Model ST873 DynaProbe pH and ORP Sensors for the Process Industries

Model ST873 DynaProbe pH and ORP Sensors for the Process Industries

Specifications
Ordering Information

Description
The ST873 is a rugged, sealed sensor assembly designed for in-line or submersion 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 1" MNPT insertion thread, is molded from chemically resistant Ryton (PPS) and the reference junction is either porous Teflon or wood. Built-in temperature compensators are available. Optional sensor guard threads onto the front of the sensor and protects the sensor tip from impact. Sensor also available in ORP (Redox) version.

SPECIFICATIONS
pH Range	0-14 pH
ORP Range	± 5000 mV
Temp Range	0 -140º C
Max Pressure/Temp	150 psig at 120º C
Reference	Ag-AgCl
Wetted Materials	Ryton, Teflon or Wood, & Glass
Standard cable length	7 Feet

Before you call to place your order, please print out this page and fill in this PART# BOX by selecting from options below. Boxes 1-9 must be filled in.
Part #	1	2	3	4	-	5	6	7	8	9
ST873-	-	-	-	-	-	-	-	-	-

OPTIONS

—

Check options 1-9 below to complete PART# BOX above.

1 — Liquid Junction

[W] 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 ) (100°C Max. Temp.)

[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 1OOO Ohms for Yokogawa, Conducta, Polymetron, LTH, & many European models

5 — Cable Type:

[A] Low Noise Coax - for more than 7 ft.

[E] Jacketed Coax w/ TC leads - 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:

[BC] BNC only (for use with ORP electrodes or with sensors w/o TC or solution ground)

[FB] BNC for pH and ferrules on all other leads (for use with Terminal Block or Terminal Strip)

[FF] All Ferrule connectors ( for use with Terminal block or Terminal Strip)