Dytran Model 3683C ultrahigh-temperature triaxial accelerometer

Friday, 24 April, 2020 | Supplied by: Metromatics Pty Ltd

Dytran Instruments has introduced Model 3683C — a charge mode, triaxial, case-isolated accelerometer that operates at up 538°C and can survive temperature excursions up to 593°C. The product is suitable for vibration monitoring of components in ultrahigh-temperature environments. Typical uses include gas turbine testing, power plant commissioning, exhaust manifold testing, turbocharger testing and brake rotor testing.

Characterised by its small size and low weight of 65 g, the product does not mass load test structures and can be used in situations where vertical space is limited. It features a ground-isolated triaxial design that eliminates the need for using three separate single-axis accelerometers typically mounted on a bulky triaxial mounting block.

The model features a hermetically sealed housing and Dytran’s Silver Window technology for operation at high temperatures. The ‘Silver Window’ on top of the accelerometer housing allows diffused oxygen molecules to pass through at high temperatures, replenishing oxygen to the piezoelectric crystals while maintaining the integrity of the hermetic seal. This is said to ensure continued high-temperature operation with minimal loss of piezoelectric crystal insulation resistance due to oxygen deprivation.

Available with a sensitivity of 1–2 pC/g, the product features a centre thru-hole design for 360° cable orientation. It can be easily installed using a 10–32 mounting screw and has two lock-wire holes for securing the sensor to the structure. The company offers straight-line or 90° 10–32 hardline cables to mate with three top connectors as well as charge amplifiers that support the user’s application configurations.

Online: www.metromatics.com.au
Phone: 07 3868 4255
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