FS-3080BF Plant Photosynthesis Meter

Product Introduction

The FS-3080BF Plant Photosynthesis Meter is a portable plant physiology analyzer designed to measure photosynthesis-related gas exchange and environmental parameters. Using open-circuit and closed-circuit measurement methods, it monitors carbon dioxide concentration, air temperature and humidity, leaf temperature, photosynthetically active radiation (PAR), and gas flow.

Based on these measurements, the instrument can calculate key physiological indicators, including photosynthetic rate, transpiration rate, intercellular CO₂ concentration, stomatal conductance, and water use efficiency. Its temperature-compensated dual-wavelength infrared CO₂ analyzer, adjustable airflow, color display, and onboard data storage support field measurements and laboratory research.

With customizable leaf chambers and a rechargeable lithium battery, the FS-3080BF is suitable for plant physiology, agronomy, horticulture, forestry, crop research, and related biological studies.

Performance Features

•  Multiple Physiological Indicators: Measures or calculates photosynthetic rate, transpiration rate, intercellular CO₂ concentration, stomatal conductance, and water use efficiency.

•  Comprehensive Environmental Monitoring: Measures CO₂ concentration, relative humidity, air temperature, leaf temperature, PAR, and gas flow.

•  Temperature-Compensated CO₂ Analysis: Uses a dual-wavelength infrared CO₂ analyzer designed to minimize the influence of temperature changes on measurement accuracy.

•  Adjustable Airflow: Allows airflow to be set within the specified range for studying gas-exchange responses under different flow conditions.

•  Open- and Closed-Circuit Modes: Supports two measurement approaches for different experimental requirements.

•  High-Resolution Color Display: Features a 3.5-inch TFT true-color LCD with 800 × 480 resolution for clear viewing, including under strong light.

•  Intelligent Operation: Provides a menu-based interface with cursor-guided operation and displays measurement processes and results.

•  Portable Design: The host weighs approximately 3.25 kg and supports up to 10 hours of continuous operation on a fully charged battery under specified conditions.

•  Expandable Data Storage: Includes 16 GB of memory, expandable to 32 GB.

•  Convenient Data Export: Connects to a computer via USB for direct data export.

•  Customizable Leaf Chambers: Uses a standard 55 × 20 mm leaf chamber, with other sizes available for different sample requirements.

•  Broad Research Applications: Supports measurements involving different crop and plant leaf shapes, as well as compatible respiration experiments involving soil, seeds, and insects.

Working Principle

The FS-3080BF analyzes plant gas exchange by measuring changes in carbon dioxide concentration and monitoring the environmental conditions surrounding the sample.

In open-circuit mode, air passes through the measurement system and leaf chamber, allowing the analyzer to evaluate gas exchange from differences between incoming and outgoing air. In closed-circuit mode, measurements are performed within a recirculating or closed gas pathway, according to the instrument's configuration and operating procedure.

The infrared CO₂ analyzer measures carbon dioxide concentration, while temperature, humidity, PAR, and airflow sensors record relevant environmental parameters. The instrument combines these measurements with the appropriate calculation models to determine photosynthetic rate, transpiration rate, intercellular CO₂ concentration, stomatal conductance, and water use efficiency.

By recording these indicators alongside environmental conditions, researchers can investigate plant responses to light, temperature, humidity, and airflow.

Technical Parameters

CO₂ and Environmental Measurements

Parameter	Specification
CO₂ Measurement Principle	Temperature-compensated dual-wavelength infrared analysis
CO₂ Measuring Range	0–3,000 ppm
CO₂ Resolution	0.1 ppm
CO₂ Accuracy	±3 ppm, as specified
Leaf Chamber Temperature Sensor	High-precision digital sensor, Germany Heraeus
Leaf Chamber Temperature Range	−20°C to 80°C
Leaf Chamber Temperature Resolution	0.1°C
Leaf Chamber Temperature Error	±0.2°C
Leaf Temperature Sensor	Platinum resistance sensor
Leaf Temperature Range	−20°C to 60°C
Leaf Temperature Resolution	0.1°C
Leaf Temperature Error	±0.2°C
Humidity Sensor	High-precision digital sensor, Swiss origin as specified
Relative Humidity Range	0–100% RH
Humidity Resolution	0.1% RH
Humidity Error	≤1% RH

Light, Airflow, and Measurement Configuration

Parameter	Specification
PAR Sensor	Silicon photocell with correction filter
PAR Measurement Range	0–3,000 μmol·m⁻²·s⁻¹
PAR Accuracy	Less than 1 μmol·m⁻²·s⁻¹, as specified
PAR Response Wavelength	400–700 nm
Flow Measurement	Glass rotameter
Adjustable Flow Range	0–1.5 L/min, as interpreted from the supplied specifications
Flow Measurement Error	1%; less than ±0.2% within 0.2–1 L/min, as specified
Standard Leaf Chamber Size	55 × 20 mm
Custom Leaf Chambers	Available on request
Measurement Methods	Open-circuit and closed-circuit
Operating Temperature	−20°C to 60°C
Operating Relative Humidity	0–100% RH, non-condensing

