Cart  |  Contact  |  Help  |  Francais  | 
1-888-826-6342  | 

Your One-Stop Source for Process Measurement & Control

Dissolved Oxygen Transmitter, Analyzer and Controller


Dissolved Oxygen Transmitter, Analyzer and Controller | DOTX441

Dissolved Oxygen Transmitter, Analyzer and Controller

CAD1,370.00 DOTX441

2 year warranty
  • 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®
Dissolved Oxygen Measurement Instrumentation - View related products


The DOTX441 dissolved oxygen analyzer is supplied in a compact cast aluminum case. SAE 323, with low oxidation grade, anticorrosion treatment and finished with electrostatic epoxy paint. The DOTX441 is compact, light weight, rugged and IP-68 rated. The units include local display, transmitter output and controller function all programmed via a 3-button side panel with an easy self guided menu. The DOTX441 can be mounted on a 51 mm (2") tube or flat surface. Electrical connections are on the terminal bar located in the back housing of the instrument with cable entrance through two cable compression fittings of 13 mm (½") BSP. Common applications include food and drink, pulp and paper, chemical, sanitation, water and wastewater treatments.

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%

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 kΩ

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

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

Most Popular Models!

Place Order(Specify Model Number)
Part Number/ Desc.
DOTX441 Star
Availability: 1 week
Dissolved oxygen analyzer, transmitter and controller (sensor sold separately)
DOE-441 Star
Availability: 1 week
Dissolved oxygen sensor in a polypropylene body
DOE-441-S Star
Availability: 1 week
Dissolved oxygen sensor in a stainless steel body
DOE-441-R Star
Availability: 13 weeks
Replacement dissolved oxygen sensor for DOE-441 cell
DOM-441 Star
Availability: 13 weeks
Replacement cell maintenance kit
DOA-21RS Star
Availability: 13 weeks
Sensor refill solution
All dollar amounts on this site are shown in Canadian currency. Note: Comes complete with 304 SS clamps with nuts and bolts for mounting, and operator’s manual. Sensor sold separately.
Ordering Example: (1) DOE-441 Dissolved oxygen sensor in a polypropylene body, CAD1,790.00  plus (1) DOTX441 Dissolved oxygen analyzer, transmitter and controller, CAD1,370.00, CAD1,790.00 + 1,370.00 = CAD3,160.00