Rosemount 5081 Explosion Proof Single-Input Intelligent Two-Wire Conductivity Transmitter
Product Description
Rosemount™ 5081 Explosion-Proof Transmitter
The Rosemount 5081 Explosion-Proof Transmitter is a single channel loop powered device that can accept input from a variety of liquid analysis sensors including: pH/ORP sensors, conductivity sensors (contacting and toroidal) and amperometric sensors (dissolved oxygen, chlorine and ozone). The transmitter features a rugged, weatherproof, corrosion-resistant enclosure to withstand harsh environments.
Features
- Robust explosion-proof design constructed with heavy duty cast aluminum
- Faster installation using Quick Start programming
- Intrinsically safe, non-incendive, and explosion-proof hazardous area location approvals
- Visibility of process parameters by utilizing HART® or Profibus DP digital communications
- Effortlessly connect with PLCs and DCSs by choosing the HART® or FOUNDATION™ Fieldbus communication options
Rosemount Two-Wire TRANSMITTERS FOR pH, ORP, CONDUCTIVITY, Oxygen, OZONE, AND CHLORINE.
The 5081 family of transmitters can be used to measure pH, ORP, conductivity (using either contacting ortoroidal sensors), resistivity, oxygen (ppm and ppb
level), free chlorine, total chlorine, and ozone in a variety of process liquids. The 5081 is compatible with most Rosemount Analytical sensors. See the Specification sections for details.
The transmitter has a rugged, weatherproof, corrosion-resistant enclosure
The transmitter has a two-line seven-segment display.
The main measurement appears in 0.8-inch (20 mm)high numerals.
The secondary measurement, temperature (and pH if free chlorine is being measured),
appears in 0.3-inch (7 mm) high digits.
- The Transmitter has a rugged, weatherproof , corrosion-resistant enclosure.
- NEMA 4X and IP65 of epoxy-painted aluminum.
- This enclosure also meets NEMA 7B explosion-proof standards.
- 24V DC Operation Standard, 12 V minimum and 42.4 maximum.
- Continous Diagnostics monitor sensor performance and warns of failure (FAULT) or approaching failure (WARNING).
- CE Certification for Class I, Division I Areas and FM group A-G.
- Automatic Two-Point Buffer Calibration reduces errors.
- Choice of Communication Protocol: HART® or Foundation Fieldbus.
- Non-Volatile Memory retains program settings and calibration data during power failures.
- Solution Temperature Compensation converts measured pH into the pH at 25°C.
Product Parameters
| Measurement | Input | Measurement Range | Outputs | Calibration Points | Compatible Sensor(s) | Special Features |
| pH/ORP | Single or Dual Channel - pH/ORP | - 0 to 14 pH (standard) - Fully Scalable from 1 to 13 pH units | - Analog 0-20 mA or 4-20 mA output for pH/ORP/ISE or temperature for each input channel - Optional HART or ProfiBUS Digital Outputs | - 2 point auto buffer recognition for pH for slope determination - 1 point user defined pH standardize calibration to correct for offset (drift) | - Any Suitable ASTI pH/ORP Sensor with 100 or 1000 Ohm Platinum TC - Any Suitable ASTI pH/ORP Sensor with 100 or 1000 Ohm Platinum TC & 1056 compatible preamplifier | - Excellent option for severe service pH & ORP measurement in areas with flammable gas and corrosive environments. |
| Contacting Conductivity | Single or Dual Channel - Conductivity Cell | - Cell from 0.01 to 10.0, user selectable - Ranges from 0-200 microSiemens (0.01/cm) to 0-200 milliSiemens (10.0/cm) as mates with cell | - Analog 0-20 mA or 4-20 mA output for Conductivity or temperature for each input channel - Optional HART or ProfiBUS Digital Outputs | - Zero Calibration (Capitance) - Cell Constant calibration tofFind exact effective (apparent) cell constant in standard solution or process media | - Any Suitable Contacting Conductivity Sensor with 1000 Ohm Platinum TC | - Support for displaying in concentration units of acids, bases and electrolytes as well as salinity - Special ultrapure water temperature compensation and support for display in resistivity units |
| Toroidal Conductivity (Contactless Inductive) | Single or Dual Channel - Toroidal Conductivity Sensor | - Range from 0.050 to 2,000 milliSiemens (2 Siemens) | - Analog 0-20 mA or 4-20 mA output for Conductivity or temperature for each input channel - Optional HART or ProfiBUS Digital Outputs | - Zero Calibration (Capitance) - Cell Constant calibration to find exact effective (apparent) cell constant in standard solution or process media | - Any Suitable Toroidal Conductivity Sensor with 20/20 Windings and 1000 Ohm Platinum TC | - Support for displaying in concentration units of acids, bases and electrolytes as well as salinity - Excellent choice for strong acid, strong base and strong electrolyte solutions at elevated temperatures |
