Purchase of Equipments ( S.No 1 to s.No 2 ) for Civil Department

JAR TEST APPARATUS • Uniform stirring of up to 6 samples simultaneously. Stirring rods should be adjusted individually during mixing • Digital display which should clearly indicate the speed of rotational variable speed 1-200RPM. • Heavy duty 1/20HP motor with gear train mounted on a mild steel housing. • Stainless steel stirring paddlers with adjustable height. Paddles to be driven by electronically controller variable speed. • Locking collars or stirring rods permit adjustment height of paddle height. • Spacing of 6' (150mm) between stirring rods so as to permit use up to 1000ml beaker. • The digital timer to be set to count down from 1 to 99 minutes. • Housing Material: CRC / MS sheet duly powder coated. • Power Consumption : 220/230V AC supply 50HZ single phase • Motor : 1/ 20HP Motor good quality • Illumination : Built in illuminator • Beaker : 6 nos 1000 ml beaker

TDS TESTING DEVICE (pen type) • TDS Measurement Range: Generally 0 to 2000 ppm (mg/L) or 0 to 10.00 ppt (g/L) for higher ranges. • Resolution: 1 ppm (0-1999 ppm) or 0.01 ppt (over 2000 ppm). • Accuracy: ±2% Full Scale (F.S.). • TDS Conversion Factor: Selectable or fixed (typically 0.45 to 1.0; 0.5 is standard). • Temperature Compensation: Automatic (ATC) from 0 to 50°C (32 to 122°F). • Temperature Range: 0.0 to 50.0°C / 32.0 to 122.0°F. • Calibration: Automatic or Manual, typically 1-point. • Probe/Electrode: Graphite or Stainless Steel for conductivity. • Display: Large LCD with simultaneous TDS and temperature readings. • Power: 4 x 1.5V button cells (e.g., LR44 or AG13). • Battery Life: Approximately 100-200 hours of continuous use.