R. STAHL Resistance Isolator - Ex i Field Circuit ISpac 9180/11-77-11s
Art. No. 160499
Product Overview
The R. STAHL 9180A Ex i resistance isolators are designed for the intrinsically safe operation of Pt100 (9180/.0) or Pt1000 (9180/.1) resistance temperature detectors. The measured resistance at the input is transmitted to the output and can be read by an I/O card. The auxiliary power, output, and intrinsically safe input are galvanically separated. This is a two-channel device requiring only 8.8 mm of space per channel and supports 2-, 3-, and 4-wire connections.
Technical Data
Explosion Protection
| Application range (zones) | 2 |
| Ex interface zone | 0, 1, 2, 20, 21, 22 |
| IECEx gas certificate | IECEx BVS 10.0055 X |
| IECEx gas explosion protection | Ex ec nC [ia Ga] IIC T4 Gc |
| IECEx dust certificate | IECEx BVS 10.0055 X |
| IECEx dust explosion protection | [Ex ia Da] IIIC |
| ATEX gas certificate | BVS 05 ATEX E 176 X |
| ATEX gas explosion protection | II 3 (1) G Ex ec nC [ia Ga] IIC T4 Gc |
| ATEX dust certificate | BVS 05 ATEX E 176 X |
| ATEX dust explosion protection | II (1) D [Ex ia Da] IIIC |
| FMUS certificate | FM16US0122X |
| CFM certificate | FM16CA0067X |
| Marking cFMus | Class I, Div. 2, Groups A,B,C,D; Class I, Zone 2, AEx/Ex nA nC Group IIC AIS Class I,II,III, Div. 1, Groups A,B,C,D,E,F,G; Class I, Zone 0, [AEx ia]/[Ex ia] IIC T4 at Ta = 70°C |
Certificates
| Ship approval | CCS, EU RO MR (DNV) |
| Declaration of conformity | ATEX (EUK), China (CCC) |
Safety Data
| Max. voltage U | 6.5 V |
| Max. current I | 16.5 mA |
| Max. power P | 27 mW |
| Max. permissible external capacity C for IIC | 25 μF |
| Max. permissible external inductance L for IIC | 120 mH |
| Max. permissible external capacity C for IIB | 570 μF |
| Max. permissible external inductance L for IIB | 450 mH |
| Max. perm. ext. capacit. IIIC | 570 μF |
| Max. permis. ext. induct. IIIC | 450 mH |
| Internal capacitance | Negligible |
| Internal inductance | Negligible |
| Safety-related max. voltage | 253 V |
Intrinsically safe limiting values inductance L/capacitance C
| Jointly connectable inductance L/capacitance C | |||||
| 50 mH | 5 mH | 1 mH | 0.200 mH | ||
| IIC | C. [μF] | 1.100 μF | 1.700 μF | 2.300 μF | 3.400 μF |
| L. [mH] | 100 mH | 20 mH | 2 mH | 0.500 mH | |
| IIB | C. [μF] | 5.300 μF | 6.900 μF | 11 μF | 1.500 μF |
| L. [mH] | 100 mH | 20 mH | 2 mH | 0.500 mH | |
| IIIC | C. [μF] | 5.300 μF | 6.900 μF | 11 μF | 1.500 μF |
Electrical Data
| Number of channels | 1 |
| LFD relay | Yes |
| Measuring range | 180 to 3910 Ω |
Auxiliary Power
| Auxiliary power | 24 V DC |
| Nominal voltage | 24 V DC |
| Auxiliary power voltage range | 18 ... 31.2 V |
| Voltage range residual ripple | ≤ 3,6 VSS |
| Nominal current | 27 mA |
| Power consumption | 0.65 W |
| Max. power dissipation | 0.6 W |
| Polarity reversal protection | Yes |
| Undervoltage monitoring | Yes |
| Operation indication | Green "PWR" LED |
Galvanic Isolation
| Test voltage as per standard | EN IEC 60079-11 |
| Ex i input to output | 1.5 kV AC |
| Ex i input to auxiliary power | 1.5 KV AC |
| Ex i input to fault message contact | 1.5 KV AC |
| Test voltage as per standard | EN 50178 |
| Output to auxiliary power | 350 V AC |
| Output to output | 350 V AC |
| Fault message contact to auxiliary power | 350 V AC |
| Fault message contact to output | 350 V AC |
Input
| Sensor adjustment | DIP switch |
| Medium-resolution input | 0.2 Ω |
| Input for resistance temperature detector | Pt 100 / Pt 1000 |
| Connection type RTD input | 2-, 3- and 4-wire circuits |
| 2-conductor adjustment | Via ADJ DIP switch |
| Sensor current RTD | 200 μA ... 0.5 mA |
| Max. line resistance per wire RTD | 50 Ω (2-wire connection) / 100 Ω (3-, 4-wire connection) |
Output
