"WTW" (1041 results)

Empty cuvettes for laboratory turbidimeter Turb 550, Turb 550 IR, Turb 555 and Turb 555 (IR) Delivery: 6 pcs

Wide-range power supply 100 to 240 V, 50/60 Hz for inoLab, 3xxi, 197i

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:
- 7m 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
* 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)

Single Unit Including Accessories BNC-inlet. The WTW inoLab® pH 7110 Benchtop Meter is highly suitable for routine measurements in the lab, where automatic documentation is not a priority. Less keys makes operation simple and safe with smooth, easy to clean surface.

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

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)