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GE |
|
Measurement & Control |
Moisture |
HygroPro
User’s Manual
916-099 Rev. D
November 2012
GE
Measurement & Control
HygroPro
Moisture Transmitter
User’s Manual
916-099 Rev. D
November 2012
www.ge-mcs.com
©2012 General Electric Company. All rights reserved. Technical content subject to change without notice.
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ii
Contents
Chapter 1: Installation
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2 Sample System Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.3 Mounting the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.4 Wiring the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.4.1 Standard Wiring Connections . . . . . . . . . . . . . . . . . . . . . . .6
1.4.2 Hazardous Area Wiring Connections . . . . . . . . . . . . . . . .11
Chapter 2: Operation
2.1 Powering Up & Programming. . . . . . . . . . . . . . . . . . . . . . . . . . .19
2.1.1 Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
2.1.2 Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
2.2 Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
2.2.1 Unlocking the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
2.2.2 Entering the Setup Program. . . . . . . . . . . . . . . . . . . . . . . .22
2.2.3 Selecting Measurement Parameters. . . . . . . . . . . . . . . . . .23
2.2.4 Setting Up the Display. . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.2.5 Setting Up the Analog Output . . . . . . . . . . . . . . . . . . . . . .26
2.2.6 Entering the Node ID. . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
2.2.7 Setting Up the RS485 Output . . . . . . . . . . . . . . . . . . . . . .29
2.3 Advanced Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
2.3.1 Setting Up the Pressure/Temperature Displays . . . . . . . . .30
2.3.2 Entering Sensor Calibration Data . . . . . . . . . . . . . . . . . . .31
2.3.3 Locking and Unlocking the Keypad . . . . . . . . . . . . . . . . .33
2.3.4 Locking and Unlocking the Menus . . . . . . . . . . . . . . . . . .33
HygroPro User’s Manual |
Page iii |
Contents
Chapter 3: Service & Maintenance
3.1 The Service Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 3.2 Moisture Probe Error Conditions. . . . . . . . . . . . . . . . . . . . . . . . 36 3.3 Cleaning the Moisture Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.3.1 Preparing to Clean the Probe . . . . . . . . . . . . . . . . . . . . . . 36 3.3.2 Replacing the RTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.3.3 Removing the Transmitter from the System . . . . . . . . . . 38 3.3.4 Removing the Probe from the Transmitter. . . . . . . . . . . . 38 3.3.5 Cleaning the Sensor and the Shield . . . . . . . . . . . . . . . . . 40 3.3.6 Installing the Probe in the Transmitter . . . . . . . . . . . . . . . 41 3.3.7 Evaluating the Cleaned Probe . . . . . . . . . . . . . . . . . . . . . 41
Chapter 4: Specifications
4.1 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 4.2 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 4.3 Mechanical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 4.4 Moisture Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 4.5 Built-In Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 4.6 Built-In Pressure Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 4.7 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Page iv |
HygroPro User’s Manual |
Chapter 1: Installation
1.1 Introduction
The HygroPro Moisture Transmitter is a compact, intrinsically-safe, loop-powered, 4-20 mA transmitter that provides accurate dew/frost point measurements over a range of –110 to 20°C (-166 to 68°F). It features an integrated display and a six-button keypad, and it is housed in an IP67/Type 4X enclosure.
The HygroPro transmitter uses an aluminum oxide moisture sensor, and it includes a temperature thermistor and a pressure transducer on a common mount for calculation of parameters such as:
•ppmv in gases
•ppmw in liquids
•pounds per million standard cubic feet in natural gas
•process relative humidity.
IMPORTANT: To install the HygroPro in a hazardous (classified) area, see Hazardous Area Wiring Connections on page 15.
HygroPro User’s Manual |
Page 1 |
Chapter 1: Installation
1.2 Sample System Guidelines
The HygroPro transmitter can be installed in a sample system or directly in the process line. However, GE recommends that the unit be installed in a sample system to protect the probe from potentially damaging components in the process stream. Figure 1 below shows a typical sample system.
HygroPro
Flow |
Needle |
|
Valve 1 |
Probe
Needle
Valve 2 |
Flow Cell |
|
Intake near the center of the
pipe is recommended. |
See note below |
Figure 1: A Typical Sample System
Note: At least 5 ft (1.5 m) of 1/4” (6 mm) tubing vented to atmosphere will ensure an accurate process sample and avoid diffusion of ambient air moisture back into the process.
Page 2 |
HygroPro User’s Manual |
Chapter 1: Installation
1.2 Sample System Guidelines (cont.)
In the sample system shown in Figure 1 on the previous page, fully open Valve 1 and use Valve 2 to regulate the sample flow for measurements at process system pressure. For measurements at atmospheric pressure, fully open Valve 2 and use Valve 1 to regulate the sample flow.
