MEYLE Level Measurement

MEYLE pressure, level & flow sensors

Pressure switches for industrial use and pressure transducers with thin film technology for ambitious, long-term measurements. Float switches with one or more switching points up to 3 m length. Magnetic level indicators for top or side tank assembly.

• Float level switches, electro optic level switches
• Multi-point level switches
• Flow switches and indicators switch points as low as 0.2 l/min.
• Pressure switches 0.5 to 400 bar and hazardous area versions
• Hydraulics and high pressure applications from 40–700 bar

SC-SCD, SE-A, SM-85, CL1001-CL1002;
LS-3, LS-3 Specials, LS-77700, LS-1900T, LS-1950E, LS-74780, LS-159000, LS-800-5, LS-7, type 3, 5, 7, 10, LS-7 , Type 6, 8, 9, LS-1050 E, LS-2020, LS-52100 E + belows, LS-270, LS-240, LS-750
ELS-100, ELS-300
LS-300 (1 to 5 switch points), LS-400 (1 to 4 switch points), LS-800 (1 to 7 switch points), LS-800 PVC

Working principle

The principle is based on the bahaviour of a capacitor the capacitance of which depends on the area of the armatures in the vicinity, the distances between them and the dielectric constant of the material. In the case of a capacitive level control the armatures of the capacitor are represented by the walls of the tank on one side and by the electrode of a probe, isolated from the walls on the other. As the surfaces of the electrode and the walls of the tank remain constant the only variable is the material which acts as the dielectric. The dielectric constant relative to air or vacuum is 1, whilst by definition that of any other material is greater than 1, therefore by varying the quantity of material in the tank the capacitance of the capacitor is varied and this is measured by applying to the electrodes a high frequency alternating voltage and as the capacitance increases as a result in the increasing level in the tank the current flowing in the capacitor also increases. This value of frequency current is transformed by the control circuit into a current which is used to indicate the level.

Application

Capacitive level controls are widely used where it is necessary to control with a good safety margin of intervention the level of substances both liquid and solid which may not be conductive. They are particularly used in silos for cereals, foodstuffs, seeds, biscuit plants and the food industry in general. They are also used in the transport, dosing, stocking and handling of plastic materials, petrochemical products, in foundries and cement factories. The field of use is vast and is practically anywhere where it is necessary to control the level inside tanks which contain many types of different material.

Features

• level switch for allfluid types
• measuring principle oscillation fork
• robust design in a housing made of stainless steel
• definated position of the forks by indication on the outside
• compact design

Technical specifications 

• housing made of stainless steel 1.4305
• medium- tangent components (forks) made of stainless steel 1.4571
• process connection G1" screw-in thread
• electrical connection with plug ISO4400  or optional fixed cable connection
• protection class IP65K(with plug), IP68 with cable connection
• auxiliary supply 12...55 VDC, max. current 350 mA at 55 VDC
• auxiliary supply 20-255 VAC 50/60 Hz, max. current 350 mA,  
  min. current 10 mA at 255 VAC,  min. current 25 mA at 24 VAC
• switching function full/empty by polarity of auxiliary supply
• temperature range -40...+130 °C
• max. operating pressure 6 bar, other types on request
• with switching status LED, bicolored

Application areas 

• fill level detection in cases and pipelines
• protection aginst dry running
• protection against overfilling
• empty-/full announcement

Features

• level switch for allfluid types
• measuring principle oscillation fork
• robust design with a connection head made of stainless steel
• definated position of the forks by indication on the outside

Technical specifications 

• housing made of stainless steel 1.4305
• medium- tangent components (forks) made of stainless steel 1.4571
• process connection G1" screw-in thread
• electrical connection with plug ISO4400  or optional fixed cable connection or stainless steel connection head with boilting or M12-plug
• protection class IP65(with plug), IP68 with cable connection, IP69K with E-head
• auxiliary supply 12...55 VDC, max. current 350 mA at 55 VDC
• auxiliary supply 20-255 VAC 50/60 Hz, max. current 350 mA,
   min. current 10 mA at 255 VAC, min. current 25 mA at 24 VAC
• switching function full/empty by polarity of auxiliary supply
• temperature range -40...+130 °C
• max. operating pressure 6 bar, other types on request
• with switching status LED, bicolored

Application areas 

• fill level detection in cases and pipelines
• protection aginst dry running
• protection against overfilling
• empty-/full announcement

Features 

• level switch for allfluid types
• measuring principle oscillation fork
• robust design with connection head
• definated position of the forks by indication on the outside
• universal voltage design

