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HOBO TidbiT MX Temp 400 (MX2203) and Temp 5000 (MX2204) Logger Manual 

1-508-759-9500 (U.S. and International) 8 

www.onsetcomp.com 

1-800-LOGGERS (U.S. only) 

4.

 

Remove the battery and place a new one in the battery 
holder, positive side facing up. 

5.

 

Inspect the O-ring on the battery cover. Make sure it is 
clean and seated properly. Remove any dirt, lint, hair, or 
debris from the O-ring. If the O-ring has any cracks or tears, 
replace it as follows: 

a.

 

Spread a small dot of silicone-based grease on the O-
ring with your fingers, making sure the entire O-ring 
surface is completely covered in grease. 

b.

 

Place the O-ring on the cover and clean off any debris. 
Make sure the O-ring is fully seated and level in the 
groove and not pinched or twisted. This is necessary to 
maintain a waterproof seal. 

6.

 

Place the cover back on the logger, lining up the unlock icon 
(if applicable) with the double-ridge on the side of the 
logger case (shown in step 3). Make sure the cover is level 
as it is placed on the logger case to ensure the battery 
terminal maintains its proper position. 

 

Battery Cover Placement Top View 

 

 

7.

 

While pushing down on the cover, rotate it clockwise until 
the tab is aligned with the double-ridge in the logger case. If 
your cover has lock icons, then rotate it so that the icon 
moves from the unlocked to locked position. When the 
cover is properly positioned, the tab and the locked icon (if 
applicable) will be aligned with the double-ridge in the 
logger as shown.  

 

8.

 

Place the logger back in the protective boot, making sure 
the double-ridge in the logger case slides into the groove on 
the inside of the boot. 

 

 

Note:

 MX2203 logger is shown in the example; the groove in 

the boot on an MX2204 logger is in a slightly different location. 

 

WARNING:

 Do not cut open, incinerate, heat above 85°C 

(185°F), or recharge the lithium battery. The battery may 
explode if the logger is exposed to extreme heat or conditions 
that could damage or destroy the battery case. Do not dispose 
of the logger or battery in fire. Do not expose the contents of 
the battery to water. Dispose of the battery according to local 
regulations for lithium batteries.

 

 

 

 

 

 

 

 

 

 

 

Cover aligned properly 

Place cover 
straight down and 
level on the back 
of the logger 

Battery Cover Side View, 

Incorrect Assembly 

Battery Cover Side View, 

Correct Assembly 

Make sure this double-ridge on the 
logger slides into this groove on 
the boot 

Summary of Contents for TidbiT MX Temp 400

Page 1: ...20 to 70 C 4 to 158 F Buoyancy Fresh Water MX2203 3 1 g 0 11 oz negative MX2204 7 6 g 0 27 oz negative Waterproof MX2203 To 122 m 400 ft MX2204 To 1 524 m 5 000 ft Water Detection Water conductivity...

Page 2: ...ubstitute for the built in button see Deploying and Mounting the Logger Water Detection Screws These two screws can detect the presence of water This allows you to configure the logger in power saving...

Page 3: ...on the logger A logger readout is completed automatically at the beginning of the firmware update process Important Before updating the firmware on the logger check the remaining battery level and mak...

Page 4: ...ed 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...

Page 5: ...a 10 minute logging interval and logged a data point at 9 05 Then the high limit was surpassed and burst logging began at 9 06 Burst logging then continued until 9 12 when the sensor reading fell bac...

Page 6: ...Bluetooth Always On continue to step 3 If the logger is configured with Bluetooth Always Off press the button on the logger for 1 second to wake it up If the logger is configured with Bluetooth Water...

Page 7: ...cessary Do not use harsh chemicals solvents or abrasives Periodically inspect the logger for biofouling if it is deployed in water and clean as described above Periodically inspect the O ring on the i...

Page 8: ...iew 7 While pushing down on the cover rotate it clockwise until the tab is aligned with the double ridge in the logger case If your cover has lock icons then rotate it so that the icon moves from the...

Page 9: ...ation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technici...

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