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U30-NRC
Operating Manual
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Onset U30-NRC Operating Manual

Contacting Onset
For support, please contact the company that you bought the products from: Onset Computer Corporation or an Onset Authorized Dealer.
Onset Computer Corporation 470 MacArthur Blvd. Bourne, MA 02532
Mailing Address:
Phone: 1-800-LOGGERS (1-800-564-4377) or 508-759-9500
Fax: 508-759-9100
Customer Service Hours: 8AM to 5PM Eastern Time
Technical Support Hours: 8AM to 8PM Eastern Time
E-mail: loggerhelp@onset or hobolink@onsetcomp.com
Main Onset Web site: www.onsetcomp.com
Copyrights and Trademarks
© 2009–2014 Onset Computer Corporation. All rights reserved. Onset, HOBO, HOBOlink, HOBOware, BoxCar, and FlexSmart are trademarks or registered trademarks of Onset Computer Corporation for its data logger products and configuration/interface software. Macintosh is a registered trademark of Apple, Inc. Microsoft and Windows are registered trademarks of Microsoft Corporation. All other trademarks are the property of their respective companies.
Doc#: 11866-H
Onset Computer Corporation
Contents
About the HOBO U30/NRC Station .............................................................. 4
Introduction ........................................................................................................................................................................... 4
Key Features .......................................................................................................................................................................... 5
U30 Station Components .................................................................................................................................................. 6
Smart Sensors ........................................................................................................................................................................ 8
The Analog Sensor Port ..................................................................................................................................................... 9
Setup and Test .......................................................................................... 11
Initial Setup and Test ....................................................................................................................................................... 11
Installing Mounting Plates ............................................................................................................................................ 12
Connecting Smart Sensors ............................................................................................................................................ 13
Connecting Analog Sensors ........................................................................................................................................... 15
Connecting the Battery ................................................................................................................................................... 16
Connecting the HOBO U30 Station to HOBOware Pro ....................................................................................... 17
Configuring Analog Sensor Ports or a TRMSA Module ...................................................................................... 18
Launching the HOBO U30/NRC ................................................................................................................................... 19
Configuring Alarms on the U30/NRC ....................................................................................................................... 20
Alarms Dialog for the U30 Station ............................................................................................................................. 21
Alarm Configuration Dialog for the U30/NRC ...................................................................................................... 22
Installing the HOBO U30 Station in the Field ............................................. 23
Field Installation Procedure ......................................................................................................................................... 23
Connecting Grounding Wire ......................................................................................................................................... 24
Installing Weatherproof Cable Channels ................................................................................................................ 25
Connecting Solar or AC Power ..................................
Connecting Equipment to the Relay Contact ......................................................................................................... 29
Mounting the HOBO U30 Station to a Pole ............................................................................................................. 30
The U30 Relay Contact .............................................................................. 31
................................................................................................... 28
An Overview of the U30 Relay Contact .................................................................................................................... 31
Changing the State of the U30 Relay Contact ........................................................................................................ 33
Relay Example - Start Device ....................................................................................................................................... 34
Relay Contact Example - Stop Device ....................................................................................................................... 35
Maintenance .............................................................................................. 36
General Maintenance ....................................................................................................................................................... 36
HOBO U30/NRC - 1 - User’s Manual
Adding a Sensor ................................................................................................................................................................. 37
Removing/Replacing a Sensor .................................................................................................................................... 37
Testing Smart Sensors .................................................................................................................................................... 38
Checking the U30 Status ................................................................................................................................................ 38
Inspecting the HOBO U30 Station .............................................................................................................................. 38
Troubleshooting the HOBO U30 Station.................................................................................................................. 39
The Smart Sensor Expander Board ............................................................ 41
Opening the Secondary Cable Slot ............................................................................................................................. 41
Installing the Expander Board ..................................................................................................................................... 43
The Battery ............................................................................................... 45
