DULCOTEST® Sensors for Hydrogen Peroxide Measurement

Features

• Measuring ranges 20/ 200/ 2000 mg/l for most varying applications
• pH range of 1 - 11 (alterable), applicable at constant pH up to pH 12
• Sensor type for pollution-burdened process media available
• Maximum operation temperature up to 50°C

Advantages

• Efficient process guidance through precise amperometric realtime measurement (short response time)
• No disturbance by clouding or coloring thanks to amperometric measuring principle
• No drifts thanks to stable zero point
• No disturbance by temperature influence 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 changement of diaphragm cap
• Short delivery times enable near-term replacement
• Special adjustment and own label for OEM partners

Segmentation

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

	Type	Type
Requirements	PER 1	PEROX
Pollution and chemical burdened sample matrix	Suitable thanks to waterproof diaphragm	More susceptible as  diaphragm not water proof
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 50 °C	Up to 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 polarisation 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