型号	1936-R	2936-R
通道数量	1	2
计算机接口	USB and RS-232
采样频率	250 kHz (10 kHz accessible by user)
兼容的探头	818-xx/DB, 918D (photodiode), 818P, 919P (thermopile), 818E (pyroelectric)
数据存储	250,000 Point Internal Storage, External Storage Defined by User Supplied USB Drive
模拟输出	0-1 V, 0-2 V, 0-5 V or 0-10 V (user selectable output impedance)
带宽	Up to 500 kHz (Photodiode), Up to 1.9 MHz (Thermopile or Pyroelectric) depending on Range
精度	±0.2 % for CW, ±1 % for Peak to Peak, Pulse to Pulse, and Integration Mode
探测器输入	Up to 25 mA for photodiode, 130 V for thermopile and pyroelectric detectors
显示模式	20 mm Numeric, Bar Chart, Min/Max Bar, Statistics, Analog Needle
显示类型	5.7 in. Graphical TFT LCD, ¼ VGA
显示器刷新频率	20 Hz
光电二极管测量	Average Power, Peak-to-Peak Power, Frequency
热电堆测量	Average Power, Single Shot Energy
焦热电测量	Pulse Energy (Legacy 818E series only)
频率测量范围	1 Hz - 250 kHz
测量速率	Up to 10 kHz pulses for pyroelectric, Up to 20 kHz for photodiode (peak to peak measurement)
增益范围	8 ranges, 7 decades
分辨率	0.0004% of Range Full Scale
电源要求	90-240 VAC
尺寸	308 x 216 x 133 mm
重量	5.1 kg	5.6 kg
工作温度	5 to 40°C, <70% RH
存储温度	-20°C to 60°C, <90% RH
CE	Compliant
RoHS	Compliant

Model	818-UV/DB	818-SL/DB	818-IR/DB	818-IG/DB
Spectral Range (nm)	200 to 1100	400 to 1100	780 to 1800	800 to 1650
Max. Measurable Power w/ Attenuator (W)	0.2W (200 - 400 nm) and 50 mW (400 - 1100 nm)	2	2	2
Max. Measurable Power w/o Attenuator (mW)	0.3 mW (200 - 400 nm); 0.1 mW (400 - 600 nm, >1050 nm) , 0.07 mW (600 - 1050 nm)	4 mW	10 mW	10 mW
Power Density, Average Max w/ Attenuator (W/cm2) (1)	30	30	30	30
Power Density, Average Maximum w/o Attenuator (W/cm2) (1)	0.2	2	3	3
Pulse Energy, Maximum - w/ Attenuator (J) (2)	0.5 u	5 u	5 u	5 u
Pulse Energy, Maximum - w/o Attenuator (J) (2)	0.5 n	5 n	5 n	5 n
Calibration Uncertainty (Without Attenuator) (4)	4% @ 200-219nm, 2% @ 220-349nm, 1% @ 350-949nm, 4% @ 950-1100nm	1% @ 400-940nm, 4% @ 941-1100nm	2% @ 780-910nm, 2% @ 911-1700nm, 4% @ 1701-1800nm	2% @ 800-900nm, 2% @ 901-1650nm
Calibration Uncertainty (With Attenuator) (4)	8% @ 200-219nm, 2% @ 220-349nm, 1% @ 350-949nm, 4% @ 950-1100nm	1% @ 400-940nm, 4% @ 941-1100nm	5% @ 780-910nm, 2% @ 911-1700nm, 4% @ 1701-1800nm	5% @ 800-900nm, 2% @ 901-1650nm
Uniformity (%)(3)	±2	±2	±2	±2
Linearity (%)	±0.5	±0.5	±0.5	±0.5
Material	UV Enhanced Silicon	Silicon	Germanium	Indium Gallium Arsenide
Active Area (cm2)	1	1	0.071	0.071
Active Diameter (cm)	1.13	1.13	0.3	0.3
Shape	Cylinder	Cylinder	Cylinder	Cylinder
Attenuator, OD3	Detachable	Detachable	Detachable	Detachable

1) The limiting factor w/ Attenuator is the damage threshold of the OD3 attenuator. The limiting factor w/o Attanuator is the detector nonlinear response at high input beam intensity.

2) 15 ns pulse width

3) Uniformity specification applies to photodiode only. It does not apply to the attenuator.

4) Calibration uncertainty can be varied depending on the NIST transfer standard uncertainty variation.