Electronics India 1305 Microprocessor Visible Spectrophotometer – 340 to 960 nm, Single Beam
The Electronics India Model 1305 is a microprocessor-based, single-beam visible spectrophotometer covering a wavelength range of 340 to 960 nm. It is built for routine colorimetric and photometric analysis in water testing, pharmaceutical QC, food, clinical biochemistry and academic laboratories.
Light from a 6 V, 10 W tungsten halogen lamp is dispersed by a 600 line/mm diffraction grating monochromator, giving a spectral bandwidth of less than 5 nm. Wavelength is set in 1 nm steps with ±1 nm accuracy and ±2 nm repeatability, and a silicon photodiode detector measures the transmitted light.
Results can be read as %T (0–100), absorbance (0–1.999) or concentration (0–1999), with resolutions of 0.1 %T, 0.001 Abs and 1 concentration unit. A 16 × 2 line alphanumeric backlit LCD and soft-touch membrane keys make set-up and reading straightforward.
The instrument stores up to 100 sample results and has a printer attachment facility, with an RS-232C computer interface available as an option. It takes standard 10 mm square glass cuvettes, and a set of glass cuvettes, an operation manual and a dust cover are supplied as standard.
Technical Specifications
| Parameter / Feature | Details |
|---|---|
| Product Type | Microprocessor Visible Spectrophotometer (Single Beam) |
| Brand | Electronics India |
| Model | 1305 |
| Wavelength Range | 340 – 960 nm |
| Wavelength Resolution | 1 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | ±2 nm |
| Spectral Bandwidth | Less than 5 nm |
| Output | %T: 0 – 100; Abs: 0 – 1.999; Conc.: 0 – 1999 |
| Photometric Resolution | %T: 0.1; Abs: 0.001; Conc.: 1 |
| Light Source | 6 V, 10 W tungsten halogen lamp |
| Monochromator | 600 line/mm diffraction grating |
| Detector | Silicon photodiode |
| Sample Holder | 10 mm square glass cuvettes |
| Display | 16 × 2 line alphanumeric backlit LCD |
| Keypad | Soft-touch membrane keys |
| Data Storage | 100 samples |
| Interfaces | Printer attachment facility; RS-232C computer interface (optional) |
| Operating Temperature | 5 °C – 45 °C |
| Power | 230 V ± 10% AC, 50 Hz |
| Dimensions (L × B × H) | 475 × 285 × 130 mm (approx.) |
| Weight | 8.5 kg (approx.) |
| Standard Accessories | Glass cuvettes (1 set), operation manual, dust cover |
| Optional Accessories | Printer attachment; RS-232C computer interface |
Specifications as published by Electronics India for Model 1305. Specifications may change without notice; please confirm the current configuration at the time of quotation.
Core Features & User Benefits
The Model 1305 gives laboratories dependable visible-range photometry with direct %T, absorbance and concentration readout, in a compact benchtop unit.
- 340 – 960 nm Visible Range Covers the wavelengths used for most colorimetric methods in water, food, clinical and pharmaceutical analysis.
- Diffraction Grating Monochromator A 600 line/mm grating with less than 5 nm bandwidth gives sharper wavelength selection than filter-based colorimeters.
- ±1 nm Wavelength Accuracy 1 nm wavelength resolution and ±1 nm accuracy support reproducible method settings.
- Three Readout Modes Read %T, absorbance or concentration directly, without manual conversion.
- Backlit Alphanumeric LCD 16 × 2 line backlit display with soft-touch membrane keys for clear, simple operation.
- 100-Sample Memory Store results for later review and record-keeping.
- Printer and PC Connectivity Printer attachment facility, with an optional RS-232C interface for computer connection.
Frequently Asked Questions (FAQ)
What wavelength range does the Electronics India 1305 cover?
340 to 960 nm in the visible region, with 1 nm wavelength resolution and ±1 nm accuracy.
Can it measure in the UV range?
No. The 1305 is a visible spectrophotometer starting at 340 nm. For UV work below 340 nm, a UV-VIS model such as the Electronics India 2371 or 2375 is needed.
What readout modes are available?
Transmittance (0–100 %T), absorbance (0–1.999 Abs) and concentration (0–1999).
What cuvettes does it use?
Standard 10 mm square glass cuvettes. One set is supplied with the instrument.
Can results be printed or sent to a computer?
Yes. The instrument has a printer attachment facility and stores up to 100 samples. An RS-232C computer interface is available as an option.
Catalogue & Datasheet
Electronics India Model 1305 Brochure
Official Electronics India brochure for the Model 1305 microprocessor visible spectrophotometer, with features and technical data.
Download Catalogue (PDF)PDF, 1.2 MB. Manufacturer document from Electronics India. For a quotation or configuration advice, contact SciSpectrum.
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