Technical specifications 

• medium-tangent components (forks) made of stainless steel 1.4571 or PFA-coated
• different process connections
• electrical connection with connection head made of aluminium or plastics
• bolting 2 x M 20 x 1,5
• protection class IP67
• auxiliary supply 20...60 VDC or 20-255 VAC 50/60 Hz
• relay output 1  250VAC, 8A // relay output 2  250VAC 6A
• switching function full/empty by circuit breaker
• temperature range -40...+130 °C
• max. operating pressure 6 bar, other types on request
• with switching status LED, bicolored

Application areas

• fill level detection in cases and pipelines
• protection aginst dry running
• protection against overfilling
• empty-/full announcement

Features 

• continual level measurement for fluids in tanks and cases
• high measuring ranges from 200...3000 mm possible
• G1" connection thread or process connection
• with coaxial reference probe applicable for plastics tanks
• applicable for many media
• detachable display
• with display 32 point-lenearization possible

Technical specifications 

• sensor rod made of stainless steel 1.4301 mit PTFA isolation
• electrical connection mit connection head made of aluminium or plastics
• screwing 2 x M20 x 1,5
• protection type of the head IP 67
• auxiliary supply 10,5...36 VDC
• analog output 4-20 mA 2-wire
• accuracy: 0,3% of the adjusted measuring range
• temperature range connection head plastics -25 °C...+70 °C,
  connection head aluminium -30°C...+70°C, with display   -25°C...+70°C
• temperature range process standard design: -30 °C...130 °C,
   high temperature design: -30 °C...200 °C
• conductive medium like water: dielectric coefficient not critical
• non-conductive medium like oil: dielecric coefficient has to be >1.5
• max. operating pressure 40bar, other types on request
• easy parameterization about 4 keys (basic model without display)
• with optional display further features like 32 points linearization, Bargraph a.s.o.

Application areas 

• level measurement in cases and tanks
• level measurement reservoirs

Features 

• level evaluation module for assembly in connection heads
• conductive measuring methods
• measuring areas adjustable jumper
• module completely sealed
• direct connection to PLC
• full/empty announcement changeable by Jumper

Technical specifications 

• housing made of PA6.6
• temperature range -10...80 °C
• auxiliary supply 15...35 VDC, max. 70 mA
• electrode voltage 2 VAC, 500 Hz
• measuring ranges 0,1 K, 1 K, 10 K, 100 K
• output active commensurate to auxiliary voltage
• output max. 50 mA
• switching deceleration approx. 0,5 s
• dimensions 44 mm(D) x 22 mm incl. clamps

Setting-up advices 

adjustment of sensibility

1. cover probe with medium to be measured
2. put jumper „sensibility“ to position 0,1k
3. if LED „probe“ doesn`t light, please choose censecutiveley 1k, 10k, 100k till LED „probe“ lights

adjustment of full-/empty announcement

Attention!!! there has always to be put a jumper for one function Function „full“: electrode is covered = output active

Function „empty“: electrode is free = output active

Features 

• level evaluation module for assembly in connection heads
• conductive measuring methods
• measuring areas adjustable by digital control input
• module completely sealed
• direct connection to PLC
• full/empty announcement changeable by pole change

Technical specifications

• housing made of PA6.6
• temperature range -10...80 °C
• auxiliary supply 8...35 VDC, max. 50 mA
• electrode voltage 2 VAC, 500 Hz
• measuring areas 1 K, 5 K, 20 K
• output active commensurate to auxiliary supply
• output max. 30 mA
• switching deceleration approx. 0,5 s
• dimensions 44 mm (D)x 22 mm incl. clamps

setting-up advices

adjustment of sensibility

1. cover probe with medium to be measures
2. put control input „sensibility“ to position 1 k schalten
3. if LED „output“ doesn`t light, please choose censecutively 5k, 20k  till LED „output“ lights

adjustment of full-/empty announcement

the change over of function full-/empty announcement is carried out by pole change of supply voltage.

