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MLC Series

Product catalog summary

Features

Surface and DIN Rail mounting options
Adjustable Sensitivity
Available in 24v, 115v, or 230vAC
Fail Safe at High or Low Level

MLC Level Controller

The MLC Plug-in Level Controller is designed for efficient and reliable control of electrically conducting liquids. It can be mounted on a DIN rail or housed in an IP65 plastic enclosure. The controller operates on electrolytic conductivity, using electrodes to detect liquid levels and control relay contacts accordingly. A red LED indicates the relay state. The controller can provide high/low level alarms and control between two levels, with fail-safe options to prevent uncontrolled filling or emptying.

Sensitivity is adjustable to accommodate various liquid conductivities, ensuring precise operation without intermittent issues. The controller is available for 24v, 110v, or 230vAC operation, with voltage specified upon ordering. LTH offers a range of electrode holders compatible with the MLC controllers.

Specifications

Liquid resistance: Up to 30,000 Ohms
Power supply: 24v, 115v, or 230vAC, 3W Max.
Relay contacts: Single pole changeover, rated 5A, 230vAC, 5A 30v DC
Sensor cable: Up to 30 Metres
Ambient temperature: 0 to +60 ºC
Temperature variation: ± 0.02% of range / ºC
DIN Rail mount housing: Black Polycarbonate
DIN Rail mount weight: Less than 300 grams
DIN Rail mount dimensions: 95 x 51 x 51mm
Wall mount housing: IP65 Polycarbonate
Wall mount weight: 1.2Kg (Dual controller version)
Wall mount dimensions: 175 x 150 x 125mm

E7 Series Liquid Level Electrode Holder

The E7 series electrode holders are designed for use with MLC controllers, accepting 6.25mm electrode rods cut to the required length. The maximum rod length is 3 meters, with intermediate support recommended in turbulent conditions. LTH provides stainless steel brackets for up to four electrodes.

Order Codes

Plug In Level Controllers

MLC 1508: 240v AC, variable sensitivity
MLC 1505: 115v AC, variable sensitivity
MLC 1520: 24v AC, variable sensitivity
MLC/B1 1509: 240v AC, fixed sensitivity
MLC/B1 1506: 115v AC, fixed sensitivity
KF11 114/003: Surface mounting socket

Surface Mounted Level Controllers in Enclosures

MLC 1517: 24v AC, IP65 enclosure
MLC 1518: 115v AC, IP65 enclosure
MLC 1519: 230v AC, IP65 enclosure
MLC 1521: Dual MLC, 230v AC, IP65 enclosure
MLC 1522: Dual MLC, 115v AC, IP65 enclosure

Liquid Level Electrodes

1650: 316 stainless steel rod
1651: Stainless steel rod with plastic sheath and graphite tip
128/011: Spare brass coupling

Polypropylene Holders & Brackets

E7 1609: Polypropylene holder
E7P 1610: Sealed holder for pressures up to 20 bar
B1 1612: Bracket for one holder
B2 1613: Bracket for two holders
B3 1614: Bracket for three holders
B4 1615: Bracket for four holders

Catalog excerpts

• Surface and DIN Rail mounting options • Adjustable Sensitivity • Fail Safe at High or Low Level

Open the catalog to page 1

MLC Level Controller The MLC Plug in Level controller has been designed to provide efficient & reliable level control of electrically conducting liquids. The MLC is available in DIN rail mounting format or can be supplied in an IP65 plastic enclosure which can either house one or two controllers to suit the system requirements. The controller operates on the principle of electrolytic conductivity by the conduction of a low level current through the liquid via electrodes set at the desired level. When the liquid makes or breaks contact with the electrodes the relay contacts in the MLC controller...

Open the catalog to page 2

E7 Series Liquid Level Electrode Holder The E7 series of moulded electrode holders are intended for use with the MLC level controllers to provide efficient and reliable level control of electrically conducting liquids. They can accept 6.25mm electrode rods which are cut to length to suit the level the liquid is to be controlled to. The maximum length of rod is 3 Metres and where electrodes are subject to turbelence they should have intermediate support. LTH Electronics can supply electrode holder brackets to suit up to four electrodes which may be fitted over a tank or sump. The brackets are...

Open the catalog to page 3

LTH Electronics Ltd, Chaul End Lane, Luton, Bedfordshire. LU4 8EZ England Telephone: +44 (0)1582 593693 Fax: +44 (0)1582 598036 email: [email protected] web: www.lth.co.uk Order Codes Plug In Level Controllers LTH Electronics Ltd reserves the right to make changes to thte data sheet or the product without notice, as part of our policy of oontinued developments and improvements. All care has been taken to ensure the accuracy of information contained h this data sheet. However we cannot accept responsibility for any errors or damages resulting from errors or inaccuracies of informaticn ccntahed herein....

Open the catalog to page 4

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