Overview ............................................................................................................................................................................... 45
Battery Life .......................................................................................................................................................................... 46
Maximizing Battery Life ................................................................................................................................................. 47
Battery Voltage .................................................................................................................................................................. 48
Connecting the Battery ................................................................................................................................................... 49
Maintaining the Battery ................................................................................................................................................. 50
Replacing the Battery ...................................................................................................................................................... 50
Troubleshooting the Battery ........................................................................................................................................ 51
Battery Life without External Power ........................................................................................................................ 51
Reference .................................................................................................. 52
General U30 Specifications ........................................................................................................................................... 52
Analog Sensor Port ........................................................................................................................................................... 54
Time Accuracy .................................................................................................................................................................... 56
Logger Status LEDs ........................................................................................................................................................... 57
Memory ................................................................................................................................................................................. 58
Items Required for Field Installation ........................................................................................................................ 59
Accessories .......................................................................................................................................................................... 60
FCC Part 15 Compliance ................................................................................................................................................. 61
Tripod Setup ............................................................................................. 62
Guidelines for Typical Field Setup ............................................................................................................................. 62
Field Preparation Checklist .......................................................................................................................................... 64
Items Required for Installation ................................................................................................................................... 65
Task 1: Assemble Tripod ............................................................................................................................................... 67
Task 2: Install Grounding Kit ....................................................................................................................................... 74
Task 3: Temporarily Install Upper Mast (Optional) ........................................................................................... 75
Task 4: Mount Cross Arm (Optional) ........................................................................................................................ 76
HOBO U30/NRC - 2 - User’s Manual
Task 5: Mount Upper Mast to Lower Mast ............................................................................................................. 77
Task 6: Mount Logger to Upper Mast ....................................................................................................................... 78
Task 7: Install Guy Wire Kit (Optional) .................................................................................................................... 79
Task 8: Position and Level Sensors ........................................................................................................................... 80
Task 9: Final Setup ........................................................................................................................................................... 81
HOBO U30/NRC - 3 - User’s Manual
ABOUT THE HOBO U30/NRC STATION
Introduction
Overview
The HOBO U30 Station is a data logging and monitoring device that can be easily reconfigured and adapted to a wide variety of applications. Up to 15 channels of data can be recorded and monitored remotely via HOBOlink™.
Use HOBOware® Pro software to set up analog data channels, communicate with the logger locally, and perform advanced plotting and analysis.
The HOBO U30 Station is a data logging system that can be easily reconfigured and adapted to a wide variety of applications. Up to 15 channels of data can be recorded and monitored with HOBOware Pro software.
You can set alarms to trip for specific sensor readings that you select or for overall system conditions, such as when the memory or battery is running low.
Contents
The HOBO U30 Station package includes:
• HOBO U30 Station
• Mounting Kit
• Grounding Wire
• Cable Entry and Sealing Kit
• Optional Analog Sensor Port, if ordered
• Optional Sensor Expander Board, if ordered
HOBO U30/NRC - 4 - User’s Manual
Key Features
Automatic Detection of Smart Sensors
The HOBO U30 Station automatically recognizes Smart Sensors. You can connect up to 10 Smart Sensors of any type or combination just by plugging them in before logging begins. No programming, wiring or calibration is required to set them up. The connections between the Smart Sensors and the logger are digital, ensuring accurate, reliable data collection and storage. The HOBO U30 Remote Monitoring System is compatible with all Smart Sensors used with the HOBO Weather Station and HOBO Micro Station.
Alarm Notification
The HOBO U30 Station supports alarm notification for sensors as well as system alarms. When an alarm is detected, the system can trigger the relay contact closure and send you a notification to your email/mobile phone. Alarms can be set for individual sensors and for overall system conditions.
Rechargeable Battery
The HOBO U30 Station uses a Sealed Lead Acid battery that can be recharged via a solar panel or AC adapter. This provides continuous power to keep the HOBO U30 Station recording and transmitting data for years.
Optional Analog Sensor Ports
The HOBO U30 Station can be optionally configured with two analog sensor ports. The ports are user­configurable and can accept and provide excitation power to a wide range of Onset and third-party sensors with 0-20 V or 0-20 mA output. The Analog sensor ports are factory-installed.
