Product Announcement from Leister USA

Improving Gas Sensor Ruggedness -Image

Portable and Handheld Instruments can be subjected to a lot of physical abuses.  Fixed gas sensing instruments will also be subject to structure borne vibrations and potentially shock during transport.

Sometimes infrared sources can fail as a result of a shock.  Sometimes a shock or vibration will change the IR source’s optical alignment to the detector thereby requiring a re-calibration of the gas sensor.

Leister’s Solid-state IR sources are very rugged.  They recently passed shock and vibration testing to DIN EN 60721-3-7 (IEC 721-3-7), a standard for handheld electronics.

The Shock Test is defined as:

Modus:                        half sine bumps

Amplitude:                   10 g, 20 g, 50 g, 100 g

Shock duration:           6 ms

Quantity:                      10 shocks for each x-, y- and z-axis in positive and negative direction for all amplitudes. This makes all together 240 shocks per sample.

 The Vibration Test is defined as:

 Frequency range:        2 Hz – 500 Hz, crossover frequency 26 Hz

Amplitude:                   7.5 mm below crossover frequency, 20 g above

Rate of change:           1 Octave/min

Quantity:                      20 cycles for all three directions in space

 
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