ATEX & IECEx HART Signal Driver

Model : PR 9107B

Brand: PR Electronics

Isolated barrier and HART transparent driver for harsh and hazardous environments

  • 24 VDC supply via power rail or connectors
  • Fast response time
  • High active output load 725 Ohm / 20 mA
  • Output line fault detection via status relay
  • Loop break and sensor error detection
  • 2.6kVAC galvanic isolation
  • SIL2 certified via Full Assessment according to IEC 61508

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Isolated Barrier, Signal Driver, Signal Isolator


PR Electronics

Number of Inputs

1, 2

Input Type

DC Current

Number of Outputs

1, 2

Output Type

DC Current

Transmission Rate

2400 to 115200 bit/s


4500 series devices


≤ ±16 μA


ATEX, CCC, DNV, EAC Ex, FM, IECEx, INMETRO, SIL2 Full Assessment IEC 61508, UL

Power Supply

20…30 VDC


2.6 kVAC

Operating Temperature

-20 to +60°C

Temperature Coefficient

< ±0.01% of span /°C

Protection Degree

IP 20


109×23.5×104 mm



Other product features

1ch, 2ch


250 g


175 × 150 × 35 mm


  • 9107B is a 1- or 2-channel isolated 1:1 driver barrier for intrinsic safety applications.
  • Operation and drive control of I/P converters, valves, and indicators mounted in the hazardous area.
  • Operation of HART devices is possible as the unit transmits HART communication signals bi-directionally.
  • 9107B can be mounted in the safe area or in zone 2 / Cl. 1, div. 2 and transmit signals to zone 0, 1, 2, and zone 20, 21, 22, including mining / Class I/II/III, Div. 1, Gr. A-G.
  • The PR 45xx displays the process value for each channel and can be used to define high and low limits for the detection of loop current level. If these limits are exceeded, the status relay will activate.
  • Dual channel versions can be used for signal splitter applications – 1 in and 2 out.

Advanced features

  • The PR 45xx detachable display and the green and red front LEDs indicate the operation status for each channel.
  • A tag number can be defined for each channel.
  • Output line fault detection.
  • In the 1-channel version, the status relay can be used as a simple limit switch.
  • Suitable for use in systems up to Performance Level “d” according to ISO-13849.

Technical characteristics

  • High galvanic isolation of 2.6 kVAC.
  • High accuracy is better than 0.1%.
  • Continuous check of vital stored data for safety reasons.


  • The devices can be mounted vertically or horizontally without distance between neighbouring units.

Source: PR9107B Official Page

Product Documents:


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