KL1+, KL2-  function „full“: electrode is covered = output active

KL1-, KL2+  function „empty“: electrode is free = output active

Features 

• level switch for fluid types
• aseptical measuring point by process connection thread M12 for modulare welded sleeve- and process connection system
• EHEDG-conform, food safe material
• starting an adjustment by PC not necessary
• definated position of screwing

Technical specifications 

• connection head made of stainless steel 1.4305
• food tangent sensor made of PEEK
• process connection M12 modulare system
• electrical connection with screwing or optional M12-plug
• protection class IP69K
• auxiliary supply 12...35 VDC
• output signal active, max. 50 mA, short-circuit proof
• switching function full/empty by polarity of auxiliary supply
• temperature range 0...14 0°C process temperature for 30min
• high temperature design with neck tube optional
• temperature range connection head -20 °C to +80 °C
• max. operating pressure 10 bar
• optional with switching status LED

Application areas 

• fill level detection in cases and pipelines from DN15
• dry running condition protection
• empty-/full announcement

Features

• level switch for fluid types
• aseptical measuring point by process connection thread G ½" for modulare welded sleeve- and process connection system
• EHEDG-conform, food safe material
• starting and adjustment by PC not necessary
• definated position of screwing

Technical specifications 

• connection head made of stainless steel 1.4305
• food tangent sensor made of PEEK
• process connection G ½" modulare system
• electrical connection with screwing or optional M12-plug
• protection class IP69K
• auxiliary supply 12...35 VDC
• output signal active, max. 50 mA, short-circuit proof
• switching function full/empty by polarity of auxiliary supply
• temperature range 0...140 °C process temperature for 30 min
• high temperature design with neck tube optional
• temperature range connection head -20 °C to +80 °C
• max. operating pressure 10 bar
• optional with switching status LED
• optional with neck tube for assembly in isolated cases or the like

Application areas 

• fill level detection in cases and pipelines
• dry running condition protection
• empty-/full announcement

Features

• level switch for fluid types
• the ideal alternative unit for the swing level switch
• aseptical measuring point by process connection thread M12 for modulare welded sleeve- and process connection system
• EHEDG-conform, food safe material
• starting an adjustment by PC not necessary
• definated position of screwing

Technical specifications 

• connection head made of stainless steel 1.4305
• food tangent level stick made with limination PFA P16501
• process connection G ½" modulare system
• electrical connection with screwing or optional M12-plug
• protection class IP69K
• auxiliary supply 12...35 VDC
• output signal active, max 50 mA, short-circuit proof
• switching function full/empty by polarity of auxiliary supply
• temperature range 0...140 °C process temperature for 30 min
• high temperature design with neck tube optional
• temperature rang connection head -20 °C to +80 °C
• max. operating pressure 10 bar
• optional with switching status LED

Application areas 

• fill level detection in cases and big pipelines
• dry running condition protection
• empty-/full announcement

Features 

• level switch for liquid media as a floor sensor, leakage monitoring
• no adjustment or commissioning with PC necessary

Technical specifications 

• connection head made of POM - polyoxymethylene
• cable gland: PA - polyamide or plug
• food contact sensor made of PEEK
• electrical connection with screw connection or optional M12 plug
• protection class IP68 DIN EN 60529, IP69K fully grouted
• auxiliary voltage 12 ... 35 VDC
• output signal active, max. 50 mA, short circuit proof
• switching function full/empty by polarity of the auxiliary voltage
• temperature range -20 °C...+70 °C
• optionally with switching state LED

Application areas 

• monitoring of pump shafts
• dry running protection
• monitoring of floor drains in the food industry

Features

• level rod probe as 1-rod probe for conductive level measurement
• aseptical measuring point by process connection thread M12 for modulare welded sleeve connection system
• EHEDG-conform, food safe material
• definated position of screwing
• rods can be cut

Technical specifications 

• connection head made of stainless steel 1.4305
• food tangent sensor made of stainless steel 1.4571
• optional food safe coating with PFA P16501 0,2 mm
• electrical connection with screwing or optional M12-plug
• protection class IP69K
• temperature range 0...150 °C
• max. operating pressure 10 bar
• optional available with level module NA1 or NA2

Application areas 

• fill level detection in small pipelines
• dry running condition protection
• empty-/full announcement
• simple, low-cost limit detection
• simple level rejection possible
• simple pumping rejection possible

Features 

• level rod probe as 1-rod probe for conductive level measurement
• process connection thread G ½" or G 1"
• different plastic heads and cable connection possibilities available
• rods can be cut

Technical specifications 

• connection head made of plastic (different materials available)
• tangent sensor made of stainless steel 1.4571
• optional food safe coating with PFA P16501 0,2 mm
• protection class IP69K
• temperature range 0...60 °C
• max. operating pressure 3 bar
• optional available with level module NA1 or NA2

Application areas 

• fill level detection in cases and pipelines
• dry running condition protection
• empty-/full announcement
• simple, low-cost limit detection
• simple level rejection possible
• simple pumping rejection possible

