Thermo Scientific Alpha DO 500
Dissolved Oxygen 2-Wire Transmitter
[ DISCONTINUED ]
Product Features
The Alpha DO 500 Transmitter transmits dissolved oxygen readings across a wide measurement range to the peripheral instrument of your choice, reliably and accurately.
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Measures dissolved oxygen (in mg/L, ppm and % saturation) simultaneously with temperature
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±1.5 % full scale accuracy
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Quick, easy calibration using atmospheric air as calibration media for 100 % air saturation
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Push-button calibration – quick, easy, no hassle
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High quality, high resolution output at chart printers and other secondary devices
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Reliable, accurate measurements at different temperature with Automatic Temperature Compensation
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Offset Adjustment Function allows you to adjust readings conveniently without having to remove electrode from the measurement tank or pipe
Specifications
Product
Specification
Description
Dissolved Oxygen
Range
0 to 19.99 mg/L / 0.00 to 19.99 ppm
0 to 199.9 % saturation
Resolution
0.01 mg/L or 0.01 ppm
0.1 %
Accuracy
±1.5 % full scale
Temperature
Range
0.0 to 100.0 ºC
Resolution
0.1 ºC
Accuracy
±0.5 ºC
Sensor
Pt100; 2 or 3 wire
Compensation
Auto/manual (0 to 50 ºC)
Pressure
Compensation
0.74 to 3.00 bars
550 to 2250 mmHg
10.7 to 43.5 psi
(manual setting and automatic correction)
Salinity
Compensation
0.0 to 50.0 ppt
(manual setting and automatic calibration)
Transmitter:
Transmitter Function
4 to 20 mA scalable outputs for Dissolved Oxygen, galvanically isolated
Out-Of-Range Current Output
3.8 mA:
‘On’ select selects 3.8 mA
‘Off’ selects 4 mA (under range)
Selects 20 mA (over range)
Hold Current Output
22 mA:
‘On’ select selects 22 mA
‘Off’ selects last measured current value
Load
Max. 600 Ohm
Electrical
Data And Connections
DO Input
2-pin terminal
Connection Terminal
3-pin & 8-pin terminal, detachable blocks
Display
LCD
7 segments display with symbols for status information
Power
Supply
Input
12 to 24 V DC
EMC Specifications
Emitted Interference
According to EN 61326
Immunity
To Interference
According to EN 61326
Environmental Conditions
Operating Temperature Range
0 to 40 ºC
Max. Relative Humidity
80 % up to 31 ºC decreasing linearly to 50 %
at 40 ºC
Mechanical
Specifications
Dimensions (WxHxD)
96 x 96 x 66 mm
Weight
210 g (unit) / 310 g (packed)
Ingress Protection
IP65
Order Information
Order
No.
Item
TSDOCTP0500
Alpha DO 500 wall/panel-mount Dissolved Oxygen 2-wire transmitter with 4-20 mA output & 12-24 V DC. Incl. cable glands, terminal blocks, gasket, threaded rods, catch, etc
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