SBE Launches SBE 39-Plus

The SBE 39-plus is an enhanced version of the popular SBE-39 with enhanced memory and reporting formats, more sample rate options and USB interface.

Description
The SBE 39plus is a high-accuracy temperature (pressure optional) recorder with internal battery pack and non-volatile memory for deployment at depths up to 10,500 meters. The 39plus is intended for moorings or other long-term, fixed-site applications, as well as deployments on nets, towed vehicles, or ROVs. Calibration coefficients are stored in EEPROM, allowing output in decimal or XML ASCII engineering units ((°C/°F and decibars or psi).
 
The thermistor, the same sensor used in the SBE16plus V2 SeaCAT  and 37 MicroCAT, has a long history of exceptional accuracy and stability; drift is typically less than 0.002 °C/year.

Summary:

• Next generation SBE 39 - faster sampling, more power and memory, but same housing and compatible output (39plus to 39 comparison)
• Temperature and Pressure (optional), at user-programmable intervals (0.5 sec to 6 hours).
• Internal memory and battery pack.
• Internal USB connector for fast upload.
• RS-232 serial interface with optional external connector.
• Depth to 600 meters (plastic) or 10,500 meters (titanium).
• Five-year limited warranty.

Two configurations are offered:

• Thermistor embedded in titanium end cap (25-sec time constant), for rugged conditions.
• External thermistor in pressure-protected sheath (0.5-sec time constant), for fast sampling.

The optional strain-gauge pressure sensor is available in eight ranges, from 20 to 7000 m. Compensation of temperature influence on pressure offset and scale is performed by the 39plus' CPU.