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MACX MCR-EX-AP-RTD-RTD-SP 1291955 PHOENIX CONTACT Ex i, Resistance Isolating Transformer is used for the int..
MACX MCR-EX-AP-RTD-RTD-SP
1291955
PHOENIX_CONTACT
Ex i, Resistance Isolating Transformer is used for the intrinsically safe service of Pt 100 resistance thermometers in the technology of 2, 3 or 4 resistance conductors and transmitters. The measured values at the input Ex i are transmitted 1:1 to the output at non-Ex i. 3-Way Separation, Push-in Connection
Ex i-Resistance isolator for intrinsically safe operation of Pt 100 resistance thermometers in 2, 3, or 4-conductor technology and resistance-type sensors. The values measured at the Ex i input are transmitted 1:1 to the non Ex i output. Standard configuration, 3-way isolation, Push-in connection
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▲Technical data
Notes
| General | Accuracy, typically specified as a percentage of the basic measuring range at UN, 23°C |
| General | Installation conditions influence the ambient temperature. Please refer to the “Control cabinet installation instructions”. |
| General | Sensor set via DIP switches |
| General | 2-conductor comparison set via DIP switch ADJ |
Product properties
| Product type | Temperature transmitter |
| Product family | MACX Analog |
| No. of channels | 1 |
Electrical properties
| No. of channels | 1 |
| Electrical isolation | 3-way isolation |
| Signal transmission behavior | In = Out |
| Temperature coefficient, typical | ≤ 0.1 % (10 K) |
| Reverse polarity protection | yes |
| Electrical isolation Input/output IEC/EN 60079-11 | |
| Standards/regulations | IEC/EN 60079-11 |
| Rated insulation voltage | 375 VPP |
| Electrical isolation Input/power supply IEC/EN 60079-11 | |
| Standards/regulations | IEC/EN 60079-11 |
| Rated insulation voltage | 375 VPP |
| Electrical isolation Input/error message output IEC/EN 60079-11 | |
| Standards/regulations | IEC/EN 60079-11 |
| Rated insulation voltage | 375 VPP |
| Electrical isolation Input/configuration interface IEC/EN 60079-11 | |
| Standards/regulations | IEC/EN 60079-11 |
| Rated insulation voltage | 375 VPP |
| Electrical isolation Output 1/output 2 | |
| Test voltage | 350 V (50 Hz, 60 s) |
| Electrical isolation Output/supply | |
| Test voltage | 350 V (50 Hz, 60 s) |
| Electrical isolation Output/configuration interface | |
| Test voltage | 350 V (50 Hz, 60 s) |
| Electrical isolation Output/supply/error message output | |
| Test voltage | 350 V (50 Hz, 60 s) |
| Supply | |
| Nominal supply voltage | 24 V DC |
| Supply voltage range | 18 V ... 31.2 V |
| Power dissipation | ≤ 600 mW |
| Power consumption | ≤ 650 mW |
Input data
| Measurement | |
| Description of the input | Intrinsically safe |
| Sensor types (RTD) that can be used | Pt 100 |
| Connection technology | 2-, 3-, 4-conductor |
| Linear resistance measuring range | 18 Ω ... 391 Ω (Pt 100) |
| Max. permissible overall conductor resistance | ≤ 50 Ω (per wire, 2-conductor circuit) |
| ≤ 100 Ω (per wire, 3-, 4-conductor circuit) | |
Output data
| Analog: Resistance thermometer | |
| Output signal Voltage | 2 V DC (Nominal voltage) |
| Output signal Current | 5 mA (Nominal current) |
| Output signal Resistance | 400 Ω |
| Output signal Resistance range | 18 Ω ... 391 Ω (Pt 100) |
| Settling time | < 10 ms (10% ... 90%, multiplexer mode) |
