www.黄色毛片 I 午夜剧场一级片 I 色婷婷中文 I 五级黄色片 I 日本精品一区二区在线观看 I 国产福利三区 I 午夜黄视频 I av无码av高潮av喷吹免费 I 98超碰在线 I 亚洲夜夜爱 I 嘿咻视频在线观看 I 天天爽夜夜爽视频精品 I 久久久久1 I 欧美一级片网址 I 色老二导航 I 久久久一区二区精品 I 你懂的91 I 亚洲乱码中文论理电影 I 国产黄色免费片 I 亚洲国产精品久久久久秋霞影院 I 99中文字幕 I 中文字幕四区 I 在线三级av I 青青草手机视频 I www.亚洲视频.com I 欧美日韩国产成人高清视频 I 国产精品爱久久久久久久电影 I 免费嗨片首页中文字幕 I 天天色综合4 I 日韩中文字幕免费在线观看 I 久久国产精品网站 I 在线免费观看福利影院 I 成人丁香在线 I 米奇777影视狠狠狠 I 色噜噜狠狠色综合欧洲selulu

Products

current position:home page>Products>Environmental Instrument>

LI-250A Light Meter

Updated:2025-03-13

Brand: LI-COR
Model: LI-250A
Description: The LI-250A is a portable meter that displays the output from any LI-COR light sensor that has a cable terminated with a BNC connector. It shows instantaneous values or 15-second averages of values fr
Data download

Feedback
WeChat

QQ

Online Service

Product Details

LI-250A Light Meter Description：

Product Manual

The LI-250A is a portable meter that displays the output from any LI-COR light sensor that has a cable terminated with a BNC connector. It shows instantaneous values or 15-second averages of values from a sensor.

The LI-250A automatically selects a sensitivity range to optimize accuracy and resolution for a given sensor. It provides a wide dynamic range for high-resolution measurements, even in low-light conditions.

Features

15-second averaging is turned on or off by pressing a single button

Over 150 hours of operation from a single 9-volt battery

Automatic shut-off after 20 minutes of inactivity

O-ring sealed case for weather protection

Easy-to-enter calibration multipliers make it simple to change between sensors

Compatible with the LI-190R, LI-191R, LI-192, LI-193, LI-200R, or LI-210R

LI-250A Light Meter Specification：

Accuracy	25 °C: Typically ± 0.4% of reading ± 3 counts on the least significant digit displayed (all ranges). 0 - 55 °C: Typically ± 0.6% of reading ± 3 counts on the least significant digit displayed (all ranges).
Range Selection	Autoranging (3 ranges).
Linearity	±0.05%
Sensors	Designed for type "SA" sensors; type "SB" and "SL" sensors with BNC connectors are also compatible when calconnector or millivolt adapter are removed.
Sensor Calibration	Each sensor is supplied with a calibration multiplier. Calibration multipliers for two sensors can be stored in memory. Calibration multipliers are entered from the keypad.。
Signal Averaging	Sensor output can be collected and displayed as a 15-second average (approximately 60 readings). Averages are retained on the display in HOLD mode.
Display	LCD display. Updated every 0.5 seconds in Instantaneous mode.
Battery Life	150 hours typical with continuous operation.
Power Requirement	One 9V Alkaline battery.
Operating Conditions	0 to 55 °C, 0 to 95% RH (non-condensing).
Storage Conditions	-55 to 60 °C, 0 to 95% RH (non-condensing).
Size	14 cm × 7.7 cm × 3.8 cm (5.5" × 3" x1.5").
Weight	0.26 kg (0.57 lbs).
Warranty	1 year parts and labor.

LI-250A Range and Resolution
Sensor	Range	Resolution
Quantum	0-199 μmol·s ^-1 m ^-2 0-1999 0-19999	0.01 μmol·s ^-1 m ^-2 0.1 1
Pyranometer	0-19 W·m ^-2 0-199 0-1999	0.001W·m ^-2 0.01 0.1
Photometric	0-1999 lux 0-19999 lux 0-199 klux	0.1 lux 1 0.01 klux