Products

DULCOTEST® Hydrogen Peroxide Sensors


Hydrogen Peroxide Measurement

The environmental hydrogen peroxide is used in process technology with increasing frequency as oxidant and reducing agent. We offer two measuring stations specific to your applicative requirements.

Application Areas

  • Gas scrubbers, e.g. in municipal and industrial purification generators
  • Cooling circuits, e.g. in food industries
  • Ground water decontamination
  • Drinking water oxidation
  • Utility water disinfection
  • Dechlorination, e.g. in chemical processes
  • Landfill-leachate
  • Biotechnology
  • NOX oxidation
  • Swimming pool water (active oxygen method)

A complete measuring station comprises:

Measuring Station PEROX H2O2

Controller D1C A X X H 1...
Measurement transducer + cable to controller PEROX-micro + Type LiYY 3 x 0.25 (791948)
Sensor shaft Type H 2.10 P, cpl. with diaphragm cap (792976)
Temperature sensor (optional) + cable Pt 100 (305001) + SN6-open end, 16 ft. (5 m) length (1003208)
Photometer for calibration (optional) DT 3 (1023143)
Solenoid mixer for calibration (optional)

Solenoid mixer 100-240 V/50-60 Hz (790915) fastening angle for solenoid mixer PVC, (1000166) solenoid stirring staff 15 x 6 PTFE 790917

Measuring Station PER

Controller D1C A X X H 7...
Measurement transducer Integrated into sensor
Sensor

Tupe PER 1-mA 200 ppm (1022509)/ Type PER 1-mA 2000 ppm (1022510)

Temperature sensor NTC, integrated into sensor
Housings + cable to controller DGM A or DLG III, 4 mm Ø, 2 x 0.25 mm2; cut googs (725122)
Photometer for calibration (optional) DT 3 (1023143)
Solenoid mixer for calibration (optional)

Solenoid mixer 100-240 V/50-60 Hz (790915) fastening angle for solenoid mixer PVC, (1000166) solenoid stirring staff 15 x 6 PTFE 790917

Our program offers the following advantages:

  • Sensors specified to your apllications
  • Exact and reliable real-time measurement (short response time)
  • Long-time stable measurement
  • Variable measuring ranges adjustable on just one sensor 20/200/2,000 mg/L and separate sensors available
  • Easy calibration by means of a complete photometer kit (type DT3)

 

DULCOTEST® Hydrogen Peroxide Measuring Cell PEROX H2O2, adjustable to three different measuring ranges.

Features

  • Measuring ranges 20 / 200 / 2,000 mg/L for most varying applications
  • pH range of 2 - 10 (alterable), applicable at constant pH up to 12
  • Mechanical and chemically resistance stainless steel shaft

Advantages

  • Efficient process guidance through precise amperometric real-time measurement (short response time)
  • No sensor disturbance by clouding or coloring thanks to amperometric measuring principle
  • No drifting thanks to a stable zero point
  • No disturbance by temperature due to integrated temperature compensation
  • Reduced dependence on flow and cross sensitivities through diaphragm covered electrodes
  • Fast commissioning thanks to short running-in period
  • Long lifetime thanks to diaphragm-separated electrodes from process surroundings as well as defined electrochemical conditions through electrolyte
  • Easy and cost-efficient maintenance through changing of diaphragm cap
  • Short delivery times enable near-term replacement
  • Special adjustment and own label for OEM partners

For detailed information on the sensor please see the download section.

Segmentation

The selection of the sensors is effected according to the following decision table:

Requirements Type PER 1 Type PER 2
Pollution and chemical burdened sample matrix Suitable thanks to waterproof diaphragm More susceptible as diaphragm not waterproof
Electric interference due to disturbance potential in measuring medium Unsusceptible as counter electrode separated from process

More susceptible as counter electrode is in medium

Temperature range Up to 122 °F (50 °C) Up to 104 °F (40 °C)
Easy handling during installation and maintenance Suitable thanks to temperature compensation and measuring transducer integrated into sensor Separate temperature sensor and measuring transducer
Response time for H2O2 for fast regulation Slow T90 = 6-8 min. Fast: T90 = 20 sec
Fast temperature changes Slow due to integrated temperature sensor Fast thanks to separate temperature sensor
Long process cycles without presence of H2O2 not suitable Suitable thanks to pulsated polarization technology
Measurement range may vary from time to time in various figures or is unclear at the time the order is placed Selection of the suitable sensor is necessary Suitable as measuring range can be changed manually from the sensor transducer
Price of the measuring station lower higher