Before constructing a sample system, consult a GE application engineer and observe the following guidelines:
•The sample system should be very simple and should contain as few components as possible. All or most of those components should be located downstream of the measurement point.
•Sample system components must not affect moisture readings. Most common filters and pressure regulators are not suitable for sample systems because the wetted parts adsorb moisture or release moisture into the sample system. They may also allow ambient contamination to enter the sample system. If possible, use stainless steel for all wetted parts.
•The HygroPro probe should be oriented perpendicular to the sample system inlet. For dimensions and other sample system requirements see Mechanical Specifications on page 46.
•Sample systems should be tested for leaks prior to operation, using a Snoop leak detector, to verify the integrity of connections, components and fittings.
IMPORTANT: When pressurizing or depressurizing the sample system, be careful to avoid shock damage to the moisture sensor.
HygroPro User’s Manual |
Page 3 |
Chapter 1: Installation
1.3 Mounting the Transmitter
!CAUTION!
If the HygroPro will be installed directly into the process line, consult GE for proper installation instructions and precautions before proceeding.
Refer to Figure 2 below and complete the steps on the next page to install the HygroPro transmitter.
Probe Hex Nut 
3/4-16 UNF-2A 
Shield
Figure 2: HygroPro Installation
Page 4 |
HygroPro User’s Manual |
Chapter 1: Installation
1.3 Mounting the Transmitter (cont.)
1.Make sure the sintered or stainless-steel shield is in place over the sensor. This shield protects the aluminum oxide sensor from damage during operation.
2.Using the integral 3/4-16 straight male thread, screw the probe end of the transmitter into the process or sample system fitting. Make sure not to damage the threads.
Note: A 3/4-16 to G 1/2 thread adapter is available from GE.
3.Using a 1-1/8” wrench on the probe hex nut, tighten the probe securely into the process or sample system fitting.
!CAUTION!
Do not apply torque to the transmitter electronic module to tighten the unit into its fitting.
Note: If there is insufficient space to rotate the HygroPro during installation, remove the Replaceable Transducer Element (RTE) from the transmitter, install it in the fitting, then re-install the the transmitter onto the RTE.
1.4 Wiring the Transmitter
Proceed to the appropriate section for instructions on:
•Standard Wiring Connections (proceed to next page)
•Hazardous Area Wiring Connections (proceed page 15)
HygroPro User’s Manual |
Page 5 |
Chapter 1: Installation
1.4.1 Standard Wiring Connections
The HygroPro is a 4-20 mA loop-powered device that can use the same two wires for its measurement signal lines and its power supply lines. Follow the instructions in this section only for units not requiring hazardous (classified) area protection.
IMPORTANT: To install the HygroPro in a hazardous (classified) area, see Hazardous Area Wiring Connections on page 15.
The transmitter must be wired using the factory-supplied, 2-meter cable. If a different cable length is required, please contact the factory for assistance.
Note: If a longer cable is required, you may splice an extension onto the standard cable. Be sure to connect leads of the same color together. For example, connect blue lead to blue lead, brown lead to brown lead, etc.
The HygroPro may be connected to either of the following types of external systems:
•an external device that can provide the loop power to the HygroPro and can also receive and display the 4-20 mA measurement output from the HygroPro (proceed to next page)
•an external power supply to provide power to the HygroPro plus a personal computer (PC) running GE’s PanaView™ interface software (proceed to page 13)
Page 6 |
HygroPro User’s Manual |
Chapter 1: Installation
1.4.1a Standard Connections - Without a PC
IMPORTANT: To install the HygroPro in a hazardous (classified) area, see Hazardous Area Wiring Connections on page 15.
Refer to Figure 3 on the next page and Table 1 below, and complete the following steps to wire the transmitter.
Table 1: Cable Leads - Without a PC
Lead |
Connection Description |
|
|
Blue |
Power Supply (+) [12-28 VDC] |
|
|
Brown |
Power Supply (–) [Return] |
|
|
Shield |
Earth Ground [recommended] |
|
|
1.Push the female connector end of the factory-supplied cable into the mating male connector on the transmitter module. Make sure the pins are properly aligned. Then, secure the connectors together by sliding the metal sleeve on the cable over the connectors and turning it clockwise until it is tight.
2.Using the flying leads at the other end of the factory-supplied cable, connect the transmitter to the external system.
Note: The blue and brown leads also carry the measurement signal current output of 4-20 mA.
3.Trim any unused leads even with the outer cable jacket to remove any bare wire and prevent accidental short circuits.
