Thermo Scientific Alpha DO 2000
Eutech Instruments
是 Eutech Instruments 溶解氧测量仪，原始说明为：With a wide measuring range of 0 to 20 ppm or 0 to 200 % saturation, Alpha DO 2000 controller/transmitter is ideal for use in a variety of applications, ranging from water treatment and monitoring to pharmaceutical and food processing. Meter comes in both Galvanic and Amperometric versions.
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产品概述与应用
With a wide measuring range of 0 to 20 ppm or 0 to 200 % saturation, Alpha DO 2000 controller/transmitter is ideal for use in a variety of applications, ranging from water treatment and monitoring to pharmaceutical and food processing. Meter comes in both Galvanic and Amperometric versions.
Flexible Display - Readings values in mg/L or % air saturations, selectable from menu options
Easy Calibration - Quick, easy calibration using atmospheric air as calibration media for 100 % air saturation
Comprehensive Compensation - Pressure, Salinity and Automatic Temperature Compensation
Rugged and long-lasting, the galvanic electrode requires no warm-up time and prevents zero drift by recreating H2O within the electrode. This prevents change of pH to the electrode and allows it to recycle within the probe. The result: galvanic sensors have long lifespans and require low maintenance costs.
The amperometric dissolved oxygen electrode contains special membranes that are designed to require almost zero maintenance. These unique membranes stay stable even under harsh ambient conditions and high pressure. This enables the sensors to capture accurate DO readings within short response time at required flow as low as 0.02 m/s.
General: Useful for monitoring temperature and control of DO in wastewater treatment and aquaculture applications. Use with valves, blowers or aerators to ensure proper system operation.
技术参数
| 型号/系列 | Thermo Scientific Alpha DO 2000 |
|---|---|
| Range | 0.00 to 25.00 mg/L or ppm; 0.0 to 300.0 % (For TSDOCTP2000W) 0.00 to 20.00 mg/L or ppm; 0.0 to 200.0 % (For TSDOCTP2000WPG & TSDOCTP2000PPG) |
| Resolution | 0.01 mg/L or ppm; 0.1 % |
| Accuracy | ±1.5 % of full scale reading (For TSDOCTP2000W) ±1 % of full scale reading (For TSDOCTP2000WPG & TSDOCTP2000PPG) |
| Range | -10.0 to 125.0 ºC / 14.0 to 257.0 ºF |
| Resolution | 0.1 ºC / 0.1 ºF |
| Accuracy | ±0.5 ºC / ±1.0 ºF |
| Sensor | Pt100/Pt1000 (jumper selectable); 2 or 3 wire (For TSDOCTP2000W) NTC 22 kOhm thermistor (For TSDOCTP2000WPG & TSDOCTP2000PPG) |
| Temperature Compensation | Auto/manual |
| Salinity Compensation | 0.0 to 50.0 ppt (manual setting and automatic correction) |
| Pressure Compensation | 0.740 to 3.000 bar; 555 to 2250 mmHg; 10.73 to 43.51 psi (manual setting and automatic correction) |
| Set Point 1 (SP1) / Set Point 2 (SP2) | 0.00 to 25.00 mg/L or ppm; 0.0 to 300.0 % (For TSDOCTP2000W) 0.00 to 20.00 mg/L or ppm; 0.0 to 200.0 % (For TSDOCTP2000WPG & TSDOCTP2000PPG) |
| Switching DO Hysteresis | 0 to 10.0 % (For TSDOCTP2000W) 0.1 to 1.0 mg/L or 1.0 to 10.0 % (For TSDOCTP2000WPG & TSDOCTP2000PPG) |
| Function (Switchable) | P/PI control (pulse length/pulse frequency/proportional integral); limit control; off |
| Adjustable Period With Pulse Length Controller | 0.5 to 20 sec |
| Adjustable Period With Pulse Frequency Controller | 60 to 120 pulse/min |
| Integral Action Time (IAT) | 0.0 to 999.9 min |
| Pickup/Dropout Delay | 0 to 2000 sec |
| Wash Cycle | 0.1 to 200.0 hr |
| Wash Duration | 1 to 2000 sec |
| Contact Outputs | 1 SPDT, 3 SPST relays |
| Switching Voltage/ Current/Power | 1/8 HP: at 125 VAC / max. 0.74 A / max. 93 VA 1/8 HP: at 250 VAC / max. 0.37 A / max. 93 VA (For TSDOCTP2000W) Max. 250 VAC / max. 3 A / max. 600 VA (For TSDOCTP2000WPG & TSDOCTP2000PPG) |
| Function (Switchable) | Steady or fleet (pulse) |
| Pickup Delay | 0 to 2000 sec |
| Transmitter Function | Two 0/4 to 20 mA outputs for Dissolved Oxygen values and temperature, galvanically isolated |
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