Pulse Isolator – PR Electronics 9202A

Features

  • Interface for NAMUR sensors and switches
  • Extended self-diagnostics and detection of cable fault
  • 1 or 2 channels
  • Can be supplied separately or installed on power rail, PR type 9400
  • SIL 2-certified via Full Assessment
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Advanced features

  • Configuration and monitoring by way of detachable display front (PR 45xx).
  • Selection of direct or inverted function for each channel via PR 45xx.
  • Advanced monitoring of internal communication and stored data.
  • Optional redundant supply via power rail and/ or separate supply.
  • SIL 2 functionality is optional and must be activated in a menu point.

Application

  • 9202A can be mounted in the safe area and in zone 2 / Class 1, Division 2, Group A, B, C, D.
  • Pulse isolator for transmission of signals from NAMUR sensors and mechanical switches.
  • Monitoring of error events and cable breakage via the individual status relay and/or a collective electronic signal via the power rail.
  • The 9202A has been designed, developed and certified for use in SIL 2 applications according to the requirements of IEC 61508.
  • Suitable for the use in systems up to Performance Level “d” according to ISO-13849.

Technical characteristics

  • 1 green and 2 yellow/red front LEDs indicate operation status and malfunction.
  • 2.6 kVAC galvanic isolation between input, output and supply.

Mounting

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

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature -20°C to +60°C
Storage temperature -20°C to +85°C
Calibration temperature 20…28°C
Relative humidity < 95% RH (non-cond.)
Protection degree IP20
Installation in Pollution degree 2 & meas. / overvoltage cat. II
MECHANICAL SPECIFICATIONS
Dimensions (HxWxD) 109 x 23.5 x 104 mm
Dimensions (HxWxD) w/ 4501/451x 109 x 23.5 x 116 / 131 mm
Weight approx. 170 g
Weight incl. 4501 / 451x (approx.) 185 g / 200 g
DIN rail type DIN EN 60715/35 mm
Wire size 0.13…2.08 mm2 AWG 26…14 stranded wire
Screw terminal torque 0.5 Nm
Vibration IEC 60068-2-6
2…13.2 Hz ±1 mm
13.2…100 Hz ±0.7 g
COMMON SPECIFICATIONS
Supply
Supply voltage 19.2…31.2 VDC
Fuse 400 mA SB / 250 VAC
Max. required power ≤ 1.1 W…≤ 1.3 W / ≤ 1.5 W…≤ 1.9 W (1 / 2 ch.)
Max. power dissipation, 1 / 2 ch. ≤ 1.2 W / ≤ 1.6…1.8 W
Isolation voltage
Test /working: Input to any 2.6 kVAC / 300 VAC reinforced isolation
Output 1 to output 2 1.5 kVAC / 150 VAC reinforced isolation
Status relay to supply 1.5 kVAC / 150 VAC reinforced isolation
Auxiliary supplies
NAMUR supply 8 VDC / 8 mA
Programming PR 45xx
Response time for cable fault < 200 ms
INPUT SPECIFICATIONS
Sensor types NAMUR according to EN 60947-5-6 / mechanical contact
Frequency range 0…5 kHz
Min. pulse length > 0.1 ms
Input resistance Nom. 1 kΩ
Trig level, signal < 1.2 mA, > 2.1 mA
Trig level, cable fault < 0.1 mA, > 6.5 mA
OUTPUT SPECIFICATIONS
Relay output
Max. switching frequency 20 Hz
Max. voltage 250 VAC / 30 VDC
Max. current 2 AAC / 2 ADC
Max. AC power 500 VA / 60 W
Status relay
Max. voltage 125 VAC / 110 VDC
Max. current 0.5 AAC / 0.3 ADC
Max. AC power 62.5 VA / 32 W
NPN outputs
Max. switching frequency 5 kHz
Min. pulse length > 0.1 ms
Max. load, current / voltage 80 mA / 30 VDC
Voltage drop at 80 mA < 2.5 VDC
OBSERVED AUTHORITY REQUIREMENTS
EMC 2014/30/EU
LVD 2014/35/EU
ATEX 2014/34/EU
RoHS 2011/65/EU
EAC TR-CU 020/2011
EAC Ex TR-CU 012/2011
EAC LVD TR-CU 004/2011
APPROVALS
ATEX KEMA 07ATEX0146 X
IECEx KEM 06.0039X
c FM us FM19US0055X / FM19CA0028X
c UL us, UL 61010-1 E314307
c UL us, UL 913 E233311 (only 9202xxx-U9)
EAC Ex RU C-DK.HA65.B.00355/19
DNV-GL Marine TAA00000JD
ClassNK TA18527M
SIL SIL 2 certified & fully assessed acc. to IEC 61508

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