HOBO U30/NRC - 5 - User’s Manual
U30 Station Components
This topic describes the components for the HOBO U30 Station. Some components apply to specific models only, as noted.
Diagram
Component Descriptions
1. Outer Case - protects the U30.
2. Logger - The U30 Station.
3. Internal case. - This weatherproof case provides a second level of protection for the U30 electronic
circuitry. Do not open this case; doing so will void the warranty.
4. Expansion Port Connector (shown with optional Analog Sensor Port installed) - This port is where the
optional Analog Sensor Ports are factory-installed.
5. Relay Contacts - The Relay can be activated, deactivated, or pulsed on user-defined sensor alarms. The
relay can be configured as normally open or normally closed, and is rated for 30 V, 1 Amp maximum.
6. USB port - Plug in a USB cable here to connect directly to a computer.
7. GSM or Wi-Fi Antenna Connection (antenna installed on GSM or Wi-Fi models). Ethernet Connection
(for the Ethernet model only)
8. Vent - This vent allows pressure to equalize inside the enclosure, but does not allow liquid to pass
through.
Figure 1: U30 Components
NOTE: The pressure inside the case does not match the outside air pressure exactly so a barometric pressure sensor deployed within this case cannot measure the true atmospheric pressure unless it has its own unrestricted vent to the outside.
HOBO U30/NRC - 6 - User’s Manual
9. Smart Sensor Expansion Slot - The optional Smart Sensor Expander Board is installed here.
10. Cable access openings - All cables and wires are pulled through a protective rubber cable channel placed
in this opening. If using the optional factory-installed expander board for additional Smart Sensors, you will need to use the second cable access opening.
11. Smart Sensor Ports - Connect up to five Smart Sensors in these RJ-12 jacks. Use one jack to connect the
optional expander board for additional Smart Sensors.
12. Rechargeable Battery - 4-Volt Sealed Lead Acid (SLA) battery located inside the case.
13. Battery Connector - Plug in the 4-Volt Sealed Lead battery here.
14. Ground Connector - Plug in grounding wire here to ground the system.
15. External Power Supply - Plug in the compatible solar panel or AC adapter here.
Important: Always connect or disconnect external power before the battery. Damage may occur if the battery is unplugged before the external power is disconnected.
16. Status LEDs
There are three Light Emitting Diode (LED) status indicators.
Logging indicates whether the system is currently logging.
Alarm indicates if an alarm has been tripped.
Sensor active indicates that Smart Sensor network communications are occurring.
For more information on LEDs, refer to Diagnostics and troubleshooting.
17. Connection LEDs (Remote Communication Models only)
Top - Blinks when the HOBO U30 Station is attempting to contact a network (cellular tower, Wi-Fi, or Ethernet, depending on model)
Bottom - Blinks when the U30 is connected to HOBOlink.
HOBO U30/NRC - 7 - User’s Manual
Smart Sensors
Description
Smart sensors plug into the logger and collect data about various parameters.
The HOBO U30 Station automatically recognizes Smart Sensors. You can connect up to 10 Smart Sensors of any type or combination just by plugging them in before logging begins. No programming, wiring or calibration is required to set them up. The connections between the Smart Sensors and the logger are digital, ensuring accurate, reliable data collection and storage.
You do not have to stop the logger to add a new Smart Sensor. Simply connect the sensor and then select Force Relaunch on Next Connection in the Launch Configuration panel in HOBOware Pro.
Refer to www.onsetcomp.com for a current list of available sensors.
Cable Length
The HOBO U30 Station can work with a maximum total of Smart Sensor cable lengths up to 100 meters (328 feet), as measured from the logger connection point to the electronics embedded in the individual cables. Optional Smart Sensor extension cable lengths must also be included in the total. This limitation applies to Smart Sensor cables only. The lengths of other cables, such as those connected to the Analog Sensor Port or the analog portion of smart sensor cables do not need to be included in this total.
