel of the

dew.IQ, as shown in Figure 35 below.

Figure 35: Removing the AC Power Connector

34 dew.IQ User’s Manual

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Chapter 2. Installation

2.6.5.3 Connecting the AC Power Terminals (cont.)

2. Strip the three power cable conductors by about 3/8” (10 mm).

3. Using a small screwdriver to assist in opening each spring finger

terminal, insert each wire into the appropriate connector pin (see Table 5 below).

Table 5: Pin Assignments for AC Power Connector

Wire Color Pin Function

Black L1 Line White L2/N Line 2 (230 VAC) or Neutral Green G Ground

4. Reinsert the power connector into the rear panel of the

dew.IQ.

dew.IQ User’s Manual 35

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Chapter 2. Installation

36 dew.IQ User’s Manual

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Chapter 3. Initial Setup & Operation

3.1 Using the dew.IQ

All programming of the dew.IQ is done via the front panel keypad and display, as illustrated below.

Right ArrowUp ArrowLeft ArrowDisplay

EnterDown ArrowCancel

The front panel components perform the following functions:

• Display - The programming menus and options are shown on

the LCD display screen.

• Enter - In most instances, press this key to save an entry

and/or to advance to the next screen.

• Cancel - In most instances, press this key to reject an entry

and/or to return to the previous screen.

• Lef t/Right Arrow Keys - Use these keys to move the cursor along

a row one character at a time in the direction indicated.

• Up/Down Arrow Keys - Use these keys to move the cursor

between rows one row at a time in the direction indicated.

Note: In those instances when the keys behave in a manner unique to a

specific screen, the differences will be described in that section.

dew.IQ User’s Manual 35

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Chapter 3. Initial Setup & Operation

3.1.1 Starting Up

After installation, the dew.IQ moisture analyzer can be configured to meet the user’s requirements. While programming the instrument, refer to one of the following menu maps:

• Figure 46 on page 104 when using an M Series probe (this probe

is used for the programming examples in this chapter.)

• Figure 47 on page 105 when using an IQ.probe

Upon the application of power, the dew.IQ performs some self checks and then displays a measurement mode screen like the one below.

Status OK

–4.8°C

10:21

After startup, the unlocked. To unlock the menu, press:

Cancel, Enter, Cancel.

Main Menu needs to be

3.1.2 Accessing the Menus

After unlocking the menu (as confirmed by the absence of the padlock icon in the lower right corner), press Cancel to display the Main

Menu (see Figure 36 below). Use the arrow keys to select the desired

menu option and press Enter to access the highlighted option. Pressing Cancel from the Main Menu returns the screen to the Measurement Display.

Note: Menu items followed by an ellipsis (i.e., a series of three dots)

have submenus, while those without it take immediate action.

Main Menu

Display...

Output... Alarm... Logs...

Settings... Service... About... LOCK

Figure 36: Main Menu

36 dew.IQ User’s Manual

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Chapter 3. Initial Setup & Operation

3.1.3 Entering Numeric Values

The dew.IQ has no numeric keypad. Numeric values are entered using a “combination lock” entry (see Figure 37 below as an example):

1. Use the left and right arrow keys to select the digit to change. The digit selected will be indicated with an .

2. Use the up and down arrow keys to increment or decrement the selected digit.

Note: If incrementing or decrementing a digit would cause the numeric

value to leave its allowable range (maximum or minimum value), the digit will not change.

3. After you have completed your numeric entry, press Enter save the new value and return to the previous screen, or press

Cancel

to leave the original value intact and return to the

previous screen.

Set Output Span

Max:

+60.0

+060.0 DP °C

Min:

–110.0

/=Save =Cancel

Figure 37: Numeric Entry

dew.IQ User’s Manual 37

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Chapter 3. Initial Setup & Operation

3.2 Setting Up the Display

Main Menu

Display...

Output... Alarm... Logs...

Settings... Service... About... LOCK

When the screen is unlocked, press the

Cancel with several options. To set up the display,

select

Display... and press Enter . The

following screen appears:

3.2.1 Selecting the Primary Units

Display Menu

Unit Select

Decimal Contrast

Select Display Unit:

PPMv

mg/m

g/m

kg/m

°C

°F

PPMvNG

PPBv MMSCFig MMSCFng

Equiv DP Equiv DP

To select the units for the primary display,

select

Unit Select and press Enter . The

following screen appears:

Use the arrow keys to select the desired

units and press Enter returns to the Display Menu.

key and the Main Menu appears

. The screen

Note: If the IQ.probe is being used, FH replaces MH.

38 dew.IQ User’s Manual

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3.2.2 Setting the Decimal Places

Chapter 3. Initial Setup & Operation

Display Menu

Unit Select

Decimal

Contrast

To set the decimal places for unit values, from the Display Menu use the arrow keys

to select

Decimal and press Enter . The

following screen appears:

Note: The decimal places setting determines the number of digits

displayed to the right of the decimal point (“.”) for the value, if possible.

Set DP °C Format:

Max:

1 decimals

Min:

/=Save =Cancel

Use the arrow keys to change the number

of decimal places and press Enter

press Cancel

if no changes are desired.

The screen returns to the Display Menu.

3.2.3 Adjusting the Contrast

Display Menu

Unit Select Decimal

Contrast

To adjust the display contrast, from the

Display Menu use the arrow keys to select

Contrast and press Enter . The following

screen appears:

, or

Adjust Display

/=Save =Cancel

dew.IQ User’s Manual 39

Use the decrease the display contrast. Press Enter

to discard the changes. The screen returns to the Display Menu.

Right/Left arrow keys to increase or

to save the changes, or press Cancel

Page 50

Chapter 3. Initial Setup & Operation

3.3 Setting Up the Analog Output

3.3.1 Entering the Output Menu

Main Menu

Display...

Output...

Alarm... Logs...

Settings... Service... About... LOCK

To set up the output, from the

choose

Output... and press Enter . The

following screen appears:

3.3.2 Selecting the Output Units

Output Menu

Units

Type Upper Lower

Select Output Unit:

DP °C

DP °F

PPMv mg/m

Test Trim...

g/m

kg/m

From the

press Enter appears:

Use the arrow keys to select the desired

units and press Enter returns to the Output Menu.

Main Menu

Output Menu, select Units and

. The following screen

. The screen

Note: If the IQ.probe is being used, FH replaces MH.

