High Intensity UVA Probe PMA1112

High Intensity UVA Sensor Probe PMA1112

The PMA1112 High Intensity Analog UVA sensor is sensitive to radiation in the range from 320 to 400 nm with the peak sensitivity around the 365nm mercury emission line. The UVA Sensor probe detects light through a window on the side of the probe near the tip and is a useful tool in UV curing applications.

U.S.Pat.5,946,641

U.S.Pat.5,790,432

Features:

High sensitivity
High dynamic range
High temperature operation
Durable construction
Excellent long term stability
NIST traceable calibration
Radiometric units
Probe electrically isolated from the meter
Easy to install
0.375"(9.5mm) probe diameter

> Wiring Diagram

Applications:

UV curing, printing and photolithography
Monitoring of UV sources stability and lifetime
Measurements in hazardous environment

The UVA radiation is captured by a diffuser mounted at the end of an 18" long probe and delivered to the UVA sensor through a quartz light guide encapsulated in a metal envelope. This construction places the UVA sensor far from the point of measurement, making the probe suitable for high temperature applications, up to 400°C.

The UVA sensor's high dynamic range allows measurement of signals as strong as 20W/cm² and as weak as 0.1mW/cm² . Automatic tracking of the minimum, maximum and average built into the PMA1100 gives the opportunity to monitor the short term fluctuations of the UV source due to changing line voltage, equipment configuration or inherent instability of the UV sources Making the best use of the UV lamp requires precise knowledge of it's lifetime. It can be determined by frequent spot-checks of the lamp's output.

UVA Sensor Specifications:

Spectral response: 320-400nm, figure 1
Angular response: cosine corrected
Range: 20 [W/cm²] or 20,000 [mW/cm²]
Display resolution: 0.001 [W/cm²], 0.1[mW/m²]
Operating environment (Tip): -56 to 750 °F (-50 to +400 °C)
Operating environment (Sensor): 32 to 120 °F (0 to +50 °C)
Temperature coefficient: <0.05%/°C
Cable: 5ft (1.5m)
Diameter: 1.6" (40.6 mm) [Sensor]; 0.375"(9.5mm) [Probe]
Height: 1.8" (45.8 mm) [Sensor]; 18" (457.2mm) [Probe]
Weight: 10 oz. (280 grams)

> Return to Sensor Selection Guide

Application Notes & Technical Papers:

Ultaviolet Curing - app105.pdf

Interfacing PMA detectors to a Campbell data logger - app111.pdf

PMA Series capabilities and applications - app112.pdf

PMA detector integration - app120.pdf