"WTW" (1044 results)

Potentiostatic D.O. sensor with integrated temperature sensor

Design according to the minimum requirements for measuring instruments used at waste water treatment plants defined by ATV (waste water association) in bulletin M256

Potentiostatic D.O. sensor (3-electrode principle)
- To be connected to the EcoLine® or QuadroLine® series measuring transmitters
* Especially suitable for use in denitrification and for oxygen addition measurements
* With integrated temperature sensor and built-in preamplifier for low impedance, interference-free signal transmission

Equipped with the following features:
- Integrated lightning protection
- Sensor monitoring function (SensCheck)
- Zero current free electrode system
- Exchangeable membrane head with robust 25um special membrane
- Extremely short response time
- Low incident flow required
- Double thermistor system for temperature compensation
- OxiCal air calibration without accessories

Measuring range (25°C):
- 0 ... 60mg O2/l
- 0 ... 600 % saturation

Response time (t90):
- 30 seconds

Sensor length:
- 196mm

Connection cable:
- 7m, with watertight plug (IP 65)

Type of protection:
- IP 68 (sensor)

Potentiostatic D.O. sensor with integrated temperature sensor

Design according to the minimum requirements for measuring instruments used at waste water treatment plants defined by ATV (waste water association) in bulletin M256

Potentiostatic D.O. sensor (3-electrode principle)
- To be connected to the EcoLine® or QuadroLine® series measuring transmitters
* With integrated temperature sensor and built-in preamplifier for low impedance, interference-free signal transmission

Equipped with the following features:
- Integrated lightning protection
- Zero current free electrode system
- Exchangeable membrane head with robust 50um special membrane
- Lowest incident flow required
- Double thermistor system for temperature compensation
- OxiCal air calibration without accessories

Measuring range (25°C):
- 0 ... 60 mg O2/l
- 0 ... 600 % saturation

Response time (t90):
- 180 seconds

Sensor length:
- 196mm

Connection cable:
- 7m long, with watertight plug (IP65)

Type of protection:
- IP 68 (sensor)

Glass pH combination electrode with liquid electrolyte, S7 plug head. Length 120 mm, without cable

Application recommended by WTW:
Acids, Beer, Beverages, Coffee extract, Drinking water, Electroplating baths, Fruit juice, Detergents , Juice, Soft drinks, Mineral water, Paper extract, Protein-containing liquids, Salt solutions, Surface water, Tapwater, Vegetable juice, Wine, Yogurt.

Also suitable for:
Ammonia, Aquarium water, Bleach solution, Boiler feedwater, Developer, Electroplating wastewater, Extracts, Fixing baths, Groundwater, Non-aqueous liquids, Rainwater, Seawater, Soil extract, Swimming pool water, Wastewater.

Glass pH combination electrode with liquid electrolyte, BNC plug. Length 120 mm, 3.3 ft (1 m) cable

Application recommended by WTW:
Acids, Beer, Beverages, Coffee extract, Drinking water, Electroplating baths, Fruit juice, Detergents , Juice, Soft drinks, Mineral water, Paper extract, Protein-containing liquids, Salt solutions, Surface water, Tapwater, Vegetable juice, Wine, Yogurt.

Also suitable for:
Ammonia, Aquarium water, Bleach solution, Boiler feedwater, Developer, Electroplating wastewater, Extracts, Fixing baths, Groundwater, Non-aqueous liquids, Rainwater, Seawater, Soil extract, Swimming pool water, Wastewater.

Glass pH combination electrode with liquid electrolyte, waterproof DIN plug. Length 120 mm, 3.3 ft (1 m) cable

Application recommended by WTW:
Acids, Beer, Beverages, Coffee extract, Drinking water, Electroplating baths, Fruit juice, Detergents , Juice, Soft drinks, Mineral water, Paper extract, Protein-containing liquids, Salt solutions, Surface water, Tapwater, Vegetable juice, Wine, Yogurt.

Also suitable for:
Ammonia, Aquarium water, Bleach solution, Boiler feedwater, Developer, Electroplating wastewater, Extracts, Fixing baths, Groundwater, Non-aqueous liquids, Rainwater, Seawater, Soil extract, Swimming pool water, Wastewater.

