Columbia Research 765M30

“The Models 765M30 and 765M35 High Intensity Acoustic Sensors (Microphones) are designed for the measurement of gas-borne sound in industrial applications. These sensors have been constructed for use in corrosive environments that are compatible with the type 316 stainless steel diaphragm. The electrically-isolated, coaxial stainless steel hermetic connector, when combined with the all-welded construction, provides a true hermetic seal. Electrically, the Models 765M30 and 765M35 comprise sensing elements of piezoceramic material in a balanced and floating configuration to provide enhanced rejection of electrical noise associated with many industrial environments. An internal accelerometer provides cancellation of the acoustic element’s inherent acceleration sensitivity. Optimum performance is achieved
when used with a true differential input amplifier.”

Specifications:

• Condition: New
• Type: High Intensity Acoustic Sensor microphone, flame sensor
• Make: Columbia Research Laboratories, John Zink
• Model:765M30
• Serial: 690
• Freq: 2Hz to 8000Hz
• Charge Sens: 2100 +/- 300pC/psi
• Range: 0.28 x 10-4 to 10 psi (191 dB SPL Max.)
• Vib Sens: 1.0 pC/g Typical, 2.0 pC/g Max.
• Temp: -23C to 260C
• Accessories: Cable 3m
• Packaging: Original
• Weight: 0.5Kg

Replacement price on this unit is approximately AUD$

This unit is sold with a 30 Day Warranty.