Explosion-proof Power Meters with Integrating Sphere Sensors 

Explosion-proof Power Meters with integrating sphere photodiode sensors 

Thanks to the integrating sphere design, can measure optical power independent of the divergence angle and beam shape of the incoming beam. They are available with either a silicon photodiode sensor for 350 to 1100 nm (Si photodiode) or a InGaAs photodiode sensor for 800 - 1700 nm. Both sensors can detect optical powers between 1 µW and 500 mW

This optical power meter can be used for both fiber-coupled and free-space applications. An SM1 (1.035″-40) thread adapter and an FC fiber adapter are supplied with the unit, while other fiber adapters for SMA, LC, ST and SC connectors are available separately. 

The Ex Power Meters with integrating sphere photodiode sensors remotely controlled power meters have USB interfaces and are offered with a selection of photodiode and thermal power sensors. Each sensor is connected to the USB interface by a standard 1.5 m connection cable.

8-32- and M4-threaded mounting holes are provided to accommodate posts.

The meter holds the sensor’s individual NIST- and PTB- traceable spectral calibration data in a non-volatile memory.

Ex Power Meters with integrating sphere photodiode sensors compatible with Windows OS.

The Ex Power Meters with integrating sphere photodiode sensors is connected through an industrial USB 2.0 connector to an intrinsically safe barrier Ex USB 2.0.

The Ex Power Meters with integrating sphere photodiode sensors have a “hot-plug” function which allows them to be connected and disconnected without stopping, shutting down or rebooting the system.

Specifications:

Detector Type: Silicon Photodiode and InGaAs photodiode

Wavelength Range: 350 - 1100 nm (Si photodiode) and 800 - 1700 nm (InGaAs photodiode)

Optical Power Working Range: 1 µW – 500 mW

Max Average Power Density: 1 kW/cm2

Linearity: ±0.5%

Active Area Uniformity: ±1%

Aperture size: diameter 5 mm

Resolution: <1 nW

Calibration Uncertainty: ±3% (451 – 1000 nm), ±5% (350 – 450 nm, 1001 – 1100 nm) (Si photodiode) and ), ±5% (InGaAs photodiode)

Typical Application: Fiber Lasers / Low- and Mid-Power Lasers

Laser Types: Diode, Ti-Sapphire, He-Cd, ArIo, KrIo, Dye, LED

Integrating Sphere Material (Diameter): Zenith® PTFE Integrating Sphere (diameter 1")

Response Time: <1 µs

Sensor Head Dimensions: diameter 45 x 30.5 mm

Active Detector Area: 3.6 mm x 3.6 mm (Si photodiode) and diameter 2 mm (InGaAs photodiode)

Input Aperture: diameter 5 mm

Post Mounting: 8-32 & M4 threads

Aperture Thread: Externally SM1–Threaded (1.035"-40) Removable Adapter

Fiber Adapters (Optional): FC (Included), SC, LC, SMA, ST (Not Included)

Cable Length: 1.5 m

Power Meter Electronics Properties

Analog Measurement Range: 500 nA, 50 µA, 5 mA

Measurement Units: W, dBm, A

AD Converter: 24 Bit

Analog Amplifier Bandwidth: 10 Hz

Update Rate: 10/s

Remote Interface: USB 2.0

Power Supply: External: 5 V DC via USB

Connector: USB

Electronics Dimensions: 65 mm x 20 mm x 10 mm

Total Weight: 0.2 kg

Supported Operating Systems: Windows

Сompliance: IP 65, RoHS

Electrical Data:

Uo=5 V

Io=50 mА

Ui=5 V

Ii=50 mА

Ci=10 µF

Ex marking:

Ex ib I Mb

Ex ib IIC T6...T4 Gb X

Ex tb IIIC T85°C...135°C Db

Produced in accordance with IEC 60079-0, IEC 60079-11, IEC 60079-31

Operating temperature: 0°C to 40°C

The scope of delivery implies:

Explosion-proof Power Meters with Integrating Sphere Sensors

Fiber Adapters FC