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| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | RG-3618AA |
| Wavelength Range | 190–900 nm |
| Wavelength Repeatability | ≤0.05 nm |
| Wavelength Accuracy | ±0.1 nm |
| Photometric Range | 0–2.0 A (Absorbance) |
| Optical System | Dual-Beam |
| Lamp Positions | 8-position rotating turret (compatible with high-performance hollow cathode lamps) |
| Background Correction | Combined deuterium lamp and self-reversal (SR) full-spectrum background correction |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | RG-3604AA |
| Wavelength Range | 190–900 nm |
| Wavelength Repeatability | ≤0.05 nm |
| Wavelength Accuracy | ±0.1 nm |
| Photometric Range (Absorbance) | 0–2.0 A |
| Optical System | Single-beam |
| Lamp Positions | 4 |
| Background Correction | Combined D₂ Lamp + Self-Reversal Full-Spectrum Background Correction |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | RG-3624AA |
| Wavelength Range | 190–900 nm |
| Wavelength Repeatability | ≤0.05 nm |
| Wavelength Accuracy | ±0.1 nm |
| Photometric Range | 0–2.0 A (Absorbance) |
| Optical System | Single-beam |
| Lamp Positions | 4 |
| Background Correction | D₂ Lamp + Self-Reversal Full-Spectrum Correction |
| Atomizer Type | Electrothermal Graphite Furnace |
| Brand | Hach |
|---|---|
| Origin | Shanghai, China |
| Model | DR3900 |
| Wavelength Range | 320–1100 nm |
| Wavelength Accuracy | ±1.5 nm (340–900 nm) |
| Photometric Measurement Range | 340–900 nm |
| Spectral Bandwidth | 5 nm |
| Display | 7″ TFT WVGA Color Touchscreen (800 × 480 pixels) |
| Data Storage Capacity | 2000 measurement sets |
| Preprogrammed Methods | >240 |
| User-Defined Methods | 100 |
| Operating Environment | 10–40 °C, ≤80% RH (non-condensing) |
| Dimensions | 151 × 350 × 255 mm |
| Weight | 4.2 kg |
| Power Supply | 100–240 VAC, 50–60 Hz |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | RG-3608AA |
| Wavelength Range | 190 nm – 900 nm |
| Wavelength Repeatability | ≤ 0.05 nm |
| Wavelength Accuracy | ±0.1 nm |
| Photometric Range (Absorbance) | 0 – 2.0 A |
| Background Correction | Deuterium Lamp + Self-Reversal Full-Spectrum Correction |
| Lamp Holder | 8-position, 360° Rotating, Compatible with High-Performance Hollow Cathode Lamps |
| Optical System | Single-Beam, All-Reflective Optics |
| Atomizer Type | Flame-Based Atomization System |
| Software Platform | RG-WinAAS Workstation (Windows OS) |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | RG-3638AA |
| Wavelength Range | 190–900 nm |
| Wavelength Repeatability | ≤0.05 nm |
| Wavelength Accuracy | ±0.1 nm |
| Photometric Range | 0–2.0 A (Absorbance) |
| Optical System | Single-beam |
| Lamp Positions | 8-position rotating turret (360° rotation, compatible with high-performance hollow cathode lamps) |
| Background Correction | Dual-mode — D₂ lamp + self-reversal (SR) full-spectrum background correction |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | pH 3310 |
| pH Range | –2.000 to 19.999 |
| pH Resolution | 0.001 |
| pH Accuracy | ±0.005 (at 25 °C, for range –2.000–19.999) |
| mV Range | ±2000 mV |
| mV Accuracy | ±1 mV |
| Temperature Range | –5.0 to 105.0 °C |
| Temp. Accuracy | ±0.1 °C |
| Automatic Temperature Compensation (ATC) | Yes |
| Calibration | 1-, 2-, or 3-point with auto-buffer recognition (DIN & NIST) |
| IP Rating | IP66/IP67 |
| Display | 7-segment LCD with large, high-contrast digits |
| Auto-read Delay | 15 s |
| Repeatability | < 0.02 pH |
| Battery Life | Up to 2500 hours (4 × AA alkaline) |
| Power Options | 4 × 1.5 V AA alkaline or 4 × 1.2 V NiMH rechargeable |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | RG-3628AA |
| Wavelength Range | 190–900 nm |
| Wavelength Repeatability | ≤0.05 nm |
| Wavelength Accuracy | ±0.1 nm |
| Photometric Range | 0–2.0 A (Absorbance) |
| Spectral Bandwidth | 0.1, 0.2, 0.7, 1.4, 2.0 nm (5-step automatic selection) |
| Lamp Positions | 8-slot rotating turret (360° motorized rotation) |
| Atomization Modes | Flame and External Graphite Furnace |
| Background Correction | Dual-mode — D₂ continuum lamp (full-spectrum) and high-performance self-reversal (SR) |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | RG-3668AA |
| Wavelength Range | 190–900 nm |
| Wavelength Repeatability | ≤0.05 nm |
| Wavelength Accuracy | ±0.1 nm |
| Photometric Range (Absorbance) | 0–2.0 A |
| Optical System | Dual-beam |
| Lamp Positions | 8-position rotating turret (compatible with high-performance hollow cathode lamps) |
| Background Correction | Combined deuterium lamp and self-reversal (SR) background correction across full wavelength range |
| Software Platform | RG-WinAAS workstation for Windows OS |
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