Data Channel Limitations
The HOBO U30 Station can log up to 15 data channels (not including the internal battery channel). This includes the two channels in the Analog Sensor Port plus each of the Smart Sensor channels (note that some Smart Sensors may have more than one channel). If you have more than 15 channels connected, some of the sensors will be ignored. You should remove any Smart Sensors that will not be used in the deployment, and disable the second channel in the Analog Sensor Port if it is not needed (the first channel cannot be disabled). If you connect a Smart Sensor that has multiple channels (such as temperature and relative humidity), all of its channels will be logged. There is no way to disable them.
HOBO U30/NRC - 8 - User’s Manual
The Analog Sensor Port
The Analog Sensor Port is an easy-to-configure, flexible DC signal-conditioning option that can be factory­installed in the HOBO U30 Station. This two-channel port can accept, and provide excitation power to a wide range of Onset and third-party sensors with 0–20 V or 0–20 mA output, including devices with 4–20 mA current loop interface, and sensors with 0–2.5, 0–5, and 0–10 V DC output.
The Analog Sensor Port features input protection and signal filtering, as well as delta-sigma A/D conversion and factory calibration. This port features extremely low power operation, resulting in long battery life for unattended data logging applications. Precision electronics provide ±0.25% accuracy from 50 mV to full scale (FS).
Sensors connected to this Analog Sensor Port can be configured using HOBOware Pro. Configuration options include scaling parameters, and excitation power. See page 15, as well as the HOBOware User’s Manual for configuration details. If your HOBO U30 Station does not have an Analog Sensor Port and you wish to upgrade to one, contact Onset Computer Corporation for information
Sensor Excitation
The Analog Sensor Port supports optional, user-configurable sensor excitation power and warm-up. Sensor excitation is a voltage output provided by the HOBO U30 Station to power a sensor that is connected to it. This power may be needed because the sensor is not self-powered, or because the sensor’s power capacity cannot support a long deployment.
When sensor excitation is required, the logger can provide 12 V DC sensor excitation voltage up to 50 mA total for transducers that require external power for proper operation. The excitation voltage has a programmable warm-up time and is controlled by the Analog Sensor Port.
Excitation power can affect the battery life. If your sensor does not require it, you should not include it in the channel configuration.
Modes
Carefully select the sensor excitation mode that best meets your needs.
• Warm-up mode
The logger supplies excitation power for a brief, user-programmable period prior to each measurement. This mode allows you to select the minimum warm-up time needed to allow for sensor stabilization, while conserving battery power.
For example, if you specify a warm-up of one second and set the Logging Interval to one minute, the HOBO U30 Station will power the external sensor for one second, log a measurement, and then turn off the excitation power for the next 59 seconds.
The warm-up time can be set from 5 milliseconds up to 120 seconds.
NOTE: If the warm-up time selected is greater than the logging interval selected, the logger will interpret the excitation mode as continuous.
HOBO U30/NRC - 9 - User’s Manual
• Continuous mode
The logger supplies constant excitation power to the sensor for the entire duration of the deployment. This mode will result in reduced battery life. Continuous mode is required if the sensor needs more than two minutes of warm-up time. The Analog Sensor Port begins functioning when logging begins.
When the ports are functioning correctly, the Active indicator LED on the port blinks once per logging interval to indicate that a successful measurement has been made. The Ex. On indicator LED will also be lit when excitation is enabled.
HOBO U30/NRC - 10 - User’s Manual
SETUP AND TEST
Initial Setup and Test
Before you take the U30 Station into the field for deployment you should perform some preliminary hardware assembly, configuration, and testing.
Summary of Tasks
1. Open Secondary Cable Slot (page 41) (if applicable)
If you ordered a Smart Sensor Expander Board and you will be using those ports now, you must remove the covering on the Secondary Cable Slot.
2. Install Mounting Plates (page 12)
3. Connect Smart Sensors (page 13) and Analog Sensors (page 15).
Onset recommends that you test all sensors you plan to deploy with the logger.
If you are using the Solar Radiation Shield, set up the Temperature and Temperature/RH sensors. There are several small pieces required to connect these sensors to the shield that could easily get lost in the field. It is strongly recommended you install these sensors in the solar radiation shield before going to the field.
