Emerson IP221 Standard Control Unit:, Rack Mounted Unit:

5. Recommended Spare Parts

5.1 Sensor and head amplifier

Sensors and head amplifiers are supplied as integral items, and therefore no spare parts are available.

In the case of sensor mounted head amplifiers, the sensor is attached to the head amplifier, and the

two are not usually available separately.

5.2 Control Units

i) Fuses

Standard Control Unit:

MEP*L/1* (220/240V) K179 T 63mA, 35A Breaking capacity (IEC 127)

MEP*L/2* (110/120V) K1796 T 125mA, 35A Breaking capacity (IEC 127)

Rack Mounted Unit:

MEP*R/** All voltages H1525 F 500mA, 1500A Breaking capacity (IEC127)

All fuses are 5mm×20mm

ii) Edge Connectors (Rack units only)

I.S. units: K1806 4 way edge connector

MEP3R K1805 12 way edge connector

Screws for mounting connectors 9722-827 M3 × 8mm cheese head (2 required per

connector)

Washer 9726-807 M3 (2 required per connector)

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