Emerson IP221 abcdef

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International:

Emerson Process Management

Mobrey Measurement

158 Edinburgh Avenue,

Slough, Berks, SL1 4UE, UK

T +44 1753 756600

F +44 1753 823589

www.mobrey.com

The Emerson logo is a trade mark and service mark of Emerson Electric Co.

Rosemount is a registered trademark of Rosemount Inc.

Mobrey is a registered trademark of Mobrey Ltd.

All other marks are the property of their respective owners.

We reserve the right to modify or improve the designs or specifications of product and services at any time without notice.

Americas:

Emerson Process Management

Rosemount Inc.

8200 Market Boulevard

Chanhassen, MN USA 55317

T (US) (800) 999-9307

T (International) (952) 906-8888

F (International) (952) 949-7001

Contents

Main www.mobrey.com Instructions Leaflet IP221, Rev. AA November 2004 Mobrey Level Electropulse systems ! Figure 1.1 - Gap sensor, cut away to show construction Figure 1.2 - Hi-Sens, cut- away to show construction Figure 1.3 - Attenuation Method Figure 1.4 (a) Clear liquid, signal transmitted (b) Solids attenuate the signal Figure 1.5 - Sludge density sensor, operation i) Normal acting head amplifiers ii) Inverse acting head amplifiers Figure 2.1 - Head amplifier internals Page Page Figure 2.2 - Adjacent head amplifier mounting details Page Figure 2.4 - Wiring summary for illustration only Figure 2.5 Table 2.1 - Relay Ratings Figure 2.6 - Control Unit Connections Certificates of Conformity Table 2.2 - Approvals Page Table 4.1 - Sensor specification 4.3 Control Units Fault relay: Alarm relay: Standard Control Unit: Rack Mounted Unit: 3 0 2 S D P 8 0 T M E P 3 A I / 3 C A N } Industrial Only M E P 3 L / 1 D M E P 3 B / 0 7 Page Page abcdef Instructions Leaflet IP221, Rev. AA November 2004 Level