4. Connect the Battery (page 16).
5. Connect the U30 to a computer (page 17).
6. Run HOBOware Pro and select the U30.
7. Configure the Analog Sensor Port (Optional) (page 18).
8. Configure Launch Settings, including alarms if required, and launch the logger (page 16).
9. Check the U30 Status (page 36).
10. Readout the U30.
11. Repack the logger and sensors for transit.
Onset strongly recommends that you use the original packaging when possible because it is custom­designed to protect the weather station and its components.
HOBO U30/NRC - 11 - User’s Manual
Installing Mounting Plates
Screw the mounting plates onto the back of the HOBO U30 Station case using a Phillips-head screwdriver. Be careful to orient the plates as shown below so that the screw heads are sunk into the screw holes.
Figure 2: Installing Mounting Plates
HOBO U30/NRC - 12 - User’s Manual
Connecting Smart Sensors
Before You Begin
• Connect Smart Sensors before you begin logging with the U30. Smart Sensors plugged in after logging
has already begun will be ignored.
• This procedure assumes that the Smart Sensor Expander Board and connector are already installed. See
page 41 for information.
Steps
NOTE: If you are using the Smart Sensor Expander Board, connect sensors to those ports first.
1. Run cables through the Secondary Cable Slot.
Figure 3: Run Cables through Secondary Slot
2. Plug the cables into the Smart Sensor Expander Board.
Figure 4: Plug Cables into Expander Board
HOBO U30/NRC - 13 - User’s Manual
3. Run cables for remaining Smart Sensors through the Primary Cable Slots and connect the cables into the
Primary Smart Sensor Ports.
Figure 5: Plug Cables into Primary Slots
Note: Smart sensors are listed in ascending order by serial number in HOBOware by default.
HOBO U30/NRC - 14 - User’s Manual
Connecting Analog Sensors
Refer to the specific sensor documentation for terminal connection details and use the pinout diagram on page 54 to connect a two- or three-wire sensor or transducer to the module’s terminals.
Figure 6: Connecting Analog Sensors
Steps
To make the connection:
1. Loosen the screw for each pin on the connector.
2. Insert the appropriate wire.
Make sure all wires attached to the Analog Sensor Port are routed through the cable access opening.
3. Tighten the screw.
Note on Cables
To fit into the holes in the rubber cable channel, the ideal cable diameter is 0.157 in (4.0 mm). If the cable is too small, build up the diameter using heat shrink. If it is too big and you are using the secondary cable access opening, then place the cable through the left-most hole in the rubber cable channel where the diameter can be up to 0.25 in (6.4 mm).
If you are not using the secondary opening or the cable is still too big, then splice on another cable with a smaller diameter to fit through the hole. See the steps later in this section for working with the rubber cable channel.
HOBO U30/NRC - 15 - User’s Manual
Connecting the Battery
This topic illustrates how to connect the battery to the U30 Station.
Illustration
Connect the built-in battery cable to the battery as shown below.
Figure 7: Connecting the Battery
HOBO U30/NRC - 16 - User’s Manual
Connecting the HOBO U30 Station to HOBOware Pro
This topic describes the procedure for connecting the HOBO U30 Station to HOBOware Pro.
1. Connect to Computer
To connect to a computer running HOBOware Pro, plug the “mini-USB” end of the USB cable provided into the USB port on the HOBO U30 Station and connect the “A” end to the USB port in your computer.
Figure 8: Connecting the U30 to a computer
If the device has never been connected to this computer before, it may take some time for the computer to detect the new hardware and report that it has connected successfully. One or more messages will appear, indicating that new hardware has been found. You may also hear a chime.
NOTE: Your computer may tell you to reboot before you can use the device. It is not necessary to reboot.
2. Run HOBOware Pro.
3. From the Device menu select Select Device ….
4. In the Select Device pane, click in the circle next to the desired device name and then click OK.
When the device is recognized by HOBOware Pro, the status bar at the bottom of the HOBOware Pro window will show the connection status.
