O2 Transmitter 4220X The smart 2-wire transmitter ... - Mettler-Toledo

Tem
O 2 Transmitter 4220X
The smart 2-wire transmitter
for industrial use
ORP
O 2
pH
Turb
• Dissolved oxygen
• Temperature
• Ambient air pressure
• 4...20 mA current
output
• Switching contact or
second current output
• Sensor diagnostics
• PI-controller
• Simple calibration
• Calibration record
• Logbook
• HART ® -communication
• Measurement recorder
• II 2 (1) G EEx ib [ia]
IIC T6
• First choice 2-wire process
transmitter for applications in
hazardous areas
• Safe and reliable measurement
due to continuous sensor and
transmitter diagnostics
• Easy to use with plain text
dialogue operation
• Ruggedized transmitter suitable
for outdoor installation

O 2 Transmitter 4220X,
advanced 2-wire process transmitter.
O 2 4220X
O 2 Measurement input
input for amperometric sensor,
e.g. METTLER TOLEDO oxygen
sensors
O 2
P air
mA /
HART ®
Output 1 (Current Loop)
galvanically isolated current loop (power
supply required), 4 to 20 mA, user defined
as current output for the corresponding
process variables, digital communication
via FSK modulation to HART ®
protocol
Pressure sensor
built-in pressure sensor for
measurement of the ambient
air pressure
Temperature input
input for NTC temperature
sensor
Temp
mA /
Output 2 (Passive)
galvanically isolated output user defined
as 0(4) to 20 mA current output for the
corresponding process variables or as
switching or controller output (current
sink, power supply required)
Exceptionally wide range of
functions
The METTLER TOLEDO O 2 Transmitter
features the following:
– Simultaneous measurement of O 2
partial pressure, temperature and
ambient air pressure.
– Via HART ® communication the
O 2 4220X can be configured and
remote controlled from the control
room. Measured values and messages
are retrievable at any time
allowing integration in fully automatic
production systems.
– In addition to the standard loop
current, the unit provides a passive
current output that can also be
defined as a switching output.
It allows to transmit a further measured
variable to the control
room, monitor limit values, or
create a process control system
using the integrated controller.
A series of safety functions
monitors the correct measurement
– A self-test checks the operation of
the instrument and provides data for
QM documentation in accordance
with DIN ISO 9000.
– Sensocheck ® continuously monitors
the state of the sensor.
– The adjustable calibration timer
tracks the calibration schedule.
The following functions provide
documentary support
– Two user-defined variables are
recorded and simultaneously
represented by two graphs on the
display. This allows to follow the
process sequence and gives important
information on process
control and monitoring.
– The logbook records the last 200
events, with date and time, e.g.
calibrations, warning and failure
messages, auxiliary power failure,
etc. QM documentation in compliance
with DIN ISO 9000 ff. is
therefore possible.
–The calibration records show all
relevant data of the last calibration
for documentation to GMP.
–The sensor statistics provide an
overview of the condition of the
sensor. Changes in sensor data
between calibrations can be
checked and the values even
compared with those of the first
calibration.
Four different calibration modes
are available
– Automatic calibration in airsaturated
water
– Automatic calibration in air
– Manual entry of saturation value
– Manual entry of sensor data
Additional functions
– Instrument design meeting EMC
demands
– EMC-protected to NAMUR requirements
– High-quality graphics display
– Self-explanatory graphical userinterface
to NAMUR specification
– Permanent data storage during
power failure
– Manual entry of pressure
– Automatic O 2 salinity correction
– Digital input filter for transient
suppression
– Self-contained clock
Warranty
–3 years warranty for transmitter
– 1 year warranty for accessories
Together with sensors and
housings from METTLER TOLEDO,
complete measurement systems
can be configured to provide a
high level of process safety.

Clear advantages.
Easy to use
Operation is menu-driven by operator prompting in plain
text dialog. Information text provides you with an accompanying
explanation during operation.
Measurement Recorder
currently measured value
1st channel
measured variable
data and time
functional check active
currently measured value
2nd channel
measured variable
more data
available
The integrated measurement recorder simultaneously
records two selectable process variables and represents
them graphically on the display. Measurement range,
recording method and scanning interval are user-defined
within wide limits. The last 500 values measured are
available with time and date, either graphically or as
numerical values.
Combined Current, Switching and Controller Output
measured values
alarms
limit values
controller
output 2
current output
switching output
Apart from the current loop, the O 2 4220X optionally
provides an additional passive output. This output can be
used as current, switching or controller output.
As current output (0 to 20 mA or 4 to 20 mA), it is userdefinable
for the different process variables. In addition,
alarm and warning messages can be outputed via a
22 mA signal.
As switching output, it releases warnings and alarms or
limit values.
You can also use the output as an analog controller or as
a switching controller output.

Ordering Information
Transmitter
O 2 Transmitter 4220X
Designation
O 2 4220X
Options
Second current output (passive) 487
Controller function (only with opt. 487) 483
Logbook 354
Key-lockable cover 432
Measurement recorder 448
HART ® communication 467
Mounting accessories
Mounting plate (not required for direct wall mounting) ZU 0136
Bracket kit (ZU 0136 mounting plate required) ZU 0125
Protective hood (ZU 0136 mounting plate required) ZU 0157
Protective case ZU 0158
Bracket kit for protective case ZU 0220
Further accessories
Power supply/isolator for 24 V AC/DC supply
WG 20 A2
Repeater power supply for 90 to 253 V AC (optionally 24 V AC/DC)
WG 21 A7
Repeater power supply for HART ® transmission WG 21 A7/470
Please order the O 2 Transmitter 4220X by specifying the instrument designation and the option numbers,
e.g. O 2 4220X/354/448/487
METTLER TOLEDO. The competent answer to your QA questions.
For over 40 years, products from METTLER TOLEDO have measured in processes in biotechnology,
chemistry, in food processing and breweries. Dependable monitoring of pH, redox, or O 2 values
through state-of-the-art technology and superior production quality – in the interests of users
and the environment.
ISO
9001
certified
ISO
14001
certified
Management System
certified according to
ISO 9001 / ISO 14001
INTERNET
http://www.mtpro.com
Sales and service:
Mettler-Toledo GmbH, Process Analytics, Industrie Nord, CH-8902 Urdorf, Tel +41-44-736 22 11, Fax +41-44-736 26 36
Subject to technical changes. 11/04 © Mettler-Toledo GmbH. Printed in Switzerland. 52 120 793