Features

• level rod probe as 1-rod probe for conductive level measurement
• aseptical measuring point by process connection thread G ½" for modulare welded sleeve- and process connection system
• EHEDG-conform, food safe material
• definated position of screwing
• rods can be cut

Technical specifications

• connection head made of stainless steel 1.4305
• food tangent sensor made of stainless steel 1.4571
• optional food safe coating with PFA P16501 0,2 mm
• electrical connection with screwing or optional M12-plug
• protection class IP69K
• temperature range 0...150 °C
• max. operating pressure 10 bar
• optional available with level module NA1 or NA2

Application areas

• fill level detection in cases and pipelines
• dry running condition protection
• empty-/full announcement
• simple, low-cost limit detection
• simple level rejection possible
• simple pumping rejection possible

Features

• level rod probe as 2-rod probe for conductive level measurement
• process connection thread G1"
• different plastic heads and cable connection possibilities available
• rods can be cut

Technical specifications

• connection head made of plastic (different materials available)
• tangent sensor made of stainless steel 1.4571
• optional food safe coating with PFA P16501 0,2 mm
• protection class IP68
• temperature range 0...60 °C
• max. operating pressure 3 bar
• optional available with level module NA1 or NA2

Application areas

• fill level detection in cases and pipelines
• dry running condition protection
• empty-/full announcement
• simple, low-cost limit detection
• simple level rejection possible
• simple pumping rejection possible

Features

• level rod probe as 2-rod probe for conductive level measurement
• aseptical measuring piont by process connection thread G ½" for modulare welded sleeve- and process connection system
• EHEDG-conform, food safe material
• definated position of screwing
• rods can be cut

Technical specifications

• connection head made of stainless steel 1.4305
• food tangent sensor made of stainless steel 1.4571
• optional food safe coating of PFA P16501 0,2 mm
• electrical connection with screwing or optional M12-plug
• protection class IP69K
• temperature range 0...150 °C
• max. operating pressure 10 bar
• optional with level module NA1 or NA2

Application areas

• fill level detection in cases and pipelines
• dry running condition protection
• empty-/full announcement
• simple, low-cost limit detection
• simple level rejection possible
• simple pumping rejection possible

Features

• level rod probe as 2-rod probe for conductive level measurement
• built into a plastic housing
• rods can be cut

Technical specifications

• connection head made of plastic, dimensions 58 x 64 x 35 mm
• level rods made of stainless steel 1.4571
• optional food safe coating with PFA P16501 0,2 mm
• protection class IP65
• temperature range -40...85 °C
• optional available with level module NA2

Application areas

• fill level detection in cases and pipelines
• dry running condition protection
• empty-/full announcement
• simple, low-cost limit detection
• simple level rejection possible

Features

• level rod prode as floor sensor
• leckage monitoring of conductive liquids
• suitable for aggressive liquids
• optional with level evaluate modul NA 2

Technical specifications

• connection head made of POM - Polyoxymethylen
• cable gland : PA – Polyamid or connector
• material elektrodes of stainless steel 1.4571
• sensitivity: <20 KΩ (at NA 2-Modul)
• process pressure: depressurized
• protection class IP68 DIN EN 60529, IP69k fully potted finish  (-V)
• process temperature -20 °C...+70 °C

Application areas 

• monitoring of pump shafts
• monitoring of server rooms
• monitoring of tunnel systems and cellar rooms
• monitoring in expedition vehicles

Features

• level rod probe as 3-rod probe for conductive level measurement
• aseptical measuring point by process connectiong thread G ½" for modulare welded sleeve- and process connection system
• EHEDG-conform, food safe material
• definated position of screwing
• rods can be cut

Technical specifications

• connection head made of stainless steel 1.4305
• food tangent sensor made of stainless steel 1.4571
• optional food safe coating with PFA P16501 0,2 mm
• electrical connection with screwing or optional M12-plug
• protection class IP69K
• temperature range 0...150 °C
• max. operating pressure 10 bar

Application areas

• fill level detection in cases and pipelines
• dry running condition protection
• empty-/full announcement
• simple, low-cost limit detection
• simple level rejection possible
• simple pumping rejection possible

Features

• level rod probe as 4-rod probe for conductive level measurement
• aseptic measuring point by process connecting thread G ½" for modular welded sleeve- and process conection system
• EHEDG-conform, food safe material
• definated position of screwing
• rods can be cut