HOBO U30/NRC - 17 - User’s Manual
Configuring Analog Sensor Ports or a TRMSA Module
The HOBO U30 Station uses smart sensors and an optional analog sensor port. FlexSmart modules and the analog sensor port are user-configurable to accommodate a wide range of Onset and third-party sensors.
To take advantage of this adaptability, HOBOware Pro lets you configure these modules/ports at launch time, or create and save different configurations to be loaded into the modules/ports whenever needed.
Refer to the HOBOware User’s Guide for more details on this topic.
Steps
1. From the Device menu, select choose Configure Modules/Ports.
If the logger is already logging, you will be warned that the logger will have to be stopped first.
The Select Channel to Configure dialog will appear showing all configurable Analog Sensors attached to the logger.
2. Click on the + sign to expand the entry and show the channels.
Each channel in the module is defined by its channel number (the physical order in the module), the configured channel name, and any location (assigned at launch) defined for this channel in the logger.
NOTE: The default channel names Voltage and Current are just place holders and either channel can be configured to measure voltage or current. For example, both channels can be used to monitor sensors with 4-20 mA output.
3. Select a channel name and then click the Configure button to open the Channel Configuration dialog.
NOTE: You can also access the Channel Configuration dialog from the Launch window. In the Channels to Log section, double-click the module/port name to expand it, click the channel name to select it, and
click the Configure button.
The Configure Channel Dialog appears.
4. Change any relevant configurable parameters.
5. Save the Configuration (Optional).
6. To send the currently displayed configuration to the module/port, click Configure.
The module will remain in this configuration until you send it a different configuration.
HOBO U30/NRC - 18 - User’s Manual
Launching the HOBO U30/NRC
1. Click the Launch icon on the toolbar.
The Launch Logger window appears.
Figure 9: Launch Window
2. Complete fields as required.
Description: Enter a description if desired.
Channels to Log: Make sure all of the sensors connected to the logger are visible in the Channels to Log pane.
Logging Interval: Choose a logging interval of 10 seconds so that your test will yield enough data to analyze. When you re-launch the logger in the field, you will change this to your desired value for deployment.
Launch Options: Select Now.
Utilities: Use any utilities as required. For information on configuring alarms for the U30/NRC, see Configuring Alarms on page 19. For information on Data Assistants and other utilities see the HOBOware User’s Guide.
3. Click Launch.
The “logging ok” light on the logger should blink every two seconds during logging.
HOBO U30/NRC - 19 - User’s Manual
Configuring Alarms on the U30/NRC
Use the Alarms dialog in HOBOware Pro to control the Relay Contact for the U30/NRC. Multiple alarm conditions can be configured for each channel to control the internal relay if an alarm is triggered.
Steps
1. Click Alarms on the Launch dialog, or select Device > Manage U30 > Configure U30 Alarms from the
Main Menu.
The Alarms dialog appears.
2. Click Add.
The Alarm Configuration dialog appears.
3. Configure options as required.
4. Click OK.
The Alarms dialog re-appears.
5. Click Set to send the configuration to the logger.
HOBO U30/NRC - 20 - User’s Manual
Alarms Dialog for the U30 Station
This topic describes the Alarms dialog for the HOBO U30/NRC.
Figure 10: Alarms Dialog for the U30 Station
1. Channels
This section includes all of the channels that support alarms. Select a channel and click Add to configure an alarm.
2. Alarms: This section includes all of the alarms that have been configured.
3. Relay Contacts
Select if the relay is Normally Open or Normally Closed. This only applies if the Alarm Action (configured in the Alarm Configuration dialog) is set to Activate Relay or Deactivate Relay.
4. Close Relay
To test the relay alarm function, click the Close Relay/Open Relay button.
5. Help: Click Help to open the Help topic for this dialog.
6. Add: Click Add to open the Alarm Configuration dialog and configure an alarm.
7. Edit: Click Edit to open the Alarm Configuration dialog and edit an existing alarm.
8. Remove: Click Remove to remove the selected alarm.
9. Relay Pulse Width
This sets the duration of the Relay Pulse when the Alarm Action is set to Pulse Relay. The default is 1 second.
