MTL safety barriers MTL5082 Resistance Isolator

MTL safety barriers MTL5082 Resistance Isolator

MTL safety barriers MTL5082 Resistance Isolator

MTL safety barriers MTL5082 Resistance Isolator

Feature

The MTL5082 connects to a 2-, 3-, or 4-wire resistance temperature device (RTD) or other resistance located in a hazardous area, isolates it and repeats the resistance to a monitoring system in the safe area.
The module is intended typically (but not exclusively) for use with Pt100 3-wire RTDs. Switches located on top of the module allow selection of 2-, 3-, or 4-wire RTD connection. The MTL5082 should be considered as an alternative, non-configurable MTL5074, for use in RTD applications where a resistance input is preferred or needed instead of 4/20mA. The design is notable for its ease of use and repeatability. The number of wires which can be connected on the safe-area side of the unit is independent of the number of wires which can be connected on the hazardous-area side. The module drives upscale in the case of open-circuit detection. 

Specification

Number of channels
One
Location of RTD
Zone 0, IIC, T4 hazardous area
Div 1, Group A hazardous location
Resistance source
2-, 3-, or 4-wire* RTDs to BS 1904/DIN 43760 (100Ω at 0°C)
*user selectable by switches located on top of the module (factory
set for 3-wire)
Resistance range
10Ω to 400Ω
RTD excitation current
200μA nominal
Output configuration
2, 3 or 4 wires (independent of mode selected for hazardousarea terminals)
Output range
10Ω to 400Ω (from a 100µA to 5mA source)
Temperature drift
±10mΩ/C° typical (0.01%/°C @ 100Ω)
Response time
To within 4% of final value within 1s
Safety drive on open-circuit sensor
Upscale to 420Ω nominal
MTL safety barriers MTL5082 Resistance Isolator

MTL safety barriers MTL5082 Resistance Isolator