40 dew.IQ User’s Manual

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Chapter 3. Initial Setup & Operation

3.3.3 Selecting an Output Type

IMPORTANT: Before changing the analog output type, refer to

“Selecting the Analog Recorder Output” on page 4 to make sure that Switch S1 is set correctly (V for voltage or I for current).

Output Menu

Units

Type

Upper Lower

Output Menu Select Output Type:

Test Trim...

To change the output type, from the Output

Menu select Type and press Enter . A

screen similar to the following appears:

Use the arrow keys to select a new output

type. Press Enter

4-20mA

0-20mA

0-2V

(or Cancel

=Accept

=Cancel

and return to the Output Menu.

3.3.4 Changing the Output Span

Output Menu

Units Type

Upper

Lower

Test Trim...

To adjust the output span, from the

Menu select Upper and press Enter . A

screen similar to the following appears:

to save the selection

to keep the previous value),

Output

Set Output Span

Max:

+60.0

+060.0 DP °C

Min:

/=Save =Cancel

–110.0

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

to save (or Cancel

to keep the previous value), and return

to the Output Menu.

dew.IQ User’s Manual 41

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Chapter 3. Initial Setup & Operation

3.3.5 Changing the Output Zero

Output Menu

Units

Type

Upper

Lower

Set Output Zero

Max:

–110.0 DP °C

Min:

/=Save =Cancel

Test Trim...

+60.0

–110.0

To adjust the output zero, from the Output

Menu select Lower and press Enter . A

screen similar to the following appears:

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value), and return to the Output Menu.

42 dew.IQ User’s Manual

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Chapter 3. Initial Setup & Operation

3.3.6 Testing the Output

To verify proper operation of connected recording or SCADA

equipment, the dew.IQ can output test signals of known value. Based

on the percent of range selected, the Test Menu causes the dew.IQ to

output test signals that can be easily calculated. As examples, the

test signals for three commonly used range percentages are shown in

Table 6 below.

Table 6: Output Test Value Examples

Output Type 0% 50% 100%

0-20mA 0.00 mA 10.00 mA 20.00 mA

4-20mA 4.00 mA 12.00 mA 20.00 mA

0-2V 0.00 V 1.00 V 2.00 V

Output Menu

Units Type Upper

Lower

Output Test Value:

Max:

+050.00 %

Min:

/=Apply =Exit

Test

Trim...

+110.00

–25.00

To test the system output, from the Output

Menu select Test and press Enter . The dew.IQ will check the output settings, and a

screen similar to the following appears:

Use the left and right arrow keys to select each digit to be changed, and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value), and return to the Output Menu.

dew.IQ User’s Manual 43

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Chapter 3. Initial Setup & Operation

3.3.7 Trimming the Output

The Trim Menu enables the operator to compensate for differences in the 0/4-20 mA or 0-2V dew.IQ test outputs and the readings on a connected output device. To trim the analog output:

Output Menu

Units Type

Upper

Output Trim

Reset Trim

Trim Zero Trim Span

Output Trim Reset Out Trim?

YES

=Accept

Output Trim

Reset Trim

Trim Zero

Trim Span

Test

Trim...

=Cancel

Select Trim from the Output Menu and press

Enter

When performing a

dew.IQ requires you to first reset the trim.

. The following screen appears:

Trim operation, the

To reset the trim output, select Reset Trim

and press Enter

. The following screen

appears:

Use the left or right arrow keys to select

YES and press Enter . This cancels any

previous trim values, and returns the

dew.IQ to its factory adjustment. The

display returns to the previous screen.

To trim the zero value, select

press Enter

. A screen similar to the

Trim Zero and

following appears:

This step causes the dew.IQ to output 4.000 mA or 0.4 V on the output being trimmed. The output value should then be read using the connected analog device or a DVM.

44 dew.IQ User’s Manual

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Chapter 3. Initial Setup & Operation

3.3.7 Trimming the Output (cont.)

Enter the value read from the connected equipment as the Zero Trim

value, as follows:

Note: Since you cannot trim 0 mA or 0 V for negative offsets, trim for

the lower end of the scale is always at the 4 mA or 0.4 V output.

Enter Out Reading:

Max:

5.2000

04.0000 mA

Min:

3.0000

/=Save =Cancel

Use the left and right arrow keys to select each digit to be changed, and the up and down arrow keys to increase or decrease

its value. Press Enter

to save (or Cancel

to keep the previous value).

The

Output Trim

Reset Trim

Trim Zero

Trim Span

Output Trim menu returns with Trim

Span highlighted. To change the span

value, press Enter

. A screen similar to

the following appears:

This step causes the dew.IQ to output 20.000 mA or 2 V on the output

being trimmed. The output value should then be read using the

connected analog device or a DVM. Enter the value read from the

connected equipment as the

Enter Out Reading:

Max:

22.2000

20.0000 mA

Min:

10.0000

/=Save =Cancel

Span Trim value, as follows:

Use the left and right arrow keys to select each digit to be changed, and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value).

Trimming is complete. To verify the accuracy, see “Testing the

Output” on page 43.

dew.IQ User’s Manual 45

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Chapter 3. Initial Setup & Operation

3.3.7 Trimming the Output (cont.)

Example:

1. Trim is reset, then Trim Zero is selected. The connected output device reports 3.977 mA.

2. The operator enters “3.977” as the Zero Trim value.

3. Trim Span is selected. The connected output device reports 19.985

mA.

4. The operator enters “19.985” as the Span Trim value.

5. The dew.IQ adjusts the output accordingly to align the output with

the readings by the connected output device or a DVM.

6. Using the Test Menu, the operator verifies that a test value of 0% now reads 4.000 mA at the connected output device, and a test value of 100% now reads 20.000 mA.

3.4 Setting Up the Measurement Alarms

The dew.IQ has with two programmable high/low alarms and one fault alarm relay. Use the instructions in this section to set up these alarms.

3.4.1 Selecting an Alarm Output

Alarm Menu [A]

Select

Status Units Type...

Alarm Menu [A] Select Alarm:

=Accept

46 dew.IQ User’s Manual

Upper Lower Test

=Cancel

To set up the alarms, on the Main Menu

choose

Alarm and press Enter . Then,

from the Alarm Menu choose Select and

press Enter

. A screen similar to the

following appears:

Use the arrow keys to select the output (

B) to be set up and press Enter . The

or display returns to the Alarm Menu.

