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> PR electronics
PR electronics 7908 System 9000 backplane
- Product Model：PR electronics 7908
- Country of origin：Denamrk
- Delivery time：2 weeks
- Weight：4Kg
- Product Description: The PR transmitter is 100% brand new and origin in Denmark. We also have the competitive price and short delivery time. Welcome to compare the price.
Product introduction
PR electronics 7908 System 9000 backplane
Description
PR electronics 7908 System 9000 backplane 7908
Description
PR electronics 7908 System 9000 backplane 7908
Provides safe, easy wiring between the backplane and non I.S. automation systems using standard prefabricated I/O cables
Direct, Redundant and Duplicate signalling - including HART I/O
Robust, compact high-end design solution for 8 system 9000 units
Digital output and LEDs indicate backplane system status
Application
PR electronics 7908 System 9000 backplane 7908
The 7908 backplane is a compact and robust solution that enables a safe and easy connection of PR system 9000 IS device signals into standard automation systems.
Standard automation system cables and connectors are used to link the backplane to the I/O cards.
The backplane can be used for Direct, Redundant, Duplicate signalling including HART I/O System connectivity (HART MUX).
The system 9000 devices isolate and convert AI, AO, DI and DO signals coming from, or going to the I.S. classified area, and routes those signals to a system automation I/O card.
The system 9000 units maintain a SIL2/SIL3 level of functional safety, even when mounted in the backplane solution.
Technical characteristics
PR electronics 7908 System 9000 backplane 7908
Robust, compact high-end design that holds 8 system 9000 units.
Digital output indicates status of the 9000 devices and primary/back-up power supplies.
Flexible 24 VDC supply voltage and redundant power supply connection solution.
Mounting / installation / programming
PR electronics 7908 System 9000 backplane 7908
Flexible horizontalF{0XCAB)LKNIT0K@G.gif)
ertical panel or wall mounting in the Safe or Zone 2 / Div 2 areas.
System 9000 devices easily snap ON and OFF using piano keys, and devices can be hot-swapped.
Tag number and ID labels are easily mounted and read by using the dedicated piano key spacer.
Wide temperature operation range: -20...+60°C.
Backplane selection guide can be found
PR electronics 7908 System 9000 backplane 7908
The 7908 backplane is a compact and robust solution that enables a safe and easy connection of PR system 9000 IS device signals into standard automation systems.
Standard automation system cables and connectors are used to link the backplane to the I/O cards.
The backplane can be used for Direct, Redundant, Duplicate signalling including HART I/O System connectivity (HART MUX).
The system 9000 devices isolate and convert AI, AO, DI and DO signals coming from, or going to the I.S. classified area, and routes those signals to a system automation I/O card.
The system 9000 units maintain a SIL2/SIL3 level of functional safety, even when mounted in the backplane solution.
Technical characteristics
PR electronics 7908 System 9000 backplane 7908
Robust, compact high-end design that holds 8 system 9000 units.
Digital output indicates status of the 9000 devices and primary/back-up power supplies.
Flexible 24 VDC supply voltage and redundant power supply connection solution.
Mounting / installation / programming
PR electronics 7908 System 9000 backplane 7908
Flexible horizontal
ertical panel or wall mounting in the Safe or Zone 2 / Div 2 areas.System 9000 devices easily snap ON and OFF using piano keys, and devices can be hot-swapped.
Tag number and ID labels are easily mounted and read by using the dedicated piano key spacer.
Wide temperature operation range: -20...+60°C.
Backplane selection guide can be found
Environmental Conditions
PR electronics 7908 System 9000 backplane 7908
Operating temperature -20°C to +60°C
Storage temperature -40°C to +85°C
Relative humidity < 95% RH (non-cond.)
Installation in Pollution degree 2 & measurement / overvoltage cat. II
Mechanical specifications
PR electronics 7908 System 9000 backplane 7908
Dimensions (HxWxD) 144 x 247 x 141 mm
Wire size 2.5 mm2 / AWG 12 (Supply 1 / 2 and status relay connectors)
Common specifications
PR electronics 7908 System 9000 backplane 7908
Supply
Supply voltage 20...31.2 VDC (24 DC nom.)
Max. required power ≤ 30 W
Isolation voltage
Isolation voltage, test / working 500 VAC / 50 VAC (Basic isolation between supply 1 & 2 and status relay)
Replaceable fuses Fuse F1 & F2: 1.6 A SB, 250 V, type TR5
Output specifications
PR electronics 7908 System 9000 backplane 7908
Status relay
Max. voltage 32 V (Zone 2 / Div. 2 area) 42 V (Safe area)
Max. current 100 mA (Zone 2 / Div. 2 area) 100 mA (Safe area)
Observed authority requirements
PR electronics 7908 System 9000 backplane 7908
EMC 2014/30/EU
EAC TR-CU 020/2011
Approvals
UL UL 508 / C22.2 no. 14
ATEX 2014/34/EU DEKRA 13ATEX0136X
IECEx DEK 13.0044X
FM 0003049918-C
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PR electronics 6334B2B 2-wire programmable transmitter temperature transmitter
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