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differential ORP sensors
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SD7420CD-ORP Differential ORP Probe with Direct 4-20mA Output

$690.00

Out of stock

When an ORP sensor is constantly measuring a wastewater treatment process, it will be exposed to chemicals, suspended solids, and other contaminants. These contaminants can cause fouling of the ORP sensor reference, leading to sensor failure. Differential ORP sensors utilize three electrodes instead of the conventional two. This special design allows the sensor reference (salt bridge) and buffered electrolyte solution to be replaced, which extends working lifetime. Our SD7420CD features differential sensor technology with a direct 4-20mA output, so it can be integrated into control systems without the use of a transmitter or controller.

  • True differential measurement technology using solution ground
  • Virtually zero ground loop measurement error
  • No transmitter or controller required
  • Constructed of durable Ryton® PPS
  • Two year limited warranty

Out of stock

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Sensorex SKU: SD7420CD-ORP

Product Description

When an ORP sensor is constantly measuring a wastewater treatment process, it will be exposed to chemicals, suspended solids, and other contaminants. These contaminants can cause fouling of the ORP sensor reference, leading to sensor failure. Differential ORP sensors utilize three electrodes instead of the conventional two. This special design allows the sensor reference (salt bridge) and buffered electrolyte solution to be replaced, which extends working lifetime. Our SD7420CD features differential sensor technology with a direct 4-20mA output, so it can be integrated into control systems without the use of a transmitter or controller.

  • Reliable measurement performance: True differential measurement technology using solution ground
  • High accuracy measurements: Differential measurement technique virtually eliminates ground loop measurement error
  • No transmitter or controller required: Direct 4-20mA output for simple integration
  • Resists aggressive chemicals: Constructed of durable Ryton® Polyphenylene Sulfide (PPS)
  • Two year limited warranty: We stand behind our products with the Sensorex Guarantee

 

  • Measurement Range: -2000mV to +2000mV
  • Temperature Range: 0-100⁰ C
  • Pressure Range: 0 – 100 PSIG @ 40⁰ C (PVC fitting); 0 – 100 PSIG @ 60⁰ C (CPVC fitting); 0 – 100 PSIG @ 100⁰ C (stainless steel fitting);
  • Body Construction: Ryton Polyphenylene Sulfide (PPS)
  • Temperature Compensation: 300Ω NTC
  • Connector: Tinned Leads
  • Cable Length: 20 feet (6 meters)
  • Power Supply (not included): 12 to 30 V DC (>24 V DC recommended)
  • Installation: 1 1/2″ NPT
  • Warranty: Two year limited warranty

SDS-7050 Refill Solution for SD7000 Salt Bridges (SDA-7001 / SDA-7003)

The SDS-7050 (differential sensor refill solution, 500mL) is perfect for use when replacing salt bridges. Our SDA series of replacement salt...

$67.00

Replaceable Salt Bridge for SD7000 Series pH and ORP Sensors

The SDA series of replacement salt bridges extend the lifetime for the SD7000 series of pH and...

$32.50$76.25

Specification Sheet for SD7420 Series Differential pH and ORP Sensors with Direct 4-20mA Output

  • Hach® 2428R0 LCP (Liquid Crystal Polymer) Differential ORP Sensor
  • Hach® 2422R0 Ryton® PPS Body Differential ORP Sensor
  • Water Analytics® R65C-8 CPVC Body Differential ORP Sensor

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