| Setting range | < 1 s (Input/output) |
| Sensor input current | 200 µA ... 5 mA |
| Connection technology | 2-, 3-, 4-conductor |
| Signal: Error message output | |
| Maximum switching voltage | 30 V |
| Max. switching current | 100 mA |
Connection data
| Cross section AWG | (converted acc. to IEC) |
| Connection method | Push-in connection |
| Stripping length | 8 mm |
| Conductor cross section rigid | 0.2 mm² ... 1.5 mm² |
| Conductor cross section flexible | 0.2 mm² ... 1.5 mm² |
| Conductor cross section AWG | 24 ... 16 |
Ex data
| Ex installation (EPL) | Gc |
| Ex i circuits (EPL) | Ga |
| Da | |
| Ma | |
| Safety data | |
| Max. internal inductance Li | negligible |
| Max. internal capacitance Ci | negligible |
| Max. output voltage Uo | 6.5 V |
| Max. output current Io | 16.5 mA |
| Max. output power Po | 27 mW |
| Safety-related maximum voltage Um | 253 V AC |
| IIA (simple circuit): Max. external inductivity Lo/ Max. external capacitance Co | 900 mH / 1000 µF |
| IIB/IIIC (simple circuit): Max. external inductivity Lo/ Max. external capacitance Co | 450 mH / 570 µF |
| IIC (simple circuit): Max. external inductivity Lo/ Max. external capacitance Co | 120 mH / 25 µF |
| I (simple circuit): Max. external inductivity Lo/ Max. external capacitance Co | 1000 mH / 1000 µF |
| IIB/IIIC (mixed circuit): Max. external inductivity Lo/ Max. external capacitance Co | 100 mH / 5.3 µF, 20 mH / 6.9 µF, 2 mH / 11 µF, 0.5 mH / 15 µF |
| IIC (mixed circuit): Max. external inductivity Lo/ Max. external capacitance Co | 50 mH / 1.1 µF, 5 mH / 1.7 µF, 1 mH / 2.3 µF, 0.2 mH / 3.4 µF |
Signaling
| Status display | Green LED (supply voltage) |
| Red LED (line errors) |
Dimensions
| Dimensional drawing |  |
| Width | 17.5 mm |
| Height | 107.8 mm |
| Depth | 113.7 mm |
| Depth NS 35/7,5 | 114.5 mm (Snapped onto DIN rail NS 35/7,5 in accordance with EN 60715) |
Material specifications
| Flammability rating according to UL 94 | V0 |
| Housing material | Polyamide (PA 6.6) |
Environmental and real-life conditions
| Ambient conditions | |
| Degree of protection | IP20 (Terminal blocks) |
| IP30 (Housing) | |
| Ambient temperature (operation) | -20 °C ... 70 °C (Stand-alone device: any mounting position) |
| -20 °C ... 60 °C (Group assembly: vertical DIN rail without circulating air) | |
| -20 °C ... 65 °C (Group assembly: vertical DIN rail with circulating air) | |
| -20 °C ... 65 °C (Group assembly: horizontal DIN rail without circulating air) | |
| -20 °C ... 70 °C (Group assembly: horizontal DIN rail with circulating air) | |
| Ambient temperature (storage/transport) | -40 °C ... 80 °C |
| Altitude | ≤ 2000 m |
| Permissible humidity (operation) | ≤ 95 % (non-condensing) |
Approvals
| ATEX | |
| Identification | II (1) G [Ex ia Ga] IIC |
| II (1) D [Ex ia Da] IIIC | |
| II 3 (1) G Ex nA nC [ia Ga] IIC T4 Gc | |
| I (M1) [Ex ia Ma] I | |
| IECEx | |
| Identification | [Ex ia Ga] IIC |
| [Ex ia Da] IIIC | |
| Ex nA nC [ia Ga] IIC T4 Gc | |
| [Ex ia Ma] I | |
EMC data
| Electromagnetic compatibility | Tested in accordance with the following standards and regulations: EN 61326-1 For industrial use, NAMUR NE 21 |
Standards and regulations
| Electrical isolation | 3-way isolation |
Mounting
| Mounting type | NS 35/15, NS 35/7,5 |
| Mounting position | vertical, horizontal |
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