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
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
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
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
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