SUEZ Water - Water Technologies & Water

Sievers 500 RLe TOC Analyzer

Protect your UPW and fabrication processes with Sievers 500 RLe TOC Analyzers

The Sievers 500 RLe TOC Analyzer is designed to monitor low-level TOC measurements in microelectronics applications. Offering an operating range of 0.03 ppb to 2.5 ppm, this analyzer offers the lowest limit of detection for a reagentless, online ultrapure water TOC analyzer. The 500 RLe utilizes the Sievers membrane conductivity technology to deliver on ultra-low-level accuracy and reliability. The analyzer is easy to operate, with minimal maintenance, and no special training is required. 

Features and Benefits

Ultra-low-level TOC measurement in microelectronics applications

  • On-line and grab sampling
  • Extended calibration stability – typically stable for 12 months
  • Accessories Kit
  • Minimal maintenance and operating costs – a few hours per year are recommended for preventative maintenance
  • Standard IOS designed to easily switch sampling methods between online and grab


500 RLe Specifications

Total Organic Carbon1

Range 0.03 to 2,500 ppb as C
Accuracy ± 0.1 ppb or ±5% of measurement, whichever is greater
Precision < 1% RSD or 0.03 ppb as C, whichever is greater
pH Range 5.5 to 8.0 in order to meet accuracy specification
Maximum Sample Conductivity 25 µS/cm at neutral pH
Analysis Modes On-line, on-line averaged, on-line timed
Analysis Time Continuous mode: 6 minutes
Average and timed modes: 0.5, 1, 4, 8, or 24 hours
External Flow Rate Minimum 50 mL/min
Sample Temperature 1–95 °C (34–203 °F)
Sample Pressure Up to 100 psig
Interferences Insensitive to organic heteroatoms
Calibration Stability Typically 12 months
Display Readout 3 significant digits


Power 100–240 ± 10% VAC, 50 W, 50/60 Hz
Normal Oprating Environment Intended for indoor use only
Ambient Temperature 10–40°C (50–104°F)
Maximum Relative Humidity Up to 95%, noncondensing
Maximum Altitute 2,300 m (7,546 ft)
Inputs One isolated binary input
Outputs Three isolated 20mA outputs, one Serial RS-232 output, one USB port, one parallel printer port, and four alarm outputs
Installation/Overvoltage Category II (protects against transients present in Category II power)
Safety Certifications ETL, CE
Pollution Degree 2 (normally only non-conductive pollution)
Display Backlit Quarter-VGA touchscreen display
Dimensions H: 41.9 cm (16.5 in); W: 48.3 cm (19 in); D: 27.4 cm (10.8 in)
Weight 16.9 kg (37.2 lb)
IP Rating Environmental Enclosure:  IP-45


UV Lamp 6 months
Pump Tubing (with pump heads) 12 months
DI Water Cartridge Typically 24 months (depends on water quality)
Inline Filter Replace as needed (depends on water quality)
DI Water Level Refill As needed (check when replacing other items)

The UV lamp inside this product contains mercury and must be recycled or disposed of in accordance with local, state, and federal laws.

1 Stated analytical performance is achievable under controlled laboratory conditions that minimize operator and standards errors.


500 RLe Accessories

  • Standard IOS: designed to easily switch sampling methods between online and grab