The 843-R is a low cost power meter yet capable of measuring power level from pJ and pW to thousands of Watts, in an ergonomically designed compact body.  843-R has two display modes: a large digital display with a bar graph or with a high resolution simulated analog needle.
A simple configuration of the measurement parameters and hot-swappable capability allow the user take measurements quickly even with multiple sensors. The case is made of molded high impact plastic with optimized angle kickstand. Rubberized sides provide an easy grip of the power meter and protection against damage.  
843-R can be operated either by battery or from an AC source with the charger plugged in at all times. Its backlight allows illumination of the power meter in low light conditions.  Recalibration in every 12 months is recommended. 

Note that the 843-R Optical Power Meter is not compatible with the legacy 818P series Thermopile Sensors and the 818E series Pyroelectric Sensors.  Consider purchasing the 843-R-USB for a USB interface with a PC.

• 兼容的探头

  818-xx/DB, 918D, 819C/D, 919E, 919P, LIAD, PEPS

• 计算机接口

  None

• 采样频率

  15 Hz (photodiode and thermopile), 500 Hz (pyroelectric)

• 重复频率

  Up to 25 kHz pulses (pyroelectric)

• 模拟输出

  0-1 V into 100 Ω, mono audio 2.5 mm jack (included)

• 精度

  ±0.25 % (Full Scale) ± 20 p A

• 电源要求

  DC 12 - 16 V, 1W

• 电池

  Rechargeable Li-ion Batteries

• 电池寿命

  14 hours typical between charges.

• 探测器输入

  Up to 1.3 mA for Photodiode Sensors

• 显示模式

  15 mm numeric display. High resolution analog needle also can be chosen.

• 显示类型

  High legibility TFT 320 x 240 pixel graphics LCD

• 显示器刷新频率

  15 Hz  

• 光电二极管测量

  Average Power

• 热电堆测量

  Average Power, Single Shot Energy

• 焦热电测量

  Pulse energy (10 times per sec)

• 增益范围

  16 Ranges

• 分辨率

  18 bits plus sign

• 尺寸

  213 x 113 x 40 mm

• 重量

  0.47 kg  

• 工作温度

  15°C to 35°C, <70% RH, non-condensing

• 存储温度

  0°C to 50°C, <90% RH

• CE

  Compliant

• RoHS

  Compliant

• 测量速率

  15 Hz

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843-R是一个低成本的功率表，但能够测量功率水平从pJ和pW到数千瓦，在一个符合人体工程学设计的紧凑的身体。843-R有两种显示模式:带条形图的大型数字显示器或高分辨率模拟模拟针。测量参数的简单配置和热插拔功能允许用户使用多个传感器进行快速测量。外壳采用高冲击模制塑料，采用优化的角度支架。橡胶侧提供了一个容易的抓地力表和防止损坏。 843-R可由电池或交流电源供电，充电器随时插电。它的背光允许在低光条件下照明功率表。建议每12个月重新校准一次。请注意，843-R光功率计不兼容遗留的818P系列热电堆传感器和818E系列热电传感器。考虑购买843-R-USB与PC的USB接口。