Model SA877 — DynaProbe Sensor Housing for Valve Retraction Applications

Model SA877 — DynaProbe Sensor Housing for Valve Retraction Applications

Specifications
Ordering Information

The Model SA877 is a sensor housing assembly designed for use with the replaceable Model ST877 and ST977 DynaProbe® sensors. This time-proven sensor housing is suited for the most severe process industry applications and is intended for valve retraction service. The Coupler is constructed from chemically resistant Kynar (PVDF). 316 SS is the standard material of construction for all other parts of this assembly. An optional Titanium version is available.

An assortment of insertion lengths are available from 2 inches to 27 inches. Viton O-ring seals are incorporated throughout this housing to prevent damage to the sensor and to retard process seepage during insertion and retraction procedures. The sheath is designed with blowout protection, should the compression fitting be loosened at the process operating pressure. The SA877 sensor housing is designed with replaceable components providing simple and economic servicing.

SPECIFICATIONS
pH Range	0-14 pH (w/DynaProbe)
ORP Range	± 5000 mV (w/DynaProbe)
Temp Range	0º to +120º C
Max Pressure/Temp	100 psig at 90º C
Wetted Materials	316 SS, Kynar (PVDF), and Viton O-Rings, with an optional Titanium Sheath version available

ST877 and ST977 DynaProbes must be ordered separately

Specify Model SA877 Part Number here:
	1	2	3	4	—	5	6	7
SA877—

Category Selection:

1 — 4 Sheath Material and Insertion Length:

[6L07] 316 SS, 7 inches – standard material and length
[6L11] 316 SS, 11 inches
[6L15] 316 SS, 15 inches
[6L21] 316 SS, 21 inches
[TL07] Titanium, 7 inches
[TL11] Titanium, 11 inches
[TL15] Titanium, 15 inches
[TL21] Titanium, 21 inches
[TL27] Titanium, 27 inches

5 — 7 Junction Box:

[J01] Optional junction box subassembly
[J99] Junction box not required – standard design

DynaProbe® pH and ORP Sensors
Must be Ordered Separately

Select the DynaProbe® sensor for pH or ORP (Redox) measurement which is compatible with the host pH/ORP instrument. A wide selection of DynaProbe® sensors both with and without automatic temperature compensation are available for most makes and models of pH/ORP instruments. For factory assistance, call our Tech Services at 1-800-288-2833.

Preamplifiers are also Available!
Ordered Separately

Select the optional preamplifier module to provide the correct interface signal between the DynaProbe® sensor in the Model SA877 housing and the host pH instrument. A wide selection of preamplifier modules both with and without junction boxes are available for most makes and models of pH instruments.