GF Cảm biến đo độ cứng của nước – Conductivity / Resistivity sensor GF

GF Cảm biến đo độ cứng của nước – Conductivity / Resistivity sensor GF

GF Cảm biến đo độ cứng của nước – Conductivity / Resistivity sensor GF

Signet Conductivity/Resistivity electrodes are designed to provide versatile installation and accurate sensing across a very broad dynamic range. These electrodes are built with a controlled surface finish to ensure accuracy and repeatability. The standard electrode is constructed 316 SS or Titanium, but there are other materials available for maximum chemical compatibility

Signet 2818-2823 Conductivity/Resistivity Electrodes
are designed to provide versatile installation and
accurate sensing across a very broad dynamic range.
These electrodes are built with a controlled surface
finish to ensure accuracy and repeatability. The
standard electrode is constructed 316 SS or Titanium,
but there are other materials available for maximum
chemical compatibility.
Reversible threads or sanitary flanges allow for
maximum installation versatility. Sanitary flange
versions are available with surface quality finish of
less than RA 25 and with an optional NIST Traceability
Certificate to meet USP requirements. Coupled with
Signet patented measuring circuitry, a three decade
measurement range is achieved without the need for
troublesome electrode platinization. A platinum RTD
(PT1000) located within the electrode allows optimal
temperature sensing.

Models 3-2818-1( 0.01 cm-1 Cell), 3-2819-1* (0.01 cm-1 Cell), 3-2820-1* (0.1 cm-1 Cell), Models 3-2821-1* (1.0 cm-1 Cell)
* Certified versions available (add “C” suffix to part no.)
General
Operating Range 3-2818, 3-2819 0.055 to 100 μS 18.2 MΩ to 10 KΩ 0.02 to 50 ppm
3-2820 1 to 1000 μS 1 MΩ to 1 KΩ 0.5 to 500 ppm
3-2821 10 to 10,000 μS 5 to 5,000 ppm
Cell Constant Accuracy ±2% of reading (certified cells ±1%)
Temperature Compensation Device PT1000
Cable Length
(use for the 2818,
19, 20, 21, 22 and
23)
3-2818, 3-2819-1 sensors 7.6 m (25 ft) max. when used with 8850, 8860. No splicing of cable.
Call factory for special order sensor
standard 4.6 m (15 ft)
maximum 30 m (100 ft) all other sensors (except 2818 and 2819 max. 7.6 m (25 ft)

Mfr. Part No. Code Cell
Constant Sensor Material and Mounting Insertion into Tee size
3-2818-1** 159 001 718 0.01 cm-1 316 SS electrode, ¾ in. in-line only
3-2819-1 198 844 010 0.01 cm-1 316 SS electrode, ¾ in. threads in-line only
3-2819-1C 159 000 651 0.01 cm-1 316 SS electrode, ¾ in. threads (certified) in-line only
3-2819-S1 159 000 085 0.01 cm-1 316 SS electrode, Sanitary Tri-clamp flange 1 to 1½ in.
3-2819-S1C†* 159 000 087 0.01 cm-1 316 SS electrode, Sanitary Tri-clamp flange 1 to 1½ in.
3-2819-S2† 159 000 086 0.01 cm-1 316 SS electrode, Sanitary Tri-clamp flange 2 in.
3-2819-S2C†* 159 000 088 0.01 cm-1 316 SS electrode, Sanitary Tri-clamp flange 2 in.
3-2819-T1† 159 000 081 0.01 cm-1 Titanium electrode, Sanitary Tri-clamp flange 1 to 1½ in.
3-2819-T1C†* 159 000 083 0.01 cm-1 Titanium electrode, Sanitary Tri-clamp flange 1 to 1½ in.
3-2819-T2† 159 000 082 0.01 cm-1 Titanium electrode, Sanitary Tri-clamp flange 2 in.
3-2819-T2C†* 159 000 084 0.01 cm-1 Titanium electrode, Sanitary Tri-clamp flange 2 in.
3-2820-1 198 844 000 0.1 cm-1 316 SS electrode, ¾ in. threads in-line only
3-2820-1C 159 000 654 0.1 cm-1 316 SS electrode, ¾ in. threads (certified) in-line only
3-2820-S1 159 000 089 0.1 cm-1 316 SS electrode, Sanitary Tri-clamp flange 1 to 1½ in.
3-2820-S1C†* 159 000 091 0.1 cm-1 316 SS electrode, Sanitary Tri-clamp flange 1 to 1½ in.
3-2820-S2† 159 000 090 0.1 cm-1 316 SS electrode, Sanitary Tri-clamp flange 2 in.
3-2820-S2C†* 159 000 092 0.1 cm-1 316 SS electrode, Sanitary Tri-clamp flange 2 in.
3-2820-T1† 159 000 624 0.1 cm-1 Titanium electrode, Sanitary Tri-clamp flange 1 to 1½ in.
3-2820-T2† 159 000 625 0.1 cm-1 Titanium electrode, Sanitary Tri-clamp flange 2 in.
3-2821-1 198 844 001 1.0 cm-1 316 SS electrode, ¾ in. threads in-line only
3-2821-1C 159 000 650 1.0 cm-1 316 SS electrode, ¾ in. threads (certified) in-line only
3-2821-S1† 159 000 093 1.0 cm-1 316 SS electrode, Sanitary Tri-clamp flange 1 to 1½ in.
3-2821-S1C†* 159 000 095 1.0 cm-1 316 SS electrode, Sanitary Tri-clamp flange 1 to 1½ in.
3-2821-S2† 159 000 094 1.0 cm-1 316 SS electrode, Sanitary Tri-clamp flange 2 in.
3-2821-S2C†* 159 000 096 1.0 cm-1 316 SS electrode, Sanitary Tri-clamp flange 2 in.
3-2821-T1† 159 000 626 1.0 cm-1 Titanium electrode, Sanitary Tri-clamp flange 1 to 1½ in.
3-2821-T2† 159 000 627 1.0 cm-1 Titanium electrode, Sanitary Tri-clamp flange 2 in.
3-2822-1 198 844 002 10 cm-1 316 SS electrode with ¾ in. threads in-line or submersible
mounting only
3-2823-1 198 844 003 20 cm-1 316 SS electrode, ¾ in. reversible threads in-line or submersibl

2818-2823 Conductivity-Resistivity Electrodes

2839-1VD-2842-1V PVDF Conductivity Electrodes

2850 Conductivity-Resistivity Sensor Electronics and Integral Systems with PVDF

9900 Transmitter

Installation Fittings