HygroPro User’s Manual |
Page 7 |
Chapter 1: Installation
1.4.1a Standard Connections - Without a PC (cont.)
|
|
Shield |
|
12-28 VDC |
blue |
brown |
|
+ |
– Return |
|
|
|
Power and |
Earth |
|
|
Measurement |
Ground |
|
|
Circuits |
|
|
Figure 3: Standard Connections - Without a PC |
|||
Page 8 |
HygroPro User’s Manual |
Chapter 1: Installation
1.4.1b Standard Connections - With a PC
IMPORTANT: To install the HygroPro in a hazardous (classified) area, see Hazardous Area Wiring Connections on page 15.
Refer to Figure 4 on the next page and Table 2 below, and complete the following steps to wire the transmitter.
|
Table 2: Cable Leads - With a PC |
|
Lead |
|
Connection Description |
|
|
|
Blue |
|
Power Supply (+) [12-28 VDC] |
|
|
|
Brown |
|
Power Supply (–) [Return] |
|
|
|
White |
|
RS485-RS232 Converter (+) [positive] |
|
|
|
Black |
|
RS485-RS232 Converter (–) [negative] |
|
|
|
Ground |
|
Earth Ground |
|
|
|
1.Connect an RS485-RS232 converter (customer-supplied) to an available serial port on the PC.
2.Push the female connector end of the factory-supplied cable into the mating male connector on the transmitter module. Make sure the pins are properly aligned. Then, secure the connectors together by sliding the metal sleeve on the cable over the connectors and turning it clockwise until it is tight.
3.Using the flying leads at the other end of the factory-supplied cable, connect the transmitter to the external system.
4.Trim any unused leads even with the outer cable jacket to remove any bare wire and prevent accidental short circuits.
HygroPro User’s Manual |
Page 9 |
Chapter 1: Installation
1.4.1b Standard Connections - With a PC (cont.)
|
Power |
|
|
Supply |
|
|
24 VDC |
|
|
+ |
– |
|
Blue |
Brown |
+ White |
? Black |
Earth Ground |
RS485 ? RS232 |
||
Converter Box |
||
|
|
RS232 |
|
PanaView |
|
Figure 4: Standard Connections - With a PC |
||
Page 10 |
HygroPro User’s Manual |
Chapter 1: Installation
1.4.2 Hazardous Area Wiring Connections
Before installing and using the HygroPro in a hazardous (classified) area, be sure to read and understand all applicable reference materials. This includes:
•all EU or North American Standards and Directives (see Table 3 and Table 4 on page 17)
•all local safety procedures and practices
•the FM Schematic drawing (see Figure 5 on the next page)
•this user’s manual
Note: It is the installer’s responsibility to follow all applicable standards and procedures.
!WARNING!
The procedures in this section must be performed only by trained technicians who have the necessary skills and qualifications.
HygroPro User’s Manual |
Page 11 |
12 Page
User’s HygroPro |
262)-#752 dwg .(ref Schematic FM 5: Figure |
Manual |
|
HygroPro
Loop Terminal
Safety Entity Parameters:
Vmax = 28 V
Imax = 93.3 mA
Pi = 0.653 W
Ci = 0
Li = 62 uH
RS485 Comm Terminal
Safety Entity Parameters:
Vmax = 3.72 V
Imax = 228 mA
Pi = 212 mW
Ci = 0
Li = 62 uH
Notes:
Hazardous or Non-Hazardous Location Class I, Division 1, Group ABCD Class II, Division 1, Group EFG Class III, Division 1
Use cable P/N 230-049-01
blue brown
black white
1.Installation shall be in accordance with the National Electrical Code (ANSI/NFPA 70) or Part One of the Canadian Electrical Code (C221), as applicable.
2.The subject equipment is FM Approved, and FM Approved for Canada for the following Hazardous (Classified) Locations and Protection Methods:
Intrinsically Safe, Class I, II, III, Division 1, Group ABCDEFG, T4 T Ambient: -40 C to 60 C
Enclosure: IP 67
3.Galvanically Isolated FM Approved (US) or Canadian Certified (for Canada) associated apparatus installed in accordance with the manufactruer's instructions.
Non-Hazardous Location
Associated Apparatus |
|
Loop-Power Device |
Note 3 |
|
Note 4 |
|
||
|
|
|
Associated Apparatus |
|
RS485 Comm |
Note 3 |
|
Note 4 |
|
|
|
4.Equipment to which associated apparatus is connected shall not use or generate in excess of 250V.
5.Maintain the following relationship between Intrinsic Safety (Entity) Parameters of HygroPro and associated apparatus:
HygroPro Vmax > associated apparatus Voc HygroPro Imax > associated apparatus Isc HygroPro Pi > associated apparatus Po HygroPro Ci + Ccable < associated apparatus Ca HygroPro Li + Lcable < associated apparatus La
Hazardous 2.4.1 |
Installation 1:Chapter |
).(cont Connections Wiring Area |
|
|
|
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