Heinrich Level Switches, Sensors and Transmitters

Heinrich Level Switches, Sensors and Transmitters 2021-09-01T14:08:41+01:00

Liquid Level Meter

Model: BA

  • Level- and interface metering
  • Limit switches
  • Can be used in the Category 2 potentially explosive area
Applications

The BA-type liquid level meter is suitable for
level measurement of liquid products in open or pressurized vessels.
The device is based on Archimedes’ buoyancy principle

Reliability

Robust, low wear, mechanical measurement

Special features
  • Large spectrum of special materials
  • High-temperature application (max. 250°)
  • Clear 90°-scale
  • Stainless steel display
  • Can be used in the Category 2 potentially explosive area
Technical data

Sensor
Materials: Stainless steel, Hastelloy (others on request)

Process connection: DN50 flange acc. EN 1092, ASME B16.5, DIN2512,
(others on request
Nominal pressure: PN 40, ASME Cl150 / 300

Process temperature: -40°C up to +250°C

Ambient temperature: -40°C up to +80°C

Ingress protection: IP 65 (EN60529)

Density range: 400?2.000 g/l l


Display: Aluminum (stove-enameled) Stainless steel (as option)

Outputs: inductive switch,inductive switch (safety design)
Microswitch (others on request)

Ambient temperature: -40°C up to +80°C (without switch)
-40°C up to +65°C (with switch)

Transmitter:
Power supply:14 – 30 VDC
Output: passive, galvanically isolated
Currency: 4-20 mA
Binary 1 and 2: Ui=30 V, Ii=20mA, Pi=100 mW
Ambient temperature: -40°C up to +70°C
Ingress protection: IP 20 (EN60529)

Accuracy:
± 5 mm of actual value
± 0,2% with transmitter (ES)

Explosion protection :
Display: DMT 00 ATEX E 075
Ignition category: II 2G Ex ia IIC T6 Gb

CE-Mark: Explosion Protection Directive 2014/34/EU

Electromagnetic compatibility: EMC-Directive 89/336/EEC


Communication

HART-protocol
HART-protocol and 2 NAMUR-switches
HART-protocol and 1 NAMUR-switch / pulse output
HART-protocol and counter module
Profibus-PA
Foundation Fieldbus

Liquid Level Meter

heinrichs liquid level meter - nbk-mbsk

Model: NBK-MBSK

  • Well readable wide-angle ball indication
  • Break-safe magnetic transmission system
  • Numerous special materials
  • Transmitter 4-20mA, HART® protocol
Applications

The MBSK-type liquid level meter is suitable for
level measurement of liquid products in open or pressurized vessels.

Reliability
Robust, low wear, mechanical measurement
Self-monitoring function for defective floats

Special features

Large scale with a well readable wide-angle ball indication
Large spectrum of special materials

Technical data
  • Display: liquid levels up to 6 meters, 2 parts up to 12m
  • Scaling:%, cm, dm (others on request)
  • Lower range value: Middle of lower connector
  • Upper range value Middle of upper connector
  • Measuring tolerance: : ±10mm
  • Repeatability: ±5 mm
  • Hysteresis: Depends on the viscosity of the liquid Ambient temperature:
  • Ambient temperature: Metal version: – 20°C to + 80°C
  • Plastic version: 0°C to + 50°C
  • Storage temperature: See ambient temperature
  • Climatic category: Class D in accordance IEC 654 Part 1: non-sheltered locations with direct climatic influence
  • Ingress protection: IP54 Standard, IP65 (option)
  • EMC: In accordance with NAMUR recommendation NE 21
  • Process connection: Flanges acc. EN 1092, ANSI B16.5, DIN2512
  • Nominal size: DN25/1/2″ (others on request
  • Nominal pressure: PN 40, ASME Cl150 / 300 (others on request)

EC-Type Examination Certificate Directive 2014/34/EU
TÜV 03 ATEX 2234 for Zone
Manufacturing in accordance with the Pressure Equipment
Directive97/23/EC.
TÜV, Germanischer Lloyd and Büro Veritas available
Various limit switches for level monitoring available


Communication

Reed contact
4-20mA, HART® protocol

Tuning Fork Level Switch

Model: NWS

  • No moving parts
  • Repeatability ± 1 mm
  • Max. viscosity 5000 mm2/s
  • Rotatable transmitter housing
Application

Level Transmitter for Liquids and solids
NGM uses TDR technology (Time Domain Reflectometry )which is also known as guided micowave or guided radar.

