YOKE 721-100 visible Spectrophotometer wavelength 350~1020nm 100mm Colorimetric dish holder
Light spectrum bandwidth 6nm, Wavelength Accuracy +/- 2nm, imported tungsten lamp, can prevent 10cm Colorimetric dish, automatic light gate and zero adjustment.
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Introduction
Yoke 721-100 Visible Spectrophotometer is an economical analytical instrument with optional RS232 interface output and high photometric accuracy. It is widely used in medical testing, food, petrochemical industry, environmental protection and monitoring and many other fields.
Features
1. Digital display of measured values
2. Automatic light gate, automatic zero adjustment and instrument calibration
3. The original imported tungsten lamp is used to ensure the service life of the instrument
4. The large sample room can hold a 10cm cuvette at most
5. The optional output port RS232 can realize the function of connecting to a printer and a computer
Key Function

Key Name Key Function Description
【MODE】A/T/C/F mode switching key
【PC】Print/online send data key
【↑/0%】Input data in C/F mode to increase/adjust 0% T key
【↓/100%】Input data in C/F mode to decrease/adjust transmittance to 100%T or absorbance to 0.000ABS key
Key function description
A: Measure the absorbance of the sample
T: Transmittance of the measured sample
C: Enter the F value to measure the concentration, or use the standard solution to calculate the F value
F: Enter the F value to measure the concentration
Series
| 721 (721-100) | 722 (N/S) | 752N (N/PC) | |
| Wavelength range | 350nm~1020nm | 320nm~1020nm | 195nm~1020nm |
| Wavelength Accuracy | ±2nm | ±2nm | ±2nm |
| wavelength repeatability | ≤1nm | ≤1nm | ≤1nm |
| Spectral bandwidth | 6nm | 5nm | 4nm |
| stray light | ≤0.3%T(at 360nm) | ≤0.3%T(at 360nm) | ≤0.3%T (at 220, 360nm) |
| Transmittance measuring range | 0.0%T~199.9%T | 0.0%T~199.9%T | 0.0%T~199.9%T |
| Absorbance measurement range | 0.000A~1.999A | 0.000A~1.999A | 0.000A~1.999A |
| Transmittance Accuracy | ±1.0%T | ±0.5%T | ±0.5%T |
| Transmittance repeatability | ±0.5%T | ±0.2%T | ±0.2%T |
| stability | ≤0.5%T/3min | ≤0.5%T/3min | ≤0.5%T/3min |
| noise | 0.3%T | 0.3%T | 0.3%T |
| bright current | ≤0.5%T/3min | ≤0.5%T/3min | ≤0.5%T/3min |
| receiving element | photocell | photocell | photocell |
Yoke 721-100 Spectrophotometer Specifications
| LIST | VALUE |
|---|---|
| Optical inspection system | Eliminate color difference Czerny-Turner (1200L/mm grating) |
| Light spectrum bandwidth | 6nm |
| Wavelength range | 350~1020nm |
| Wavelength Accuracy | ±2nm |
| Wavelength, repeability | ≤1nm |
| Photometric Accuracy | 0.5%T |
| Luminosity, sexual repeability | 0.2%T |
| stray light | ≤0.3%T@360nm |
| Noise level | ≤0.3%T |
| stability | ±0.004A/h@500nm |
| Operating Mode | T、A、C |
| printout | optional |
| light source | Tungsten lamp |
| Weight | 8kg |
| drift | ≤0.2%T |
Yoke 721-100 Spectrophotometer Packing list
host X1, manual X1, certificate X1, warranty card X1
[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.
FAQ
- Detection of nicotine content by Spectrophotometer
- How to detect the color difference of fluorescent color-changing materials?
- Spectrophotometric testing
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- Differences between visible, ultraviolet-visible, infrared, fluorescent and atomic absorption Spectrophotometer s
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- Which Spectrophotometer is widely used in the metal industry?
- Liquid color difference detection solution
- Color Measurement Challenges Faced by Manufacturers in the Metals Industry
- Calibration of Spectrophotometer s
- IncomingGB/T 27594-2025
- ActiveJC/T 1040-2020
- ActiveJY/T 0570-2020
- ActiveGB/T 7744-2023
- ActiveGB/T 15503-1995
- AbolishGB/T 10656-2008
- ActiveGB/T 34323-2017
- ActiveGB/T 26798-2011
- ActiveGB/T 11220.1-1989
- AbolishHJ/T 201-2005
- ActiveGB/T 6369-2008
- ActiveGB/T 27594-2011
- AbolishGB/T 1628.2-2000
- ActiveGB/T 1721-2008
- ActiveGB/T 26810-2011
- ActiveGB/T 26798-2011
- AbolishGB/T 11175-2002
- ISO 6271-2-2004
- ISO 4630-2-2004
- ISO 3856-5-1984


721-100






