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Hanna Instruments was the first instrumentation manufacturer to offer a 4-ring potentiometric probe with a conductivity meter. The potentiometric method of measuring electrical conductivity in liquids is by far the most accurate method available today. The four rings are aligned concentrically on the probe shaft. The two outer rings apply a voltage which creates a buffer field around the two inner rings. The inner rings pick up a current and measure the conductivity of the liquid inside the buffer field. This completely eliminates the polarization which occurs in the 2-ring amperometric method. Without polarization, the probe can also measure a larger range of conductivity because it does not suffer from electrolysis. This 4-ring method is used in all of the following probes.
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Weight:
0.33 Pounds |
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Dimensions:
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Weight Disclaimer: *Weight may vary based on configuration. |
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| SKU | Item | Price | |
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HI76310 |
HI 76310 : Conductivity/TDS probe for HI 9932 |
$313.00 |
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HI76302W |
HI 76302W : Detachable 4-ring ATC conductivity probe for HI 9033, HI 9034, HI 933300, HI 9130 with 3.3' (1 m) cable. |
$196.00 |
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HI76303 |
HI 76303 : Detachable 4-ring platinum ATC conductivity probe for HI 933100 & HI 9635 with 3.3' (1 m) cable. |
$236.00 |
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HI76300 |
HI 76300 : 4-ring EC probe for EC214 |
$231.00 |
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HI76301D |
HI 76301D : 4-ring EC probe for HI 8633 and HI 8734, DIN with 1m cable |
$107.00 |
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