  • Measuring and monitoring of levels of nearly all liquids and light solids.
  • Independant of density, conductivity, temperature, pressure, humidity.
  • Very well suited for media with low dielectric constant such as oil and hydrocarbons.
  • Mounting in nearly all tanks, silos or storage tanks.
  • For difficult applications all units can be supplied with bypass chambers is stilling wells.

Special Features
Available Versions:

  • Probe types
  • Wire rope
  • Coaxial for media with low dielectric constant
Technical Data

Accuracy: ± 3 mm or 0,03 % of actual
Repeatability:  < 2 mm
Resolution: < 1 mm
Probe diameter / Length
Single rod:     6 mm / Length 100-3000 mm
Wire rope:      4 mm / Length 1000-200000 mm
Coaxial rod:   17,2 mm / 100-6000 mm
   
Wetted parts
Single rod
     1.4571(316TI), PEEK (Standard)
     PTFE-O-ring / lining
     High temp.version: KlingerSIL

Media temperature
Single rod: -40…+150 °C w/o PTFE;  -40…+100 °C c/w PTFE
Wire rope:  -40…+150 °C
Coaxial: -40…+130 °C (EPDM O-ring);  -40…+150 °C (FKM O-Ring)

High temperature version
Single rod:  – 200/150…+250 °C
Coaxial: – 200/150…+250 °C

Electrical Data
Supply voltage:  12..30 VDC 4-wire
Output signal:  4…20 mA, HART®

Protection: IP 68

Approvals:

ATEX

Communication:

4-20 mA, HART®

Capacitive Level Sensor for liquids

heinrichs capacitive level sensor for liquids - nmc

Model: NMC

  • Low measuring error < 1,5 % of sensor length
  • Four version for different applications
  • Measuring length up to 4000 mm
  • Versions in stainless steel and PTFE
Application:

Capacitive  Level Meter for liquids in vessels. The capacitive method works independant of the media density and is applicable for most liquids. In comparison with the guided Radar ( TDR-principle) it is cheaper and thus
suitable for more economic applications.
Level measuring and monitoring of nearly all liquids. Independant of density, temperature, pressure, humidity.
Applicable for media with dielectric constant of min. 1,5 e.g. water, waterlike liquids. Liquid food, chemical resp. aggressive liquids. Mounting in nearly all tanks, silos or storage tanks.

Special features:

Programmable plug-in modul

Available versions:

  • Single probe
  • High temperature probe
  • Single probe with external reference tube
  • Double probe with PVDF connection
Technical data:

Accuracy:  <1,5% of probe length
Measuring principle: capacitive for liquids up to 1000 pF

Measuring length:

  • 265…4000 mm


Wetted parts:

  • stainless steel 1.4305 ( 316),  PTFE ( NMC-N, NMC-H),   PVDF ( NMC-S)

 
Process temperature:

  • Standard:  +90 °C , High temperature up to  +125 °C

Prozess pressure:

  • max. 30 bar at +20 °C
  • max. 10 bar at + 90 °C

Prozess connections:

  • male thread  G1, G1 1/4 , G1 1/2 , G2

 

Elektrische Data:
  • Supply Voltage:  10…35 VDC,    ATEX version 12…30VDC
  • Output:  4…20 mA

Protection:      IP 65

ATEX

Communication:

4-20 mA

Guided Wave Radar Level Transmitter

heinrichs guided wave radar level transmitter - ngm

Model: NGM

Available with:

  • Single rod
  • Wire rope
  • Coaxial rod
Applications

Level Transmitter for Liquids and solids
NGM uses TDR technology (Time Domain Reflectometry )which is also known as guided micowave or guided radar.

  • Measuring and monitoring of levels of nearly all liquids and light solids.
  • Independant of density, conductivity, temperature, pressure, humidity.
  • Very well suited for media with low dielectric constant such as oil and hydrocarbons.
  • Mounting in nearly all tanks, silos or storage tanks.
  • For difficult applications all units can be supplied with bypass chambers is stilling wells.
Special features

Available Versions:

  • Probe types
  • Wire rope
  • Coaxial for media with low dielectric constant
Technical data

Probe diameter / Length
Single rod:     6 mm / Length 100-3000 mm
Wire rope:      4 mm / Lenght 1000-20000 mm
Coaxial rod:
     17,2 mm / 100-6000 mm
     17,2 mm / 100-1000 mm High temp.

