HFP01SC-L

Specifications

Measurement and Control Products for WEATHER

Measurement and Control Products for WATER

Measurement and Control Products for ENERGY

Measurement and Control Products for MACHINES

Measurement and Control Products for STRUCTURES

Measurement and Control Products for EARTH

Extreme Accuracy
Self-calibrating; ideal for energy-balance in eddy-covariance and Bowen-ratio systems

Request a Quote

Ask a Question

Overview

Specifications

Compatibility

Ordering

Support

Image Gallery

Technical Description

The HFP01SC consists of a thermopile and a film heater. The thermopile measures temperature gradients across the plate. During the in-situ field calibration, the film heater is used to generate a heat flux through the plate. The amount of power used to generate the calibration heat flux is measured by the datalogger. Each plate is individually calibrated, at the factory, to output flux.

Self-calibration corrects for errors due to differences in thermal conductivity between the sensor and surrounding medium, temperature variations, and slight sensor instabilities.

HFP01SC-L Specifications

Sensor Type: Thermopile with film heater
Sensitivity (nominal):
50 μV W^-1 m^-2
Nominal Resistance: 2 W
Temperature Range: -30° to +70°C
Expected Accuracy: ±3% of reading
Heater Resistance: 100 ohms (nominal)
Heater Voltage Input:
9 to 15 Vdc
Heater Voltage Output:
0 to 2 Vdc
Duration of Calibration:
±3 minutes @ 1.5 Watts;
typically performed every 3 to 6 hours
Average Power Consumption:
0.02 to 0.04 W
Plate Thickness: 5 mm (0.20 in.)
Plate Diameter: 80 mm (3.15 in.)
Weight without cable: 200 g (7.05 oz)