7545070 TURCK | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 2
Technical content
Edition • 2023-07-21T16:29:28+02:00 Level controller 1-channel MK91-12-R/230VAC The 1-channel level controller MK91-12- R/230VAC monitors and regulates conductive liquid levels. As a dual level regulator, it can be used to control pumps or solenoid valves, as monitor- ing device it is designed for run-dry or over flow protection. The level controller not only provides opti- mum reliability in differentiating liquids, it is also suited for the distinction between foam and liquid. The responsivity (liquid resistance) is adjustable between 0.2 … 100 kò. First, select one of the four sensitivities with the "Range" switch. Then you can finetune the switchpoint via the potentiometer at the front. The separately adjustable switch-on and switch-off delay is very important for turbu- lent liquid levels. You can set a delay time be- tween 0 … 20 s via the potentiometers at the front. Two relay outputs each with one changeover contact are available to output the switching commands. You can toggle between closed current (R) and working current (A) with the "Range" switch. The switching status of the output is indicated by a yellow LED and operational readiness by a green LED. For further information, please order out in- stallation guidelines. ■ Responsivity: 0.2…100 kò ■ Hysteresis: 10% ■ Output: 2 relays with 1 changeover contact ■ Electronic switching of electrodes ■ Switch-on/off delay 0…20 s, separately ad- justable ■ Reliable distinction between foam and liq- uid ■ Galvanic isolation of input circuits, output circuits and power supply
Edition • 2023-07-21T16:29:28+02:00 Type MK91-12-R/230VAC ID 7545070 Nominal voltage 230 VAC Operating voltage 184…264 VAC Frequency 48…62 Hz Power consumption ð 3 VA Input circuits 2 electrodes or alternatively 3 electrodes Schaltpunkt 0,2-100 kò Probe voltage 0,02...5 Vpp/150 Hz (triangle) Schaltschwelle 0,2...1 kò Schaltschwelle 0,8...4 kò Schaltschwelle 2,5...15 kò Schaltschwelle 10...100 kò Einschaltverzögerung 0...20 s Ausschaltverzögerung 0...20 s Hysterese 10 % Output circuits Output circuits (digital) 2 x relays (change-over) Output switching voltage relay ð 30 VDC / ð 250 VAC Switching current per output ð 3 A Switching capacity per output ð 500 VA/60 W Switching frequency ð 5 Hz Galvanic isolation Test voltage 2.5 kV RMS Displays/Operating elements Operational readiness Green Switching state Yellow Mechanical data Protection class IP20 Ambient temperature -25…+60 °C Storage temperature -40…+80 °C Dimensions 89 x 36 x 110 mm Weight 262 g Mounting instructions DIN rail (NS35) or panel Housing material Polycarbonate/ABS Electrical connection 4 × 4-pin flat terminals with self-lifting pressure plates Terminal cross-section 1 × 2.5 mm²/2 × 1.5 mm² Dimensions