Page 57

3.4.2 Selecting the Alarm Status

Chapter 3. Initial Setup & Operation

Alarm Menu [A]

Select

Status

Units Type...

Alarm Menu [A] Set Alarm Status:

OFF

=Accept

Upper Lower Test

=Cancel

To select the alarm status, from the Alarm

Menu select Status and press Enter . The

following screen appears:

Use the arrow keys to select

press Enter

Alarm Menu.

3.4.3 Selecting the Alarm Units

Alarm Menu [A]

Select Status

Units

Type...

Upper Lower Test

To select the alarm units, from the

Menu select Units and press Enter . The

following screen appears:

OFF or ON and

. The display returns to the

Alarm

Select Alarm Unit:

DP °C

DP °F

PPMv mg/m

g/m

kg/m

Use the arrow keys to select the desired

alarm units. Press Enter

selection (or Cancel

to save the

to keep the

previous value), and return to the Alarm

Menu.

Note: If the IQ.probe is being used, FH replaces MH.

dew.IQ User’s Manual 47

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Chapter 3. Initial Setup & Operation

3.4.4 Selecting an Alarm Type

Alarm Menu [A]

Select Status Units

Type...

Select Alarm Type:

Setpoint

In Band Out Band

Upper Lower Test

To change the alarm type, from the Alarm

Menu select Type and press Enter . A

screen similar to the following appears:

Use the arrow keys to select an alarm type (see “How the Alarm Types Work” on

page 49). Press Enter

to keep the previous value), and return

to save (or Cancel

to the Alarm Menu.

48 dew.IQ User’s Manual

Page 59

Chapter 3. Initial Setup & Operation

3.4.5 How the Alarm Types Work

The available alarm types (see Figure 38 below) for the dew.IQ are:

• Setpoint: The alarm activates when the selected parameter exceeds the

upper limit. It deactivates when the selected parameter is less than the lower limit.

• Inner Band: The alarm activates when the selected parameter is between

the upper limit and the lower limit. It deactivates when the selected parameter exceeds the upper limit or is less than the lower limit.

• Outer Band: The alarm activates when the selected parameter exceeds

the upper limit or is below the lower limit. It deactivates when the selected parameter is between the upper limit and the lower limit.

Trip

Upper

Setpoint

Reset

Hysteresis

Lower

In Band

Out Band

Trip

Reset

Trip

Reset

Trip

Figure 38: Available Alarm Types

dew.IQ User’s Manual 49

Page 60

Chapter 3. Initial Setup & Operation

3.4.6 Setting the Alarm Span

Alarm Menu [A]

Select Status Units Type...

Upper

Lower Test

To adjust the alarm span, from the Alarm

Menu select Upper and press Enter . A

screen similar to the following appears:

Use the left and right arrow keys to select

Max:

+60.0

+000.0 DP °C

Min:

–110.0

/=Save =Cancel

each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel value), and return to the Alarm Menu.

3.4.7 Setting the Alarm Zero

Alarm Menu [A]

Select Status Units Type...

Upper

Lower

Test

To adjust the alarm zero, from the

Menu select Lower and press Enter . A

screen similar to the following appears:

to save the new

to keep the previous

Alarm

Use the left and right arrow keys to select

Max:

+60.0

+000.0 DP °C

Min:

–110.0

/=Save =Cancel

each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value), and return to the Alarm Menu.

50 dew.IQ User’s Manual

Page 61

3.4.8 Testing the Alarm Relays

Chapter 3. Initial Setup & Operation

Alarm Menu [A]

Select Status Units Type...

Alarm Menu [A] Alarm is TRIPPED

Reset

=Accept

Upper Lower

Test

Trip

=Cancel

To test the alarm relay and devices connected to it, from the Alarm Menu select

Test and press Enter . A screen similar

to the following appears:

Use the left and right arrow keys to select

Reset or Trip and press Enter . If Reset

was selected, the message Alarm is RESET appears. If Trip was selected, the message

Alarm is Tripped appears. Press Cancel to return to the Alarm Menu.

dew.IQ User’s Manual 51

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Chapter 3. Initial Setup & Operation

3.5 Viewing System Information

Main Menu

Display... Output... Alarm... Logs...

Settings... Service...

About...

LOCK

To view the dew.IQ system information, from the Main Menu choose About... and

press Enter

. Proceed to the following

sections.

Note: The information in the following screens are examples only. Your

dew.IQ will display the information for your specific unit.

3.5.1 Checking the ID

About dew.IQ

Status Version Probe

Menu: X GE Sensing dew.IQ

GE Sensing MTS-6

General Electric Co.

Unit SN: 111111

Unit SN: XXXXXX

Probe SN: 90104

Probe SN: XXXXXX

Wiring

To check the identity information of the

dew.IQ, from the About dew.IQ menu select

ID and press Enter . A screen similar to

the following appears:

The information includes serial numbers for the

dew.IQ unit and the attached probe.

To return to the About dew.IQ menu, press

Cancel

52 dew.IQ User’s Manual

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3.5.2 Checking the Status

Chapter 3. Initial Setup & Operation

About dew.IQ

Status

Version Probe

Menu: X Uptime: 0d 00h

GE Sensing MTS-6

SD Card Installed.

Format is FAT16

General Electric Co.

0.27 MB used

Unit SN: XXXXXX

244.68 MB free

Probe SN: XXXXXX

Wiring

To check the status of the MicroSD card, from the

and press Enter

About dew.IQ menu select Status

. A screen similar to the

following appears:

The information includes the format, amount of used space and amount of free space for an installed SD card. To return to

About dew.IQ menu, press Cancel .

the

3.5.3 Checking the Software Version

Note: The information in the following screens is a typical example

only. Your unit always displays your actual information.

About dew.IQ

ID Status

Version

Probe

Wiring

To check the software version of the

dew.IQ, from the About dew.IQ menu select

Version and press Enter . A screen

similar to the following appears:

Menu: X Prog: STD.001.A

GE Sensing MTS-6

Probe SN: XXXXXX

dew.IQ User’s Manual 53

The information includes the program number (i.e., the firmware version). To return to the

Cancel

About dew.IQ menu, press

Page 64

Chapter 3. Initial Setup & Operation

3.5.4 Checking the Probe

Note: The information in the following screens is a typical example

only. Your unit always displays your actual information.

