Sorry, this product is no longer offered for sale. It was discontinued on Feb 27, 2026The recommended replacement product is 7Z01708.
Optical Power Meter, Benchtop, Dual Channel, Power and Energy, RoHS
The 2936-R, RoHS compliant Dual Channel High Performance Optical Power and Energy Meter is one of the most sophisticated optical meters available in the market. These instruments combine the superb femtowatt level sensitivity reached by the 2931-C and the extreme versatility of 2935-C, resulting in a truly revolutionized instrument. All compatible detectors will work with the instrument and hot-swappable, avoiding the need to cycle power when a different sensor must be used.
Versatile Graphing Capabilities
The Analog Gauge display mode can be used for tuning adjustments. In the Graph screen mode the power meter acts as an oscilloscope. Users can see in real time the optical power level in their experiment.
Analog Gauge display
Highly Visible Color Display
The 5.7 inch, full color, graphical LED display provides excellent legibility from any angle, in any light condition. It enables both numerical and graphical measurement representation, with a choice of six different display colors. Measurements can also be displayed in formats including numeric, graphic, bar and strip charts.
Advanced Measurement Capabilities
The 1936-R and 2936-R software gives users the flexibility of a command line environment as well as the ability to download collected data directly to a computer for analysis. True Root-Mean-Square (RMS) measurements, providing the most accurate RMS value regardless of the shape of the input waveform. Additional advanced features include an internal 250,000 data point storage buffer, additional data storage using an external USB flash drive, analog and digital filtering, programmable sample rates, moving statistics, plotting and multiple user-configuration storage.
Specifications
- Number of Channels2
- BandwidthUp to 400 kHz, depending on Range
- Measurement RatePhotodiode: Up to 10 kHz for cw, 20 kHz for peak to peak
Thermopiles: 1 kHz - Compatible Detectors818-xx/DB, 918D (photodiode), 818P, 919P (thermopile), 818E (pyroelectric), 819C, 819D
- Detector InputUp to 25 mA for photodiode, 130 V for thermopile and pyroelectric detectors
- Resolution0.0004% of Range Full Scale
- Accuracy±0.2 % for CW, ±1 % for Peak to Peak, Pulse to Pulse, and Integration Mode
- Frequency Measurement Range1 Hz - 250 kHz
- Gain Ranges8 ranges, 7 decades
- Analog Output0-1 V, 0-2 V, 0-5 V or 0-10 V (user selectable output impedance)
- Data Storage250,000 Point Internal Storage
- Computer InterfacesUSB and RS-232
- Display Mode20 mm Numeric, Bar Chart, Min/Max Bar, Statistics, Analog Needle
- Display Type5.7 in. Graphical TFT LCD, ¼ VGA
- Display Refresh Rate20 Hz
- Photodiode MeasurementAverage Power, Peak-to-Peak Power, Frequency
- Thermopile MeasurementAverage Power, Single Shot Energy
- Power Requirements90-240 VAC
- Dimensions308 x 216 x 133 mm
- Weight5.6 kg
- Operating Temperature5 to 40°C, <70% RH
- Storage Temperature-20°C to 60°C, <90% RH
- CECompliant
- RoHSCompliant
Resources & Downloads
3D Product Models
Literature
1936-R_2936-R Power and Energy Meter Datasheet(1.1 MB, PDF) Understanding Total Measurement Uncertainty(649.3 kB, PDF)
Other
x936-R CE Update(790.5 kB, PDF) x936-R, 1830-R_Power Meter Samples(173.3 kB, PDF)
2D Product Drawings
1936-R 2936-R Dimensional Drawing.pdf(224.3 kB, PDF)
Software
LabVIEW Samples v3-0-4(1.3 MB, ZIP) Computer Interface Software v3.0.4(39.4 MB, ZIP) Firmware-PMx936-R_1.3.4.0.zip(723.8 kB, ZIP)
Manuals
1936 & 2936-R Power Meter Startup Guide(402 kB, PDF) 1936 & 2936-R Power Meter User Manual Errata(44.4 kB, PDF) 1936 & 2936-R Power Meter Full User Manual(3.4 MB, PDF) 19xx-29xx Power Meter Communication Commands Reference V01(823 kB, PDF)
Technical Notes
Average and Peak Power Calculation(31.9 kB, PDF) A Shortcut for Calculating Power Density(35.2 kB, PDF) How to Write Basic Power Meter Code with Labview Drivers(557 kB, PDF) Extending Optical Power Meter Display Lifetime(122.5 kB, PDF)
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