2035-B

Accessory

Light, Temperature and Humidity Sensing Leaf Clip Holder

The leaf clip 2035-B has been devised to record leaf temperature, light intensities at sample level and air humidity. The clip measures photosynthetically active radiation (PAR) by an LS-C Mini Quantum Sensor, a NiCr-Ni thermocouple records leaf temperature, and a capacitive type, temperature-corrected humidity sensor measures relative humidity of air. Calibration factors of PAR and temperature sensors are stored on the internal memory of the leaf clip 2035-B. A second PAR sensor can be connected to the leaf clip. Measured data are sent as digital signals to the MINI-PAM-II. To facilitate studies under field conditions, fluorescence measurements can be triggered by pushing the control button of the leaf clip 2035-B.

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MINI-PAM-II
Portable PAM Fluorometer for Field and Laboratory
Water
Field
Laboratory
Design
Consisting of a port to insert the MINI-PAM/F Fiberoptics and a clip to hold the sample. A circular 1 cm diameter hole in the upper clip part defines the measuring area. Standard distance between fiberoptics tip and measuring area is 8 mm. The port aligns the fiberoptics at an angle of 60° relative to the measuring plane. A mini quantum sensor is positioned on the sample level by a movable Perspex arm, a leaf temperature sensor is mounted below the sample within an up and down movable Plexiglas tube, and a humidity sensor is mounted at 3 cm distance from the sample. The electronics of the 2035-B unit store calibration factors of sensors. Saturation pulses can be triggered by remote trigger button. An input socket for an additional light sensor is provided
Mini quantum sensor
Sensor for selective PAR measurement with the spectral properties of the LS-C sensor, range 0 to 7000 μmol m-2 s-1, cosine-corrected for light incident at angles between -30° to +30° from surface normal
Thermocouple
Ni-CrNi, wire diameter 0.1 mm, -20 to +60 °C
Humidity sensor
Humidity and temperature sensing integrated circuit, 0 - 100% relative humidity
Power supply
MINI-PAM-II leaf clip socket (5 V/10 mA)
Cable length
110 cm
Dimensions
17 cm x 5.7 cm (max.) x 8 cm (max.) (L x W x H)
Weight
250 g (excluding cable)