PR 3202 Pulse Isolator / Switch Amplifier

Description

The 3202 is a compact and versatile pulse isolator / switch amplifier built for rugged industrial environments. It features input compatibility for NAMUR sensors as well as open-collector NPN or mechanical contact signals. In addition, the 3202, from PR electronics, provides two independent outputs (either relay or fast-switching NPN transistor). It also offers high 4-port galvanic isolation (2.5 kVAC) to protect against surges, ground loops, and electrical noise. Key safety features include Line Fault Detection (cable break or short) and over-voltage/polarity protection. The PR 3203 is powered by 16.8-31.2 VDC and operates over -13 to 148˚F (-25 to 70˚C). Furthermore, its narrow 6.1 mm DIN-rail mountable design helps maximize cabinet space without compromising performance.

• interfaces a NAMUR sensor to typical control system input cards
• high 4-port isolation provides surge suppression that protects the control system from transients and noise in addition to eliminating ground loops
• provides simple splitter function: 1 in – 2 out
• monitor signal source for cable short-circuit or cable break with alarm function on secondary output, power rail, as well as LED status
• the device can mount in Safe area or in Zone 2 / Division 2 areas
• all terminals offer over-voltage protection, polarity protection, and also short-circuit protection

PR 3202 Pulse Isolator / Switch Amplifier

• output options: NPN transistor or mechanical relay
• response time: Relay < 20 ms / NPN < 0.1 ms
• collective DIN-rail alarm
• Line Fault Detection (LFD) / cable break detection
• wide ambient temperature range -13 to 158˚F (-25 to 70˚C)
• NAMUR NE21, NE44
• conforms to IEC 60947 standard – switch amplifiers for NAMUR sensors

Easy Programming and Mounting

• easy configuration via DIP-switches
  • applicable devices can configure via DIP-switches
  • the DIP-switches are on the side of the device and can adjust with a small screwdriver or also other implement
  • remember to cycle power for power rail as well as the terminals to reload DIP-switch values at power up
  • the PR 3202 features two independent outputs: Out 1 and Out 2
  • the two outputs are normally open / not energized
  • Out 2 can be a copy of input to form a splitter functionality or Out 2 can indicate LFD alarm
  • each output can invert individually
• units can mount side by side, horizontally, as well as vertically, without air gap on a standard DIN rail, even at 158˚F (70°C) ambient temperature
• units can receive supply separately in addition to being able to install on PR 9400 power rail
• the narrow 6.1 mm housing allows up to 163 units per meter

status indicators – front LEDs

User-Friendly Operation and Troubleshooting on the PR 3202 Pulse Isolator / Switch Amplifier

The PR 3202 pulse isolator and switch amplifier provides multiple features for easy user operation and also for performing efficient troubleshooting. Monitoring the operational status is easy from the front LED(s).