Section 1 Specifications - Hach LDO User Manual

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