Hach LDO User Manual

Also see for LDO: Addendum-Operation User manual

Hach LDO User Manual Manual pdf 5 page image

5Section 1 SpecificationsSpecifications are subject to change without notice.Table 1 LDO Probe SpecificationsComponents Corrosion-resistant materials, fully-immersible sensor with 10 m (30 foot)cableMeasuring Range (Dissolved Oxygen) 0 to 20.00 ppm (0 to 20.00 mg/L) or 0 to 200% saturationMeasuring Range (Temperature) 0 to 50 °C (32 to 122 °F)Measurement Accuracy Below 1 ppm: ± 0.1; Above 1 ppm: ±0.2Temperature Accuracy ±0.2 °CRepeatability ±0.5% of spanResponse Time To 90% in less than 40 secondsTo 95% in less than 60 secondsResolution Below 10 ppm: ±0.07 ppm or mg/L, ±0.1% saturationAbove 10 ppm: ±0.01 ppm or mg/L, ±0.1% saturationInterferencesNo interferences from the following: H 2 S, pH, K+1 , Na+1, Mg +2 , Ca+2, NH 4+1,Al +3, Pb+2, Cd+2, Zn +2 , Cr (tot), Fe+2 , Fe+3 , Mn+2 , Cu+2 , Mi+2 , Co+2 , CN–1 ,NO 3–1 , SO 4–2, S –2 , PO 4+3 , Cl–1 , Anion Active Tensides, Crude Oils, Cl2–1Probe Operating Temperature 0 to 50 °C (32 to 122 °F)Probe Storage Temperature –20 to 70 °C (–4 to 158 °F); 95% relative humidity, non-condensing.Minimum Flow Rate Non requiredSensitivity ±0.5% of spanCalibration/VerificationAir Calibration: one point, 100% water saturated air; Sample Calibration:comparison to standard instrument, or comparison to Winkler TitrationmethodProbe Immersion Depth and Pressure Limits Submersible to 107 m (350 ft)/1050 kPa (150 psi)Sensor Interface ModbusSensor Cable10 m (30 ft) integral cable with quick-disconnect type plug. Additional cablelength may be added by using a junction box. Up to 100 m with extensioncables.Up to 1000 m using the Junction box.Probe Weight 1.4 kg (3 lb, 2 oz.)Probe Dimensions 60 x 292 mm (2.4 x 11.5 inch)Warranties Probe: 3 yearsSensor Cap: 1 year