USA
Europe
Specification
pH Range: 0-14 pH
Redox Range: ± 5000 mV
Temp Range: 0 -120º C
Max Pressure/Temp: 50 psig at 120º C
Reference: Ag-AgCl
Wetted Materials: Ryton, Teflon, Glass and Viton O-rings
Standard cable length: 7 Feet
ST851 Twist Lock DynaProbe Industrial pH and ORP Sensors
The ST851 is a rugged, sealed industrial pH or ORP sensor assembly designed for in-line or submersion applications in most industrial measurements, including waste water. They have proven ability to outperform conventional sensors in the toughest process applications. The patented solid state reference cell features the unique IonTrap™ design for extended service life in the most severe applications. The body is moulded from chemically resistant Ryton (PPS) and the reference junction is either porous Teflon or wood. Built-in temperature compensators are available. Optional sensor guard locks onto the front of the sensor and protects the sensor tip from impact. Sensor also available in ORP (Redox) version.
| Please use this information to build your part number. If you need any assistance please call us on +1-949-829-5555 or 1-800-288-2833. | ||||||||||
| Part No. | 1 | 2 | 3 | 4 | – | 5 | 6 | 7 | 8 | 9 |
| ST851 | __ | __ | __ | __ | – | __ | __ | __ | __ | __ |
1 — Liquid Junction
- [W] Recessed Coaxial Wood
- [T] Coaxial Teflon
- [R] Recessed Coaxial Teflon
2-3 — Measurement Electrode
- [33] pH, HT-3 Rugged Dome Bulb
- [43] pH, HT-4 High pH bulb (for pH 13 and above)
- [17] pH, GP Flat Bulb (available only with style “T” Teflon Junction) (100ºC Max. Temp.)
- [PB] Redox, Platinum Band
4 — Temperature Compensator: (for direct input into following manufacturer’s preamp/instrument)
- [0] T.C. not required
- [1] 3K Ohms for most older Models of TBI/Bailey, Uniloc, and other US manufacturers
- [9] 301 Ohms for older Great Lakes Models: 60, 70, 90, 570, and 690
- [D] Pt 100 Ohms for Beckman Model SoluComp, TBI/Bailey (ABB) TB82 & TB84, Uniloc 1054, Foxboro 870 & 874, Yokogawa, and most European Models
- [H] Pt 1000 Ohms for Yokogawa, Conducta, Polymetron, LTH, & many European models
5 — Cable Type:
- [A] Low Noise Coax ( < 80º C service ) – for more than 7 ft.
- [E] Jacketed Coax w/ TC leads ( < 80º C service ) – for more than 7 ft.
- [T] Teflon Coax ( > 80º service ) for more than 7 ft.
- [U] Jacketed Teflon Coax w/TC leads ( > 80º service ) for more than 7 ft.
6-7 — Cable Length:
- [07] 7 ft. is standard length
- [XX] Specify length (in feet) above 7 ft. standard length
8-9 — Required Sensor Connectors:
- [FB] BNC for pH and ferrules on all other leads (for use with Terminal Block or Terminal Strip)
- [BC] BNC for pH and Redox only (no T.C.)
- [FF] All Ferrule connectors ( for use with Terminal block or Terminal Strip)
