Emerson IP221 M E P 3 L / 1 D, M E P 3 B / 0 7

3. Control Units

Intrinsic Safety

3 Intrinsically Safe

Mounting

R Rack Mounted

L Wall Mounted

Mains Voltage

1 220/240

Volts

2 110/120

Volts

Output Relay

S Single Pole Changeover

D Double Pole Changeover

M E P 3 L / 1 D

4. Racks

Intrinsic Safety

3 Intrinsically Safe

Number of spaces for control units

01 to 14

Remaining spaces are blanked off

M E P 3 B / 0 7

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