Onset HOBO Micro Station User manual

HOBO® Micro Station (H21-002) Quick Start
17595-A MAN-H21-002-QSG
Setting up the Logger
1. Insert the four AA alkaline or lithium batteries and place
the battery strap on the batteries.
2. With a crescent wrench, remove the dome nut from the
stuffing gland in the sensor port.
3. Push the slit insert out from the inside of case. You may
need to push the slit insert out using a pen (capped end),
pencil (eraser end), or other blunt instrument.
4. Some sensors have an anti-snag device on the connector
as shown below. If any of your sensors has this device,
check that the connector fits through the stuffing gland.
If the connector does not fit through the stuffing gland,
you will need to trim the anti-snag device with a knife so
that the connector looks like the one below.
5. Insert the sensor connectors through the dome nut. The
threaded side of the dome nut should be facing towards
the connector. Then, slide the cables through the stuffing
gland and through the hole in the case. Push the cables
into the slit insert.
Note: The electronics on some older temperature sensors
are housed in a tube that is close to the sensor connector.
If you have any of these sensors, be sure to insert them
first because they will need more room inside the logger.
Adjust the sensor as needed so that the tube with the
electronics fits inside the logger without too much
unnecessary bending of the cable.
6. Plug the sensors into the logger. Adjust the cable length as
necessary so there isn’t excess cable inside the case.
7. If you are using fewer than four sensors, add the o-ring
cord(s) to plug the empty hole(s) in the slit insert.
8. Apply some silicone grease to the slits on the insert.
9. Push the slit insert back into the stuffing gland. Pushing
the slit insert in at a slight angle and with a slight twist may
help it slide in more smoothly.
10. Screw the dome nut onto the stuffing gland, tighten by
hand, and then an additional ½ to ¾ turn with an
adjustable wrench. The dome nut must be snug, but
shouldn’t be overtightened.
11. From the back side of the stuffing gland, fill the void inside
with silicone grease from the package.
12. Remove the desiccant pack from its foil pouch and place
inside the logger enclosure to minimize internal
condensation.
13. Apply silicone grease to the outside rim of the case where
the cover meets up with the housing. The grease should be
applied sparingly in this location.
14. Screw the clear cover back onto the case. Use a Phillips-
head screwdriver to tighten the four cover screws.
Anti-snag device on some
external sensor connectors
Anti-snag device
removed from the
external sensor
connector
Dome nut
Stuffing gland on sensor port
Dome nut
Slit insert
Sensor cable and
connector
Stuffing gland on sensor port
Stuffing gland
slit insert
Battery strap
O-ring cord to fill
empty holes

1-800-LOGGERS (564-4377) • 508-759-9500
www.onsetcomp.com • [e-mail]
© 2014 Onset Computer Corporation. All rights reserved. Onset, HOBO, and HOBOware are
trademarks or registered trademarks of Onset Computer Corporation. All other trademarks are the
property of their respective companies.
17595-A MAN-H21-002-QSG
Logger Components
The following diagram explains the key parts of the Micro Station.
Connecting the Logger to the Computer
1. Use a slotted screwdriver or small coin to unscrew the
data access port cover.
2. Insert the PC interface cable through the data access port
and plug it into the communications port on the logger.
If the computer does not have a serial port, you will need to use
a Keyspan adapter (ADAP-SER-USB). Follow these instructions:
1. Install the Keyspan USB-to-serial adapter software from
the CD included with the device or download the software
from the Support tab at:
http://www.tripplite.com/en/products/model.cfm?txtMo
delID=3914
Follow the Keyspan installation instructions.
2. Open the Keyspan USB Serial Adapter Assistant and the
note the COM number assigned to the device.
3. Open HOBOware®. From the File menu on Windows or
from the HOBOware menu on Mac, select Preferences.
Under Communications, click the arrow to open Device
Types. Make sure “USB and serial devices” is selected.
Click the arrow to open Serial Ports. Select the COM port
noted in Step 2 (in this example, it is COM4). Note: On a
Mac, the Keyspan adapter will be listed as something
similar to “USA19H1d1P1.1.”
4. Click OK in the Preferences window to save these settings.
HOBOware should now be configured to work with the
Keyspan USB-to-serial adapter.
Launching the Logger
1. Connect the logger to the computer and open HOBOware.
2. Select Launch from the Device menu or click the Launch
icon on the toolbar to open the Launch Logger window.
3. Make sure all the sensors you plugged in are visible in the
Launch Logger window and select each sensor.
4. Select a logging interval, when to start logging, and any
other launch settings as desired.
5. Click the Start button when you are finished choosing the
launch settings. Note that the text on the Start button
varies depending on when you chose logging to begin.
Remove the cable from the communications port and
screw the data access port cover back on.
Reading Out
1. Connect the logger to the computer and open HOBOware.
2. Select Readout from the Device menu or click the Readout
icon on the toolbar.
3. After the readout is complete, you can plot the data.
Remove the cable from the communications port and
screw the data access port cover back on.
Refer to www.onsetcomp.com for information on sensors that
can be used with this logger. For help with HOBOware, refer to
the HOBOware User’s Guide at:
http://www.onsetcomp.com/support/manuals/bhw-pro-cd_12730
For additional details on deploying and mounting the logger,
refer to the HOBO Micro Station User’s Guide at:
http://www.onsetcomp.com/support/manuals/h21-002_7645
Data access port cover
Cable plugged into
communications
port
Status lights
Sensor
p
ort
Data access port
Communications
port; used for
connecting to a
computer
Start logging
button; use
when. Press
and hold until
all lights flash
if logger is
configured for
a push button
start
Battery holder,
with batteries
installed and
battery strap in
place
Sensor
connection
ports, where up
to four sensors
can be plugged
in
External
connection
access port
Connector for
grounding wire
and remote
communications
(optional)
Gore™ Vent
and silicone
gasket