浮子液位测量仪 LFL2-**-U
来源：未知 日期：2017/02/16 浏览量：次
● Switch element: Micro switch, mercury-free
● Limit value detection for fluids
● Sleeve design: small diameter, mounting through G1 tap hole possible
● Ball design: high buoyancy
| Electrical specifications： | ||
|---|---|---|
| Contact loading | 250 V AC/3 A; 150 V DC/0.25 A resistive load; 60 V DC/1 A resistive load | |
| Rated insulation voltage | 300 V | |
| Pulse withstand voltage | 4 kV | |
| Directive conformity： | ||
| Low voltage | ||
| Directive 2014/35/EU | EN 60947-5-1:2004 + Cor.:2005 + A1:2009 | |
| Conformity： | ||
| Degree of protection | IEC 60529:2001 | |
| Application： | ||
| Description | microswitch with switching ball, change-over contact | |
| Function and system design： | ||
| Equipment architecture | This device may be used with any sequential circuit, as long as the circuit can support the electrical circuit values of the switching elements. | |
| Operating conditions： | ||
| Installation conditions | ||
| Installation instructions |
range of application and minimum length between mounting and float: - PVC version: ≥ 50 mm (2 inch), preferred for water - PUR version: ≥ 100 mm (4 inch), preferred for fuels, heating oils, oily fluids - CSM/CM version: ≥ 100 mm (4 inch), preferred for many acids and lyes mounting: - The float switch is mounted either from sidewards through a cable gland ≥ G1A into the vessel or - by means of a counter weight or rods (e. g. float switch combination) from the top. The pivot of the cable should always be horizontal. |
|
| Process conditions | ||
| Process pressure (static pressure) |
sleeve design: ≤ 3 bar at 20 °C (68 °F) ball design: ≤ 2 bar at 20 °C (68 °F) |
|
| Density |
sleeve design: ≥ 0.8 g/cm3 ball design: ≥ 0.6 g/cm3 |
|
| Ambient conditions： | ||
| Ambient temperature |
PVC version: 5 ... 70 °C (41 ... 158 °F) PUR version: 5 ... 70 °C (41 ... 158 °F) CSM/CM version: -20 ... 70 °C (-4 ... 158 °F) |
|
| Storage temperature | -25 ... 70 °C (-13 ... 158 °F) | |
| Altitude | ≤ 2000 m above MSL | |
| Mechanical specifications： | ||
| Degree of protection | IP68 | |
| Mechanical construction： | ||
| Material |
float: PP (Polypropylene) cable: - PVC version: PVC cable, highly flexible (3 x 0.75 mm2) - PUR version: PUR cable, highly flexible (3 x 0.50 mm2) - CSM/CM version: CSM/CM cable (chlorinated polyethylene, (3 x 0.75 mm2) |
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