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Product Groups
Dissolved Oxygen Transmitter- Analyzer and Controller
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
DOTX441
PLACE ORDER 
  • Analyzer/Transmitter/Controller
  • NEMA 7X (IP68) Enclosure
  • Galvanic Cell for PPB
  • Self-Guided Menu
  • Automatic Calibration and Check
  • ON/OFF/PWM Control
  • Programmable Transmitter Output
  • RS485 Output, in MODBUS®
 Specs
 Manuals (contact with email : [email protected])
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Description

Description

The DOTX441 dissolved oxygen analyzer issupplied in a compact cast aluminum case. SAE 323,with low oxidation grade, anticorrosion treatment andfinished with electrostatic epoxy paint. The DOTX441 iscompact, light weight, rugged and IP-68 rated. The units includelocal display, transmitter output and controller function allprogrammed via a 3-button side panel with an easy self guidedmenu. The DOTX441 can be mounted on a 51 mm (2") tube or flatsurface. Electrical connections are on the terminal bar located inthe back housing of the instrument with cable entrance throughtwo cable compression fittings of 13 mm (½") BSP. Commonapplications include food and drink, pulp and paper, chemical,sanitation, water and wastewater treatments.

SPECIFICATIONS
Case Cast: Aluminum SAE 323
Finishing: Electrostatic epoxy paint
Electrical Connection Connector Bar: Conexell type
Cable Inlet Cable Knockout: 13 mm (½") (2 x)
Assembly: 51 mm (2") tube or flat surface
Identification: SS tag
Enclosure: NEMA 7X (IP68)
Power Consumption: 3.5 VA
Weight: 1.9 kg (4.3 lb)
Electrical Power: 90 to 240 Vac (50/60 Hz)
Working Temperature: 5 to 40°C (41 to 104°F)
Relative Humidity: 20 to 80%

Analyzer/Transmitter
Display Alphanumeric: 2 lines x 16 characters
Range: 0 to 60 mg O2/L
Resolution: 0.1 or 0.01
Relative Precision: 0.02% (full scale)
Working Temperature: 50°C (122°F)
Auto Temperature Compensation: 50°C (122°F)
Measuring Principle: Clark polarographic cell
Response Time: 20 s (programmable)
Barometric Pressure Compensation: Up to 10.000 m
Signal Output Analogic: 4 to 20 mA with programmable output range for all reading range
Galvanic Isolation: 2000 Vac (by opto coupler)
Line Resistance: 1 k&trodeks;

Controller
Actuation Type Frequency: Modulation, P+D
Set-Points: 2 independent from 0 to 100% of scale
Outputs: 2 control ON/OFF, programmable for alarm or actuation P+D
Control for Automatic Cleaning: Timer ON/OFF, for periods up to 99 seconds, and in intervals up to 99 hours

Cell
Type: Immersion
Body material: polypropylene (PP) or 316 SS
Maximum Temperature: (@ 1 ATM) 50°C (122°F)
Body Length: 1.5 m (59"), standard
Auto Cleaning System: Activated by a solenoid valve
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