Dot-x SERIES Spécifications Page 1

DOTX-45 Dissolved Oxygen Transmitter

DOTX-45 - 9 - Part 2 – Analyzer Mounting 2.1 General The DOTX-45 system offers maximum mounting flexibility. A bracke

DOTX-45 Dissolved Oxygen System Part 2– Analyzer Mounting DOTX-45 10 - Figure 2-1 Enclosure Dimensions, AC Powered Units

DOTX-45 Dissolved Oxygen System Part 2– Analyzer Mounting DOTX-45 11 - Figure 2-2 Enclosure Dimensions, 2-Wire Units

DOTX-45 Dissolved Oxygen System Part 2– Analyzer Mounting DOTX-45 12 - 2.2 Wall or Pipe Mount A PVC mounting bracket with attachment screw

DOTX-45 Dissolved Oxygen System Part 2– Analyzer Mounting DOTX-45 13 - Figure 2-4 Wall Mounting Diagram Figure 2-5 Pipe Mounting Diagra

DOTX-45 Dissolved Oxygen System Part 2– Analyzer Mounting DOTX-45 14 - 2.4 Panel Mount, AC Powered Monitor Panel mounting of an AC powered m

DOTX-45 - 15 - Part 3 – Sensor Mounting 3.1 General Select a location within the maximum sensor cable length for mount

DOTX-45 - 16 - Part 4 – Electrical Installation 4.1 General The DOTX-45 is powered in one of two ways, depending on the

DOTX-45 Dissolved Oxygen System Part 5 – Sensor Assembly DOTX-45 17 - Figure 4-1 Loop-Power Connection Notes: 1. Voltage between Termin

DOTX-45 Dissolved Oxygen System Part 5 – Sensor Assembly DOTX-45 18 - Figure 4-2 Submersible Sensor Connection 4.21 Load Drive The amo

DOTX-45 Dissolved Oxygen System Part 5 – Sensor Assembly DOTX-45 19 - For example, if the power supply voltage is 24 VDC, first subtract

DOTX-45 Dissolved Oxygen System Part 5 – Sensor Assembly DOTX-45 20 - The analog outputs from the system are present at terminals TB1 and TB2.

DOTX-45 Dissolved Oxygen System Part 5 – Sensor Assembly DOTX-45 21 - Two sets of SPDT relay contacts are provided on the power supply board.

DOTX-45 Dissolved Oxygen System Part 5 – Sensor Assembly DOTX-45 22 - Cord-grips used for sealing the cable should be snugly tightened after

DOTX-45 Dissolved Oxygen System Part 5 – Sensor Assembly DOTX-45 23 - Part 5 – Sensor Assembly 5.1 Oxygen Sensor P

DOTX-45 Dissolved Oxygen System Part 5 – Sensor Assembly DOTX-45 24 - Figure 5-2 Submersible Sensing Module Assembly Follow the proce

DOTX-45 Dissolved Oxygen System Part 5 – Sensor Assembly DOTX-45 25 - 6. Slowly screw the chamber onto the sensor body. A small amount of ele

DOTX-45 - 26 - Part 6 – Configuration 6.1 User Interface The user interface for the DOTX-45 instrument consists of a

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 27 - 6.11 Keys All user configurations occur through the use of four membrane k

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 28 - Lower Line During normal operation, the lower line of the display indicate

DOTX-45 - 2 - Table of Contents PART 1 - INTRODUCTION ...

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 29 - Relay Area A/B The relay area contains two icons that indicate the state

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 30 - Any data that may be changed will be flashing. This flashing indicates use

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 31 - Start(display only)MEASURECAL CONFIG DIAGor ororCal D.O.*PID 0% #1Set Hol

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 32 - 6.22 Measure Menu [MEASURE] The default menu for the system is the displa

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 33 - % Saturation The most common display of D.O. in water is either PPM or mg

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 34 - 6.24 Configuration Menu [CONFIG] The Configuration Menu contains all o

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 35 - close to the same. However, programming for type 3 percent saturation chan

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 36 - Note: If the user will not be changing solution conductivity dramatica

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 37 - AC OPERATED UNITS ONLY *Relay B Mode Relay B can be used in a number

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 38 - though the controller can achieve 0% or 100% anywhere within the range.)

DOTX-45 3 - 6.24 Configuration Menu [CONFIG] ...

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 39 - and therefore, it is best in most cases to leave it at the default value.

