Improving Gas Sensor Ruggedness
Product Announcement from Leister USA
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