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| 1 | SpectrophotometerSpecificationThe instrument shall be a fully automatic true double beam spectrophotometer employing simultaneous reference and sample beam optics to ensure high photometric stability and real-time correction of source fluctuations, incorporating a precision diffraction grating monochromator with not less than 1200 lines per millimetre and a fixed spectral bandwidth of 2 nm. Digital wavelength control with automatic calibration shall provide wavelength accuracy within ±2 nm and readability of 1 nm per step. The system shall offer a photometric range of at least ±2.5 Abs with accuracy ±0.005 Abs at 1.0 Abs, repeatability within ±0.005 Abs, resolution of 0.1%T and 0.001 Abs, baseline flatness within ±0.005 Abs, and drift not exceeding 0.003 Abs per hour at 500 nm. Measurement modes shall include absorbance, transmittance, and concentration with single wavelength, multi-wavelength, spectrum scan, and time scan functions, supported by selectable scan speeds and concentration calculation using factor and standard curve methods. The optical system shall use a stabilized tungsten halogen lamp and matched silicon photodiode detectors for reference and sample channels. The sample compartment shall accommodate standard 10 mm path length cuvettes for simultaneous reference and sample measurement with a maximum sample volume requirement of 1 ml and provision for multi-cell cuvette holders. The instrument shall feature a menu-driven LCD display with keypad operation, internal data processing with storage and recall of analytical methods, serial interface for PC connectivity, printer output capability, and operation on 230 V AC ±10%, 50 Hz power supply in a compact bench-top configuration with weight not exceeding 10 kg, supplied complete with standard glass cuvettes, dust cover, and operating manual.Warranty: Three years full comprehensive warranty from date of installation |
| 2 | Flame photometerSpecificationA fully microcontroller-driven flame emission photometric analytical system capable of rapid, single-aspiration determination of alkali and alkaline earth elements including sodium, potassium, lithium and calcium, incorporating dual programmable concentration modes (low and high) with automatic curve-fitting correction to compensate for non-linear emission behaviour at elevated concentrations, enabling accurate analysis over extended dynamic ranges without mandatory dilution; the instrument shall support multi-point calibration with storage and recall of user-defined methods and analytical data sets (minimum 1000 results, individual, batch-wise and date-wise), provide re-standardisation using a single standard to minimise drift, feature an integrated high-contrast alphanumeric display (minimum 4 lines) with menu-driven operation, real-time clock, internal averaging control (approx. 2–15 s), defined minimum sample uptake of ~3 ml per element, reproducibility within ±1% full scale at low concentration and ±2% full scale at high concentration, optical interference control via element-specific filters, stable flame generation through regulated compressed air supply with moisture- and oil-free filtration, user-supplied LPG fuel operation, automatic ignition provision, digital communication interface for PC data transfer (RS-232 or equivalent), optional hard-copy output compatibility, operation on standard single-phase AC mains (≈230 V, 50 Hz), compact bench-top construction with separate compressor unit, and complete readiness for routine laboratory, industrial, clinical, agricultural and environmental applications requiring reliable elemental flame photometry with high repeatability and operational automationWarranty: Three years full comprehensive warranty from date of installation |
| 3 | Centrifuge machineSpecificationStepless speed regulator with zero start interlock, Digital speed indicator, Dynamic brake, 0-99 minutes digital countdown timer, Imbalance detector with cutoff, Safety lid interlock to prevent cover opening during centrifugation, Rotor head capacity: 6 /12 × 50 ml, Speed: 7000 rpm or moreWarranty: Three years full comprehensive warranty from date of installation Please Enable Macros to View BoQ information |
