MACX MCR-EX-RTD-I - Temperature measuring transducer

1050222

Ex i temperature transducer: converts signals from resistance temperature detectors installed in the Ex area and transmits a 0/4 - 20 mA signal to a load in the safe area. Freely programmable. 3-way isolation, SIL, screw connection, standard configuration.

Utilization restriction
EMC note EMC: class A product, see manufacturer's declaration in the download area

Product type Temperature transmitter
Product family MACX Analog
Application Temperature
No. of channels 1
Type Ex i signal conditioners with SIL functional safety
Configuration Software
Insulation characteristics: GB Standard
Overvoltage category II
Pollution degree 2

Alignment span ± 5 %
Alignment zero ± 5 %
Electrical isolation 3-way isolation
Electrical isolation between input and output yes
Step response (0–99%) 1 s
≤ 1.7 s
Temperature coefficient, typical 0.01 %/K
Transmission error, typical 0.1 % (e.g. for Pt 100, 300 K span, 4 ... 20 mA)
Electrical isolation Input/output/power supply
Rated insulation voltage 300 Vrms
Test voltage 2.5 kV AC (50 Hz, 60 s)
Insulation Safe isolation in accordance with IEC/EN 61010-1
Electrical isolation Input/output
Electrical isolation 375 V (Peak value in accordance with IEC/EN 60079-11)
Electrical isolation Input/power supply
Electrical isolation 375 V (Peak value in accordance with IEC/EN 60079-11)
Supply
Nominal supply voltage 24 V DC
Supply voltage range 19.2 V DC ... 30 V DC (24 V DC, -20 % ... +25 %)
Power dissipation ≤ 0.76 W
Power consumption ≤ 1 W

Signal
Number of inputs 1
Measurement
Description of the input Intrinsically safe
Sensor types (RTD) that can be used Pt, Ni, Cu sensors: 2, 3, 4-wire
Temperature measuring range -200 °C ... 850 °C (Range depending on the sensor type)
Linear resistance measuring range 0 Ω ... 50 kΩ
Potentiometer resistance range 0 Ω ... 50 kΩ
Max. permissible overall conductor resistance 50 Ω (Per cable)
Sensor input current 10 µA ... 210 µA (Up to 2x 210 µA with 3-conductor technology)
Temperature measuring range ≥ 50 K

Signal: Current
Number of outputs 1
Configurable/programmable Yes
Current output signal 0 mA ... 20 mA
4 mA ... 20 mA (SIL)
Max. current output signal ≥ 21 mA
Load/output load current output ≤ 600 Ω
Output ripple (current) < 15 µAPP
< 10 µArms
Behavior in the event of a sensor error As per NE 43 or can be freely defined

Connection method Screw connection
Stripping length 7 mm
Screw thread M3
Conductor cross section rigid 0.2 mm² ... 2.5 mm²
Conductor cross section flexible 0.2 mm² ... 2.5 mm²
Conductor cross section AWG 24 ... 14
Tightening torque 0.5 Nm ... 0.6 Nm
Test socket
Max. diameter 2 mm

Ex installation (EPL) Gc
Div. 2
Ex i circuits (EPL) Ga
Da
Ma
Div. 1
Safety data: Terminals: 4.1, 4.2, 5.1, 5.2
Max. internal capacitance Ci 44 nF
Max. output voltage Uo 6 V