User Guide

Operating Manual alpha DO 1000
32
9 TECHNICAL SPECIFICATIONS
Dissolved Oxygen Range
mg/l of Oxygen
% Saturation of Oxygen
0.00– 20.00mg/l
0.0 to 200.0% Saturation
Resolution
mg/l of Oxygen
% Saturation of Oxygen
0.01mg/l
0.1%
Relative Accuracy
mg/l of Oxygen
% Saturation of Oxygen
± 1.5% of full scale reading
± 1.5% of full scale reading
No. of calibration points 1 (100% Saturation) or 2 (100% and 0% Saturation) points
Flow Rate 1-2 cm/sec (dependent on both Temperature & Oxygen level)
Response Time 40-50 sec. To attain 95%
Temperature 0-50 °C (Display: -9.9 to 125 °C)
Resolution 0.1 °C
Relative Accuracy
± 0.5 °C
Sensor Pt 100
Temperature Response Approx. 1 min/°C
Temperature Compensation Auto / manual (reference at 25.0 °C)
Pressure input K.Pas/mm of Hg (Manual input and Automatic correction)
Salinity input range 0.0 to 50.0 ppt (Manual input and Automatic correction)
Set-point and Controller Functions
Controller characteristics Limit / proportional (pulse or frequency) controller
Adjustable period with pulse length
controller
0.5 to 20 sec.
Adjustable period with pulse frequency
controller
60 to 120 pulses/min
Pickup / Dropout delay 0 to 1999 sec.
Switching D.O. hysteresis 0.1 to 1.0 mg/l or 0 to 10.0%
Contact outputs, controller 2 potential-free change-over contacts
Switching voltage max. 250 VAC
Switching current max. 3A
Switching power max. 600 VA
Alarm Functions
Function (selectable) Latching / pulse
Pickup delay 0 to 1999 sec.
Switching voltage max. 250 VAC
Switching current max. 3A
Switching power max. 600 VA
Electrical Data and Connections
Power Requirements 110 / 220 VAC (jumper selectable)
Frequency 48 to 62 Hz
Signal Output 0/4 to 20 mA, galvanically isolated
Load
max. 600 Ω
D.O. input screw terminals
Input impedance
10
12
Ω at 25
o
C
Cable length 5 meters
Connection terminal Terminal blocks 5-pole / 17-pole, removable
Mains fuse / fine wire fuse Slow-blow 250 V / 100 mA