About dew.IQ

ID Status Version

Probe

Menu: X Probe: Standard

GE Sensing MTS-6

Probe SN: XXXXXX

Menu: X Probe:

GE Sensing MTS-6

IQ.probe v. 1.A

S/N: 90104

Probe SN: XXXXXX

Wiring

To check the probe details, from the About

dew.IQ menu select Probe and press

Enter

. A screen similar to one of the

following appears:

For an

M Series probe, this probe

information is shown. To return to the

About dew.IQ menu, press Cancel .

For an IQ.probe, this probe information is shown. To return to the About dew.IQ

menu, press Cancel

54 dew.IQ User’s Manual

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3.5.5 Checking the Wiring

Chapter 3. Initial Setup & Operation

About dew.IQ

ID Status Version Probe

Menu: x

FAULT

ALM A ALM B

–+

Wiring

To view the the About dew.IQ menu select Wiring and

press Enter following appears:

When you are ready to return to the

Main menu, press Cancel twice.

3.6 Locking the Main Menu

Main Menu

Display... Output... Alarm... Logs...

Settings... Service... About...

LOCK

To lock out access to changing menu settings, from the

and press Enter normal measurement mode.

dew.IQ wiring diagram, from

. A screen similar to the

dew.IQ

Main Menu choose LOCK

. The display returns to

Note: To unlock the menu, refer to “Starting Up” on page 36.

dew.IQ User’s Manual 55

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Chapter 3. Initial Setup & Operation

[no content intended for this page]

56 dew.IQ User’s Manual

Page 67

Chapter 4. Data Logging

4.1 Checking the Data Log Status

Chapter 4. Data Logging

Logging Menu

Status

Manage... Settings... Eject Card

To check the data log status, from the

Logging Menu select Status and press Enter

. A screen similar to the following

appears:

The current data log status is displayed.

Data Log RUNNING

File: 01270803 Interval: 60 secs

Size: 23 KB

After about 10 seconds or upon pressing

Cancel

(whichever occurs first), the

screen returns to the Logging Menu.

4.2 The Log Settings Menu

Note: To access the Settings... option in the Logging Menu, the log file

must be stopped (see “Pausing or Closing a Log” on page 62).

4.3 Setting the Log Units

Logging Menu

Status Manage...

Settings...

Eject Card

From the

and press Enter appears:

Logging Menu select Settings...

. The following screen

Set Log Params

Units

Interval FieldSep Flags

dew.IQ User’s Manual 57

To set units to log, from the

menu, select

Units and press Enter . The

following screen appears.:

Set Log Params

Page 68

Chapter 4. Data Logging

4.3 Setting the Log Units (cont.)

Units to Log: 1 2 3 4

Units to Log: Choose Unit Action:

Modify

=Accept

Select Unit #1:

DP °C

DP °F

PPMv mg/m

DP °F

-----

DP °C111

Remove

=Cancel

g/m

kg/m

Use the arrow keys to select the unit to log,

and press Enter

. The following screen

appears:

To change the unit setting, select

and press Enter

. The following screen

appears:

Use the arrow keys to select the first unit

to be logged and press Enter screen returns to the Units to Log menu.

Note: If the IQ.probe is being used, FH replaces MH.

Modify

. The

Units to Log: Choose Unit Action:

Modify

=Accept

Remove

=Cancel

To remove a unit, from the

menu, select

Remove and press Enter .

Select the unit to be removed, press Enter

, to delete the selected unit. Press

Cancel

to return to the Set Log Params

Units to Log

menu.

58 dew.IQ User’s Manual

Page 69

4.4 Setting the Log Interval

Chapter 4. Data Logging

Set Log Params

Units

Interval

FieldSep Flags

Set Log Interval

Max:

86400

00005 seconds

Min:

/=Save =Cancel

To set the log interval, from the Set Log

Params menu, select Interval and press

Enter

. The following screen appears:

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel value), and return to the Set Log Params menu.

4.5 Setting a Log Field Separator

Set Log Params

Units Interval

FieldSep

Flags

To designate a text character to separate the log fields, from the

menu select The following screen appears:

to save the new

to keep the previous

Set Log Params

FieldSep and press Enter .

Set Log Params Field Separator:

Comma

dew.IQ User’s Manual 59

Tab

=Accept

=Cancel

Use the arrow keys to select the text character used to separate the log fields

and press Enter

. The screen returns to

the Set Log Params menu.

Page 70

Chapter 4. Data Logging

4.6 Setting the Log Status Flags

The flags used to identify the log status are as follows:

• Range Err • No Refs

• Over Range • No Data

• Under Range • No Cal

• No Comm • Write Err

• No Link • Read Err

• Bad CRC • ADC Failure

• Bad Message • Cal Error

• Auto Cal •

Set Log Params

Units Interval FieldSep

Flags

Set Log Params Log Status Flags:

Off

=Accept

=Cancel

To turn log status flags on or off, from the

Set Log Params menu select Flags and

press Enter

. The following screen

appears:

Use the arrow keys to select

press Enter

Set Log Params menu. Then, press Cancel

to return to the Logging Menu.

. The screen returns to the

OFF or ON and

60 dew.IQ User’s Manual

Page 71

4.7 Managing Log Files

Chapter 4. Data Logging

Logging Menu

Status

Manage...

Settings... Eject Card

To manage the log file status, from the

Logging Menu select Manage and press

Enter

. If no log has been created, the

following screen appears:

4.7.1 Creating a New Log

Note: The New Log option is available only if there are no logs currently

running or paused. All running or paused logs must be closed before proceeding. Note that a closed log cannot be resumed.

Manage Log Files

New Log

Directory Erase Log

Log Created. New Log:

File: 01281244 was created.

To create a new log, from the

Files menu select New Log and press

Enter

. A screen similar to the following

appears:

A file name, which corresponds to the date and time the log is started, is assigned to the new log by the

dew.IQ. For example, a

log started on May 1 at 4:37 pm will be named 05011637. After about 10 seconds

Manage Log

or upon pressing Cancel

occurs first), the screen returns to the

Manage Log Files menu.

