
Contact type KM – with magnet
Contact type KM with magnet for pressure gauges and thermometers
- TEMPRESS contact system with magnet for reliable contact function
- Vibration proof
- For dry and liquid filled instruments
- 1, 2 or 3 contact points
- Break, close or shift function
Application
The contact system type KM is especially well suited for processes with vibrations or transients as, due to the magnet, these will not cause undesired contact operations.
It can be used for all purposes where an electric impulse is required at a desired value. The impulse is applicable for alarm functions or simple actuating controls.
With a few exceptions, TEMPRESS’ pressure gauges and thermometers can be delivered with one, two or three built-in contacts type KM.
The contact is made without a blank-holder magnet to secure a reliable and optimal contact function which also depends on power, load and contact material.
The contact pins are standard in silver (KMS) but can also be supplied in gold (KMG) – e.g. for low voltages such as 24VDC.
Specifications | |
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Contact system | Type KM, snap action |
Instrument size: | DN 100 and DN 160 on request |
Contact type KNS
type KNG Number | Silver (Ag80/Ni20), no magnet
Gold (Au80/Ag20), no magnet 1, 2 or 3 |
Min. measuring range: | 1 contact: min. 1 bar 2-3 contacts: min. 2,5 bar |
Working range Min. work. range | 15-85% of span 10% of span |
Accuracy | ±2% at span ≤ 4 bar ±1,5% at span ≥ 4 bar |
Hysteresis | 2-5% of span |
Ambient temp. | -20+70°C |
Electrical connection | Plug, ISO 4400 (DIN43650-A) 2 plugs by separate circuits and by 3 contacts |
Load for low action Contacts with magnet | ||
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Voltage
Unit of measure [Volt] | Ohmic Load DC
Unit of measure [mA] Dry / Liquid filled | Inductive load Cos φ>0.7
Unit of measure [mA] Dry / Liquid filled |
220/230 | 100 / 65 | 65 / 40 |
110 | 200 / 130 | 130 / 85 |
48 | 300 / 190 | 200 / 130 |
24 | 400 / 250 | 250 / 150 |
24 | minimum 20 mA, and gold contacts are requiered. (KE contact is recommended) |