It is an all too common paradox: you need to capture transient events at a high sample rate, but the events of interest are erratically spread over a long period. The OM-CP-PRTRANS pressure recorder can solve your problems. It samples up to 100 Hz (10 ms) but it will only trigger on pressure limits that you set beforehand. You can start the trigger on high or low thresholds and end the trigger after either a chosen number of samples, or when the signal crosses over your stop threshold. The device can record up to 255 events and take as many as 262,143 pressure samples. It also shows up to 32 samples of 'pre-trigger' data so that you can learn what caused the trigger in the first place.
The OM-CP-PRTRANS is a battery operated unit with a standard 1/4 NPT for easy coupling to your pressure systems. It is also completely submersible and the stainless steel sensor can measure the pressure of most common fluids and gases. The non-volatile memory will retain valuable data even if the user-replaceable battery becomes discharged. The OM-CP-PRTRANS is your solution to the transient pressure problem.
SPECIFICATIONS Pressure Sensor: Semiconductor strain gauge Calibrated Accuracy: 2% FSR, 0.25% @ 25°C typical Pressure Response Time: 0.1 ms (10 to 90% FSR) Repeatability: ±0.5% FSR; ±0.2% typical Adaptor: 1/4' male NPT or fully submersible Trigger Modes: Software programmable window size of bi-level start/stop triggers Start Time: Software programmable immediate start time or delay start up to 7 days in advance Real Time Recording: May be used with PC to monitor and record data in real time Memory: Up to 262,143 samples Number of Events: Up to 255 triggered events Pre-Trigger Size: Up to 32 samples Recording Interval: 1 reading every 10 ms to 1 every second Calibration: Digital calibration is available through software Calibration Date: Automatically recorded within device Power: 3.6 V lithium battery (included) Battery Life: 3 days continuous @ 10 ms sample rate Shelf Life: Up to 1 year when not in use Data Format: Date and time stamped, psia, psag, inches, feet, mmHg, bar, torr, kPa Computer Interface: PC serial or USB (interface cable required) 115,200 baud Software: XP SP3/Vista/7 and 8 (32-bit and 64-bit) Operating Environment: -40 to 80°C (-40 to 176°F) 0 to 100% RH non-condensing Dimensions: 163 mm x 32 mm L (6.4 x 1.25') Weight: 340 g (12 oz) Material: Stainless steel