HOBO TidbiT MX Temp 400 (MX2203) and Temp 5000 (MX2204) Logger Manual
1-508-759-9500 (U.S. and International) 4
www.onsetcomp.com
1-800-LOGGERS (U.S. only)
For example, select 30 days if you want the logger to
log data for 30 days after logging begins.
•
Stop When Memory Fills.
The logger continues
recording data until the memory is full.
9.
Tap Pause Options, then select Pause On Button Push to
specify that you can pause the logger by pressing its button
for 3 seconds.
10.
Tap Logging Mode. Select either Fixed or Burst logging.
With fixed logging, the logger records data for all enabled
sensors and/or selected statistics at the logging interval
selected (see
Statistics Logging
for details on choosing
statistics options). In burst mode, logging occurs at a
different interval when a specified condition is met. See
Burst Logging
for more information.
11.
Enable or disable Show LED. If Show LED is disabled, the
alarm and status LEDs on the logger are not illuminated
while logging (the alarm LED does not blink if an alarm
trips). You can temporarily turn on LEDs when Show LED is
disabled by pressing the button on the logger for 1 second.
12.
Select the power saving mode, which determines when the
logger advertises or regularly sends out a Bluetooth signal
for the phone, tablet, or computer to find via the app.
•
Bluetooth Always Off.
The logger advertises only during
logging when you press the button on the protective
boot (or place a magnet where the reed switch is located
if the logger is out of the protective boot). This wakes up
the logger when you need to connect to it. This option
uses the least battery power.
•
Bluetooth Off Water Detect.
The logger does not
advertise when the presence of water is detected. Once
the logger is removed from the water, advertising
automatically turns on, thereby not requiring you to push
a button (or use a magnet) to wake up the logger when
you need to connect to it. This option preserves some
battery power.
Note:
The logger checks for the presence
of water every 15 seconds when this is option is selected.
•
Bluetooth Always On.
The logger always advertises. You
never need to push a button (or use a magnet) to wake
up the logger. This option uses the most battery power.
13.
Set up alarms to trip when a sensor reading rises above or
falls below a specified value. See
Setting up Alarms
for
details on enabling sensor alarms.
14.
Tap Start to save the configuration settings and start
logging. Logging begins based on the settings you selected.
See
Deploying and Mounting the Logger
for details on
mounting and see
Reading Out the Logger
for details on
downloading.
Setting up Alarms
You can set up alarms for the logger so that if a sensor reading
rises above or falls below a specified value, the logger alarm
LED blinks and an alarm icon appears in the app. Alarms alert
you to problems so you can take corrective action.
To set an alarm:
1.
Tap Devices. If the logger was configured with Bluetooth
Always Off enabled, press the HOBOs button on the logger
to wake it up. If the logger was configured with Bluetooth
Off Water Detect and is currently underwater, remove it
from the water.
2.
Tap the logger tile to connect to it and tap Configure &
Start.
3.
Tap a sensor (tap the Enable Logging toggle if necessary).
4.
Tap Alarms to open that area of the screen.
5.
Select Low to have an alarm trip when the sensor reading
falls below the low alarm value. Enter a value to set the low
alarm.
6.
Select High to have an alarm trip when the sensor reading
rises above the high alarm value. Enter a value to set the
high alarm.
7.
For Duration, select how much time should elapse before
the alarm trips and select one of the following:
•
Cumulative. The alarm trips once the sensor reading is
out of the acceptable range for the selected duration any
time during logging. For example, if the high alarm is set
to 85°F and the duration is set to 30 minutes, then the
alarm trips once the sensor readings have been above
85°F for a total of 30 minutes since the logger was
configured.
•
Consecutive. The alarm trips once the sensor reading is
out of the acceptable range continuously for the selected
duration. For example, the high alarm is set to 85°F and
the duration is set to 30 minutes; the alarm trips only if
all sensor readings are 85°F or above for a continuous 30-
minute period.
8.
In the configuration settings, select one of the following
options to determine how to clear the alarm indicators:
•
Logger Reconfigured.
The alarm indication displays until
the next time the logger is reconfigured.
•
Sensor in Limits.
The alarm indication displays until the
sensor reading returns to the normal range between any
configured high and low alarm limits.
When an alarm trips, the logger alarm LED blinks every 4
seconds (unless Show LED is disabled), an alarm icon appears in
the app, and an Alarm Tripped event is logged. The alarm state
clears when the readings return to normal if you selected
Sensor in Limits in step 8. Otherwise, the alarm state remains in
place until the logger is reconfigured.
Notes:
•
The logger checks alarm limits at every logging interval.
For example, if the logging interval is set to 5 minutes,
the logger checks the sensor readings against your
configured high and low alarm setting every 5 minutes.
•
The actual values for the high and low alarm limits are set
to the closest value supported by the logger. For
example, the closest value to 85°F that the logger can
record is 84.990°F. In addition, alarms can trip or clear
when the sensor reading is within resolution
specifications.
•
When you download data from the logger, alarm events
can be displayed on the plot or in the data file. See
Logger Events
.
