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本品功能多样,测试精度高,将光测试提高到一个新的水平,在将探测器插上后系统校准因子就会自动加载,可选择的探测头覆盖UV到NIR波段,其它的都内置在系统中。探测头从#57-522 到 #57-525已去掉了滤光片,可被替换。每个探测头都有校准认证。
本品的主要特点包括有两个模式:瞬态模式(没0.5秒一更新)和综合强度模式(持续时间为24小时),读数据时,可使用屏幕显示锁定功能锁住屏幕数据,自动归零功能,数据单位为W(瓦)也可以使用方便读取数据的32字的LCD。菜单驱动程序模式是让使用者设置一些参数如自动关机、单位转换、以及校准因子等。您选择的每个探头都有预校准,使用标准单位,但是用在其它标准光度计和辐射照度计上时也是通用的。整个系统需要探测头和曝光表模块。
| Detector Specification | |||
| Stock No. | Spectral Range | Output Range | Active Area |
| #56-810 | 400-700nm CIE V(lambda) Photopic | 200mlux to 700klux; 10-2 to 105fc |
6.6mm2 Silicon |
| #57-522 | 400-1000nm, Radiometric | 8nW/cm2 to 27mW/cm2 | 33mm2 Silicon |
| #57-523 | 250-400nm (UV) | 182nW/cm2 to 640mW/cm2 | 5.2mm2 GaAsP |
| #57-524 | 315-390nm (UVA) | 25nW/cm2 to 88mW/cm2 | 33mm2 Silicon |
| #57-525 | 265-332nm (UVB) | 11µW/cm2 to 110mW/cm2 | 50mm2 Vacuum Photodiode |
| Light Meter Specifications | |
| Dimensions | 185mm L x 100mm W x 43mm T (main unit), 62mm L x 18mm H (LCD display) |
| Dynamic Range | 10pA to 350µA |
| Linearity | ±0.2% (±1 digit on low end) |
| Input Power | 4 AA batteries (included), AC adapter (sold separately) |
| Battery Lifetime | 35 hours continuous |
| Analog Output | 0 - 1V |
| Weight | 0.55kg (1.2 lbs.) |
| Front Panel Controls | |
| Zero | Allows automatic subtraction of undesired background light. |
| Signal | Instantaneous intensity measurement mode updates display every 1/2 second. Auto-ranging of output display units. |
| Integrate | Sum intensity of all the light reaching the detector over time. 5 decade dynamic range in this mode, integration times up to 24 hours. |
| Hold | Freezes the display to hold instantaneous darkroom readings or to terminate/pause a signal integration. Initiates TTL data transfer. |
| Menu Driven Programmable Features | Auto shut-off enable/disable Change measurement units and calibration factor View-only system data such as manufacturing and calibration dates |