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PRMAG
Heavy-Duty Magnetic Mount RTD Sensors for Ferrous Metal Surfaces
- Measure Surface Temperature of Ferrous Materials
- Spring-Mounted Probe
- DIN Platinum 100 Ohm Class A RTD
- 4-Wire Configuration Standard, 2- and 3- Wire Optional
Product Overview
- Accuracy Class A
- Accuracy Detail Class A per IEC60751
- Electrical Connection Stripped Leads
- Number of Wires 4
- Process Temperature, Min 0 °C
- Sensor Height 25 mm
- Sensor Width 25 mm
- Series ID PRMAG
- Temperature Sensor Type RTD
- Weight 6 kg
Supported Applications
The Omega PRMAG series consists of heavy-duty magnetic mount RTD sensors designed for measuring the surface temperature of ferrous materials. These probes feature a spring-mounted design to ensure consistent contact with metal surfaces, utilizing a powerful magnet rated at 6 kg (13 lb) pull force.
Operating Conditions & Performance
The PRMAG series is engineered for high-temperature surface monitoring up to a maximum process temperature of 400°C (752°F). The sensor element is specified as a Class A Din Platinum Element with 100 Ω resistance. Electrical performance relies on standard 4-wire construction to minimize lead wire errors.
Physical dimensions for the probe assembly are listed as 25 H x 40 W x 25 mm D. The series does not specify ambient temperature limits, pressure ratings, or enclosure protection levels beyond the inherent design of the magnetic mount and cable insulation options.
Cable Insulation Temperature Limits
The maximum operating capability is constrained by the selected lead wire insulation material:- PVC: 100°C maximum (also available with tinned copper braid)
- Silicone Rubber: 200°C maximum
- PFA: 250°C maximum (also available with SST overbraid rated to 200°C in the braided variant)
- Fiberglass: 400°C maximum (available plain or with SST braid)
Configuration Options
The PRMAG series offers extensive configurability through lead wire insulation, cable length, and termination options. The standard model number format follows the pattern PRMAG-2-100-A-<CABLE>-<LENGTH>, where specific codes denote material and dimensions.Cable Insulation Options
The series supports a wide range of lead wire insulations to match environmental conditions:- PVC (standard or with tinned copper braid)
- Silicone Rubber
- PFA (plain or with SST overbraid)
- Fiberglass (plain or with SST braided fiberglass)
Length and Termination Configurations
Cable lengths are configurable beyond the standard 1 m (40") offering. For lengths greater than 1 meter, the model number suffix is adjusted to reflect the required length in meters or feet, with additional cost per meter applied based on insulation type.Terminations include stripped leads as a baseline option. Connector terminations are available by adding specific codes for 'OTP', 'MTP', or 'TA3F' connectors. The series also supports TA4FL (female) and TA4ML (male) miniature connectors with latch lock mechanisms.
Key Product Differences
The primary distinction within the PRMAG family is the combination of sensor element resistance, cable insulation material, and physical length.- Sensor Element: The standard configuration utilizes a 100 Ω Class A Pt100 element. One variant in the series (PRMAG-2-1000-A-P-3M) indicates availability of a 1000 Ω element option.
- Cable Construction: Variants differ by insulation material and shielding, ranging from basic PVC to high-temperature fiberglass with stainless steel braiding for mechanical protection.
- Magnet Strength: All listed variants incorporate the same 6 kg (13 lb) pull magnet assembly designed for ferrous surfaces.
PDFs & Manuals
