PlanTherm - Model PT100 -Plant Heat Stability Measurement Device

The linear heating is coupled with a continuous monitoring of changes in the conductivity of the bath.

• Sample chamber for small up to middle site leaves, leaf segments, algae or cyanobacteria suspensions.
• Precisely controlled gradual (linear) heating of plant segments with the slope up to 3 °C/min
• Accurate temperature measurements (±0.02 °C) within the range of 20 – 85 °C
• High accuracy conductivity measurement within 0.01 – 1,000 µS/cm
• Measurement of the minimal chlorophyll fluorescence intensity (F₀ level)
• Compact device including measuring unit, magnetic stirrer, thermoregulator and mini computer in one case
• Built-in scripting (R environment) language allows custom analysis of measured responses

Measured Fluorescence Parameters:
F0, Fluorescence/Temperature curve with up to 4 fluorescence critical points estimation

Measured Conductivity Parameters:
Conductivity/Temperature curve with conductivity critical point estimation

Fluorescence Module Excitation Light Sources:
460 nm for both the saturation light and FT measuring pulse; individual intensity settings

Protocols:
Custom defined linear heating (1 – 3 °C/min) in defined temperature range

Temperature Control Range:
20 – 85 °C

Water Bath Volume:
7 ml

Conductivity Measurement Resolution:
0.01 µS

Temperature Measurement Resolution:
0.01 °C

Stirrer Frequency:
0 – 2,000 RPM

Data Sampling Frequency:
2 Hz

Typical Samples:
Detached leaf segments of maximum size 0.5 × 2 cm

Analysis:
Predefined R script for critical point searching; analysis scripts free for custom modification

Mini PC Configuration:
Intel NUC Golden Lake D33217GKE i3-3217-U 1.8 GHz; min 90 GB SSD HD, 2 GB DDR3 RAM

Dimensions:
5 × 20 × 20 cm

Total Weight:
2 kg

Power Input:
Max. 70 W

Electrical:
90 – 240 V