(whichever

Note: When a new log is created, the New Log option in the Manage Log

Files menu changes to a Pause/Close option.

dew.IQ User’s Manual 61

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Chapter 4. Data Logging

4.7.2 Pausing or Closing a Log

Manage Log Files

Pause/Close

Directory Erase Log

After a new log is created, it can be paused or closed at any time. To pause or close a log, from the

Pause/Close and press Enter . The

Manage Log Files menu select

following screen appears:

Manage Log Files File: 06150618

PAUSE

=Accept

=Cancel

The log file name is shown in the header.

Select

Pause or Close and press Enter .

The screen returns to the Manage Log Files menu.

Note: After a log is paused, the Pause/Close option in the Manage Log

Files menu changes to a Resume/Close option.

62 dew.IQ User’s Manual

Page 73

4.7.3 Resuming a Log

Chapter 4. Data Logging

Manage Log Files

Resume/Close

Directory Erase Log

A paused log can be resumed or closed at any time. To resume or close a log, from the Manage Log Files menu select

Resume/Close and press Enter . The

following screen appears:

Manage Log Files File: 06150618

RESUME

=Accept

=Cancel

Select

Files menu.

Resume or Close and press Enter

. The screen returns to the Manage Log

Note: After a log is resumed, the Manage Log Files menu displays the

Pause/Close option again.

Note: If a log is running and the dew.IQ reboots due to a power failure,

the log returns to its status prior to the power failure.

4.7.4 Viewing the Log Directory

Manage Log Files

New Log

4.7.5 Deleting Log Files

Manage Log Files

Pause/Close Directory

Erase Log

File to Erase:

01270801

1 2

01270802 01270803

01281238

1/27/2010 08:01 162 bytes

File to Erase: ERASE Log 01281243?

YES

=Accept

01281240

5 6

01281241

01281242

01281243

=Cancel

To erase existing log files, from the Manage

Log Files menu, select Erase Log and press

Enter

. The File Listing screen appears:

Using the arrow keys, move to the name of the log file to be deleted and press Enter

. The following screen appears:

Using the arrow keys, select YES to erase the log file, or NO to keep the log file. Press

Enter

Listing. If YES was selected, the erased log

and the screen returns to File

file is no longer listed. If NO was selected,

the log file is still listed. Press Cancel

return to the Manage Log Files menu.

64 dew.IQ User’s Manual

Page 75

Chapter 4. Data Logging

4.8 Ejecting the MicroSD Card

Ejecting the MicroSD card requires two steps:

1. Closing all active logs. Complete this step by following the instructions in “Pausing or Closing a Log” on page 62.

2. Ejecting the MicroSD card. Accomplish this as follows:

IMPORTANT: Physically removing the MicroSD card from the dew.IQ

without first closing all active logs and ejecting the card will not damage either the card or the dew.IQ, but it may result in data loss.

Logging Menu

Status Manage... Settings...

Eject Card

Logging Menu Eject SD Card?

EJECT

=Accept

EJECT was selected above, the MicroSD card may now be physically

CANCEL

=Cancel

To eject the SD card, from the

Menu, select Eject Card and press Enter .

The following screen appears:

Use the arrow keys to select

CANCEL and press Enter . The screen

returns to the Logging Menu. Press

Cancel

to return to the Main Menu.

Logging

EJECT or

removed from the dew.IQ. To remove and read the card see Appendix C, “Reading the MicroSD Card” on page 107.

dew.IQ User’s Manual 65

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Chapter 4. Data Logging

4.9 Viewing Data Log Files

Any standard MicroSD card reader may be used to read the dew.IQ MicroSD card on a PC. The log files are stored in text format, and any word processing or spreadsheet program may be used to read the data.

See “Reading the MicroSD Card” on page 107, for instructions and examples on how to work with the dew.IQ log files.

66 dew.IQ User’s Manual

Page 77

Chapter 5. Programming the Settings Menu

5.1 Entering Your Passcode

To access the Settings Menu, proceed as follows:

Main Menu

Display... Output... Alarm... Logs...

Settings Menu is the only user menu that requires a passcode. The

The

Settings...

Service... About... LOCK

To access the

Menu select Settings... and press Enter .

Settings menu, from the Main

passcode is a four-digit number that enables only authorized users to enter setup data. The dew.IQ prompts you to enter your passcode whenever you attempt to program most of the Settings Menu options, as shown below.

IMPORTANT: See page 125 near the end of this manual for your factory

default passcode.

User Passcode:

0000

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease its value. After the passcode has been

/=Save =Cancel

entered, press Enter

to proceed.

Note: The AutoCal, Clock and DpC Offset submenus do not require a

passcode for access.

Note: After entering your passcode, all menus that require the

passcode for access will display a U in the lower right corner to indicate that the Settings menu has been Unlocked.

dew.IQ User’s Manual 67

Page 78

Chapter 5. Programming the Settings Menu

5.2 Setting the Fault Alarm

Note: Access to this menu requires a passcode (see “Entering Your

Passcode” on page 67).

Settings Menu

Fault Alm...

AutoCal... Cal Data... V/V Ratio...

Clock... Probes DpC Offset

To configure the fault alarm, from the

Settings Menu select Fault Alarm and press

Enter

. Then, enter your passcode and

press Enter

5.2.1 Setting the Fault Alarm Status

Fault Alarm

Status

Type Options Test

Fault Alarm

Set Fault Alarm:

OFF

=Accept

=Cancel

To check the status of the fault alarm, from the Fault Alarm menu, select Status and

press Enter appears:

To change the status of the fault alarm,

OFF or ON and press Enter . The

select screen returns to the Fault Alarm menu.

. The following screen

68 dew.IQ User’s Manual

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Chapter 5. Programming the Settings Menu

5.2.2 Setting the Fault Alarm Type

Note: For more information on alarm types, see “How the Alarm

Types Work” on page 49.

Fault Alarm Status

Type

Options Test

Fault Alarm Fault Relay:

Fail-Safe

=Accept

=Cancel

Normal

To check or change the fault alarm type,

select

Type and press Enter . The

following screen appears:

To change the type of fault alarm used, select the non-highlighted option and press

Enter

Alarm menu.

. The screen returns to the Fault

5.2.3 Setting the Fault Alarm Options

Fault Alarm Status

Type

Options

Test

To check or change the

select

Options and press Enter . The

following screen appears:

Fault Alarm options,

Fault Alarm

Yes

=Accept

=Cancel

To set the

select screen returns to the Fault Alarm menu.

