EUTECH INSTRUMENTS ?lpha-pH500 Spécifications télécharger pdf (Page 39)

Instruction Manual Alpha DO 500

6. Technical Specifications

General Specification

(a) Dissolved Oxygen (% saturation)

Measuring Range 0.00 to 199.9 %

Resolution 0.1 %

Relative Accuracy ± 1.5% of full-scale reading

(b) Dissolved Oxygen (ppm or mg/l)

Measuring Range 0.00 to 19.99 ppm or 0.00 to 19.99 mg/l

Resolution 0.01 ppm or 0.01 mg/l

Relative Accuracy ± 1.5% of full-scale reading

Measuring range 0.0 to +100.0

Resolution 0.1

Relative accuracy ± 0.5

Sensor

Pt100 (2 wire or 3 wire)

Calibration

(a) Dissolved Oxygen

Number of calibration points 1 or 2 points

(b) Temperature

Offset Adjustment ± 10 C

Compensation

Temperature Compensation Automatic or Manual (0 to 50

Pressure Compensation 0.74 to 3.00 BAR

550 mmHg to 2250 mmHg (225 cmHg)

10.7 to 43.5 PSI

(Manual setting and automatic correction)

Salinity Compensation 0.0 to 50.0 ppt

(Manual setting and automatic correction)

Output Parameters

Output Current 4 to 20 mA (Galvanically Isolated)

Over/Under Range Output

Current

ON Select : 3.8 mA

OFF Select: 4 mA (under range), 20 mA (over

range)

HOLD Output Current ON Select : 22 mA

OFF Select : Last measured current

Load Resistance 600 ohms (max.) at 24V

Display

LCD 7 segments display with symbols for status

information

Electrical Data and Connections

DO Input Screw Terminal (3.5mm pitch)

Connection terminal 8-pin & 3-pin terminal blocks

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 47 48

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EUTECH INSTRUMENTS ?lpha-pH500 Spécifications Page 39

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