implexx sap flow sensor
IX-SF30 or IX-SF60 for sap flow & stem water content
There are two models of the Implexx Sap Flow Sensor: Both models use the same sap flow method (Dual Method Approach, DMA) to estimate sap flow, sap flux density, and stem water content. The difference between the models is the length of the needles: 30 mm versus 60 mm. The 30 mm model is ideal for smaller trees, shrubs, herbaceous plants, or trees with a narrow sapwood depth. The 30 mm model is also ideal for juvenile plants and tree saplings. The 60 mm model is ideal for large trees or trees with a wide sapwood depth. Are you still unsure which model is best for your research? Do not hesitate to contact the scientists at Edaphic Scientific to discuss your project and further advice. The Implexx Sap Flow Sensors are low cost, highly accurate and reliable sensors for the measurement of sap flow, transpiration, and even stem water content, in plants. The Implexx Sap Flow Sensors are ideally suited for scientific researchers interested in plant water use, physiology, or hydrology research. The sensors provide the greatest flexibility for scientists needing to undertake field work or research in the glasshouse. Implexx Sap Flow Sensors utilise the SDI-12 output protocol which means it can connect to a range of data logger models and brands. The Implexx Sap Flow Sensor is currently used on loggers from the ES-LOG to Campbell Scientific to YDOC to DataTaker plus many LoRaWAN and NB-IoT systems. The Implexx Sap Flow Sensor can be used as a stand-alone device or in combination with other environmental sensors such as evaporation, VPD, solar radiation, soil moisture, or water potential. Edaphic Scientific can supply data logging equipment for you, or we can assist you in connecting the sensors to your existing data logger network. The Implexx Sap Flow Sensor is also unique in that stem water content can be measured simultaneously with sap flow or transpiration. Additional equipment is not required - stem water content can be measured with the same sensors that are measuring sap flow. The Implexx Sap Flow Sensor is currently being used by researchers, students and growers in many research projects around the globe including NASA, USDA, US Forest Service, University of California, University of Florida, Georgia State University, Chinese Academy of Sciences, University of Chile, and many institutions throughout Europe including France, Germany, Sweden, Finland, Poland and Greece. The Implexx Sap Flow Sensor was deployed in Biosphere 2, Arizona, USA, to measure the response of tropical rainforest trees to droughts. Click here for a case study from world leading researchers at TU Braunschweig, Germany, who are utilising The Implexx Sap Flow Sensor in combination with drones and isotope analysis in the savanna woodlands of Costa Rica. The Implexx Sap Flow Sensor is popular with many researchers and growers because it is calibrated, easy to install, and requires almost no ongoing maintenance. At Edaphic Scientific we want to work with you from the start of your project through to its completion. We can provide: Edaphic Scientific recognises the need for flexible and adaptable sensor and data logging solutions for experimental or environmental monitoring projects. You can connect the HPV sap flow sensors to our data logging systems, or we can assist you in connecting the sap flow sensors to your existing system. Data can be downloaded directly in the field from data loggers. Alternatively, data can be downloaded over the internet on your iPhone, iPad or desktop computer with the Sensori cloud-based, data management software solutions. Edaphic Scientific provides sap flow sensors with individual loggers or whole-wystem solutions with a centrally located data logger and additional equipment such as weather stations, soil moisture, water potential, carbon and nutrient monitoring. Data can be collected directly from logging units with a USB download cable or remotely, anywhere in the world, via the mobile phone network and an internet connection. Edaphic Scientific supplies a one-to-one sap flow sensor to data logger monitoring solution. The Implexx Sap Flow Sensor is compatible with a variety of data logger models and brands. The Implexx Sap Flow Sensor can be supported by any data logger that is compatible with the SDI-12 protocol. The ES-LOG-0 System provided by Edaphic Scientific is ideal for projects and installations where only one, or a few, sensors are required. The ES-LOG-0 consists of a low-cost data logger with a built-in modem. It can support one, or several, Implexx Sap Flow Sensors with the option to connect additional sensors such as soil moisture, air temperature, relative humidity or rain gauges. The individual sap flow data loggers are ideal for: Edaphic Scientific can supply multiple sap flow sensors all connected to a single, centrally located data logging system, with multiplexers, power supply and environmentally protective housing. Additional parameters can be added to the system for the monitoring of meteorological variables, soil moisture and water potential Edaphic Scientific can supply a monitoring system that is completely pre-programmed, pre-configured and ready to be installed. We can also provide assistance with field installation and training of staff and students. The Implexx Sap Flow Sensor has a calibrated output for whole tree sap flow. However, many scientists and researchers want to view the raw data and analyse their own data. The Implexx Sap Flow Sensor also outputs all the raw data from a measurement cycle. These raw data can be analysed by the researcher as required. Alternatively, a free Excel file is supplied with the sensors that uses published conventions to convert raw temperature data into heat velocity, sap flux density and sap flow. Sap flow sensors are relatively easy to install in trees – particularly with some practice. Edaphic Scientific can provide training for you on correct approach to sap flow sensor installation. Along with your sap flow sensors, we provide additional items for sensor installation including drill guide, drill bits and grafting wax. IMPLEXX-SF-IK Installation Kit contains everything that is required to install the Implexx Sap Flow Sensor onto a tree including drill, drill guide, drill bits (pack of 10), straps, and grease. IMPLEXX-SF-TP Kit contains additional items that are required to measure basic tree properties including trunk diameter, a stem borer for sapwood depth and sapwood fresh volume, a high precision balance to measure sapwood fresh weight and dry weight, and a set of calipers. Below is a YouTube video demonstrating how to install the Implexx Sap Flow Sensor:
overview
IX-SF30 or IX-SF60 - which model is more suitable?
low cost sensors to maximize research outcomes
who is using the Implexx Sap Flow Sensor?
heat pulse velocity sap flow sensors design
Edaphic Scientific’s capabilities
advanced data collection and management solutions
individual data loggers
whole-system monitoring solutions
free software
sap flow sensor installation
specifications
feature
specification
Measurement Principle
Heat Pulse Velocity | Dual Method Approach (DMA) | Heat Ratio (HRM - Slow Rates of Flow Method) | Tmax
Measurement Range
-1000 to +1000 cm/hr heat velocity
The sensor measures the entire observable range of sap flow in plants including reverse (negative) flow, zero flow, slow flow, and high flow.
Accuracy
±0.01 cm/hr heat velocity
Resolution
0.001 cm/hr heat velocity
Needle Dimensions (including sleeves)
IX-SF30: 30 x 1.8 mm
IX-SF60: 60 x 1.8 mm
Position of Thermistors
IX-SF30: 10 and 20 mm from white body
IX-SF60: 10, 20, 30, 40 and 50 mm from white body
Distance Between Needles
8 mm
Epoxy Body Dimensions
40 x 16 mm
Needle Materials
316 marine grade stainless steel
Temperature Range
-20 to +70 °C
Response time and Resolution
200 milliseconds
Heater Resistance
39 ohms (typical)
Power Input
12 VDC
Power Consumption
IX-SF30: Idle: 4 mA; Measurement Cycle: 0.4 mAhr.
IX-SF60: Idle: 4 mA; Measurement Cycle: 0.7 mAhr.
Sensor Output
SDI-12 (ver 1.4)
Cable Length
5m (standard) | 60m (maximum)
Warranty
1 year
manual & docs
datasheet & specifications
manuals
guides and application notes
related products