Then, press Cancel

Alarm on Range Error response,

Yes or No and press Enter . The

to return to the

Settings Menu.

dew.IQ User’s Manual 69

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Chapter 5. Programming the Settings Menu

5.2.4 Testing the Fault Alarm

Fault Alarm

Status Type Options

Test

Fault Alarm

Reset

Trip

=Accept

=Cancel

To test the

press Enter appears:

To reset the fault alarm, select

press Enter

select

Cancel

Fault Alarm, select Test and

. The following screen

Reset and

. To trip the fault alarm,

Trip and press Enter . Press

twice to return to the Settings

Menu.

5.3 Setting AutoCal

Note: Access to this menu does not require a passcode.

Note: The AutoCal Settings menu is only available for an M Series

probe. This menu is not available for an IQ.probe.

Settings Menu

Fault Alm...

AutoCal...

Cal Data... V/V Ratio...

AutoCal Settings

Interval

Cal Now

70 dew.IQ User’s Manual

Clock... Probes DpC Offset

To change the AutoCal settings, from the

Settings Menu select AutoCal and press

Enter

. The following screen appears:

To change the AutoCal interval settings,

Interval and press Enter . A screen

select similar to the following appears:

Page 81

5.3 Setting AutoCal (cont.)

Use the left and right arrow keys to select

Max:

08 Hours

Min:

/=Save =Cancel

each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel value), and return to the AutoCal Settings menu.

Chapter 5. Programming the Settings Menu

to save the new

to keep the previous

AutoCal Settings

Interval

Cal Now

AutoCal Settings AutoCal Now

Yes

=Accept

=Cancel

To manually initiate an immediate one-time

Enter

AutoCal, select Cal Now and press

. A screen similar to the following

appears:

To initiate the

AutoCal, select Yes. To

cancel the AutoCal select No. Press Enter

to confirm your selection and return to

the AutoCal Settings menu.

dew.IQ User’s Manual 71

Page 82

Chapter 5. Programming the Settings Menu

5.4 Entering Calibration Data for an M Series Probe

Note: Access to this menu requires a passcode (see “Entering Your

Passcode” on page 67).

Note: If you are using an IQ.probe, see “Viewing Calibration Data for

an IQ.probe” on page 75.

Settings Menu

Fault Alm...

AutoCal...

Cal Data...

V/V Ratio...

Clock... Probes DpC Offset

To enter M Series probe calibration data, from the Settings Menu select Cal Data and

press Enter

and press Enter appears:

Cal Data

MH/DP Cal...

FH DPCal...

Cal Reference... Probe SN

For a standard M Series probe, the MH/DP

Cal option is highlighted by default. Press

Enter

and continue to the next section.

5.4.1 Selecting the Number of Points

Edit MH/DP Cal

Select Num of Points

Select Cal Point

Edit MH

Edit DP/°C

To select the number of points, highlight

Select Num of Points and press Enter .

The following screen appears:

. Then, enter your passcode

. The following screen

Use the left and right arrow keys to select

Max:

Min:

/=Save =Cancel

each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value), and return to Edit MH/DP Cal.

72 dew.IQ User’s Manual

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Chapter 5. Programming the Settings Menu

5.4.2 Selecting the Calibration Point

Edit MH/DP Cal

Select Num of Points

Select Cal Point

Edit MH Edit DP/°C

To select the calibration point, highlight

Select Cal Point and press Enter . The

following screen appears:

Use the left and right arrow keys to select

Max:

Min:

/=Save =Cancel

each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel value), and return to the Edit MH/DP Cal menu.

5.4.3 Entering the MH Calibration

Edit MH/DP Cal

Select Num of Points Select Cal Point

Edit MH

Edit DP/°C

To enter the MH calibration value for the selected point, highlight

Enter

. The following screen appears:

to save the new

to keep the previous

Edit MH and press

Set MH [00]

Max:

4.0000

0.0000

Min:

0.0000

/=Save =Cancel

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value), and return to the Edit MH/DP Cal menu.

dew.IQ User’s Manual 73

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Chapter 5. Programming the Settings Menu

5.4.4 Entering the Dew Point Calibration

Edit MH/DP Cal

Select Num of Points Select Cal Point Edit MH

Edit DP/°C

Set DP/°C [00]

Max:

+100.00

–110.00 °C

Min:

–200.00

/=Save =Cancel

To enter the dew point calibration value for the selected point, highlight Edit DP/°C

and press Enter

. The following screen

appears:

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value), and return to the Edit MH/DP Cal

menu. Press Cancel

Data menu.

to return to the Cal

74 dew.IQ User’s Manual

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Chapter 5. Programming the Settings Menu

5.5 Viewing Calibration Data for an IQ.probe

Note: Access to this menu requires a passcode (see “Entering Your

Passcode” on page 67).

Note: If you are using an M Series probe, see “Entering Calibration

Data for an M Series Probe” on page 72.

Settings Menu

Fault Alm...

AutoCal...

Cal Data...

V/V Ratio...

Clock... Probes DpC Offset

To view the IQ.probe calibration data, from the Settings Menu select Cal Data and press

Enter

. Then, enter your passcode and

press Enter appears:

Cal Data

MH/DP Cal...

FH/DPCal...

Cal Reference... Probe SN

For an

highlighted by default. Press Enter continue to the next section.

IQ.probe, the FH/DP Cal option is

5.5.1 Selecting the Calibration Point

To select the calibration point, highlight

Select Cal Point

Read FH Value Read DP Value

Select Cal Point and press Enter . The

following screen appears:

. The following screen

and

Use the left and right arrow keys to select each digit and the up and down arrow keys

Max:

Min:

/=Save =Cancel

to increase or decrease its value. Press

Enter

to save the new value (or Cancel

to keep the previous value), and return

to Read FH/DP Calibration.

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Chapter 5. Programming the Settings Menu

5.5.2 Reading the FH Value

To view the FH calibration value for the

Select Cal Point

Read FH Value

Read DP Value

selected point, highlight Read FH and press

Enter

. The following screen appears:

Viewing FH [00]

Read Only

10.6821

=Exit

The FH value is for viewing only. When you

are ready, press Cancel

Read FH/DP Calibration menu.

