J-221指針式長波紫外照度計美國UVP品牌的產品介紹：
J-221 Ultraviolet Meters 紫外儀，紫外線計，紫外線強度計，紫外線照度計，紫外線輻照計，紫外光譜強度計
J-221紫外照度計是一款重復性很精準的紫外照度計，測量長波（365nm）紫外線強度。

J-221指針式長波紫外照度計美國UVP品牌的主要特點
• 靈敏的傳感器可以測量300-400nm的紫外線
• 每個紫外照度計的特點就是具有低和高兩種讀數
• 傳感器與主機有1.2米的連接線，更方便遠程讀數
• 兩種比例測量具有廣泛的強度范圍
• 當測量光源產生紅外輻射的時候，紅外濾光片能保證準確的讀數
• 5倍的衰減屏可用于高強度紫外燈的測量
• 自供電的方式提供了的便攜性

的規格
• 功率：光伏
• 測量長波365nm的紫外線強度
• 尺寸：76X76X76mm
• 重量：0.25kg

型號

的英文介紹：

J-Series Ultraviolet Meters
The J-Series UV meters are photovoltaic devices for taking accurate and repeatable readings of UV light sources in either the 365nm or 254nm UV range.

Main Features
J-225 Meter measures the intensity of shortwave UV (254nm). Each meter comes with a sensor, attenuation screen and filter. This meter's sensor is sensitive within a range from 220 to 280nm with maximum sensitivity at 254nm
J-221 Meter measures the intensity of longwave UV (365nm). The sensor is sensitive from 300 to 400nm with a peak sensitivity at 365nm. J-221 Meter complies with MIL STD 45662-A and can be found in MIL-I-6868D (NSN 6635-488-5451)
Each meter features two scales for low and high intensity readings
For remote readings, a four foot (1.2m) cord connects the sensor to the meter
Two scales measure a wide range of intensity
An infrared filter assures accurate readings when measuring light sources producing infrared radiation
The 5X attenuation screen can be used for very high intensity lamp measurements
Meters are self-powered for maximum portability

Specifications
Power：  Photovoltaic
J-225 Meters： Measures 254nm UV
J-221 Meter： Measures 365nm UV
Dimensions：
3H x 3D x 3W in. (76 x 76 x 76mm)
Weight： 9 oz (0.25kg)

Options
All meters and sensors are individually serialized for traceability of calibration. Calibration is recommended every six months and is certified to meet UVP's published standards and is traceable to NIST. Calibrations are performed at UVP's factory.
Contact the Calibrations Department for shipping information or other questions.