Dual-Channel Power and Energy Meter Benchtop Console
Over 25 Compatible Sensors
Large Graphics Display
Advanced Display and Measurement Features
Programmable Channels: Monitor, Difference, Ratio, Math Functions, Linear and Log Values, Attenuation
USB 2.0 Interface and Software Suite
Continuous and Single-Shot Energy Measurement of Pulsed Laser Sources
Thorlabs’ Dual Channel PM320E Power and Energy Meter offers many feaures not found in handheld devices. It is ideal for precise optical measurements, laser and photodiode characterization, lifecycle measurements and many more applications in the lab and on the manufacturing floor.
The dual-channel design enables differential and ratiometric measurements. Intuitive manual operation with the large graphics display, compatibility to conventional photodiodes, and excellent remote capabilities enable easy system integration.
The PM320E is compatible with all Thorlabs Photodiode Sensors (dual-channel) and Thermal Sensors (single channel only) and allows the connection of unamplified anode or cathode grounded photodiodes with up to 10mA photocurrent and thermal elements with up to 100 mV output voltage.
Item #
PM320E
Compatible Sensors
Photodiode, Thermal, and Pyroelectric
Number of Channels
2
Optical Power Range†
100 pW to 200 W
Optical Energy Range†
3 µJ to 15 J
Available Sensor Wavelength Range†
185 nm - 25 μm
Display Refresh Rate
20 Hz
Bandwidth†
DC - 100 kHz
Photodiode Sensor Range‡
100 nA - 10 mA
Thermopile Sensor Range‡
1 mV - 1 V
Pyroelectric Sensor Range‡
100 mV - 100 V
† Sensor Dependent ‡ Ranges Selectable in Watts (Photodiode and Thermopile) or Joules (Pyroelectric) and is dependent on the sensor used.
Additionally the PM320E offers energy measurements with all Thorlabs Pyroelectric Energy Sensors (both channels). More information can be found in the Sensor Compatibility tab and the Power Meter Compatibility Chart.The PM320E is sold as a single benchtop device with the sensors available separately. Please see Thorlabs' complete line of sensors below.
Console Design
The calibrated sensors connect via two sub-D connectors on the rear panel, which also provides two analog high bandwidth outputs to allow monitoring of each channel, plus the programmable analog output. Optional user-supplied photodiodes connect via two BNC inputs on the front panel, which feature switchable bandwidth and a programmable bias voltage. The input can be switched between the front and rear connectors. The additional BNC output is gain-and-function programmable. It provides an analog voltage proportional to the output of one of the channels or as a difference or ratio of the two power meter channels. The measurement resolution is 16 bit for all power ranges. The PM320E are controlled locally via the front panel, which features a large 240 x 128 pixel LCD display, or remotely via USB 2.0.
In addition to the console, the following comes with each purchase: Software CD ROM, LabVIEW™ and LabWINDOWS™ /CVI Driver Set, Certificate of Calibration, and Operation Manual.
Sensor Compatibility
The PM320E Console is compatibile with all Thorlabs' Power and Energy Sensors. A complete list of these sensors is shown below. For more information on previous generation sensors and consoles, please see the Sensor Compatibility tab or contact tech support.