PR Electronics 9106B is a HART transparent isolated repeater barrier for intrinsic safety applications. The 9106B signal conditioning repeater supplies 2-wire SMART transmitters and can also be used for 2-wire SMART current sources. HART & BRAIN protocols are supported and are transferred bi-directionally. Used anywhere intrinsically safe levels of energy need to be sent to devices located in a flammable atmosphere. The 9106B has been designed, developed and certified for use in SIL 3 applications according to the requirements of IEC 61508.

• Can be mounted in the safe area or in zone 2 / Cl. 1, div. 2 and receive signals from zone 0, 1, 2 and zone 20, 21, 22 including mining / Class I/II/III, Div. 1, Gr. A-G
• Configuration and monitoring by way of detachable display front (PR 4501)
• 2.6 kVac galvanic isolation between input, output and supply
• Selection of direct or inverted function for each channel via PR 4501
• Monitoring of internal error events via the individual status relay and/or a collective electronic signal
• Designed, developed and certified for use in SIL 3 applications
• Front LED indicates operation status and malfunction
• Can be supplied separately or installed on power rail, PR type 9400
• Fast response time <5 ms
• High accuracy better than 0.1%.
• 2-wire transmitter supply >16 V
• Output line fault detection
• DIN rail mounting
• Active and passive mA input
• Active or passive output via the same two terminals

The 9106B universal transmitters are programmable via the PR 4501 detachable display module (238-0641). The 4501 module allows the programming of the vast array of input and output parameters easily and safely. Together with advanced functions including 2 point calibration, process simulation and diagnostics.
With a simple menu and explanatory text the 4501 is extremely straightforward to navigate. Functions are clearly depicted on the 4 line LCD display even in low light conditions. Line 1 shows the input signal, line 2 shows the units, and line 3 shows analogue output or tag number. Line 4 shows the communication and relay status. In addition the 4501 features password protection. Programming access can be blocked by assigning a password which is conveniently saved in the 9106B transmitter. This ensures a high degree of protection is maintained and prevents any unauthorised modifications to the configuration.

The HART protocol is a low speed, digital communications scheme that is carried on a 4 to 20 mA current signal. As 4 to 20 mA loops are commonly used in industry, the HART protocol is easy to implement, easy to use, and easy to troubleshoot. Devices that communicate via HART are popular in many industries.

PR Electronics - Ex Interfaces