Leak Detection Safety Kit Product Data Sheet
Leak Detection Safety Kit
Mountable Gas Sensors
The leak detection safety kit includes multiple mountable sensors equipped with audible and visual alarms, alerting researchers when a leak is detected. The sensors are factory calibrated and set to 10% of the lowest explosive limit (LEL) of methane, allowing time for a response to a problem before explosive levels are reached. This setting also allows the sensors to detect leaks in challenging environments, such as spaces with high air exchange rates, or spaces in which close placement of the sensors to the potential leak points is not possible. The handheld detectors can be used in conjunction with the mounted sensors to detect and locate the source of any gas leak. Sensors can be linked to local alarm systems or to other safety devices.
As a general note, one sensor should be placed at or near each primary system seal. For typical CVD systems using quartz tubes sealed at both ends, this placement would require at least two sensors for each system. Additional recommended locations include combustible gas cylinder storage, and at or near splices in plumbing. We offer a variety of configurations for our leak detection safety kit from which to match the needs of your facility.
| The mountable sensors can detect numerous gases | |||
| Acetone | Ethanol | Hydrogen | Pentane |
| Acetylene | Ethyl acetate | Methane | Propane |
| Benzene | Ethyl chloride | Methanol | Propanol |
| Butadiene | Ethyl ether | Methyl acetate | Propylene |
| Butane | Ethylene | Methyl chloride | Toluene |
| Butylenes | Ethylene chloride | Methyl ether | Toluene |
| Decane | Freon | Methyl ethyl ketone | Trichloro ethane |
| Diethylamine | Gasoline | Methylene chloride | Vinyl chloride |
| Dimethylamine | Heptane | Natural gas | |
| Ethane | Hexane | Octane | |
Sensors can be mounted using the supplied hook-and-loop patches or mounting screws. Templates and hardware are provided for use of mounting screws. Mountable sensors are powered by 7.5 VDC to 12 VDC, and are supplied with AC adapters for 9 V operation.
- Specifications of Mountable Gas Sensors
- Sensor type - Tin dioxide (semiconductor)
- Sensor life - Approximately 5 years
- Lower detection limit - 50 ppm/ 0.1% LEL (methane)
- Upper detection limit - None
- Response time - T90 < 10 seconds
- Alarm point - 10% LEL methane (user adjustable)
- Alarm accuracy - ± 5% LEL methane/propane
- Mechanical shock - ~1 m (3') drop onto concrete
- Dimensions - Dimensions - 2.6" × 2.1" × 1.7"
- Weight – 50 g (~1.5 oz.)
- Power - 7.5 VDC to 12 VDC, ~100 mA
- Safety rating - Non-incendiary; not for use in hazardous locations
- 110 VAC adapter included with 6 foot power cord
Portable Gas Sensor
The handheld leak detector can sense combustible vapors for gases often used as feedstock or carrier gases for nanowire and carbon nanotube fabrication. With the handheld leak detector, improper seals and potential safety issues can be immediately discovered. Leak detection is made even more convenient with a 16" flexible probe which permits a total reach of two feet. Areas around metal fittings, seals between metal and quartz, and other interfaces can be easily probed for the presence of gas leaks.
| The portable gas sensor can detect combustible vapors for the following gases | |||
| Acetone | Ethanol | Iso-butane | Propane |
| Acetylene | Ethylene | Methane | Propylene |
| Ammonia | Gasoline | Methanol | Xylene |
| Benzene | Hexane | Methyl ether | |
| Butane | Hydrogen | Natural gas | |
| Ethane | Hydrogen sulfide | Pentane | |
Each detector is sensitive and is tested to detection limits of 5 ppm of methane and 2 ppm of propane. The sensitivity and volume levels are easily adjustable and response time is almost instantaneous. Detectors are powered by four AA batteries which allow 20 hours of continuous use. A low-battery indicator notifies the user when battery replacement is needed.
- Specifications of Portable Gas Sensors
- Sensitivity - 5 ppm methane, 2 ppm propane
- Power supply - Four AA batteries
- Operating temperature range - 0°C to 40.5°C (32°F to 105°F)
- Battery life - 20 hours of continuous use
- Warm up time - < 30 seconds
- Weight - 0.35 kg (~12.3 oz.)
- Dimensions - 20.32 cm × 6.35 cm × 5.08 cm (8" × 2.5" × 2")
- Probe length - 16"
- Total reach - 61 cm (~24")
- Includes - Holster with belt clip, four AA alkaline batteries
Hand-held Vacuum Pump
This hand-held pump can produce vacuum or pressure at the flip of a switch and is useful for checking seals to determine whether low pressure is maintained after evacuation. This pump provides an easy way to verify quality seals, which is especially important for interfaces between quartz and metal. The hand pump can also be used to activate the Atomate LeakProof Seal, which is an ideal seal for the quartz-to-metal interfaces commonly used on CVD systems. Almost any part or system that requires proper sealing to operate can be tested with this pump, either with vacuum or pressure. It is easy to use, accurate, and versatile.
The hand pump is constructed of a die cast zinc alloy and has a compound gauge for easily reading vacuum or pressure without having to change tubing or ports. The gauge can be used for pressure ranges between 100 kPa vacuum and 200 kPa pressure. The maximum vacuum at sea level is approximately 77 kPa to 85 kPa and the maximum pressure at sea level is no less than 200 kPa. The pump includes two 61 cm (24") lengths of 0.64 cm (¼") tubing and more than 10 adapters.
- Contents of Hand-help Pump Kit
- Vacuum/ pressure handheld pump
- Two ~61 cm (24") lengths of ~0.64 cm (¼") ID tubing
- 12 colored vacuum plugs
- 3 short tubing segments for adapters