| Output signal | Equals to input signal (resistance value) |
| Connection type RTD output | 2-, 3- and 4-wire circuits |
| Settling time output | < 10 ms |
| Response time output | < 1 s |
| Sensor current range | 200 μA ... 0.5 mA |
| LF switch user adjustment | Activated/deactivated |
| Wire breakage error detection input | > 3940 ohm |
| Short circuit error detection input | < 160 ohm |
| Behaviour of output during LF | > 10 kΩ |
| Line fault indication | Red "LF" LED |
| Fault message contact switching capacity | 30 V / 100 mA |
| Line fault and loss of power signalisation | Contact (30 V/100 mA), closed against earth in case of error - pac-Bus, potential-free contact (30 V/100 mA) |
Deviations / error note
| Average measurement fault | < 0.1% |
| Temperature influence | ≤ 0.1 %/10K |
Ambient Conditions
| Ambient temperature | -20 °C ... +70 °C (Single device) / -20 °C ... +60 °C (Group assembly) |
| Ambient temperature (Fahrenheit) | -4°F ... +158°F (Single device) / -4°F ... +140°F (Group assembly) |
| Storage temperature | -40 °C ... +80 °C |
| Storage temperature (Fahrenheit) | -40°F ... +176°F |
| Maximum relative humidity | 95% (No condensation) |
| Use at the height of | < 2000 m |
| Overvoltage category | II |
| Degree of pollution | 2 |
| Electromagnetic compatibility | Tested to the following standards and regulations: EN 61326-1 For use in industrial areas; NAMUR NE 21 |
Mechanical Data
| Degree of protection (IP) | IP30 |
| Degree of protection (IP) terminals | IP20 |
| Fire resistance (UL 94) | V0 |
| Enclosure material | Polyamide |
| Connection cross-section | 0.2 to 2.5 mm² flexible / 0.25 to 2.5 mm² flexible with core end sleeve / 0.2 to 2.5 mm² rigid |
| Grid dimension | 17.6 mm |
| Width | 17.6 mm (0.69 in) |
| Height | 114.5 mm (4.51 in) |
| Length | 108 mm (4.25 in) |
| Mounting depth in inches | 4.51 in |
| Weight | 160 g (0.35 lb) |
Mounting / Installation
| Mounting type | DIN rail NS35/15, NS35/7.5 |
| Mounting orientation | Vertical / Horizontal |
| Connection type | Screw terminal |
| Min. rigid conductor cross section | 0.2 mm² |
| Max. rigid conductor cross section | 2.5 mm² |
| Min. flex conductor cross section | 0.2 mm² |
| Max. flex conductor cross section | 2.5 mm² |
| Connection cross-section AWG | 24 ... 14 |
Technical Drawings
The document includes connection diagrams for various input configurations (2-wire, 3-wire, 4-wire) for resistance temperature detectors and potentiometers, illustrating the connection between the field device and the control system. It also shows output configurations for different wire types.
Dimensional Drawings
Detailed drawings show the device dimensions in millimeters and inches, including length, width, and height, as well as mounting depth.
Accessories
| Transparent cover | Yellow, transparent. For 91xx ISpac modules. Clear identification of the device for SIL applications. (Packaging unit: 10 pieces) | Art. No. 200914 |
Spare Parts
Screw terminal
| 3-pole plug, screw connector, thread: M3, stripping length: 7 mm, colour: black | Art. No. 112816 |
| 3-pole plug, screw connector, thread: M3, stripping length: 7 mm, colour: blue | Art. No. 112818 |
| 3-pole plug, screw connector, thread: M3, stripping length: 7 mm, colour: green | Art. No. 112817 |
Screw terminal with test tap
| 3-pole plug with test tap, screw connector, thread: M3, stripping length: 7 mm, colour: blue | Art. No. 113004 |
| 3-pole plug with test tap, screw connector, thread: M3, stripping length: 7 mm, colour: black | Art. No. 113005 |
R. STAHL reserves the right to make alterations to the technical data, dimensions, weights, designs, and products available without notice. The illustrations cannot be considered binding.
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