568

Process Analysis Systems

Chem Energy Pharm Food Water

For universal use in the chemical industry, power station engineering, biotechnology, food processing and pharmaceuticals industries, and in water/wastewater treatment. The standardized PROFIBUS PA communication allows integration in fully automatic process cycles. The measured values, all device states and messages are transmitted online via PROFIBUS to the control or maintenance station.

The tried and tested PROFIBUS protocol according to EN 50 170 reliably guarantees data security. The digital transmission of the measured values guarantees maximum resolution and precision. With icon-guided operation and Sensoface® information on sensor status. All device parameters can be read and written. The data exchange takes place consistently in accordance with the PNO communication model “Profile for Analyzers”, version 3.0. The device operation may therefore take place via standardized operating devices or programs (e.g. Siemens PDM) from the maintenance station. The PROFIBUS interface Communication and the power supply take place simultaneously via the bus – similarly to conventional 2-wire devices. The bus interface is galvanically separated from the device. This prevents compensation currents and measurement interference due to unfavorable grounding conditions. The Stratos® PROFIBUS 2221 devices facilitate unlimited operation in hazardous areas (zone 1). Dimension Drawings See page 615.

Stratos® PROFIBUSThe Stratos® PROFIBUS X 2221 series for the process variables pH, conductivity, and oxygen

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Facts

– application also in hazardous locations

– sturdy, tightly sealed enclosure– wall, post/pipe, or panel mounting– easy installation with pre-assembled

enclosure and screw terminals– optical alarm signaling by red LED– Sensocheck® continuous sensor

monitoring– GainCheck® automatic device

self-test– international user interface

with icons– large, clear measured-value display

– temperature indication either in °C or °F

– additional mode indicators for: • measuring mode • calibration mode • alarm • online • bus communication • configuration

– calibration timer– communication according to the

“Profile for Analyzers”, Version 3.0.– power supply via PROFIBUS PA– logbook– limit values, can be defined and

read via PROFIBUS

Warranty

3 years!

Warranty Defects occurring within 3 years

from delivery date shall be remedied free of charge at our plant (carriage

and insurance paid by sender). Sensors and accessories: 1 year

570

Process Analysis Systems

Chem Energy Pharm Food Water

Communication Model (Profile for Analyzers)

Stratos® PROFIBUS

Stratos® PROFIBUS 2221 X pH communication model

Cyc

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Alarm

AI mV/pH

AI Temp.

DI Limit 1

DI Limit 2

Logbook

Physical BlockGlobal Status

Transducer control block meas/cal

Transducer block mV

Transducer block temp

Transducer transmission block

Transducer block limit value

Transducer block limit value

mV/pH °C

mV/pH °C

PROFIBUS PA The distribution of the device functions in standardized blocks enables problem-free interopera- bility with analyzers from other manufacturers. For the first time, this permits the use of standard operating tools.

Ext. temp.

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Process control Maintenance/configuration

Master class 1

Master class 2

- DP

- PA

Segment coupler or link

PROFIBUS PA Communication with the control station (master class 1) and the maintenance station (master class 2) is via PROFIBUS PA.

Typical Systems Configuration

614

Process Analysis Systems

Chem Energy Pharm Food Water

Stratos® PROFIBUS and Stratos® FIELDBUS

Mounting Examples

ZU 0274 pipe-mount kit For assembly on vertical or horizontal pipes or posts.

ZU 0276 protective hoodAdditional protection from direct weather exposure and mechanical damage.

ZU 0275 panel-mount kitFor assembly in standardized panel cutout 138 x 138 mm (DIN 43700).

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4

144105

4284

appr

ox. 1

4

M20 x 1.5 (3 x)

2 knockouts Ø 21.5 mm for cable glands M20 x 1.5 or conduit 1/2; (not included)

2143

27 32 80

726.

2

ZU 0274 pipe-mount kitconsisting of: 1 Self-tapping screw

(4 x)2 Pipe-mount plate

(1 x)3 Hose clamp with

worm gear drive to DIN 3017 (2 x)

Ø 40 … 60

For vertical or horizontal posts or pipes

1

2

3

132

ZU 0276 protective hood(if required)

ZU 0275 panel-mount kit

78 27Max. 25

1 … 22

Cutout 138 x 138 mm (DIN 43700)

Dimension Drawings