Dielectric constant
     rod/rope >1,8
     Coaxial >1,4

Viscosity
     rod/rope <5000 cP
     Coaxial <500 cP

Wetted parts
Single rod
     1.4571(316TI), PEEK (Standard)
     PTFE-O-ring / lining
     High temp.version: KlingerSIL

Media temperature
Single rod
     -40…+150 °C ohne PTFE
     -40…+100 °C mit PTFE
Wire rope
     -40…+150 °C
Coaxial
     -40…+130 °C (EPDM O-ring)
     -40…+150 °C (FKM O-Ring)

High temperature version
Single rod

     -200…+250 °C (NBR O-ring)
     -150…+250 °C (FKM O-ring)
Wire rope not available
Coaxial

     -200…+250 °C (NBR O-ring)
     -150…+250 °C (FKM O-ring)
Ambient temperature
     -25…+80 °C
Storage temperature
     -40…+85 °C

Max. Pressure
     -1…+ 40 bar (NGM-19 0..4 bar)
Accuracy
     ± 3 mm or 0,03 % v. MW
     (higher value is valid)
Repeatability
     < 2 mm
Resolution
     < 1 mm
Velocity of Level Change
     < 1000 mm/s
Mdium conductivity
     No restrictions
Medium density
     No restrictions
Process connection
     thread, flange (see order code)
Material
Housing

  •      Aluminum, painted
  •      O-Ring
  •      NGM-rod / NGM rope without o-ring
  •      NGM Coax: FKM or EPDM
  •      NGM High temp.: NBR or FKM

Electrical Data

Supply voltage
     12..30 VDC 4-wire
Output signal
     4…20 mA, HART®
Load Resistance
     < 500 Ohm
     HART® resistor approx. 250 Ohm
Response Time
     0,5 s (Standard) 2s / 5s selectable
Temperature Drift
     < 0,2 mm/°K change in ambient temperature
Switching Output DC
     PNP aktive, N/O od NC contact
Load Current
     < 200 mA
Signal HIGH
     Supply Voltage – 2 V
Signal LOW
     0V..1V
Response Time
     <100 ms
Current consumption
     < 50 mA at 24 VDC (w/o burden)
Electrical connection
     Terminal block for cable 0,5..2mm2
Cable connection
     2 x M 20 x 1,5
Protection
     IP 68

certificates     ATEX
Ex II 1/2 G Ex ia/d IIC T6
Ex II 1/2 Ex iaD/tD A20/21 IP68 T86 °C
Ex II 1/2 Ex ia d IIC T6
Ex II 2D Ex iaD tDA21 IP68 T86°C

Ex II 1/2 G Ex ia/d IIC T6 Ga/Gb
Ex II 1/2 G Ex ia/t IIIC T86°C Da/Db
Ex II 2G Ex ia d IIC T6 Gb
Ex II 2D Ex ia t IIC T86°C Db


Communication

4-20 mA, Hart®

Dual Magnet - Level Switch

heinrichs dual magnet - level switch - ngs

Model: NGS

  • High switching capacity
  • Media temperature up to 250 °C
  • Pressure resistant up to 250 °C

Dual magnet float level switches are used were notably very high demands on robustness and safety for level switches are required. The very safe snap-switching enables the separation of the float inside media to the switching unit. By using a micro switch an extremely high switching capacity of 10 A is possible. Furthermore the design allows the usage in processes up to +250 °C.
NGS float level switches are used for regulation and monitoring of liquids in open or closed vessels through vertical mounting or mounting from top. They are suitable – in particular – for extremely rough operation on e.g. ships, drilling rigs, oil platforms – in extreme climatic conditions or under water

Certified by German Lloyd
Available versions:

  • Horizontal mounting
  • Mounting from top
  • Submerged version
  • Special float levers available
Technical data:

Switching difference:  ~ 20°

Media density:

  • 0,7 kg/dm3

Wetted parts :

  • stainless steel  l 1.4571 ( 316TI),

 
Process temperature:

  • -20…+250 °C

Process pressure:

  • max. 25 bar for horizontal mounting
  • max. 16 bar for vertical mounting

Process connections:

  • Square flange  ( option: weld-on counter flange )
  • DIN Flange,
  • Male thread


Electrical data:

  • Switching capacity  250 VAC  0,3/0,6/2,5/10 A,

Protection:      IP 65 / IP 68