R. STAHL Isolator Barriers: Resistance Isolator
Product Series: Ex i field circuit ISpac
Model: 9180/21-77-11s
Article Number: 160502
Product Overview
The R. STAHL 9180 series Ex i resistance isolators are designed for the intrinsically safe operation of Pt100 (9180/.0) or Pt1000 (9180/.1) resistance temperature detectors. These isolators measure resistance at the input and transmit it to the output, allowing it to be read by an I/O card. The auxiliary power, output, and intrinsically safe input are galvanically separated. Key features include world's only two-channel device requiring just 8.8 mm of space per channel and suitability for two-, three-, and four-conductor connections.
Technical Data
Explosion Protection
| Application range (zones) | 0, 1, 2, 20, 21, 22 |
| Ex interface zone | 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 | See Doc. 9180 6 031 001 1 |
| Ship approval | ATEX (BVS), Brazil (ULB), Canada (FM), China (NEPSI), IECEx (BVS), India (PESO), Korea (KTL), USA (FM) |
| Declaration of conformity | CCS, EU RO MR (DNV) |
| Safety Data | ATEX (EUK), China (CCC) |
| Max. voltage U｡/V | 6.5 V |
| Max. current Io/Isc | 16.5 mA |
| Max. power Po | 27 mW |
| Max. permissible external capacitance C/C for IIC | 25 μF |
| Max. permissible external inductance L/La for IIC | 120 mH |
| Max. permissible external capacitance C/C for IIB | 570 μF |
| Max. permissible external inductance L/La 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
| Jointly connectable inductance L/capacitance C₀ | ||||||||
| L. [mH] | C₀ [µF] | L. [mH] | C₀ [µF] | L. [mH] | C₀ [µF] | L. [mH] | C₀ [µF] | |
| IIC | 50 mH | 1.100 μF | 5 mH | 1.700 μF | 1 mH | 2.300 μF | 0.200 mH | 3.400 μF |
| IIB | 100 mH | 5.300 μF | 20 mH | 6.900 μF | 2 mH | 11 μF | 0.500 mH | 1.500 μF |
| IIIC | 100 mH | 5.300 μF | 20 mH | 6.900 μF | 2 mH | 11 μF | 0.500 mH | 1.500 μF |
Electrical Data
| Number of channels | 2 |
| LFD relay | Yes |
| Measuring range | 180 to 3910 Ω |
| Auxiliary Power | 24 V DC |
| Nominal voltage Vnom | 24 V DC |
| Auxiliary power voltage range | 18 ... 31.2 V |
| Voltage range residual ripple | ≤ 3,6 VSS |
| Nominal current | 37 mA |
| Power consumption | 0.89 W |
| Max. power dissipation | 0.72 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 Specifications
| Sensor adjustment | DIP switch |
| Medium-resolution input | 0.2 Ω |
| Input for resistance temperature detector | Pt 100 or 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) |
| Max. line resistance per wire RTD | 100 Ω (3-, 4-wire connection) |
Output Specifications
| Output signal | Equal 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 signalization | Contact (30 V/100 mA), closed against earth in case of error |
| Deviations / error note | Information in % of the measuring range (20 mA) at UN, 23 °C |
| Average measurement fault | < 0,1% |
| Temperature influence | ≤ 0,1%/10K |
Ambient Conditions
| Ambient temperature °C | -20 °C ... +70 °C (Single device) -20 °C ... +60 °C (Group assembly) |
| Ambient temperature °F | -4°F ... +158°F (Single device) -4°F ... +140°F (Group assembly) |
| Note | The installation conditions affect the ambient temperature. Observe the "Cabinet installation guide". |
| Storage temperature °C | -40 °C ... +80 °C |
| Storage temperature °F | -40°F ... +176°F |
| Max. relative humidity | 95% |
| Max. additional relative humidity | 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 |
| Width, inches | 0.69 in |
| Height | 114.5 mm |
| Length | 108 mm |
| Length in inches | 4.25 in |
| Mounting depth in inches | 4.51 in |
| Weight | 180 g |
| Weight | 0.4 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
Hazardous Location:
- Division 1, Zone 0/1
Nonhazardous Location:
- Division 2, Zone 2
- pac-Bus
- LF 24V
- 24 V DC
Field Device:
- ISpac Isolator
Control System:
- 24 V DC
Connection diagram: 9180/21-77-11
Dimensional Drawings
Dimensions in mm [inches]:
- Length: 108 [4.25]
- Width: 17.6 [0.69]
- Height: 114.5 [4.51]
ISpac Series compatibility: 9143, 9146, 9147, 9160, 9162, 9163, 9165, 9167, 9170, 9172, 9175, 9176, 9180, 9182, 9193, ISbus Series 9412 with screw terminal.
Accessories
| Item: Transparent cover | Description: For 91xx ISpac modules, Yellow, transparent. Clear identification of the device for SIL applications. (Packaging unit: 10 pieces) | Art. No.: 200914 |
Spare Parts
Screw terminal
| Description: 3-pole plug, screw connector | Thread: M3 | Stripping length: 7 mm | Color: black | Art. No.: 112816 |
| Description: 3-pole plug, screw connector | Thread: M3 | Stripping length: 7 mm | Color: blue | Art. No.: 112818 |
| Description: 3-pole plug, screw connector | Thread: M3 | Stripping length: 7 mm | Color: green | Art. No.: 112817 |
Screw terminal with test tap
| Description: 3-pole plug with test tap, screw connector | Thread: M3 | Stripping length: 7 mm | Colour: blue | Art. No.: 113004 |
| Description: 3-pole plug with test tap, screw connector | Thread: M3 | Stripping length: 7 mm | Colour: black | Art. No.: 113005 |
General Information
R. STAHL, INC. | 13259 N. Promenade Blvd. | Stafford, TX 77477 | Tel. +1 800 782 4357
Email US: sales.us@r-stahl.com | Email CAN: sales.ca@r-stahl.com | rstahl.com
We reserve 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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