- Match official order code AP303/21021001 to the notched 3/4-inch body, standard yellow pH glass, Pt100 element and PTFE junction
- Use the integral 6 m cable with its BNC and temperature-compensator connectors; accessory code 00 means installation hardware is separate
- Select the notched bulb guard where glass protection is needed, but use a different ABB electrode design for heavily fouling service
AP303/21021001 is an ABB AP300-series combination pH sensor for industrial liquid analysis.
Its complete ordering code defines a 3/4-inch threaded insertion or immersion body with a notched guard, standard yellow-glass pH electrode, integral Pt100, porous PTFE liquid junction, 6 m cable and BNC plus temperature-compensator connectors.
Before installation, confirm process chemistry, pressure and temperature, transmitter compatibility, mounting method and all separately supplied flow-cell, coupling or immersion hardware.
Availability, condition, price, and shipping time for AP303/21021001 are confirmed during quotation.
ABB AP303/21021001 Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Choose the AP303 notched guard where mechanical protection of the glass bulb is required and persistent fouling is not the dominant condition
- Match the standard yellow-glass pH electrode to the documented process duty; low-temperature fast-response service requires a different ABB glass code
- Use the integral Pt100 only with a transmitter input and configuration that support this temperature-compensation element
- Use the 3/4-inch threaded AP303 body for the documented insertion, flow-through or immersion arrangement
- Provide the compatible flow cell, coupling, conduit entry and process seal because accessory code 00 includes no optional mounting hardware
- Isolate and depressurize the process before removal; AP303 is not a hot-tap retractable sensor assembly
- Route the integral 6 m cable without modifying the factory sensor termination
- Connect the BNC pH lead and the separate temperature-compensator connector to compatible transmitter inputs
- Where extra distance is required, use ABB-supported extension hardware and preserve the documented shielding, reference and connector arrangement
- pH monitoring in industrial and municipal water-treatment processes
- Process pH measurement in food-production liquid streams
- pH control and monitoring in compatible chemical-processing vessels and lines