6
Introduction
EN pHix Compact Manual 1507
Construction
pHix
®
Compact
is a 4-20 mA 2-wire trans-
mitter with power supply and measuring
signal transmitted over the same two wires.
pHix
®
Compact
also has HART
®
communi-
cation capabilities via the mA wires where
both the primary measuring signal (pH or re-
dox) and the secondary measurement signal
can be read. HART
®
communication gives
the possibility to configure nearly all para-
meters like measuring ranges, alarm limits,
electrode parameters and also commands
for buffer adjustment.
HART
®
communication requires that
pHix
®
Compact
is connected to a HART
®
commu-
nicator or a PLC with HART
®
interface.
pHix
®
Compact
is delivered as standard for
pH or redox masurement, but can also be
delivered for other types of measurement
and non-standard settings.
An identical marking is found on the pH
transmitter cable:
Product identification
Check that the item(s) delivered corre-
sponds to the ordered item(s). The item
number is printed on a label that is sticked
onto the packing. Shown below is the label
for a delivery including a
pHix
®
Compact
transmitter with pH electrode with zero point
at pH 4,6:
➀
➁
➂
➀
➃
➀
Item number.
➁
Item description.
➂
Serial no.
➃
Electrode specifi-
cation.