Glass pH combination electrode with built-in temperature sensor, waterproof DIN plug and banana plug, length 120 mm, 3.3 ft (1 m) cable

Application recommended by WTW:
Acids, Beer, Beverages, Coffee extract, Drinking water, Electroplating baths, Fruit juice, Detergents , Juice, Soft drinks, Mineral water, Paper extract, Protein-containing liquids, Salt solutions, Surface water, Tapwater, Vegetable juice, Wine, Yogurt.

Also suitable for:
Ammonia, Aquarium water, Bleach solution, Boiler feedwater, Developer, Electroplating wastewater, Extracts, Fixing baths, Groundwater, Non-aqueous liquids, Rainwater, Seawater, Soil extract, Swimming pool water, Wastewater.

Glass pH combination electrode with liquid electrolyte, built-in temperature sensor, BNC plug and banana plug, length 120 mm, 3.3 ft (1 m) cable

Application recommended by WTW:
Acids, Beer, Beverages, Coffee extract, Drinking water, Electroplating baths, Fruit juice, Detergents , Juice, Soft drinks, Mineral water, Paper extract, Protein-containing liquids, Salt solutions, Surface water, Tapwater, Vegetable juice, Wine, Yogurt.

Also suitable for:
Ammonia, Aquarium water, Bleach solution, Boiler feedwater, Developer, Electroplating wastewater, Extracts, Fixing baths, Groundwater, Non-aqueous liquids, Rainwater, Seawater, Soil extract, Swimming pool water, Wastewater.

Cleaning head for online sensors

Design according to the minimum requirements for measuring instruments used at waste water treatment plants defined by ATV (waste water association) in bulletin M256

- CH cleaning head for online sensors with a shaft diameter of 40 mm

- The cleaning is done by means of external compressed air;
- The compressed air supply is controlled via a separate, electrically operated valve
- It is time-controlled by a relay of the series 170/296 measuring transmitters or the IQ SENSOR NET

The external compressed air supply can be provided via a compressed air line or a compressor
Requirements for this:
- dry compressed air
- free of oil and dust
- 3-7 bar
- approx. 40 NL/min

Photometric test kit for measurement of Chromate (chromium VI and total chromium Cr)
Available ranges:
0.05 - 2.00 mg/l Cr

Number of tests: 25 (Reaction cuvettes test)
Sample volume required: 10ml
Cuvette type: round

Compatible with photometers:
photoLab S6
photoLab S12
photoLab Spectral
pHotoFlex 0.05 - 2.00 mg/l Cr

Additional information:
For use with seawater.*

Reaction:
Diphenylcarbazide

Applications:
Wastewater, drinking water, *sea water: 14552 only chromate

Note:
Model 14552: contains all digestion reagents for total chromium. Model 14758: Crack set 10 and empty round cuvettes or Crack set 10-C are required for the determination (120 °C, 1 h)

Photometric test kit for measurement of Chromate (chromium VI and total chromium Cr)
Available ranges:
0.01 - 3.00 mg/l Cr

Number of tests: 250 (Reagent tests)
Sample volume required: 5ml
Cuvette type: 10mm, 20mm, 50mm

Compatible with photometers:
photoLab S12
photoLab Spectral

Additional information:
For use with seawater.

Reaction:
Chromosulfuric acid oxidation, analog to EN ISO 15705

Reaction:
Diphenylcarbazide

Applications:
Wastewater, drinking water, *sea water: 14552 only chromate

Note:
Model 14552: contains all digestion reagents for total chromium. Model 14758: Crack set 10 and empty round cuvettes or Crack set 10-C are required for the determination (120 °C, 1 h)

Photometric test kit for measurement of Arsenic
Available ranges:
0.001 - 0.100 mg/l As

Number of tests: 30 (Reagent tests)
Sample volume required: 350ml
Cuvette type: 10mm, 20mm

Compatible with photometers:
photoLab S12
photoLab Spectral
pHotoFlex 0.002 - 0.100 mg/l As

Additional information:

Note:
additionally needed: sulfuric acid 95-97% p.A. and Zinc, gran. p.A.

Reaction:
Hydrogen aresenic / silver diethyldithiocarbamate analog EN 26595 and EPA 206.4, US Standard Methods 3500-As

Applications:
Groundwater, surface water, drinking water, wastewater

Easy-to-operate, standard DO-meter with backlit LCD graphic display, for mobile routine measurement.
Set with CellOx® 325.
Instrument in field case with:
- Galvanic DO-probe CellOx® 325
- Electrolyte
- 3 exchange membrane heads
- Stand
- Beaker
Including short instruction manual, CD-ROM, batteries