5.5.3 Reading the DP Value

To view the DP calibration value for the

Select Cal Point Read FH Value

Read DP Value

Viewing DP [00]

Read Only

–110.00

=Exit

selected point, highlight

press Enter appears:

The DP value is for viewing only. When you

are ready, press Cancel

Read FH/DP Calibration menu. Press

Cancel

Menu.

to return to the

Read DP and

. The following screen

to return to the

twice to return to the Settings

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Chapter 5. Programming the Settings Menu

5.6 Reading and Setting the Calibration References

Note: This section applies only to an M Series probe. The Cal Reference

menu is not available for an IQ.probe.

Note: Access to this menu requires a passcode (see “Entering Your

Passcode” on page 67).

IMPORTANT: The dew.IQ is factory programmed with high and low

reference MH values. These values are generated from a factory lab calibration and should not be changed without first consulting BHGE technical support. Changes to these values will alter the accuracy of your measurements.

Settings Menu

Fault Alm... AutoCal...

Cal Data...

V/V Ratio...

Cal Data

MH/DP Cal...

FH/DPCal...

Cal Reference...

Probe SN

Clock... Probes DpC Offset

To update the calibration references, from the Settings Menu select Cal Data and press

Enter

press Enter

. Then, enter your passcode and

. The following screen

appears:

To view or edit the calibration reference settings, select

Enter

. Proceed to the next section.

Cal Reference and press

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Chapter 5. Programming the Settings Menu

5.6.1 Setting the Calibration High Reference

Edit Cal Refs

High Reference

Low Reference

To update the high reference setting, from the Edit Cal Refs menu select High

Reference and press Enter . A screen

similar to the following appears:

High MH Ref.

Max:

15.0000

3.0419 MH

Min:

0.0000

/=Save =Cancel

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease its value. After the changes have been

made, press Enter

. The screen returns

to the Edit Cal Refs menu.

5.6.2 Setting the Calibration Low Reference

Edit Cal Refs

High Reference

Low Reference

To update the low reference setting, from

Edit Cal Refs menu select Low

the

Reference and press Enter . A screen

similar to the following appears:

Low MH Ref.

Max:

15.0000

0.1752 MH

Min:

0.0000

/=Save =Cancel

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease its value. After the changes have been

made, press Enter

. The screen returns

to the Edit Cal Refs menu.

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Chapter 5. Programming the Settings Menu

5.7 Entering an M Series Probe Serial Number

Note: This section applies only to an M Series probe. The Probe SN

menu is not available for an IQ.probe.

Note: Access to this menu requires a passcode (see “Entering Your

Passcode” on page 67).

Settings Menu

Fault Alm... AutoCal...

Cal Data...

V/V Ratio...

Cal Data

MH/DP Cal...

FH/DPCal...

Cal Reference

Probe SN

Enter M2 Probe SN

Max:

99999999

10000000

Min:

/=Save =Cancel

Clock... Probes DpC Offset

To update the probe serial number, from the Settings Menu select Cal Data and press

Enter

press Enter

. Then, enter your passcode and

. The following screen

appears:

To view or edit the probe serial number,

select

Probe SN and press Enter . The

following screen appears:

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease its value. After the changes have been

made, press Enter

. The screen returns

to the Cal Data menu.

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Chapter 5. Programming the Settings Menu

5.8 Setting the Volume Mixing Ratio

Note: Access to this menu requires a passcode (see “Entering Your

Passcode” on page 67).

Settings Menu

Fault Alm... AutoCal... Cal Data...

V/V Ratio...

Clock... Probes DpC Offset

To set the volume mixing ratio, from the

Settings Menu select V/V Ratio and press

Enter

press Enter sections.

5.8.1 Setting the Pressure Units

Volume Mixing Ratio

Press. Units

Press. Value k x PPMv

Volume Mixing Ratio

Pressure Units:

kPa(a)

=Accept

Bar(g)

PSI(g)

=Cancel

To set the pressure units, select

Units and press Enter . The following

screen appears:

Use the left and right arrow keys to

highlight the desired units. Press Enter

to save the new units (or Cancel to

keep the previous units) and return to the

Volume Mixing Ratio menu.

. Then, enter your passcode and

. Proceed to the following

Press.

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Chapter 5. Programming the Settings Menu

5.8.2 Setting the Pressure Value

Volume Mixing Ratio

Press. Units

Press. Value

k x PPMv

Line Pressure:

Max:

70000.000

00101.325 kPa(a)

Min:

0.000

/=Save =Cancel

To set the pressure value, select Press.

Value and press Enter . The following

screen appears:

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel value) and return to the Volume Mixing

Ratio menu.

5.8.3 Setting the k x PPMv Multiplier

Volume Mixing Ratio

Press. Units Press. Value

k x PPMv

To set the multiplier value, select

and press Enter appears:

to save the new

to keep the previous

k x PPMv

. The following screen

k x PPMv Multiplier

Max:

100.000

001.000

Min:

0.001

/=Save =Cancel

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value) and return to the Volume Mixing

Ratio menu.

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Chapter 5. Programming the Settings Menu

5.9 Setting the System Clock

Note: Access to this menu does not require a passcode.

Settings Menu

Fault Alm... AutoCal... Cal Data... V/V Ratio...

Clock...

Probes DpC Offset

5.9.1 Setting the Hour

Thu 2/4/2010 13:44

Hour

Minutes Month Date

Set Hour [0-23]:

Max:

Min:

/=Save =Cancel

Year

To set the system clock, from the Settings

Menu select Clock and press Enter to

display the current day, date and time. To make changes, see the following sections.

To change the hour, select

Enter

. The following screen appears:

Hour and press

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value) and return to the previous menu.

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5.9.2 Setting the Minutes

Chapter 5. Programming the Settings Menu

Thu 2/4/2010 13:44

Hour

Minutes

Month Date

Set Minutes [0-59]:

Max:

Min:

/=Save =Cancel

Year

5.9.3 Setting the Month

Thu 2/4/2010 13:44

Hour Minutes

Month

Date

Year

To change the minutes, select Minutes and

press Enter

. The following screen

appears:

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value) and return to the previous menu.

To change the month, select

press Enter

. The following screen

Month and

appears:

Set Month [1-12]:

Max:

Min:

/=Save =Cancel

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value) and return to the previous menu.

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Chapter 5. Programming the Settings Menu

5.9.4 Setting the Date

Thu 2/4/2010 13:44

Hour Minutes Month

Date

Set Date:

Max:

Min:

/=Save =Cancel

Year

5.9.5 Setting the Year

Thu 2/4/2010 13:44

Hour Minutes Month Date

Year

To change the date, select Date and press

Enter

. The following screen appears:

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value) and return to the previous menu.

