Specifications for MICRO-PAM STAND-ALONE Configuration

All specifications are subject to change without prior notice.

Measuring Head MICRO-HEAD/3B

General Design

Housing: Polymer housing with optical block and fiber connector on one side, and a combined power line/RS485 socket on the opposite side

MICRO-HEAD/BK Leaf Clip: Consisting of 2 aluminum frames (3.5 x 2.5 cm), held together by magnet, 0.4 cm distance between sample plane of leaf clip and lightguide, angle between sample plane and optical light guide: 60°

Cables: RS 485 data/power cable, 10 m standard length, connecting MICRO-HEAD/3B and MICRO IB4 PC Interface Box. RS 485 adapter cable, 0.6 m long, to connect MICRO-HEAD/3B to optional PC Interface Box MONI IB4/LAN or to optional MONI DA system for data acquisition

Flexible stand: Baseplate of acrylic glass 10 x 10 x 0.5 cm (L x W x H); flexible goose neck consisting of 20 links, 1.7 cm maximum diameter, 30 cm length, one end with metal thread equipped with 1 butterfly nut, 1 nut and 2 washers. Weight 114 g

Dimensions: Complete head with leaf clip, 13.5 x 3.5 x 4 cm (L x W x H)

Power consumption: Peak loads during saturating pulses 3 W. During measuring mode 0.15 W

Operating temperature: -15 to +40 °C

Weight: 96 g

Light Emission

Modulated fluorescence excitation: Blue power LED (typical peak wavelength 470 nm, full width at half maximum 22 nm). Photosynthetically active radiation (PAR) of measuring light at level of the sample clip range from 0.15 to 1.5 μmol m-2 s-1 at low modulation frequencies (5 to 25 Hz), and from 1.5 to 22.5 μmol m-2 s-1 at high modulation frequencies (100 Hz)

Actinic light: Same power LED as for modulated light. At sample level of leaf clip, 3000 μmol m-2 s-1 maximum PAR of actinic light, 8000 μmol m-2 s-1 maximum PAR of saturating flashes


Fluorescence: PIN-photodiode protected by longpass filter (50% transmittance at 645 nm). Selective window amplifier to measure pulse amplitude modulated (PAM) fluorescence.

Photosynthetically active radiation (PAR): External LS-C sensor for selective PAR measurement, range 0 to 7000 μmol m-2 s-1, cosine-corrected for light incident at angles between -30° to +30° from the surface normal

Temperature: Thermocouple: Ni-CrNi, wire diameter 0.1 mm, -20 to +60 °C

Humidity: Capacitive-type humidity sensor on a specialized analog and digital integrated circuit, 0 - 100% relative humidity

Data Acquisition System MONI-DA

Housing: Robust water-proof cylinder consisting of a polyvinyl chloride (PVC) tube and poly-oxymethylene (POM) endplates. One endplate with 2 male M12 5-pole sockets connected in parallel (MONI-IB4/LAN communication, charging voltage), one male M12 5-pole socket for auxiliaries, and 7 female M12 5-pole sockets (MONI-HEAD/485 communication)

Dimensions: Cylinder with diameter of 16 cm and length of 24 cm

Data management: Dual data storage on internal 8 MByte circular flash buffer and an industrial grade 512 MByte removable microSD flash card. Wireless data transfer via cellular phone or satellite modem. Online data transfer using RS-485 serial data communication.

Power consumption: 5 mW in standby mode. Operating mode, depends on the number of MONIHEAD/485 connected (see MONI-HEAD/485 power consumption)

Battery: 12 V / 7.5 Ah (96 Wh) LiFePO4 battery.

Operating temperature: -30 to +60 °C

Weight: 5.4 kg

Flexible Ball Joint Mount for MICRO-PAM Measuring Head MICRO-HEAD/SG

Design: Two double-ball arm segments, two ball end pieces with photo thread (1/4” external), to mount a measuring head and a base plate with photo thread (1/4" internal), respectively.

Dimensions: 39 cm (L max.)

Weight: 410 g

Transport Box

Design: Aluminum box with custom foam packing for MONITORING-PAM including MONI-DA

Dimensions: 80 cm x 40 cm x 34 cm (L x W x H); 60 liter

Weight: 4.9 kg

Fluorometer Software and Computer Minimum Requirements

As described for ONLINE configuration

PC Interface Box MONI-IB1

Housing: Aluminum case with USB-B socket, power supply socket, and M12 5-pole socket for RS-485 communication

Links: The interface box connects a computer with a MONI-DA using RS-485 serial data communication. The same line is used to charge the MONI-DA battery. USB communication is used between interface box and computer

Recommended maximum cable lengths: To computer via USB: 2 m. To MONI-DA via RS-485,
100 m

Dimensions: 9.7 x 6.3 x 3.5 cm (L x W x H)

Weight: 270 g

Operating temperature: 0 to +40 °C

Solar Panel MONI-SP

Design: Polycrystalline silicon panel. Highly resistant to water, abrasion, hail impact and other severe weather conditions. Equipped with a 4 m cable and plug for the AUX or INPUT socket of the Data Acquisition System MONI-DA. Several panels can be connected in parallel to provide sufficient power under conditions of low insolation

Electrical characteristics: Vmax, 15.0 V, Imax, 0.63 A (at 1000 W/m2 sunlight). VOC, 19.6 V. ISC, 0.80 A

Dimensions: 50 x 35 cm (L x W)

Weight: 1.2 kg (incl. cable and plug)

Four-Way Distributor MICRO-HUB

Housing: Aluminum case with one M12 5-pole connector and four M8 5-pole connectors

Links: The interface box connects up to four MICRO-HEAD/3B Measuring Heads to one single MONI-BUS port of a MONI-DA data acquisition system

Recommended maximum cable lengths: 10 m between MICRO-HEAD/3B and MICRO-HUB, and between MICRO-HUB and MONI-DA

Dimensions: 10 x 6 x 3.5 cm (L x W x H)

Weight: 228 g

Operating temperature: -30 to +40 °C

PC Interface USB-0

Housing: Plastic block with one USB-B line and one line for RS-485 communication firmly attached

Interfacing: The interface cable connects a USB port of a computer with the input socket of the MONI-DA.

Cable lengths: USB: 0.9 m. RS-485, 2 m

Dimensions of block: 4.5 x 3.0 x 1.5 cm (L x W x H)

Weight including cables: 145 g

Operating temperature: 0 to +40 °C


Design: Weatherproof cylinder made of POM (Polyoxymethylene) containing a standard WiFi modul. One endplate made of POM, the other endplate made of Plexiglas with 5-pole M12 plug connector. Includes a 10 m cable to connect the modem to the AUX port of the MONI-DA. Data transfer requires connection to a WLAN network or to a hotspot.

Dimensions: 19.5 cm (L) 3.27 cm (Ø)

Weight: 140 g (modem), 320 g (cable)

Satellite Modem

Specification depend on available electronic components at the time of order