500 PRO-D pH/ORP digital sensor

Featuring a triple-junction design with ion traps, reference shielding and Viton® Extreme O-ring protection, the 500 PRO-D provides enhanced poisoning resistance and chemical protection, extending operational lifetime without compromising performance.

The 500 PRO-D sensor provides:

EZLink™  connectivity

• Plug-and-play technology makes sensor integration fast and easy
• Advanced diagnostics offering end-of-life indication and fault analysis
• Improved measurement accuracy with digital communication

Increased efficiency

• Propriety high performance glassware formulations provide the highest level of reliability and responsiveness
• Close-coupled temperature measurement ensures high accuracy even with rapid temperature changes

Dependable performance

• Triple junction design with ion-trap and reference shielding provides enhanced poisoning resistance
• Unique tertiary cellular junction matrix slows poisoning effects, maximizing sensor lifetime
• ATEX/IECEx certified for use in hazardous areas
• Robust PVDF ¾ inch NPT body provides superior mechanical and chemical resistance
• Each electrode is manufactured to the highest quality standards and provided with a calibration certificate

Modular design

• Universal ¾ inch NPT design for simplified mounting
• Available in a range of detached or integral cabling options

Measurement range
pH 0 to 14 pH
Redox (ORP)  –2000 to 2000 mV
 
Process temperature 
–5 to 105 °C (23 to 221 °F)

Pressure range
0 to 10 bar (145 psi) @ 25 °C (77 °F)

Recommended minimum sample conductivity
50 μS/cm

pH glass
High performance (S) glass (bullet)
High performance (S) glass (flat)
Low temperature (LT) glass (bullet)
High temperature (HT) glass (bullet)
Hydrofluoric acid-resistant (HF) glass (bullet)

Redox (ORP)
Platinum

Reference system
Ag/AgCl with triple junction, KCl gel electrolyte plus ion trap

Reference junction
Porous PTFE and Viton^® Extreme O-rings

Connection type
EZLink

Process connections
¾ inch NPT

Approvals, certification and safety

• ATEX/IECEx
  Certificate numbers: IECEx BAS 18.0047X
                                            Bassefa18ATEX0071X
  
  Entity parameters: U_i = 15.0 V
                                         I_i = 20 mA
                                       C_i = 5 NF
                                        L_i = 30 uH
• CE Mark
  Covers EMC+LV directives (including latest version of EN61010)

• Regulation 31
  Drinking water approval: Complies to DWI Regulation 31(4)(b)
  Additional tests: BS6920 parts 2.2 and 2.4 on all wetted parts
• EMC
  Meets requirements of IEC61326 for an industrial environment
• CRN Approval
  Maximum allowable working pressure (MAWP): 5.58 bar (81 psi)
  Design temperature: -5 ⁰C to + 105 ⁰C (+23 ⁰F to +221 ⁰F)
  CRN number 0F22557
• MCERTS
  Certificate no. Sira MC220375/00

ABB offer a full range of services to support you and your processes, including:

• Product commissioning
• Maintenance and field services
• Repairs
• Spare parts services
• Training

Explore our comprehensive range of services at Measurement & Analytics service