Emerson / Rosemount Analytical 54eC-01 Conductivity / Resistivity Analyzer / Controller

The Emerson Rosemount Analytical 54eC-01 is a microprocessor-based conductivity/resistivity analyzer and controller for continuous process monitoring. It measures conductivity, resistivity, and percent concentration in liquids with advanced temperature compensation algorithms applied across high-purity water, cation conductivity, and general industrial applications.

## Technical Specifications

**Measurement Parameters:**
• Conductivity, resistivity, percent (%) concentration
• Contacting sensors: 0–20,000 µS/cm
• Inductive sensors: 0–2 S/cm

**Accuracy & Repeatability:**
• Contacting sensors: ±0.5% of reading, ±0.5 µS/cm
• Inductive sensors: ±1% of reading (200 µS/cm to 2 S/cm), ±5 µS/cm
• Repeatability: ±0.25% of reading
• Stability: ±0.25% of output range per month, non-cumulative
• Ambient temperature coefficient: ±0.01% of reading/°C

**Temperature Compensation:**
• Range: -15 to 200°C (5 to 392°F)
• Automatic or manual modes
• Correction algorithms: high-purity water (dilute NaCl), cation conductivity (dilute HCl), linear temperature coefficient (0.0–5.00%/°C), or none
• High-purity and cation algorithms operate 0–100°C; linear coefficient applies -5 to 200°C (23 to 392°F)

**Percent Concentration Curves:**
• 0–12% NaOH, 0–15% HCl, 0–25% or 96–99.7% H₂SO₄
• Custom curve feature available

**Operating Conditions:**
• Recommended: 0 to 50°C (32 to 122°F)
• Operable: -20 to 60°C (-4 to 140°F), with potential display degradation

## Key Features

• NEMA 4X (IP65) rated, corrosion-resistant enclosure for harsh industrial environments
• Back-lit dot-matrix LCD display of process measurements and temperature
• Front panel membrane keyboard with tactile feedback
• Two independent, isolated 4-20 mA or 0-20 mA analog outputs assignable to primary measurement, temperature, or other parameters
• Output 1 includes superimposed HART signal
• Maximum output load: 500 ohms at 24 Vdc or 115/230 Vac

## Compatibility & Integration

• Supports contacting and inductive (toroidal) conductivity sensors
• Power: 115/230 Vac, 8 W (voltage configuration dependent)