ST857 Retraction DynaProbe pH and ORP Sensors

B5-13202-5T7

B5-11005-07-J

B2-LS103-015-M30

B4-21006-020-M10

B4-35005-020-M10

B4-41001-2T9-M10

B4-21005-015-M10

B4-35004-015-M10

B4-31024-8T9-B06

B4-31004-8T9-B06

B4-32023-5T7-B03

B4-21004-007-M10

B4-35002-005-M10

B4-31003-5T7-B06

B4-53008-020-M10

B4-22005-020-M10

B4-12004-020-M10

B2-LS202-020-M69

B5-11315-020

B5-11007-20-R

B4-82004-8T9-M27

B4-53007-015-M10

B4-22004-015-M10

B4-12003-015-M10

B4-44002-8T9-M27

B4-42002-8T9-M27

B4-72003-8T9-M27

B4-32005-8T9-B03

B4-32004-8T9-B03

B2-LS201-015-M69

B5-11314-015

B5-11006-15-R

B5-13103-8T9

B5-12103-8T9

B5-11355-07J

B4-21002-003-M10

B4-31002-2T3-B06

B4-35001-2T3-M06

B4-53006-007-M10

B4-22003-007-M10

B4-12002-007-M10

B4-32003-5T7-B03

B2-LS102-007-M30

B5-11313-007

B5-11004-07-R

B4-22002-005-M10

B5-11312-005

B5-11003-05-R

B5-13102-5T7

B5-12102-5T7

B5-11321-03J

B5-11002-03-J

B5-13201-003

B4-82002-2T7-G34

B4-82001-2T7-M18

B4-81003-2T9-M12

B4-81002-2T9-M10

B4-81001-2T3-M06

B5-51001-2T9-006

B4-53005-2T5-M10

B4-23001-2T9-M10

B4-22202-015

B4-22001-003-M10

B4-12001-2T5-M10

B4-44001-2T7-M18

B4-42001-2T7-M18

B4-72002-2T7-G34

B4-72001-2T7-M18

B4-32002-2T3-B03

B2-LS101-2T5-M30

B5-11311-2T3

B5-11001-03-R

B5-13101-003

B5-12101-003

The ST857 is a rugged, sealed, replacement sensor designed for insertion / retraction applications. The Patented solid state reference cell features the unique IonTrap™ design for extended service life in the most severe applications. The body, with an integral bulb guard and anti‑blowout restraint, is moulded from chemically resistant Kynar(PVDF) and the reference junction is porous Teflon. Built‑in temperature compensators are available. Sensor also available in Redox (ORP) version. Also fits TBI / Bailey Model TB557 “Hot Tap” sensor assemblies.

Specification

pH Range: 0-14 pH

Redox Range: ± 5000 mV

Temp Range: 0 -120º C

Max Pressure/Temp: 100 psig at 90º C

Reference: Ag-AgCl

Wetted Materials: Ryton, Teflon, Glass and Viton O-rings

Standard cable length: 7 Feet

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
ST857 __ __ __  __ __  __ __  __ __

1 — Liquid Junction

  • [W] Recessed Coaxial Wood
  • [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)
  • [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)

 Housing Model SA857 must be ordered separately

ST857-house