10. Set: Click Set to send the alarm configuration to the logger.
11. Cancel: Click Cancel to cancel any entries you have made and return to the Launch window.
HOBO U30/NRC - 21 - User’s Manual
Alarm Configuration Dialog for the U30/NRC
This topic describes the Alarm Configuration dialog. Use this dialog to configure alarm thresholds and actions. You access this dialog from the Alarms dialog.
Figure 11: Alarm Configuration Dialog for the U30/NRC
1. Alarm Values
Set the Alarm high/low threshold and the number of samples.
Select the check box for the High Alarm and/or the Low Alarm. Enter an alarm in the box(es) or use the sliders. If you enter values manually, the software may adjust them slightly to the nearest values supported by the logger.
If only a high value is entered, the alarm will trigger if the reading exceeds that value. If only a low value is entered, the alarm will trigger if the reading is below that value. If both high and low are entered, the alarm will trigger if the reading falls outside of that range.
You can also set the number of samples that must be displayed before the alarm will be triggered. The sample period is whatever you have configured as the sample rate on the logger.
Note: To avoid unintended activation of the relay contact, set the number of samples to allow for anticipated breaches of the alarm threshold. If the measurement is still out of range when the number of samples is reached, the relay contact will be activated.
2. Alarm Action
Select an action to occur when the alarm is triggered: Activate Relay (Open/Close), Deactivate, Pulse, Toggle, Open, Close.
By default, the relay is deactivated when the alarm clears. To disable this, uncheck the box next to Deactivate on Alarm Clearing.
3. Help: Click Help to open the Help for this dialog.
4. Number of Samples: See Alarm Values above.
5. OK: Click OK to return to the Alarms dialog.
6. Cancel: Click Cancel to cancel all entries and return to the Alarms dialog.
HOBO U30/NRC - 22 - User’s Manual
INSTALLING THE HOBO U30 STATION IN THE FIELD
Field Installation Procedure
Tools Required
Before you head into the field, refer to the Items Required for Installation topic on page 59 to make sure you have the necessary tools and equipment.
Steps
This procedure assumes that you have performed the preliminary hardware setup and configuration and have performed a pre-deployment test.
1. Mount the HOBO U30 Station.
If you are mounting the HOBO U30 Station to a tripod, see Tripod Setup (page 62).
If you are mounting the HOBO U30 Station to a pole, see Mounting the U30 Station to a Pole (page 30).
2. Connect the grounding wire (optional) (page 24).
3. Plug all Smart Sensors into the HOBO U30 Station (if not already plugged in) making sure all cables are
routed through the cable access opening(s).
4. Connect Analog Sensors to the Analog Sensor Port, if applicable (page 15).
NOTE: It may be necessary to build-up the diameter third-party sensors with heat-shrink or electrical tape to match the diameter of the holes in the rubber cable channels and ensure a weather-tight seal.
5. Run the cable for a solar panel or AC adapter through the Primary Cable Slot, but do not connect it yet.
6. Connect equipment to the relay contact, if applicable (page 31).
7. Install the weatherproof cable channel (page 25).
8. Connect the battery (page 16).
9. Connect the solar panel or AC adapter (page 28).
10. Verify that the HOBO U30 Station powers up properly.
10. Close the door and snap the hinges shut on the HOBO U30 Station case.
Consider using padlocks to secure the case.
The system should begin operating as configured.
HOBO U30/NRC - 23 - User’s Manual
Connecting Grounding Wire
You should connect the grounding wire if you are using the Wind Speed (S-WSA-M003) and/or Wind Direction Smart Sensors (S-WDA-M003) or if you are installing the HOBO U30 Station on a roof or in a location with exposure to lightning.
The grounding wire may also be helpful in reducing sensor errors when installing the HOBO U30 Station near other radio or electrical equipment or antennas.
Insert the grounding wire through the opening and plug it into the ground connector. IMPORTANT: When installing the weatherproof cable channel in the next section, make sure to place the black portion of the grounding wire into the sensor cable groove.
Figure 12: Attaching Grounding Wire
HOBO U30/NRC - 24 - User’s Manual
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