線上水中溶氧感測器 5740 sc Galvanic Membrane Dissolved Oxygen Sensor
產品編號
Each sensor includes a replaceable cartridge (with factory-installed, semi-permeable membrane), protector, 12 disposable calibration bags for highly accurate "Saturation Method" air calibration and integral 10 m (32.8 ft) cable.

Replaceable Membrane Cartridge
Automatic Self-cleaning Accessories
Galvanic Technology
Less Contamination
Complete Encapsulation
產品介紹
    Replaceable Membrane Cartridge
Hach’s 5740 sc Galvanic Dissolved Oxygen (DO) sensors feature a replaceable cartridge, simplifying the delicate and time-consuming task of installing a new membrane. Each cartridge assembly includes a pre-installed, semi-permeable membrane, electrolyte, and electrodes.
 
Automatic Self-cleaning Accessories
Self-contained air blast cleaning systems, complete with air compressor, are offered to automatically clean the sensor membrane. A separate washer head air blast assembly is also available.
 
Galvanic Technology
The Hach 5740 sc DO sensor uses a unique galvanic measurement technique. When its lead anode and nickel-chrome cathode are immersed in a filling solution, a spontaneous voltage develops between the two electrodes. A membrane encapsulates the sensor. Oxygen that crosses the membrane is reduced at the cathode. As the oxygen is reduced, the voltage across the electrodes increases in proportion to the amount of oxygen that is consumed.
 
Less Contamination
Hydrogen sulfide contamination is greatly reduced because of the unique manufacturing process used in making the sensor. The Hach 5740 sc sensor outperforms similar systems at a greatly reduced price.
 
Complete Encapsulation
Fully-encapsulated construction protects the sensor’s built-in electronics from moisture and humidity problems, extending the working life of the sensor.
 
Dissolved Oxygen Method Range Reagent Set(s) USEPA Compliant?
  Continuous Process DO 0.0 - 40.0 mg/L O2    
 
 

Specifications

Accuracy:Measurement: ± 2 % of span
Accuracy 2:Temperature: ± 0.2 °C
Cable Length 2:10 m (integral) (33 ft.) terminated with quick-disconnect plug
Electrode Material:Nickel-chrome cathode, lead anode
Flow:0.5 cm/s (0.016 ft./s), minimum
Length:203.2 mm mm (8.00 in.)
Operating Temperature Range:-5 to 50 °C
Range:0.00 to 40.00 ppm (0 to 40 mg/L) or 200% saturation
Repeatability:± 0.5 % of span
Resolution:Above 10 ppm: ± 0.1 ppm or mg/L, ±0.1% saturation
Below 10 ppm: ±0.01 ppm or mg/L, ±0.1% saturation
Response Time - 20 °C:To 90 % in 120 seconds
Sensitivity:± 0.5 % of span
Special Notes:of span
Thickness Membrane:40 µm
Transmission Distance:1000 m (3280 ft.) maximum when used with a termination box
100 m (328 ft.) maximum
Warranty:12 months
Weight:1.32 lbs. (0.6 kg)
Wetted Materials:Noryl® body, PVC mounting adapter, Viton® O-rings, polypropylene membrane, Noryl® and
                                                    Ryton® cartridge assembly, and nylon cable grip/strain relief
 
 
型錄 Language Size Date Edition
Model 5740 Digital Galvanic Dissolved Oxygen Sensor Data Sheet 
LIT2469
English US 537 KB 2010-10 Rev 1
 
使用手冊 Language Size Date Edition
Model 5740sc Galvanic Membrane Dissolved Oxygen Sensor User Manual 
6120018
English US 759 KB 2005-05 Ed 2