Campbell Scientific 229-L, Heat Dissipation Potential Sensor - Tested

Description: Campbell Scientific 229-LHeat Dissipation Matric Potential Sensor OverviewThe 229 is a sensor that measures soil water potential from -10 to -2500 kPa. It requires that you connect it to either the CE4 or CE8 current excitation module. A Campbell Scientific data logger controls the current excitation module, measures the sensor, and calculates soil water matric potential. Benefits and FeaturesCompatible with most Campbell Scientific data loggersMeasures a wide range of matric potentialMeasurements not affected by salts in the soilLong lasting, with no maintenance requiredCompatible with AM16/32-series multiplexers, allowing measurement of multiple sensors Detailed Description:The 229 Water Matric Potential Sensor consists of a heating element and thermocouple placed in epoxy in a hypodermic needle, which is encased in a porous ceramic matrix. This unit comes with 20' of cable. To calculate soil water matric potential, a CE4 or CE8 current excitation module applies a 50 mA current to the 229's heating element, and the 229's thermocouple measures the temperature rise. The magnitude of the temperature rise varies according to the amount of water in the porous ceramic matrix, which changes as the surrounding soil wets and dries. Soil water matric potential is determined by applying a second-order polynomial equation to the temperature rise. Users must individually calibrate each of their 229 sensors in the soil type in which the sensors will reside. A reference temperature measurement is required for the 229’s thermocouple measurement. Options for measuring the reference temperature include:Thermistor built into the CR6, CR800, CR850, CR1000, CR3000, or CR5000 wiring panelPRT built into the wiring panel of the CR9050 or CR9051E input module for the CR9000X Measurement and Control System SpecificationsOperating Temperature Range-5° to +30°CNormal Environmental Temperature Range-40° to +70°CMeasurement Range-10 to -2500 kPaMeasurement Time30 s (typical)Thermocouple TypeCopper/constantan (type T)Heater Resistance~34 ΩResolution~1 kPa (at matric potentials < -100 kPa)Diameter1.5 cm (0.6 in.)Length6.0 cm (2.4 in.)Cable Weight~23 g/m (0.25 oz/ft)Sensor Weight10 g (0.35 oz) Shipping label printed within 8 hours of receipt of payment or the next business day.Shipping service at discretion of sellerWe are limited to the schedules and holidays hours of the carriers we use Thank you for considering our productsTake a moment to read the following to ensure a smooth experience 1. Descriptions:Colors can vary and provided dimensions are approximate, if either are critical, please message us so we can confirm. 2. Condition:Review the provided photos carefully. We will usually call attention to any damage, but If you have concerns about an item's condition, please message us so we can confirm. 3. Shipping and Handling:In most cases a trackable shipping label is produced within hours of a sale. Once an item leaves our hands, we can't control delays with the carrier. Please track your package and let us know if any issues arise. 4. Returns and Exchanges:Unless otherwise stated within a listing we accept returns within 30 days of the sale. Contact us before returning an item. Returns must be in arrival condition and shipping costs are the buyer's responsibility, except in cases of carrier damage. 5. Customer Satisfaction:Your satisfaction is our priority. If you encounter an issue with your order, please contact us before leaving feedback. We will work to resolve any problems promptly. 6. Communication:eBay's messaging system is prompt and we typically respond within hours of receipt. We try to keep it personal, so if you have a special circumstance or need, let us know, we will do what we can to accommodate. We look forward to your business

Price: 49.99 USD

Location: Waynesville, North Carolina

End Time: 2024-10-25T02:30:08.000Z

Shipping Cost: 9.99 USD