Bộ chuyển đổi/ điều khiển đo oxy hòa tan Alpha DO 2000 Eutech TSDOCTP2000W (galvanic, gắn tường)

- Dissolved Oxygen

Range: 0.00 to 25.00 mg/L or ppm; 0.0 to 300.0 %

Resolution: 0.01 mg/L or ppm; 0.1 %

Accuracy: ±1.5 % of full scale reading

- Temperature

Range: -10.0 to 125.0 ºC / 14.0 to 157.0 ºF

Resolution:  0.1 ºC / 0.1 ºF

Accuracy: ±0.5 ºC / ±0.9 ºF

Sensor: Pt100/Pt1000; 2 or 3 wire

- Compensation: 

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 And Controller Functions

Set Point 1 (SP1) /set Point 2 (SP2): 0.00 to 25.00 mg/L or ppm; 0.0 to 300.0 %

Switching DO Hysteresis: ±1.0 pH

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

- Alarm Functions

Function (Switchable): Steady or fleet (pulse)

Pickup Delay: 0 to 2000 sec

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

- Electrical Data And Connections

Transmitter Function: Two 0/4 to 20 mA outputs for Dissolved Oxygen values and temperature, galvanically isolated

CU 22 Function: 22 mA current output

Isolated Output Voltage: 12 V ±0.5 V (max. 50 mA)

Hold Function Switch: To freeze output current and deactivate control relays

Load: Max. 600 Ohm

DO Input: 2-pin terminal

Connection Terminal: 5-pin, 8-pin, 9-pin & 13-pin terminal, detachable blocks

- Display

LCD: UV coat, backlit 14 segments display with symbols for status information

Backlight: On/off selectable with four level of brightness control

- Power Supply

Input: 80 to 250 VAC/DC ; 50/60 Hz ; 10 VA

Main Fuse: 315 mA, anti surge, 250 V

Operating Temperature Range: 0 ºC to 50 ºC

Max. Relative Humidity: 80 % up to 31 ºC decreasing linearly to 50 % at 40 ºC

- Dimensions (WxHxD): 144 x 144 x 111.5 mm

Weight: 745 g (unit) / 1100 g (packed)

Ingress Protection: IP66 (NEMA 4X)

Include: cable glands, terminal blocks, cable glands, gasket, etc