 

 

Housings

DGMa Bypass Housing for Hydrogen Peroxide

Features Advantages and benefits  
  • Modularly designed housing for two sensors: hydrogen peroxide, temperature (PG 13.5 thread) and
  • Cost-effective and easy retrofitting thanks to variable modules
  • High measuring/process safety thanks to flow monitoring module
  • Robust against electric disturbances with potential balancing bolt
  • one flow monitor
  • Easy mounting (completely pre-mounted on panel)
  • Short response times of measurement thanks to low volume
  • Safe calibration of the sensor on the spot via sampling valve

DLG PER Bypass Housing

Features Advantages and benefits  
 
  • Cost-effective and easy retrofitting thanks to variable modules
  • High measuring/process safety thanks to flow monitoring module
  • Robust against electric disturbances with potential balancing bolt
 
  • Easy mounting (completely pre-mounted on panel)
  • Short response times of measurement thanks to low volume
  • Safe calibration of the sensor on the spot via sampling valve

 

 

Portable Measuring Devices

Photometer

Microprocessor-controlled Photometer for calibrating amperometric and fluoride measuring systems. Photometers are pre-assigned to defined verification procedures and include various measurements. (...more)

 

 

Multi-Parameter Controller diaLog DACa

The diaLog DACa controller uses intelligent controller functions to close the control circuit between ProMinent DULCOTEST® sensors and ProMinent® metering pumps. (...more)

 

Single-Channel Measuring and Control Instrument DULCOMETER® Type D1Cb/ D1Cc

The DULCOMETER® Type D1Cb is suitable for applications in drinking water, wastewater and cooling water treatment. The single-channel measuring and control unit D1Cb is equipped for all-important measured variables for basic applications in water treatment and with an error and calibration log book (...more)

 

Measuring and control device DULCOMETER® Compact

The new measuring and control device DULCOMETER® Compact for pH and redox measured variables is equipped with the standard functions for use in water treatment plants, allowing the operator to switch between the measured variables pH and redox, and between P and PID control characteristics. (...more)

Brochures

Cut Sheet: Chlorine Analyzer Packages | Part #: 7750243 | Updated: 12/12/16
Cut Sheet: DACa Controller | Part #: 7750242 | Updated: 9/10/13
Cut Sheet: Dulcometer Controllers | Part #: 7750240 | Updated: 7/12/13

Catalog Section

Dulcometer Controllers: DACa Controller | Part #: xxxxxx | Updated: 8/5/13

Instructional Videos

Video: D1Ca | Part #: xxxxxx | Updated: 4/23/13
Video: DACa Controller - Part 1 - Overview (WEBINAR) | Part #: xxxxxx | Updated: 8/7/13
Video: DACa Controller - Part 2 - Identity Code (WEBINAR) | Part #: xxxxxx | Updated: 8/14/13
Video: DACa Controller - Part 3 - Controller Comparison (WEBINAR) | Part #: xxxxxx | Updated: 8/21/13
Video: DACa Controller - Part 4 - Live Demo (WEBINAR) | Part #: xxxxxx | Updated: 8/28/13
Video: DT1 - 4 Photometric Test Kits | Part #: xxxxxx | Updated: 7/11/14
Video: Setting Up A New DACa Controller (WEBINAR) | Part #: xxxxxx | Updated: 12/13/13

