TE CONNECTIVITY Moisture Protection Selection Guide

【选型】TE Connectivity（泰科）KPSI传感器附件和选件产品选型指南

选型目录：

Installation Hardware

Replaceable and Interchangeable Nose Caps

Corrosion Protection

Moisture Protection

Additional Accessories

Digital Installation Hardware Digital Displays/ Digital Displays

KPSI ACCESSORY CATAL

TE CONNECTIVITY SENSORS

/// LIGHTNING PROTECTION FOR KPSI TRANSDUCERS

07/2016

Page

MOISTURE PROTECTION

Two solutions are offered to provide protection against moisture

incursion on transducers with vented gage reference pressure

format. The choice of which solution to utilize depends o

n the ability to provide periodic maintenance and the acc

uracy required

for level measurement.

VENT FILTER

Vent Filters provide the highest accuracy

capability and utilize indicating desiccant to

prevent moisture from entering the vent tube

and damaging transducers with vented gage

reference pressure format. The desiccant will

turn from blue to pink when exposed to moisture

indicating the need for maintenance. All KPSI

vented gage transducers are shipped with our

SuperDry Vent Filter. This vent filter design

prevents moisture from entering the vent tube

for at least one year without maintenance, at no

additional cost. The vent filters are 6.0 in (15.3

cm) long with a 0.75" diameter.

The KPSI 811 Stainless Steel Vent Filter is

housed in a 316 stainless steel body containing

desiccant to provide vent tube moisture

protection for a minimum of five years without

maintenance. A Gore-Tex filter plug provides

the vent filter with atmospheric pressure

reference. These vent filters are 2.75 inches

(7.0 cm) long with a 0.75 inch (1.9 cm) diameter.

ANEROID BELLOWS

The Aneroid Bellows is a maintenance-free

alternative to desiccant filters for moisture

protection on vented gage transducers. Made of

flexible neoprene material attached to a

polycarbonate mounting bracket, the bellows

fluctuates with changes in atmospheric

pressure maintaining a constant barometric

reference. Note that the use of the bellows

results in a closed reference pressure system

subject to zero shift errors induced by changing

temperatures of up to 0.003 psi/ºC. The bellows

is not recommended for use with accuracy

requirements of ±0.25% FS or better, nor for

ranges < 2 psi.

PN:

810

SuperDry Vent Filter

PN:

811

Stainless Steel Vent Filter

PN:

815

Aneroid Bellows

Model

811

Model 815