Technical specifications

• connection head made of stainless steel 1.4305
• food tangent sensor made of stainless steel 1.4571
• optional food safe coating with PFA P16501 0,2 mm
• electrical connection with screwing or optional M12-plug
• protection class IP69K
• temperature ranges 0...150 °C
• max. operating pressure 10 bar

Application areas

• fill level detection in cases and pipelines
• dry running condition protection
• empty-/full announcement
• simple, low-cost limit detection possible
• simple level rejection possible
• simple pumping rejection possible

Features

• level device for top hat rail mounting in the control cabinet
• slim casing design 22,5 mm
• adjustable sensitivity range high-impedance (50 KW...2,0 MW)
• 1 floating changeover contact
• state LED on the front side
• integrated pump controller with 3-rod probe

Technical specifications

• switching delay: 0,5 sec
• sensitivity: 50 KW...2,0 MW adjustable (potentiometer)
• output: 1 pot. free changer (250 V, 3 A)
• electrode voltage: max. 2 VAC
• supply voltage: 
• 230V/50Hz, max. 3 VA, optional 24 VDC
• operating temperature: -10...+55 °C
• housing: 22,5 x 99 x 115 mm (B x H x T)
• degree of protection: IP20

Features

• level evaluation module for assembly in top hat rail in switchboards
• conductive measuring methods
• narrow housing design 22,5 mm
• adjustment of the sensitivity possible by poti
• time lag adjustable by poti
• pump control with 3-rod probe integrated
• channel 2 applicable separately as protection against dry running or full detector
• relay output 2 changer or active electronic outputs PNP
• 2 status-LED at front site

Technical specifications

• auxiliary supply: 230 VAC, 24 VAC or 24 VDC
• electrode supply: 5 VAC
• measuring areas: 1...100 kOhm 
• outputs: 2 changer or electronic outputs 24 VDC PNP
• time delay: 0,5...10 sec adjustable, channel 1 level controller 0,5 sec fixed, channel 2 full/empty detection
• width of housing: 22,5 mm

Features

• conductive limit probe as 1-rod probe for level measurement
• integrated temperature sensor PT100
• aseptical measuring point by process connect thread G ½" for modular welded sleeve- and process connect system
• EHEDG-conform, food safe material
• definated position of screwing

Technical specifications 

• connection head made of stainless steel 1.4305
• food tangent sensor made of stainless steel 1.4571
• electrical connection with screwing or optional M12-plug
• protection class IP69K
• temperature range -50...+200 °C
  (extended range by request)
• max. operating pressure 10 bar

limit level

• auxiliary supply 8...35 VDC, max. 50 mA
• electrode supply 2 VAC, 500 Hz
• measuring range 1 K, 5 K, 20 K
• output active proportional to the auxiliary supply
• output max. 30 mA
• switching delay approx. 0,5 s

temperature measuring transducer  KMU / PMU

• power supply 10...35 VDC, residual ripple +-5%
• input PT100 2-, 3-, 4- wire
• output 4-20 mA, overflow 21 mA, underflow 3,5 mA
• measuring range max. -200 °C...+650 °C
• measuring span min. 10 K
• precision <+-0,1 % from the end value

Application areas

• fill level detection in cases and pipelines
• dry running condition protection
• empty-/full announcement
• simple, low-cost combined measuring point for temperatur and limit level

Features

• continuous contactless level indication for allfluid types
• measuring principle ultrasonic
• robust design with connection head
• basic 2-wire technology
• optional with display on site, linearizing of a tank a.s.o. available

Technical specifications

• sensor made of PP, PVDF or PTFE
• depending on measuring range 11/2" or 2" screw-in thread
• electrical connection with connection head made of aluminium or plastics
• bolting 2 x M 20 x 1,5
• protection class head IP67, sensor IP68
• auxiliary supply 12...36 VDC
• analog output 4-20 mA
• optional analog output 4...20 mA 2-wire Exi
  (ATEX  II 1 G EEx ia IIB T6)
• accuracy: 0,2 % of the setted measuring range
• temperature range: connection head made of plastics -25 °C...+70 °C,  connection head made of alu -30 °C...+70 °C, with display -25°C...+70°C
• temperature range process: -30 °C...90 °C
• max. operating pressure 3 bar abs., other types on request
• sealing at the process: at sensor PP: EPDM,  at sensor PVDF, PTFE: EPM (viton)
• easy parameterizing with 4 keys
  (base model without display)
• with optional display further features like 32 points lenearization, bargraph a.s.o.

Application areas

• fill level detection in cases and tanks
• fill level detection in waters and open reservoirs
• independent from the medium and the density