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SBE 37 MicroCAT Feature Comparisons

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Sea-Bird manufactures a number of instruments within our MicroCAT family. All MicroCATs:

IDO MicroCATs include a membrane-type Dissolved Oxygen sensor. ODO MicroCATs, introduced in 2012, include an Optical Dissolved Oxygen sensor.

Other features vary:

Sea-Bird
Model Number		 Additional Included Sensors Pump * Power Communication Real-Time Data Minimum Sampling Interval
Internal External
37-SMP-ODO Optical Dissolved Oxygen √ √ √ RS-232, RS-485, or SDI-12 √ 10 sec
37-SMP-IDO Dissolved Oxygen (membrane type) √ √ √ RS-232 or RS-485 √ 10 sec
37-SMP   √ √ √ RS-232, RS-485, or SDI-12 √ 6 sec
37-SM     √ √ RS-232 or RS-485 √ 6 sec
37-SIP-ODO (coming soon) Optical Dissolved Oxygen √   √ RS-232 or RS-485 √ 1.0 sec
37-SIP-IDO Dissolved Oxygen (membrane type) √   √ RS-232 or RS-485 √ 1.0 sec
37-SIP   √   √ RS-232 or RS-485 √ 1.0 - 1.5 sec ***
37-SI       √ RS-232 or RS-485 √ 1.0 - 1.5 sec ***
37-IMP-ODO Optical Dissolved Oxygen √ √   Inductive Modem **** √ ** 10 sec
37-IMP-IDO Dissolved Oxygen (membrane type) √ √   Inductive Modem **** √ ** 10 sec
37-IMP   √ √   Inductive Modem **** √ ** 6 sec
37-IM     √   Inductive Modem **** √ ** 6 sec
* Integral pump provides improved conductivity and dissolved oxygen (if applicable) response, and conductivity fouling protection.
** Inductive Modem MicroCATs do not automatically transmit real-time data; controller must query for data.
*** Minimum sampling interval 1.0 second without optional pressure sensor, 1.5 seconds with optional pressure sensor.
**** See Application Note 92 for a description of Inductive Modem telemetry.

 

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Specifications are subject to change without notice.

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