Intended Use - Burkert 8221 Manuel Utilisateur

Type 8221 Hygienic Conductivity Sensor Operating Instructions
Introduction
These operating instructions are intended for the following versions of conductivity sensors:
Part number
00557719
00558884
00559120
00559121
®
Tri-clamp is a registered trade mark of Alfa Laval Inc.
®
Varivent is a registered trade mark of GEA Tuchenhagen.
Bürkert conductivity sensors are quality products manufactured with the latest technology.
These instructions should be read, understood and followed by all staff using the device.
Bürkert can assume no responsibility for damage and operational disruptions arising from
failure to observe these instructions.

Intended use

Type 8221 hygienic conductivity sensors are used to determine electrolyte conductivity in
solutions.
With the Type 8221 hygienic line, Bürkert has developed a family of in-line conductivity
sensors which perform under demanding conditions in food & beverage, pharmaceutical,
biotechnology and the general chemical industry. During development, special attention was
paid to an optimum sanitary design. All materials in contact with the solution are FDA
approved.
The sensors are based on the 4-electrode principle which excludes polarization phenomena
normally observed with 2-electrode sensors. The engineered design guarantees an excellent
linearity over a conductivity range of more than 6 decades.
Safety
This sensor is to be used only as intended and is to be kept in a condition that ensures
complete safety. The specifications given in the section "Technical Data" as regards
temperature, pressure etc. may under no circumstances be exceeded.
Inappropriate use or misuse can be dangerous.
Assembly and maintenance may only be done by trained personnel.
During assembly, ensure that the positioning is correct and that the O-ring is undamaged.
O-rings are consumable items and must be replaced regularly – at least once a year.
The built-in temperature sensor should only be used for compensation of conductivity, not for
controlling the process temperature.
Description
Conductivity sensor, insertion type, short
Conductivity sensor, insertion type, long
Conductivity sensor, flush type, Triclamp
Conductivity sensor, flush type, Varivent
Page 1 of 8
Connection type
Tri-clamp® 1,5"
Tri-clamp® 1,5"
Tri-clamp® 2"
Varivent® DN50/40