Manuals And Instructions

Manual: D1C Setting Record | Part #: 987205 | Updated: 7/1/05
Manual: D1Cb & D1Cc O&M | Part #: 986362 | Updated: 9/1/11
Manual: D1Cb/D1Cc | Part #: 986362 | Updated: 9/11/14
Manual: D2C Part 1: French & English | Part #: 987613 | Updated: 12/1/08
Manual: D2C Part 2 Chlorine | Part #: 986846 | Updated: 12/1/08
Manual: D2C Part 2 PH/Chlorine | Part #: 987855 | Updated: 7/19/13
Manual: D2C Part 2 PH/Chlorine Dioxide | Part #: 986736 | Updated: 1/6/14
Manual: D2C Part 2 PH/ORP | Part #: 987822 | Updated: 10/1/08
Manual: D2C Part 2 PH/pH | Part #: 987661 | Updated: 1/7/14
Manual: D2C Settings Deocumentation | Part #: 987279 | Updated: 4/3/14
Manual: DACa Controller O&M | Part #: 985250 | Updated: 4/1/14
Manual: DACa Controller O&M Supplementary Instructions: Web Interface/LAN | Part #: 983683 | Updated: 1/28/16
Manual: Fluoride Panel English | Part #: 987315 | Updated: 10/1/08
Manual: Part 2: Adjustment & Operation Bromine | Part #: 987353 | Updated: 2/1/07
Manual: Part 2: Adjustment & Operation Chlorine | Part #: 987905 | Updated: 3/1/09
Manual: Part 2: Adjustment & Operation Chlorine Dioxide | Part #: 981734 | Updated: 6/1/07
Manual: Part 2: Adjustment & Operation Chlorite | Part #: 987028 | Updated: 3/5/14
Manual: Part 2: Adjustment & Operation Conductivity Conductive | Part #: 987926 | Updated: 4/1/08
Manual: Part 2: Adjustment & Operation Fluoride | Part #: 987306 | Updated: 5/1/07
Manual: Part 2: Adjustment & Operation H2O2 Peracetic Acid (PAA) | Part #: 987936 | Updated: 12/1/08
Manual: Part 2: Adjustment & Operation H2O2 Peri (Peroxide) | Part #: 986847 | Updated: 11/1/07
Manual: Part 2: Adjustment & Operation Inductive Conductivity | Part #: 986954 | Updated: 10/1/08
Manual: Part 2: Adjustment & Operation Oxygen | Part #: 987139 | Updated: 7/1/07
Manual: Part 2: Adjustment & Operation Ozone | Part #: 987698 | Updated: 12/1/07
Manual: Part 2: Adjustment & Operation PAA | Part #: 986976 | Updated: 3/9/14
Manual: Part 2: Adjustment & Operation PH | Part #: 987907 | Updated: 3/1/07
Manual: Part 2: Adjustment & Operation Redox/ORP | Part #: 987850 | Updated: 10/1/10
Manual: Part 2: Adjustment & Operation Standard Signal | Part #: 987528 | Updated: 4/1/07
Manual: Part 2: Adjustment & Operation Temperature | Part #: 981809 | Updated: 4/1/07
Manual: Pause Normal Hold Function | Part #: - | Updated: Unknown

Quickstart Guide

Quickstart Guide: Calculating PID Values For D1C Cl | Part #: None | Updated: Unknown
Quickstart Guide: Calculating PID Values For D1C PH | Part #: None | Updated: Unknown
Quickstart Guide: Calculating PID Values For D1C Redox | Part #: None | Updated: Unknown
Quickstart Guide: Calculating Proportional Values For Cl | Part #: None | Updated: Unknown
Quickstart Guide: CDN CLE Quick Start | Part #: None | Updated: Unknown
Quickstart Guide: CDN CTE Quick Start | Part #: None | Updated: Unknown
Quickstart Guide: D1C PH Calibration Quick Start | Part #: None | Updated: Unknown
Quickstart Guide: ORP Quick Start | Part #: 7750088 | Updated: Unknown

