Keller LEX1 (3bar) Digital Precision Manometer

SKU
KELL303030.0001
  • High-precision (0.1mbar), high-accuracy (±0.05%) measurement up to 3bar
  • Suitable for use in laboratories, calibration facilities and specialist industries
  • Forms part of a Keller-Bus pressure & temperature monitoring system
More Info
inc VAT £780.00 ex VAT £650.00
Typically ships in 5-7 working days
 

Product Details

Keller LEX1 Digital Precision Manometer (3bar)

The Keller LEX1 Digital Precision Manometer is a useful industrial pressure gauge with an oil-surrounded piezoresistive transducer that can measure absolute pressure from 0 to 2bar and relative pressure from -1 to 3bar with an accuracy of ±0.05% FS and a resolution of 0.1mbar. It takes measurements via a G ¼” male connector. It is suitable for applications including laboratory use, calibration and certain industrial uses.

The clear digital screen on the Keller LEX1 shows readings in a number of different units. It has a zero function for relative measurement and a min/max display which is easy to rest as required. Digital calibration with a zero point and end point can be used to help safeguard accuracy.

The Keller LEX1 can be connected to a recording system via the RS485 Fischer connection and an optional Keller K114A Cable Adaptor. As part of a Keller-Bus protocol – coordinated with a free CCS30 software package from the Keller website – the gauge can work with up to 127 other instruments to carry out extensive monitoring.

Two-button operation makes the Keller LEX1 very simple to use despite its complex functionality and it has an IP65 ingress protection rating. It has a 2000-hour battery life and can also be powered from an external power supply.

Keller part number: 303030.0001

Key Features

  • Piezoresistive transducer in oil-filled housing
  • Absolute pressure range: 0 to 2bar
  • Differential pressure range: -1 to 3bar
  • Accuracy: ±0.05% FS
  • Resolution: 0.1mbar
  • G ¼” male connector
  • Laboratory, calibration, industrial use
  • Multiple pressure units
  • Digital calibration function
  • Min/max and zero functions
  • Works as part of Keller-Bus monitoring system
  ECO2 LEO1 LEO2 LEO3 LEO5 LEO Record LEX1
-1 to 3bar  
-1 to 31bar
0 to 100bar            
0 to 300bar
0 to 400bar            
0 to 700bar    
0 to 1000bar      
Accuracy ±0.5% FS ±0.1% FS ±0.1% FS ±0.1% FS ±0.05% FS ±0.1% ±0.05% FS
Resolution
(at smallest range)
10mbar 1mbar 1mbar 1mbar 1mbar 1mbar 0.1mbar
Temperature range         0˚C to 50˚C    
Temperature accuracy         ±1˚C    
Intrinsically safe
version
   
Peak mode          
Pressure connector 7/16" UNF G 1/4" 7/16" UNF G 1/4" G 1/4" G 1/4" G 1/4"
Analogue output          
Internal memory        
Data port       RS485 Binder USB RS485 Fischer RS485 Fischer
Compatible with
Keller-Bus protocol
       
More Information
Specification

Performance 

  • Absolute pressure range: 0 to 2bar
  • Differential pressure range: -1 to 3bar
  • Overpressure: 6bar
  • Resolution: 0.1mbar
  • Accuracy @ RT (20˚C to 25˚C): ≤±0.05% FS. Nonlinearity (BFSL), pressure hysteresis, non-repeatability, zero point, amplification.
  • Total error band (0˚C to 50˚C): ≤±0.05% FS. Max. deviation within the specified pressure and temperature range.
  • Long-term stability: ±0.1% FS. > 1 bar, per year under reference conditions, yearly recalibration recommended.
  • Long-term stability: ±0.1mbar. ≤ 1 bar, per year under reference conditions, yearly recalibration recommended.
  • Degree of dependency on location: <±1.5mbar. Calibrated in vertical installation position with pressure connection facing downwards.
  • Accuracy of temperature measurement: ±1˚C typ.
  • Pressure range reserve: ±10%

Electrical Data

  • Battery: 3 V, type CR2430. LEX1 Ei only permitted for use in haz- ardous atmospheres when used with the Renata CR2430
  • Battery life: Approx. 2000 hours when used continuously
  • External power supply: 8...28 VDC
  • Overvoltage protection and reverse polarity of external power supply: ± 32 VDC
  • RS485 voltage insulation: -7...+12 VDC
  • GND case insulation: > 10 MΩ @ 50 VDC
  • External interface: RS485 half-duplex
  • Interface measuring rate: 30 measurements per second
  • Electrical connection: Fischer D 103 A054-130
  • CE conformity as per 2014/30/EU (EMC): EN 61000-6-1 to -6-4; EN 61326-1 / EN 61326-2-3 

Temperature Range

  • Compensated temperature range: 0...50 °C
  • Media temperature: 0...50 °C
  • Ambient temperature: 0...50 °C
  • Storage temperature: -20...70 °C

Display 

  • Dimensions/appearance: See Dimensions & options
  • Number of digits on LC display: 2 rows with 5 digits each
  • Display mode: Pressure + min/max or pressure + temperature
  • Measuring rate: 2 measurements per second
  • Configurable units of pressure: [bar], [mbar], [hPa], [kPa], [MPa], [PSI], [mH2O], [cmH2O], [inH2O], [ftH2O], [mmHg], [inHg], [kp/cm2]
  • Additional units of pressure: 5 user-defined units can be configured

Mechanical data

  • Pressure connection: Stainless steel AISI 316L
  • Pressure transducer separating diaphragm: Stainless steel AISI 316L
  • Pressure transducer seal (internal): FKM (Viton® type A)
  • Pressure connection seal (external): FKM (Viton® type A)
  • Display housing: Faradex AS-1003
  • Oil filling sensor: Silicone oil
  • Pressure connection: G1/4, see Dimensions & options
  • Diameter x height x depth (approx.): 76 x 118 x 55 mm
  • Weight (approx.): 300 g
  • Protection: IP65
Icon Label Type Size Download
pdf Keller LEX1 Datasheet pdf 1.7 MB Download
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