| Industrial
Process Controllers & Monitors alpha-DO1000
1/4 DIN Dissolved Oxygen Controller
-
Built-In Programmable
Limit, Proportional (Pulse Length or Pulse Frequency) - ideal
for precision process control applications
-
User-Customization
through Advanced Setup Menu offers flexibility in matching
the controller's functions to suit individual's specific requirement
-
Readout in mg/L,
pm or % saturation
-
Barometric and Salinity
Automatic Compensation after manual input
-
Hold Relay for
use with float switches/flow switches and other controllers as
a failsafe function
-
Two Level Password
Protection prevents un authorized tampering with settings
-
0 to 2000 Second
Time Delay Adjustment on control and alarm delays
-
Two
Galvanically Isolated Scalebale 0-20/4-20 mA
Outputs
-
Wash Contact Relay
controls electrodes cleaning systems at desired duration and
frequency
-
Choice of General
Purpose or Low DO measurement for wider applications
-
Adjustable Hysteresis
(Dead Band) prevents rapid contact switching near set point
-
Non-Volatile
Memory retains all
stored parameters and calibration data even if power fails
- Large Dual Display shows DO
with temperature simultaneously - features clear multiple icons,
set points, and status messages
- Choice of Temperature
Sensor Pt100/Pt1000
with 2-wire or 3-wire temperature input selection
- Easy Installation and Wiring
with detachable plug-in connectors
Applications
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.
Specifications
of alpha-DO1000
Controller
Product
Code |
EC-DOCTP1001/2 |
Dissolved
Oxygen Range |
0.00
- 19.99 mg/l (ppm); 0.00 to 199.9% |
Resolution
& Accuracy |
0.01
mg/L or 0.1% & ±1.5% Full scale |
No.
of Calibration Points |
1
(100% saturation) or 2 (100% and 0% saturation) |
Salinity/Barometric
Pressure compensation |
0.0
- 50 ppt; 555 to 808 mmHg or 74 to 108 kPA |
Probe
Type |
Galvanic
cell |
Response
Time |
40
seconds to achieve 93% of the reading |
Temperature
Range |
-9.9
to 125.0 °C |
Resolution
& Accuracy |
0.1
°C & ± 0.5 °C |
Pressure
Input |
KPa/mmHg
(manual input or automatic correction) |
Type
of Controller Setting |
Off
(Monitoring); Limit;
Proportional (Pulse Length or Pulse Frequency) |
Pickup/Dropout
Delay |
0
to 2000 seconds |
No. of Relays
Maximum Voltage
Maximum Current
High/Low Hysteresis Band |
2 SPDT;
1 Alarm
250 VAC
3A;
0.1 to 1.0 mg/L or 1 to 10.0 % |
Wash
Cycle/Duration |
0.1
to 199.9 hrs & 1 to 1999 sec |
Contact
Set-points |
Lo/Lo;
Lo/Hi; Hi/Lo; Hi/Hi (selectable) |
Alarm
Function |
Latching
/ Pulse (software) |
| Insulation
(Front / Housing) |
IP
54 / IP 40* |
Power |
120
or 240 VAC, 50/60 Hz |
Dimensions |
1/4
DIN (96 x 96 mm) |
IP
54 - Protection from dust; limited entrance (no harmful deposit) and
water sprayed from all directions; limited entrance allowed.
IP
40 - Protection from solid objects more than 1 mm (e.g., small wires)
but no protection against liquid.
Copyright © 1997 Eutech
Instruments Pte Ltd. marketing@eutechinst.com
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