KELLER LEO-Record Digital Pressure Gauge & Data Logger

Introduction – KELLER LEO-Record Digital Pressure Gauge & Data Logger

The KELLER LEO-Record Digital Pressure Gauge & Data Logger is a high-accuracy, battery-powered instrument designed for precise measurement and long-term monitoring of both pressure and temperature. Using KELLER’s piezoresistive or capacitive sensor technology, the LEO-Record ensures stable, repeatable performance across a wide range of industrial applications. Its internal memory stores up to 57,000 timestamped readings, enabling reliable standalone data logging without external power or continuous supervision.

Engineered with an IP65-rated housing and robust stainless-steel wetted materials, the device is suitable for demanding environments including water supply networks, oil & gas operations, leakage monitoring, and general industrial pressure diagnostics. The LCD provides clear readability with selectable engineering units and user-defined options. Through PressureSuite Desktop software, logged data can be exported in CSV, JSON, Excel, Word, or graphical formats for complete reporting and analysis.

The LEO-Record is also available in an ATEX intrinsically safe version (LEO-Record-Ei), making it suitable for hazardous area installations. Dubai Sensor supports the supply of both standard and intrinsically safe models across industrial sectors in the UAE and wider MENA region.

Key Features & Benefits

• High accuracy: ≤ ±0.05% FS (piezoresistive) / ≤ ±0.1% FS (capacitive)
  
• Total error band: ≤ ±0.1% FS (piezoresistive) / ≤ ±0.2% FS (capacitive)
  
• Long-term stability: ≤ ±0.1% FS per year
  
• Large memory: up to 57,000 pressure/temperature records
  
• Configurable logging intervals from 1 second to 99 days
  
• Supports event-triggered and combined recording modes
  
• Wide pressure range options from –1…3 bar to 0…1000 bar (PR)
  
• Differential low-pressure ranges available (CP version)
  
• Temperature measurement included (±1°C typ.)
  
• Battery life up to 2 years using 3.6 V SL-760 lithium battery
  
• Optional ATEX intrinsically safe version (Ex II 2G Ex ia IIC T4 Gb)
  
• Durable stainless-steel pressure port with AISI 316L / 318LN materials
  
• IP65 environmental protection
  
• RS485 digital interface for configuration and data communication
  
• Supports user-defined pressure units (up to 5)
  
• PressureSuite Desktop software included (free licence)
  

Technical Specifications – KELLER LEO-Record Digital Pressure Gauge & Data Logger

Measurement

Data Logging

Electrical

Mechanical

Environmental

ATEX Intrinsically Safe Version (LEO-Record-Ei)

Standards & Certifications

• CE conformity: 2014/30/EU (EMC)
  
• Compliance with EN IEC 61326-1 / 61326-2-3 industrial EMC standards
  
• ATEX & IECEx certification for LEO-Record-Ei
  
• IP65 environmental protection
  
• High-grade stainless-steel materials per international standards
  

Applications & Industries

• Water supply and distribution pressure monitoring
  
• Long-term infrastructure and network logging
  
• Leakage detection and pipeline diagnostics
  
• Oilfield and well pressure monitoring
  
• Gas line pressure checking
  
• Industrial plant maintenance and troubleshooting
  
• Remote or standalone measurement tasks in UAE/MENA environments
  

Installation, Commissioning & Maintenance

• Install vertically with pressure port facing downward for rated accuracy
  
• Ensure compatibility of threaded connection type (G1/4 or 1/4-NPT)
  
• Configure logging interval, units, and recording logic via PressureSuite Desktop
  
• Zero calibration available through front-panel buttons
  
• Replace battery with 3.6 V SL-760 only (mandatory for ATEX Ei version)
  
• Protect the device with an optional rubber cover in harsh environments
  
• Regular recalibration recommended annually (≤ ±0.1% FS long-term stability)
  

Why Choose KELLER LEO-Record Digital Pressure Gauge & Data Logger

The LEO-Record combines high-precision measurement with powerful logging capabilities, offering a dependable solution for engineers who require both accuracy and long-term data acquisition. Its compact design, wide pressure range availability, and flexible logging modes make it suitable for diverse industrial applications where reliability is essential.

With intrinsic safety options, RS485 digital communication, and KELLER’s proven sensing technology, it delivers exceptional value for critical monitoring tasks. Dubai Sensor supports full supply, configuration guidance, and regional availability for users across the UAE and MENA industrial sectors.

Ordering Guide

1. Select the sensor type:
   
• PR (piezoresistive)
  
• CP (capacitive / differential)
  
• EI (ATEX intrinsically safe PR version)
  
2. Choose the pressure range:
   
• –1…3 bar up to 0…1000 bar (PR)
  
• 0…0.03 / 0…0.1 / 0…0.3 bar (CP)
  
3. Choose pressure connection type:
   
• G1/4 male
  
• 1/4-18 NPT male
  
4. Define accessories:
   
• Rubber protective cover
  
• Carry case
  
• K-114A RS485–USB converter
  
• Calibration certificate (5-point or 11-point)
  
5. Confirm intrinsically safe requirements if needed (LEO-Record-Ei).
   

Dubai Sensor is the official distributor and can supply all configurations, accessories, and verification documents as required.

FAQ – KELLER LEO-Record Digital Pressure Gauge & Data Logger

1) What pressure ranges are available for the LEO-Record?

The LEO-Record offers piezoresistive pressure ranges from –1…3 bar up to 0…1000 bar, and capacitive differential pressure ranges of 0…0.03, 0…0.1, and 0…0.3 bar.

2) How many measurements can the device store?

It can store 57,000 time-stamped measurements at intervals ≤15 seconds and 28,000 measurements at intervals >15 seconds.

3) What is the accuracy of the LEO-Record?

The piezoresistive version provides ≤ ±0.05% FS accuracy, and the capacitive version provides ≤ ±0.1% FS accuracy. Total error band is ≤ ±0.1% FS (PR) and ≤ ±0.2% FS (CP).

4) Does the LEO-Record measure temperature?

Yes. The device logs pressure and temperature, with a temperature accuracy of ±1°C typ.

5) What software can be used to view and export data?

The device works with PressureSuite Desktop software, allowing export to CSV, JSON, Excel, Word, and image formats.

6) How long does the battery last?

With the 3.6 V lithium battery (SL-760), battery life is approximately 2 years at a 10-second logging interval.

7) Is there an intrinsically safe (ATEX) model available?

Yes. The LEO-Record-Ei is certified Ex II 2G Ex ia IIC T4 Gb and operates between –20…60°C. It must use the SL-760 Tadiran battery and cannot use external power or RS485 in explosive areas.

8) What communication interface does it use?

The LEO-Record includes an RS485 half-duplex interface for configuration and data transfer.

9) What is the environmental protection rating?

The device is rated IP65, suitable for industrial and outdoor applications. Display readability is guaranteed from 0…50°C.

10) Which pressure connections are available?

It is available with G1/4 male or 1/4-18 NPT male connections, depending on the pressure range.