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Model 551 pH/ORP Sensor
Brand: Barben AnalyticalThe 551 Quick Change Sensor offers a unique method to extract the sensor through a "Nut Lock" Adapter system.
The Nut Lock Adapter threads directly into 1" NPT process connections. Sensor length options up to 12" allows the sensor to fit through flanges and stand-off piping.
The 551 sensor also includes a 3/4" rear connection for use in submersible applications.
Features- Patented design increases sensor life, accuracy and reliability
- High resistance to poison - Reduced calibration offset error
- Large surface area reference junction eliminates plugging issues
- Eliminates error due to fluctuating pressure
- No exotic gel or polymer electrolyte which may be incompatible with the process
Specifications
Brand
Cable Length
- 1 to 30 feet (0.3 to 9 metres)
Electrical Connectors
- 8” Pigtail Connector
- Junction Box
- TOP68 Quick Disconnect Cable Plug Head
Enclosure, Body Material
- PEEK
- PVDF Kynar
Length
- Insertion Depth from Rib to Front of Body: 2.625 to 10”
Materials of Construction
- ORP: Platinum
- pH: Glass
Measuring Range
- -1,500 to 1,500 mV, 0° to 130° C (32° to 266° F)
- pH: 0 to 14, 15° to 130° C (59° to 266° F)
- pH: 1 to 14, 15° to 130° C (59° to 266° F)
- pH: 2 to 11, -20° to 50° C (-4° to 122° F)
- pH: 3 to 8, -20° to 80° C (-4° to 176° F)
NPT Connection
- 3/4” NPT Male
- Nut-Lock Adapter: 1” NPT Male
O-Ring Material
- EPDM
- FFKM
- Viton
Pressure Rating
- Plastic Body with Metal Hex Nut - psig: 25 (kPa: 172.4, bar: 1.724) at 130° C (266° F)
- Threaded Metal Body with Metal Hex Nut - psig: 300 (kPa: 2,068, bar: 20.68) at 80° C (176° F)
- Threaded Plastic or Metal Body with Hand Nut [at 70° C (158° F)], Plastic Body with Metal Hex Nut [at 25° C (73° F)] - psig: 150 (kPa: 1,034, bar: 10.34)
- Threaded Plastic or Metal Body with Hand Nut, Threaded Metal Body with Metal Hex Nut - psig: 40 (kPa: 275.8, bar: 2.76) at 130° C (266° F)
Sensor, Probe Material
- Sensor: Kynar
- Sensor: PEEK
Sensor, Probe Type
- RTD (Pt100, Pt1000 3-Wire), (Balco 3.01 kiloohms, Honeywell 8,550 ohms 2-Wire)