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 40 - delay setting for the controller. The entry value is limited to a value be

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 41 - If Relay A Mode is set to Alarm Mode, AL, then the following settings

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 42 - 6.26 Diagnostics Menu [DIAG] The diagnostics menu contains all of the

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 43 - which the diagnostic system re-detects them. The exception to this rule i

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 44 - Fail Out This function enables the user to define a specified value tha

DOTX-45 Dissolved Oxygen System Part 6 – Configuration DOTX-45 45 - When failsafe is selected to be ON, the normally-open contacts of the rel

DOTX-45 - 46 - Part 7 – Calibration 7.1 Oxygen Calibration Once power is applied, the sensor must be given time to s

DOTX-45 Dissolved Oxygen System Part 7 –Calibration DOTX-45 47 - 4. Press the ENTER key. The screen will display a flashing 1-spl for 1-point,

DOTX-45 Dissolved Oxygen System Part 7 –Calibration DOTX-45 48 - 2. Cover the sensor, if necessary, to shield it from the direct rays of the su

DOTX-45 - 4 - Part 1 - Introduction 1.1 General The Model DOTX-45 is a highly versatile on-line monitoring system de

DOTX-45 Dissolved Oxygen System Part 7 –Calibration DOTX-45 49 - These steps below assume that the sensor has been prepared in accordance with

DOTX-45 Dissolved Oxygen System Part 7 –Calibration DOTX-45 50 - 7.2 Temperature Calibration The temperature calibration sequence is essent

DOTX-45 - 51 - Part 8 – PID Controller Details 8.1 PID Description PID control, like many other control schemes, is u

DOTX-45 Dissolved Oxygen System Part 8 –PID Controller DOTX-45 52 - ++=∫dttdeDtdteItePoutput)()()(1)( Where: output = control

DOTX-45 Dissolved Oxygen System Part 8 –PID Controller DOTX-45 53 - D Derivative gain. The addition of derivative control can be problematic

DOTX-45 Dissolved Oxygen System Part 8 –PID Controller DOTX-45 54 - 8.4 Manual PID Override Control The DOTX-45 electronics is equipped desi

DOTX-45 Dissolved Oxygen System Part 8 –PID Controller DOTX-45 55 - The easiest process’ to control with closed-loop schemes are generally

DOTX-45 - 56 - Part 9 – System Maintenance 9.1 General The DOTX-45 Dissolved Oxygen System will generally provide una

DOTX-45 Dissolved Oxygen System Part 10– Troubleshooting DOTX-45 57 - While the sensor is disassembled for membrane changing, examine the cond

DOTX-45 Dissolved Oxygen System Part 10– Troubleshooting DOTX-45 58 - Part 10 – Troubleshooting 10.1 General The inf

DOE-45PA/DOTX-45 Dissolved Oxygen System Part 1 – Introduction DOTX-45 5 - • AC power option provides dual SPDT relay operation and one addition

DOTX-45 Dissolved Oxygen System Part 10– Troubleshooting DOTX-45 59 - 5. If rigid conduit has been run directly to the DOTX-45 enclosure,

DOTX-45 Dissolved Oxygen System Part 10– Troubleshooting DOTX-45 60 - 2. If analyzer does not appear to power up (no display), remove powe

DOTX-45 Dissolved Oxygen System Part 10– Troubleshooting DOTX-45 61 - MESSAGE DESCRIPTION POSSIBLE CORRECTION Max is 200 Entry failed, maximu

DOTX-45 Dissolved Oxygen System Part 10– Troubleshooting DOTX-45 62 - MESSAGE DESCRIPTION POSSIBLE CORRECTION D.O. Cal Fail Failure of oxygen

DOTX-45 Dissolved Oxygen System Part 10– Troubleshooting DOTX-45 63 - the nominal output of the sensor will be about +400mVDC when measured in

DOTX-45 Dissolved Oxygen System Part 10– Troubleshooting DOTX-45 64 - If you suspect that water has gotten into a cable connection or

DOTX-45 Dissolved Oxygen System Part 10– Troubleshooting DOTX-45 65 - Water Saturated Concentration of O2 Temperature PPM Temperature PPM °F

DOTX-45 - 66 - Spare Parts DOTX-45 Transmitter, Loop-powered DOTX-45-115VAC-R2 Monitor, 115 VAC, Dual Relays/Out

DOTX-45 Dissolved Oxygen System Part 10– Troubleshooting DOTX-45 67 -

DOTX-45 Dissolved Oxygen System Part 10– Troubleshooting DOTX-45 68 - M-3693/0409

DOE-45PA/DOTX-45 Dissolved Oxygen System Part 1 – Introduction DOTX-45 6 - 1.4 System Specifications (Common to all variations) Display

DOE-45PA/DOTX-45 Dissolved Oxygen System Part 1 – Introduction DOTX-45 7 - Sensor 2-electrode galvanic membrane sensor for direct measurement

DOE-45PA/DOTX-45 Dissolved Oxygen System Part 1 – Introduction DOTX-45 8 - Analog Outputs Two 4-20 mA outputs. Output one programmable for P