Keller LEX1 (30bar) Digital Precision Manometer

SKU
KELL303030.0002
  • Absolute pressure measurement up to 31bar with 1mbar resolution
  • Piezoresistive transducer in oil-filled metallic casing
  • Suitable for calibration and laboratory applications
More Info
inc VAT £660.00 ex VAT £550.00
Typically ships in 5-7 working days
 

Product Details

Keller LEX1 Digital Precision Manometer (30bar)

The Keller LEX1 Digital Precision Manometer has a relative pressure measurement range of -1bar to 30bar and an absolute pressure range of 0bar to 31bar with excellent accuracy of ±0.05% FS and high 1mbar resolution. Measurements are taken via the G ¼” male pressure connector and an oil-cased piezoresistive transducer. It has numerous applications in specialist industries, calibration and laboratories.

Readings are shown on the Keller LEX1’s clear digital screen in a large range of different units. The zero function enables relative measurement and the min/max function records extreme measurements. Onboard digital calibration with an end point and a zero point can be used to ensure accuracy.

The Keller LEX1’s RS485 Fischer data connector allows it to be linked up to a Keller-Bus protocol – a comprehensive monitoring system with up to 128 instruments. An optional Keller K114A cable adaptor is required to connect to a computer USB port in order to enable this feature, but free Keller CCS30 software can be used to coordinate the system.

With just two buttons, the Keller LEX1 is surprisingly easy to use despite its many functions. The ingress protection rating and 2000-hour battery life make it ideal for challenging conditions.

Keller part number: 303030.0002

Key Features

  • Oil-surrounded piezoresistive transducer
  • Absolute pressure range: 0 to 31bar
  • Relative pressure range: -1 to 3bar
  • Accuracy: ±0.05%
  • Resolution: 1mbar
  • G ¼” male connector
  • Suitable for labs, calibration and specialist applications
  • Multiple units of pressure
  • Min/max and zero functions
  • Digital self-calibration
  • RS485 Fischer connection
  • Compatible with Keller-Bus monitoring system
  ECO2 LEO1 LEO2 LEO3 LEO5 LEO Record LEX1
-1 to 3bar
-1 to 30bar
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 31bar
  • Differential pressure range: -1 to 31bar
  • Overpressure: 90bar
  • Resolution: 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
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pdf Keller LEX1 Datasheet pdf 1.7 MB Download
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