General Specifications

Parameter	Specification
Display	3.5-inch TFT true-color LCD
Display Resolution	800 × 480 pixels
Data Storage	16 GB, expandable to 32 GB
Data Transfer	USB connection to a computer
Power Supply	DC 8.4 V lithium battery
Continuous Operating Time	Up to 10 hours
Overall Dimensions	260 × 260 × 130 mm
Host Weight	3.25 kg

Note: The original flow-error specification is unusual, and the PAR accuracy wording contains duplicated units. The values above retain the supplied figures in a standardized format; confirm the official measurement tolerances with the manufacturer before formal publication.

Application Scenarios

• Agricultural Research: Evaluate photosynthetic performance and environmental responses in field crops and agricultural plants.

•  Horticulture: Study gas exchange in vegetables, fruit trees, greenhouse crops, and ornamental plants.

•  Forestry Research: Measure photosynthetic activity in forest trees and other woody plants.

• Plant Physiology Laboratories: Investigate stomatal conductance, transpiration, intercellular CO₂, and water use efficiency.

•  Crop Breeding and Stress Studies: Compare plant responses to changes in light, temperature, humidity, and airflow.

•  Grassland and Pasture Research: Analyze photosynthetic characteristics of forage plants and pasture species.

•  Ecological Research: Support studies of plant-environment interactions and carbon exchange.

• Respiration Experiments: With compatible chambers and procedures, support respiration studies involving soil, seeds, and insects.

FS-3080BF vs. Basic Plant Measurement Instruments

Comparison Item	FS-3080BF Plant Photosynthesis Meter	Basic Plant Measurement Instruments
Photosynthesis Analysis	Supports photosynthetic rate calculation	Often measures only individual environmental parameters
Gas Exchange Indicators	Includes transpiration, intercellular CO₂, and stomatal conductance calculations	May require separate instruments
CO₂ Measurement	Temperature-compensated dual-wavelength infrared analyzer	Depends on the instrument
Measurement Modes	Open-circuit and closed-circuit	Depends on the instrument
Environmental Parameters	CO₂, humidity, air temperature, leaf temperature, PAR, and airflow	Usually a narrower selection
Airflow Control	Adjustable within the specified range	May not be available
Data Storage	16 GB, expandable to 32 GB	Depends on the instrument
Portability	Approximately 3.25 kg host with rechargeable battery	Depends on the instrument
Leaf Chamber Options	Standard and customizable sizes	Depends on the system
Typical Application	Integrated plant gas-exchange research	Individual environmental or plant measurements

Frequently Asked Questions

1. What does the FS-3080BF Plant Photosynthesis Meter measure?

It measures CO₂ concentration, air temperature and humidity, leaf temperature, photosynthetically active radiation, and gas flow. It also calculates key indicators such as photosynthetic rate, transpiration rate, intercellular CO₂ concentration, stomatal conductance, and water use efficiency.

2. What is the CO₂ measurement range?

The specified CO₂ measurement range is 0–3,000 ppm, with a resolution of 0.1 ppm and stated accuracy of ±3 ppm.

3. What is the difference between open-circuit and closed-circuit measurement?

Open-circuit measurement evaluates gas exchange as air passes through the system, while closed-circuit measurement uses a closed or recirculating gas pathway. The appropriate mode depends on the experimental setup and measurement requirements.

4. Can the instrument measure leaf temperature and humidity?

Yes. Leaf temperature is measured over a specified range of −20°C to 60°C, while relative humidity is measured from 0% to 100% RH.

5. What is the PAR measurement range?

The PAR sensor measures photosynthetically active radiation from 0 to 3,000 μmol·m⁻²·s⁻¹ across a response wavelength range of 400–700 nm.

6. Can the FS-3080BF be used in field research?

Yes. Its portable design, rechargeable lithium battery, color display, and onboard storage make it suitable for field measurements as well as laboratory studies, within the specified operating conditions.

7. How long can the instrument operate on battery power?

The specified continuous operating time is up to 10 hours. Actual battery life may vary with operating conditions and usage.

8. Can measurement data be exported to a computer?

Yes. The instrument supports USB connectivity for direct data export to a computer.

9. Can the leaf chamber be customized?

Yes. The standard leaf chamber measures 55 × 20 mm, and other sizes can be customized according to sample dimensions and customer requirements.

10. What research fields can use the FS-3080BF?

It is suitable for agronomy, horticulture, forestry, plant physiology, crop research, ecological studies, and compatible respiration experiments involving soil, seeds, and insects.