OIL LEVEL GAUGES FOR INSTALLATION IN THE CONSERVATOR OF TRANSFORMERS

[MTO] SERIES-RM

OIL LEVEL GAUGESMAGNETIC

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[MTO] SERIES

Product description

The MTO-ST160RM level gauge is a measuring device with andwithout switching contacts. They are ideally suited to measuring theoil levels in the conservators of transformers.

The level gauge consists of a sensor and a display unit (Fig. 2), whichare linked separately. The sensor unit (Fig. 1) consists of a sealedflange plate and is installed directly in the wall of the conservator.The float arm transfers the rise and fall of the float to the spindle.This spindle is connected via a magnetic clutch to a pointer spindlein the display unit.The movement of the float is normally radial to the casing. The „G“version is recommended for installation in narrow or flat conserva-tors in which only limited movement is possible or in conservatorswith a rubber bag. In this case the float movement is axial to thecasing and the display can be scaled at a ratio of 1:1 or 1:2.

This level gauge can be supplied with either one or two micro-switches.

Materials: MTO-ST160RM

Housing Sheet steel, galvanized, acrylic coated, paint RAL 7038 similar to ANSI 70 light grey Flange Aluminum AlCuMgPb F38View glass Laminated safety glass

Brass, galvanized, passivatedElectrical connection: Flying leads; ANSI- or Westinghouse connectorDial Anodised aluminum; dial background black, characters and pointer yellow or white Float arm Aluminum Al 99.5 or brassFloat Rohacell 110, oil resistant, temperature resistant up to 160 °C

MTO-ST160RM

Fig. 2Fig. 1

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Oil level gauges with fixed and adjustable microswitches

The MTO-ST160RM oil level gauge has a removable front ring. It can be supplied without, or witheither one or two microswitches (Adjustable see Fig. 3/Fixed see Fig.4).

The electrical connection can be either an ANSI- or Westinghouse connector (see Fig. 5) or flying leads (see Fig.6).

Fig. 3 Fig. 4

Fig. 5 Fig. 6

Specifications: MTO-ST160RM

Dial lettering LO-25°-HI or CRITICAL LO-LO-25°-HI (other lettering on request)Ambient temperature -40 – +80 °CProtection mode IP55 to DIN VDE 0470-1 (similar to NEMA 3, IEC 529).

These instruments are ventilated and remain mist free up to 80 % RH.Location Indoors and out of doors, tropicalized

Microswitch MTO-ST160RM

Adjustable switches:Contact material Silver Cadmium Oxide AgCdO101 or 2 switches, fully adjustableContact rating:5 A @ 110/250 VAC; cos� =1 0.6 A @ 110 VDC (non inductive)0.4 A @ 250 VDC (non inductive)

Microswitch MTO-ST160RM

Fixed setting switches:Contact material Silver Cadmium Oxide AgCdO101 or 2 switches, fixedContact rating:15 A @ 110/250 VAC; cos� =1 5 A @ 12 VDC (non inductive)0.25 A @ 250 VDC (non inductive)

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PRODUCT RANGE

©Messko Albert Hauser GmbH & Co KG 2000Gablonzer Straße 25-27D-61440 OberurselPhone +49 (0) 61 71/63 98-0Fax +49 (0) 61 71/63 98-98E-mail info@messko.deInternet http://www.messko.de

Mechanical pointer thermometer for transformers with microswitches

Electronic pointer thermometer for transformers

Oil level gauges for transformers

Digital indicator

Resistance Thermometer

Mechanical pointer thermometers with a remote indication0-10 mA, 0-20 mA, 4-20 mA0-1 V/DC, 0-10 V/DC and 2-10 V/DC

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