Description:
The sulfide selective electrode is a solid state membrane electrode. The membrane consists of a robust highly compressed Ag2S sensor element embedded in a plastic shaft by means of a special resin. A silver contact layer is used for potential discharge.

Range:

1·10-6…0,1 mol/l, 0,03…3.200 mg/l

Slope:

27 ± 2 mV/p S2-

Response Time:

< 30 s (in 32 mg/l S2—Solution)

Stability:

± 0,3 mV (30 min), ± 1 mV (24 h)

Interfering ions:

H+(H2S formation)

pH:

7..14

Temperature:

0…50 °C

Resistance:

< 0,1 MΩ

Sensor:

Ag2S

Shaft material:

Plastics (black)

Dimension:

Length: 145 mm
Diameter: 12 mm
Immersion depth: 120 mm

Description:
The silver selective electrode is a solid state membrane electrode. The membrane consists of a robust highly compressed Ag2S sensor element embedded in a plastic shaft by means of a special resin. A silver contact layer is used for potential discharge.

Range:

1·10-6…0,1 mol/l, 0,1…10.000 mg/l

Slope:

57 ± 2 mV/p Ag+

Response Time:

< 30 s (in 107 mg/l Ag+- Solution)

Stability:

± 0,3 mV (30 min), ± 1 mV (24 h)

Interfering ions:

Hg2+, OH-(precipitates)

pH:

1..7

Temperature:

0…50 °C

Resistance:

< 0,1 MΩ

Sensor:

Ag2S

Shaft material:

Plastics (black)

Dimension:

Length: 145 mm
Diameter: 12 mm
Immersion depth: 120 mm

Description:
The sodium selective electrode is a matrix membrane electrode with a fluid contact. The flexible sodium selective membrane is made from a special ion exchanger who is dissolved in an organic solvent and embedded into a PVC matrix

Range:

10-4…1 Mol/l, 5…20.000 mg/l

Slope:

55 ± 3 mV/p Na+

Response Time:

< 30 s (in 230 mg/l Na+-Solution)

Stability:

± 0,5 mV (30 min), ± 1 mV (24 h)

Interfering ions:

Ca2+/Na+= 1.000
Mg2+/Na+= 1.000
NH4+/Na+= 50
K+/Na+= 50
Ion/Na+- Relation between interfering
and measure ions at 10 % error

pH:

4..10

Temperature:

0…40 °C

Resistance:

~ 1 MΩ

Sensor:

organic ion exchanger in a special solvent,
homogeneously distributed in PVC

Shaft material:

Plastics (black)

Dimension:

Length: 145 mm
Diameter: 12 mm
Immersion depth: 120 mm

Description:
The nitrate selective electrode is a matrix membrane electrode with a solid contact. The flexible nitrate selective membrane is made from a special organic ion exchanger which is dissolved in an organic solvent and embedded in a PVC matrix.

Range:

1·10-5…1 mol/l, 0,4…60.000 mg/l

Slope:

57 ± 2 mV/p NO3-

Response Time:

< 30 s (in 62 mg/l NO3-- Solution)

Stability:

± 0,3 mV (30 min), ± 1 mV (24 h)

Interfering ions:

Cl-/ NO3-= 100
NO2-/ NO3-= 10
Ion/NO3Relation between interfering
and measure ions at 10 % error

pH:

3..10

Temperature:

0…40 °C

Resistance:

< 1 MΩ

Sensor:

oorganic ion exchanger in a special solvent,
homogeneously distributed in PVC

Shaft material:

Plastics (black)

Dimension:

Length: 145 mm
Diameter: 12 mm
Immersion depth: 120 mm

Description:
The cupric selective electrode is a solid state membrane electrode. The membrane consists of a robust highly compressed Cu2Se/Ag2Se sensor element embedded in a plastic shaft by means of a special resin. A silver contact layer is used for potential discharge.

Range:

1·10-6…1·10-1mol/l, 0,1…6000 mg/l

Slope:

27 ± 2 mV/p Cu2+

Response Time:

< 30 s (in 600 mg/l Cu2+- Solution)

Stability:

± 0,3 mV (30 min), ± 1 mV (24 h)

Interfering ions:

Zn2+/Cu2+= 5000
Cd2+/Cu2+= 5000
Cl-, Br-, J-/Cu2+= 500
Pb2+/Cu2+= 200
Ag+, Hg2+, S2-(precipitates)
Ion/Cu2+-Relation between interfering
and measure ions at 10 % error

pH:

2 .. 14

Temperature:

0…50 °C

Resistance:

< 0,1 MΩ

Sensor:

Cu2Se/Ag2Se

Shaft material:

Plastics (black)

Dimension:

Length: 145 mm
Diameter: 12 mm
Immersion depth: 120 mm

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Established in 2010, Vista Mehr Negar aims to revolutionize meteorological and hydrological solution for  the world market. Vista Mehr Negar  is  proud  to  be a leader  in  real-time, full IP and  web-based  Automatic  Weather System (AWS) and Automated Weather Observation  System  (AWOS).  Our key strength lies in the meteorological expertise  along  with strong  software and hardware skills, proved by the success of developing our own suites of  related  products  with  the  latest  technologies. We are now ready to reach for the  global  market with our proven suites of products & services. What  has  always  defined  Vista Mehr Negar  is its ability to constantly improve in offering their services, systems and technologies to present the most sensible solutions

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