Norelem 28000-12 Oil level gauges with electronic oil level and temperature

Descrizione

Oil level gauges with electronic oil level and temperature... of German company Norelem is manufactured of first-rate quality materials and is renowned for its exceptionally functional features and outstanding quality, evidenced by certificates ISO 9001 2008, RoHS, REACh and I-Q Net.Norelem offers a wide range of products which are suited for various applications. Brand products are used in machine building, plant engineering applications and other areas.
Material:Housing fibreglass reinforced thermoplastic polyamide.Sight glass thermoplastic polyamide.O-ring and flat seal NBR.Reflector PVC.Float plastic.Screw and nut, steel.Version:Housing black.Sight glass crystal clear, high mechanical stability, non-ageing.Reflector white.Float red, with magnetic element.Screw and nut electro zinc-plated.Note:The oil level gauge not only enables the oil level to be viewed but also recorded using a REED switch. In addition, the oil level gauges can also emit an electric signal if the temperature of the liquid inside the container reaches the threshold of 70 °C.As soon as the float element approaches the selected minimum value after the circuit has been closed, the system emits an electric signal.The sensor is located on the housing and its height can be adjusted in line with the control requirements for the oil level. The minimum level is ca. 35 mm from the centre of the lower fastening screw.The reed switch is equipped with a normally open (NO) contact as standard.The temperature is monitored by a temperature switch (bi-metal). When the specified temperature is reached, the sensor closes (NO) or opens (NC) the circuit depending on the model.The sight glass consists of two transparent components which are ultrasonically welded together following assembly. This ensures a seal around the entire body.The maximum pressure is 1 bar. The maximum tightening torque of the fastening screws is 5 Nm.The sight glass has high mechanical strength and is resistant to mineral oil, petrol, lubricants, petroleum, solvents and most chemical substances. Avoid contact with alcoholic solutions and hot water.Temperature range:Maximum operating temperature: 75 °C.Assembly:The oil level gauge is secured using two M12 tapped holes or, two 12.2 mm (± 0.2 mm) holes and flange nuts. Centre distance for the fastening holes = L1 ±0.3.Function:The oil level is measured using a float element with a magnet that activates the electrical contact when the REED level switch is reached. If the oil level falls below a particular level, an electrical pulse can be emitted.Note:Strong magnetic fields can impair function.Drawing reference:1) Sight glass2) O-ring3) M12 flange nut4) Housing5) Flat seal6) Float with magnet7) M12 hollow screw8) Reed switch9) Temperature sensor

Order No.	Type	B	B1	D1	H	H1	H2	L	L1	L2	L3	L4	SW	Number offastening screws	CAD	Acc.	Order
28000-12-112712	normally open contact	42	45	M12	21	21	80	164	127	91	75	191	19	2
28000-12-212712	normally closed contact	42	45	M12	21	21	80	164	127	91	75	191	19	2

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