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
  1. Overview + -

  2. Technical details + -

  3. Order and delivery + -

  4. Why choose PR + -

Application

  • 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

  • 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

  • Flexible horizontal/vertical 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 at www.prelectronics.com/backplane

Data sheet & Manuals


Data sheet

Manuals

ABB wiring manual

Honeywell wiring manual

Universal wiring manual

Yokogawa wiring manual

Approvals & Certificates


ATEX certificate

IECEx certificate

FM certificate

UL certificate

EAC declaration

Metrology Pattern Approval (MPA), Russia

Safety note

Environmental Conditions

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 & meas. / overvoltage cat. II

Mechanical specifications

Dimensions (HxWxD) 144 x 247 x 141 mm
Wire size 2.5 mm2 / AWG 12 (Supply 1 / 2 and status relay connectors)

Common specifications

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

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

EMC 2014/30/EU
EAC TR-CU 020/2011

Approvals

UL UL 508 / C22.2 no. 14
ATEX DEKRA 13ATEX0136X
IECEx DEK 13.0044X
FM 0003049918-C

 

Need support to select the right product for your application?

Our sales engineers are ready to help specify the right device to meet your needs.

 

Reach out by phone to get in touch with us straight away – or use the contact form or quick quote function to send your RFQ directly from the website. You’ll get a response within 24 hours on normal business days.

 

You can expect to get a confirmed delivery date via email within 2 days after we have received your order.

 

As soon as your package leaves our warehouse, you’ll receive tracking details via email. And if you have any questions along the way we’re just a phone call or email away.

 

State-of-the-art manufacturing

State-of-the-art manufacturing

Our 8,500 sqm integrated and automated manufacturing campus in Denmark covers the entire value-chain from design and development to manufacturing. It allows us to design and optimize for testing and manufacturing thereby constantly driving quality up and costs down.

 

Dedicated Presales / Aftersales

Dedicated Presale / Aftersales
Our more than 80 dedicated sales engineers can help specify the right device for your application. Backed by our 9 subsidiaries and more than 40 dedicated partners, we are directly accessible in more than 40 countries around the world.

 

Find a PR location close to you

 

Product reliability

Product reliability
Although we’d always like to be top of mind, we recognize our job is mainly to provide peace of mind. Install & Forget® is our way of saying that once installed, our devices will continue to perform even in the toughest environments. And we are not afraid to back that statement up with commitments.

 

Product deployment

Product deployment
Our devices are intuitive and simple to configure. Once installed they visualize rich diagnostics data, allowing the operator to plan preventative maintenance, maximizing process up-time.

 

 

Smart products

Smart products
Many of our devices are designed to accommodate current and future communication enablers, providing the operator with multifunctional capabilities that extends into the future.

 

Check out our range of communication interfaces

 

Smart products

 

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