Keller LEX1 (3bar) Digital Precision Manometer

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