pH/Redox (ORP) Analyzers Models 4630 & 4635 (incorporating Water Wash Versions 4631 & 4636) Comprehensive range of field-proven electrode systems and electrodes – satisfies broad range of applications Comprehensive diagnostics facility with in-built software protection – ensures security and confidence in operation Fully automatic buffer recognition – allows buffering in either order Solution temperature compensation as standard – essential for ammonia-dosed high purity boiler water applications Second current output or Modbus™ option – enables temperature to be retransmitted IP66/NEMA4X – reliable operation in demanding environments. Water Wash facility – enhances performance in difficult applications English, French, German, Italian and Spanish software – simple, user-selection of display language A high specification pH/Redox (ORP) analyzer offering advanced functionality, simple operation and reliability in harsh environments Data Sheet SS/4630_12

pH/Redox (ORP) Analyzers Models 4630 & 4635 (incorporating Water Wash Versions 4631 & 4636) SS/4630_12 2 4630 Series pH/Redox (ORP) Analyzer The ABB 4630 Series pH/Redox (ORP) Analyzer comprises a transmitter and a sensing system to accurately, and reliably, measure and transmit the pH/Redox (ORP) value in a range of water monitoring applications such as water treatment plants, boiler water and effluent. The Analyzer offers high performance and advanced functionality in a compact, cost-effective package. It is rugged and reliable for safe operation in harsh environments, simple to install and...

pH/Redox (ORP) Analyzers Models 4630 & 4635 (incorporating Water Wash Versions 4631 & 4636) SS/4630_12 3 Specification – Transmitter Display Measured value 5-digit x 7-segment back-lit LCD Information 16-character, single line, dot matrix, back-lit LCD Ranges pH 0 to14 Redox (ORP) –1000 to +1000mV Resolution 0.1pH, 1mV Accuracy ±0.01pH, ±1mV Glass pH slope range Max. 105% Min. configurable between 60 and 90% Temperature compensation –10 to 110°C (14 to 230°F) manual or automatic via Pt100 resistance thermometer Environmental Data Operating temperature limits –20 to 55°C (–4 to 130°F). Storage...

pH/Redox (ORP) Analyzers Models 4630 & 4635 (incorporating Water Wash Versions 4631 & 4636) SS/4630_12 4 Retransmission No. of retransmission signals One fully isolated – standard Two fully isolated – optional Output current 0 to 10mA, 0 to 20mA or 4 to 20mA programmable Output ranges Retransmission 1 User programmable pH 0 to 14pH, min. span 2pH Redox (ORP) –1000 to +1000mV, min. span 150mV Retransmission 2 (optional) User programmable pH 0 to 14pH, min. span 2pH Redox (ORP) –1000 to +1000mV, min. span 150mV Temperature –10 to 150°C (32 to 302°F), min. span 20°C (36°F) Accuracy ±0.25% FSD or...

pH/Redox (ORP) Analyzers Models 4630 & 4635 (incorporating Water Wash Versions 4631 & 4636) SS/4630_12 5 Body material Operating temperature range Max. temperature Max. operating pressure Process connection (standard) Process connection (optional) Body material Operating temperature Max. temperature Max. operating pressure Process connections (standard) Process connections (optional) Mounting Specification – Sensing System Body material Operating temperature Max. temperature Max. operating pressure Process connection (standard) Process connection (optional) Mounting Stem length Model 7651 Model...

pH/Redox (ORP) Analyzers Models 4630 & 4635 (incorporating Water Wash Versions 4631 & 4636) SS/4630_12 6 Body material Operating temperature Max. temperature Max operating pressure Process connections (standard) Process connections (optional) Mounting 316 stainless steel (wet section) 0 to 100°C (32 to 140°F) with high temp. electrodes 100°C at 6.6 bar (212°F at 100psi) 6.6 bar at 20°C (100psi at 68°F) 1/2 in. or 1 in. BSP 3/8 in. NPT Surface mounting brackets Body material Operating temperature Max. temperature Max. operating pressure Process connection (standard) Dip Systems Screw-in Systems...

pH/Redox (ORP) Analyzers Models 4630 & 4635 (incorporating Water Wash Versions 4631 & 4636) SS/4630_12 8 Channel 1 Channel 2 Power Supply Retransmission Output Relay 1 Relay 2 Serial RS485 1 2 3 4 – – – – pH Sensor Temperature Compensator 5 6 7 – – – 1 2 3 4 5 6 (Optional) – – – – – – Rx+ Rx– Tx+ Tx– 0V + Retrans. output 1 2 3 4 5 6 – – – – – – NC C NO NC C NO Relay 1 Relay 2 N L Neutral Line Earth Earth Stud Channel 1 Channel 2 Power Supply Retrans. Relay 1 Relay 2 Serial Earth Stud – – – White Red Red N/A Glass (inner core) Screen Reference (black) + 2nd Retrans. output * *Note. 2nd retransmission...

pH/Redox (ORP) Analyzers Models 4630 & 4635 (incorporating Water Wash Versions 4631 & 4636) SS/4630_12 9 Ordering Information 4630 Series Analyzer Model 4630, 4631, 4635 or 4636 pH/Redox (ORP) Analyzer 463 X – X 0 0 Range 0 to 14pH, power supply 110V/240V 50/60Hz, high and low alarms Case Wall-mount IP66 Wall-mount IP66 with water wash control Panel-mount IP66 Panel-mount IP66 with water wash control 0 1 5 6 Output Single isolated current output ModbusÆË serial data interface Two isolated current outputs 5 7 8

pH/Redox (ORP) Analyzers Models 4630 & 4635 (incorporating Water Wash Versions 4631 & 4636) SS/4630_12 10 7650/7660 Series pH/Redox Electrode System 76 XX / 0 X X System Type and Material Polypropylene Systems Flow system with 1/2 in. and 1 in. process connections Flow system with 2 in. process connections Dip system – 1m (39 in.) Dip system – 2m (78 in.) Dip system – 3m (118 in.) 51 52 54 55 56 Stainless Steel System Flow system with 3/8 in. process connections (Reservoir-fed reference version) 60 Connection Cable Length and Type With Automatic Temperature Compensation No cable 3m (10 ft)length...