Sensor Manuals And Instructions

Data Sheet: Data Sheet PH Senosr With Vario Pin Head | Part #: 987501 | Updated: 5/1/00
Data Sheet: Data Sheet Vario Pin Connections | Part #: 987625 | Updated: 9/1/99
Parts List: DGMa Manual Parts List From July 03 | Part #: 987356 | Updated: 10/1/11
Sensor Manual: BRE 1 And 2 MA Sensors | Part #: 987341 | Updated: 8/6/14
Sensor Manual: CDE 2 And 3 MA Sensors | Part #: 986656 | Updated: 8/1/08
Sensor Manual: CGE2 MA And 4P Sensors | Part #: 987354 | Updated: 9/1/07
Sensor Manual: CLE 3 1 Manual | Part #: 987320 | Updated: 2/1/09
Sensor Manual: CLE CTE CGE CAN Sensors Supplement | Part #: XXXXXX | Updated: 11/4/14
Sensor Manual: CLT 1 Manual | Part #: 987069 | Updated: 10/1/09
Sensor Manual: CTE 1 MA And DMT Sensors | Part #: 987371 | Updated: 12/1/09
Sensor Manual: CTE 1 Short Manual | Part #: 987690 | Updated: 2/1/99
Sensor Manual: Data Sheet LFT 1 FE | Part #: 987884 | Updated: 4/1/99
Sensor Manual: Data Sheet Pt 1000 SE | Part #: 986685 | Updated: 5/6/14
Sensor Manual: DO 1 And 2 Sensors | Part #: 987199 | Updated: 1/4/14
Sensor Manual: Fluoride Sensor | Part #: 986544 | Updated: 6/8/14
Sensor Manual: Fluoride Transducer | Part #: 987342 | Updated: 8/3/14
Sensor Manual: ICT 2 Conductivity Sensor | Part #: 986948 | Updated: 12/1/10
Sensor Manual: ICT IMA Conductivity Sensor | Part #: 986949 | Updated: 7/4/14
Sensor Manual: ICT1 Conductivity Sensor | Part #: 986955 | Updated: 12/1/09
Sensor Manual: LF Conductivity Sensor | Part #: 987823 | Updated: 9/6/14
Sensor Manual: Measuring Transducer 4-20mA FP V/1 FP 100 V1 | Part #: 986545 | Updated: 7/8/14
Sensor Manual: OZE 3 MA And OZE 2 4P Manual | Part #: 981815 | Updated: 7/1/96
Sensor Manual: PAA 1 Sensor | Part #: 986961 | Updated: 10/1/08
Sensor Manual: PER 1 Sensor | Part #: 986884 | Updated: 12/1/09
Sensor Manual: PH ORP Temp Transducer 4L | Part #: 987467 | Updated: 12/1/00

Frequently Asked Questions

Standard Lead Times for Products / Expediting

Standard lead times are listed below. If you need an order expedited, please contact your customer service representative. Please be aware that overnight shipments receive priority over ground shipments. Gala/Beta/Concept - 3 days Sigma series - 5 days ProMus - 2 weeks Dulcometer 3-4 days

When discharging to atmosphere, what steps will improve repeatability of dosing?

Installing a spring in the discharge valve of the pump gives some improvement, but for the maximum improvement, a backpressure valve should be installed at the end of the line.

What variables can be measured or controlled with ProMinent equipment?

We can measure or control pH, Redox, Free or Total Chlorine, Chlorine Dioxide, Conductivity, Ozone, Peracetic Acid, Hydrogen Peroxide and Dissolved Oxygen.

Can you explain what the different options are using the Ident-code for the D1C controller?

The Identcode for a D1C has 13 parameters that can be specified. The first parameter is the type of mounting such as wall or panel mount. Then the operating Voltage must be selected. The measured variable is the parameter being measured such as pH, chlorine, Redox ? The next selection is the connection of measured variable, which selects how the sensor is wired, such as an SN6 connector. The correction variable selects whether there is pH or temperature correction. The next variable is feed forward capability. This signal can be used for metering proportional to the flow rate. The control input allows control by contact closure. The signal output function can be set up as measured, controlled or correction variable. The power control variable pertains to the alarm functions and how and what they control. The pump control option is set up for whether pumps will be controlled. The control characteristic sets the pump up for proportional control band or the more sophisticated PID control. The interface is not used at this time. The last variable allows for the selection of the language.

When programming the D1C, what options can I enable or disable?

The D1C controller can be set up for a complete operating menu or a reduced menu. The reduced operating menu permits operation of the most important parameters, but will not allow the operator to change system parameters that are normally set up once, during initial installation. The complete operating menu allows all parameters to be changed.

What is feed forward control?

This signal can be used for metering proportional to the flow rate.

What option is required on controllers when you want to connect to a chart recorder?

The controller must have the signal output option for measured value for recording or two mA outputs.

What do I need to order with a D1C?

SEE WORD DOC

What do I need to order with a D2C?

SEE WORD DOC

I am working with a ProMinent D1C controller and controlling pH. I keep getting a check sensor error. What is causing this problem?

The problem may be that the checkout time is set too low. This feature is used to detect a defective sensor: if the value is set to 1 second, the processor looks for changes on the sensor readings; if the display does not change during this interval, a check sensor will result. This feature can be set from 1 to 9999 seconds or turned off in the measure value mode of the controller. Turn the checkout time to off or set the measured time to at least 60 seconds, so the sensor is checked once a minute instead of once every second.

Where are conductivity controllers most commonly used?

Conductivity controllers are used in industries including, paper, pharmaceutical, plating, electronics, breweries, power production, and plating. Two very popular applications are bottle washing and cooling towers.