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

Download datasheet here.

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
Contact systemType KM, snap action
Instrument size:DN 100 and DN 160 on request
Contact type KNS

type KNG

Number
Function

Silver (Ag80/Ni20), no magnet

Gold (Au80/Ag20), no magnet

1, 2 or 3
Break, close or shift

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
Hysteresis2-5% 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
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

220/230100 / 65
65 / 40
110
200 / 130
130 / 85
48300 / 190
200 / 130
24
400 / 250
250 / 150
24minimum 20 mA, and gold contacts are requiered.
(KE contact is recommended)

All the contact functions bellow are based upon rising pressure.

Single contact

(1 contact point)

Avaliable contact types:

KN,KM,KE and KI

  • 1
    Contact Function : Break
  • 2
    Contact Function : Close
  • 3
    Contact Function : Shift
  • 4
    Contact Function Separate Circuits : Break
  • 5
    Contact Function Separate Circuits : Close

Double contact

(2 contact points)

Avaliable contact types:

KN,KM,KE and KI

Shift contact

(2 contact points switch function)

Avaliable contact types:

KN and KM

Double contact

(2 contact pointers seperate Circuits)

Avaliable contact types:

KN and KM

Triple contact

(3 contact pointers)

Avaliable contact types:

KN and KM

Triple contact

(3 contact pointers)

Avaliable contact types:

KN and KM



TEMPRESS reserves the right to changes without notice
Last modified date: 23-08-2019
Contact type KN – without magnet Magnet contact Electronic contact Electronic contact Type KE 
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