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TEMPERATURE RECORDING EQUIPMENT. TEMPERATURE RECORDING


Temperature recording equipment. Commercial sandblasting equipment. Construction equipment production rates.



Temperature Recording Equipment





temperature recording equipment














temperature recording equipment - Extech RH520A




Extech RH520A Humidity and Temperature Chart Recorder with RS-232 Computer Interface


Extech RH520A Humidity and Temperature Chart Recorder with RS-232 Computer Interface



Monitor and record temperature and humidity and generate warnings when conditions are outside limits. Easily configured and mounts on desk or wall to allow viewing of temperature and humidity trends with a date/time stamp. Measures humidity 10 to 95% and temperature -20° F to 140°F. LabView software calculates and graphs dewpoint, web bulb and GPP. Large dual graphical LCD display has adjustable vertical and horizontal TAC resolution. Internal memory holds 49,000 data points transferable to PC via RS-232 serial port. Detachable probe extends up to 1 meter. Audible and visual alarm with Hi/Low setpoints. Includes: Built-in stand, detachable probe with 3' cable, RS-232 cable to USB adaptor, LabView software, 100-240 VAC, 50/60 Hz adaptor, 3 AA batteries.










78% (9)





Greenpeace in Greenland




Greenpeace in Greenland





1The 'whirlpool' and crack at 80?57'28" N and 061?20'10" W on the Petermann glacier. Geophysicist Dr Richard Bates, of the Scottish Oceans Institute at the University of St. Andrews, takes 'casts' of tempearture pressure current and salinity. He is assisted by ice logistician Eric working on board the Greenpeace ship Arctic Sunrise in Petermann Fjord, northwest Greenland. Dr Bates makes casts -dropping a CTD probe (Conductivity Temp Depth) into the pool and pulling it back up at a slow speed.

The data recorded by the probe is later downloaded into computer software plotting accurate measurements of water temperature, salinity, turbidity (how turbulent the water is), current strength and direction in the pool, within the glacier. This will give a data set that describes the oceanic conditions at the time that the Petermann glacier disintegrates.

Dr Bates is part of a team of scientists on board the Arctic Sunrise during the 1st leg of Greenpeace's 3 month long Arctic Impacts expedition, to document the effects of climate change on the Arctic environment ahead of the Copenhagen summit which will be held in December 2009.











Greenpeace in Greenland




Greenpeace in Greenland





The 'whirlpool' and crack at 80?57'28" N and 061?20'10" W on the Petermann glacier. Geophysicist Dr Richard Bates, of the Scottish Oceans Institute at the University of St. Andrews, takes 'casts' of tempearture pressure current and salinity. He is assisted by ice logistician Eric working on board the Greenpeace ship Arctic Sunrise in Petermann Fjord, northwest Greenland. Dr Bates makes casts -dropping a CTD probe (Conductivity Temp Depth) into the pool and pulling it back up at a slow speed.

The data recorded by the probe is later downloaded into computer software plotting accurate measurements of water temperature, salinity, turbidity (how turbulent the water is), current strength and direction in the pool, within the glacier. This will give a data set that describes the oceanic conditions at the time that the Petermann glacier disintegrates.

Dr Bates is part of a team of scientists on board the Arctic Sunrise during the 1st leg of Greenpeace's 3 month long Arctic Impacts expedition, to document the effects of climate change on the Arctic environment ahead of the Copenhagen summit which will be held in December 2009.









temperature recording equipment








temperature recording equipment




Shure SM87A Vocal Microphone






The Shure SM87A microphone is a professional-quality, handheld condenser microphone for use in sound reinforcement, broadcasting, and studio recording installations. Its supercardioid polar pattern provides greater rejection of unwanted sound sources, making it ideal for miking individual instruments in a multi-microphone setting or for miking single sources in a reverberant or noisy environment. An integral three-stage wind and pop filter protects against wind and breath noise. Its built-in shock mount reduces stand and handling noise.

Designed for use in sound reinforcement, broadcasting, and studio recording installations, the Shure SM87A professional-quality, handheld condenser microphone is ideal for miking individual instruments in a multi-microphone setting or for miking single sources in a reverberant or noisy environment. Its supercardioid polar pattern provides greater rejection of unwanted sound sources, and an integral three-stage wind and pop filter protects against wind and breath noise. Its built-in shock mount reduces stand and handling noise.


The Shure SM87A vocal microphone.
Key Features
Highly directional supercardioid pickup pattern
Controlled low-frequency roll-off
Very low RF and magnetic hum susceptibility
Minimally affected by varying load impedance
Built-in wind and pop filter
Transducer element shock mounted
Rugged construction for outstanding reliability
Field-usable over a wide range of temperature and humidity conditions
Accepts a wide variety of phantom power sources, including DIN 45 596 voltages of 11 and 52 Vdc
Specifications
Cartridge Type: Condenser (electret bias)
Frequency Response: 50 to 20,000 Hz
Polar Pattern: Supercardioid
Output Impedance: Rated at 150 ohms (100 ohms actual +/- 20%); recommended minimum load impedance: 800 ohms
Sensitivity (at 1,000 Hz): Open Circuit Voltage: -52.5 dBV/Pa (2.4 mV); (1 Pa = 94 dB SPL)
Clipping Level (at 1,000 Hz): 1000 ohm Load: -6 dBV (0.5 V)
Maximum SPL (at 1,000 Hz): 140.5 dB (0.25% THD, 1000 ohm load)
Self-Noise (equivalent sound pressure level; measured with true rms voltmeter): 24 dB typical, A-weighted; 26 dB typical, weighted per DIN 45 405
Dynamic Range: 116.5 dB (maximum SPL to A-weighted noise level)
Signal-to-Noise Ratio: 70 dB at 94 dB SPL (IEC 651)* -- *S/N ratio is difference between 94 dB SPL and product's equivalent self noise (SPL A-weighted).
Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3.
Power: Phantom Supply Requirement: 11 to 52 Vdc, positive at both pins 2 and 3.
Current Drain: 1.0 to 1.2 mA
Connector: Three-pin (XLR) professional audio.
Case: Aluminum construction with steel grille and satin black finish.
Weight: 7 ounces


Frequency response.

Polar pattern.










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