"WTW" (1048 results)

Potentiostatic D.O. sensor with integrated temperature sensor

Design according to the minimum requirements defined by ATV (Waste water association) in bulletin M 256 for meters to be used at waste water treatment plants

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
- Sensor monitoring function (SensCheck)
- Zero current free electrode system
- Exchangeable membrane head with robust 50 um special membrane
- Lowest 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):
- 180 seconds

Sensor length:
- 196mm

Connection cable:
- 15m long, 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 ... 60mg O2/l
- 0 ... 600 % saturation

Response time (t90):
- 180 seconds

Sensor length:
- 196mm

Connection cable:
- 15m long, with watertight plug (IP65)

Type of protection:
- IP 68 (sensor)

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

Professional, field proven DO-meter with backlit LCDgraphic display, for mobile measurement with data logger and waterproof USB-interface

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
- Driver software for USB
- Cable

4-electrode-conductivity cell with built-in temperature sensor, 1.5 m (4.5 ft) cable, water proof plug, cell constant k= 0.475 cm-1, for application in acidic environments, head made of PEEK.

Technical buffer solution, 1 bottle with 1 l : pH 2.0

Technical buffer solution, 1 bottle with 50 ml: pH 4.01

Technical buffer solution, 1 bottle with 50 ml: pH 7.00

ORP combination electrode (platinum) for installation in depth armature series TA 197-pH, polymer electrolyte, pin hole junction