ST864 Retraction DynaProbe pH and Redox Sensors

The ST864 is a rugged, sealed sensor designed for the SA864 high pressure ball valve insertion / retraction assembly. 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, is moulded from chemically resistant Kynar and the reference junction is porous Teflon. Built-in temperature compensators are available. Sensor also available in ORP (Redox) version.

Specification

pH Range: 0-14 pH

ORP Range: ± 5000 mV

Temp Range: 0 -140º C

Max Pressure/Temp: 300 psig at 140º C

Reference: Ag-AgCl

Wetted Materials: Kynar, Teflon, Glass, 316 Stainless Steel

Standard cable length: 7 Feet

Please use this information to build your part number. If you need any assistance please call us on +44 (0) 1525 862 518.
Part No.	1	2	3	4	–	5	6	7	8	9
ST-864	__	__	__	__	–	__	__	__	__	__

1 — Liquid Junction

[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] ORP, 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:

[02] 2 ft. is required length for use with extension cable or preamp
[07] 7 ft. is standard length
[XX] Specify length (in feet) above 7 ft. standard length

8-9 — Required Sensor Connectors:

[FF] All Ferrule connectors ( for use with Terminal block or Terminal Strip)
[BR] BNC (loose in box, field installed) with Stripped and Tinned on T.C. Leads (cable leads are prepared for field installation of BNC, provided in kit form with instructions)