To change the year, select

Enter

. The following screen appears:

Year and press

Set Year:

Max:

2099

2010

Min:

2007

/=Save =Cancel

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value) and return to the previous menu.

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Chapter 5. Programming the Settings Menu

5.10 Selecting the Probe Type

Note: Access to this menu requires a passcode (see “Entering Your

Passcode” on page 67).

IMPORTANT: Changing the probe type will reset the analog output,

measurement alarms, fault alarm and output range to their factory default settings.

Settings Menu

Fault Alm... AutoCal... Cal Data...

V/V Ratio...

Settings Menu Select Probe:

STANDARD

=Accept

IQ.probe

=Cancel

Clock...

Probes

DpC Offset

To select the probe type, from the Settings

Menu select Probes and press Enter .

Then, enter your passcode and press

Enter

. The following screen appears:

Use the left or right arrow key to select the

correct probe type and press Enter

dew.IQ will reboot in 5 seconds.

. The

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Chapter 5. Programming the Settings Menu

5.11 Setting a Constant DP °C Offset

Note: Access to this menu does not require a passcode.

This feature enables the user to add a constant DP °C offset to all

dew.IQ readings. It allows for positive or negative offset limiting up to

±50°C. The constant offset only applies within the calibrated range of the probe, and the measurement alarms will use the constant offset within that range.

Use the following procedure to set the DP °C Offset:

Settings Menu

Fault Alm... AutoCal... Cal Data...

V/V Ratio...

Enter Td Offset:

Max:

+50.00

+05.00 °C

Min:

–50.00

/=Save =Cancel

Clock... Probes

DpC Offset

To set a constant DP °C offset, from the

Settings Menu select DpC and press

Enter

. The following screen appears:

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease

its value. Press Enter

value (or Cancel

to save the new

to keep the previous

value) and return to the previous menu.

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Chapter 6. Service and Maintenance

6.1 Introduction

The dew.IQ is designed to be maintenance and trouble free. However,

because of severe process conditions and other factors, minor

problems may occur from time to time. Some of the most common

problems and recommended maintenance procedures are discussed in

this chapter. If you cannot find the information you need in this

chapter, please consult BHGE for help.

CAUTION! Do not attempt to troubleshoot the dew.IQ

beyond the instructions in this chapter. If you do, you may damage the unit and void the warranty.

This chapter covers the following topics:

• “The Service Menu” on page 87

• “Troubleshooting Common Problems” on page 88

• “Replacing/Recalibrating Moisture Probes” on page 89

• “Cleaning the dew.IQ Front Panel” on page 90

Proceed to the appropriate section to perform any of the above tasks.

6.2 The Service Menu

The dew.IQ Service menu is intended for use only by trained service

engineers and requires the use of a Factory-Level Passcode for access.

Service Passcode:

0000

/=Save =Cancel

dew.IQ User’s Manual 87

Use the left and right arrow keys to select each digit to be changed and the up and down arrow keys to increase or decrease its value. After the passcode has been

entered, press Enter to proceed.

Page 98

Chapter 6. Service and Maintenance

6.3 Troubleshooting Common Problems

If the dew.IQ measurements read too wet or too dry, or if they do not make sense, there may be a problem with a process component or the probe. See Table 7 below to troubleshoot and solve such problems.

Table 7: Troubleshooting Guide for Common Problems

Possible Cause Response and Action

Symptom: The accuracy of the moisture sensor is questioned.

There is insufficient time for the system to equilibrate.

Dew point at the sampling point is different from the dew point of the main stream.

Sensor or sensor shield is affected by process contaminants

Sensor is contaminated with conductive particles.

Sensor is corroded Response: Reads too wet or too dry

Stream particles causing abrasion.

Response: Reads too wet during dry down conditions or too dry in wet up conditions.

Action: Change the flow rate. A change in dew point indicates the sample system is not at equilibrium or there is a leak. Allow sufficient time for sample system to equilibrate and moisture reading to become steady. Check for leaks.

Response: Reads too wet or too dry. Action: Readings may be correct if the sampling point

and main stream do not run under the same process conditions. The different process conditions cause readings to vary. If sampling point and main stream conditions are the same, check sample system pipes, and any pipe between the sample system and main stream for leaks. Also, check sample system for adsorbing water surfaces, such as rubber or plastic tubing, paper-type filters, or condensed water traps. Remove or replace the contaminating parts with stainless steel parts.

Response: Reads too wet or too dry Action: Clean the sensor and the sensor shield, then

reinstall the sensor.

Response: Reads high dew point. Action: Clean the sensor and the sensor shield, then

reinstall the sensor. Also, install a proper filter (i.e. sintered or coalescing element).

Action: Return probe to factory for evaluation. Response: Reads too wet or too dry. Action: Return probe to factory for evaluation.

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Chapter 6. Service and Maintenance

6.4 Replacing/Recalibrating Moisture Probes

For maximum accuracy, moisture probes should be returned to the

factory for recalibration every 6–12 months, depending on the

application. Under very severe conditions, more frequent calibrations

are recommended However, under very mild conditions, less frequent

calibrations are necessary. Contact a BHGE applications engineer for

your specific recommended calibration frequency

All new or recalibrated moisture probes must be installed in

accordance with the instructions in Chapter 2, Installation.

IMPORTANT: To maintain good contact at the terminal block and to

avoid damaging the pins on the wiring connector, pull the connector straight off (not at an angle) the terminal block. Make the cable connections while the connector is off the unit. After the wiring is complete, push the connector straight onto the terminal block (not at an angle).

After the probe has been installed and wired, enter the probe

calibration curve data as described in Chapter 5, Programming the

Settings Menu. Each probe is shipped with its own Calibration Data

Sheet, which includes the serial number for that probe.

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Chapter 6. Service and Maintenance

6.5 Cleaning the dew.IQ Front Panel

When necessary, use the procedure below to clean the front panel of the dew.IQ. You will need the following items:

• Clean, lint-free cloth

• Cleaning solution (soap and warm water)

To clean the front panel, complete the following steps:

1. Moisten the cloth with the cleaning solution.

2. Gently wipe the front panel clean.

3. Use a dry cloth to dry the front panel.

90 dew.IQ User’s Manual