|
Field/Laboratory/Industrial
Instruments, Controllers & Sensors
Multi-parameter Bench Meters
Please click above to view this range
pH, Reference, Conductivity, Redox,
Dissolved Oxygen, Ion Selective Electrodes, Calibration
Solutions,
Hollow Cathode
Lamps
and
Deuterium
Lamps
|
Dissolved Oxygen : In line Dissolved
Oxygen / Dissolved Oxygen Transmitter Controller for Oxygenated
Water (Alpha DO1000)
The
Alpha DO1000 in line Dissolved Oxygen
Monitor / Dissolved Oxygen Transmitter Controller offers the
user the facility to measure dissolved oxygen levels in oxygenated
water using powerful programmable functions and enhanced performance that
simplify complicated procedures associated with continuous in line
Dissolved Oxygen measurements. Advanced user-customizable features
in the Alpha Do1000's powerful SETUP function include: Two
Galvanically Isolated Scaleable 0-20/4-20 mA
Outputs for fine control, 2 independent set-points with
hysteresis protection, built-in proportional control, and noise
grounding functions. Being menu-driven, the alpha DO1000 controller
offers quick access and greater flexibility to configure measurement
functions to suit the needs of process plants that demand high-end
features at an economical price. Applications for the Alpha
DO1000 include :
Industrial : 
Monitoring temperature
and control of Dissolved Oxygen in wastewater treatment and
aquaculture applications,
effluent control, water quality measurements & Oxygenated
treatment in power utilities, Water treatment in the semiconductor
industry, Boiler feed water concentration samples and
use with valves, blowers or aerators to ensure proper system
operation.
Main Features :
- 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 settings0 to 2000 Second Time Delay Adjustment on control
and alarm delays
- Two Galvanically Isolated Scaleable 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
SPECIFICATIONS :
| 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) |
| Power |
120 or 240 VAC,
50/60 Hz |
| Dimensions |
1/4 DIN (96 x 96
mm) |
Click
Here to View Process Control Instruments |
