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9202
 

9202B

 

Pulse isolator

 

  • 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
  1. Overview

  2. Technical details

  3. Accessories


Advanced features

  • Configuration and monitoring by way of detachable display front (PR 4501).
  • Selection of direct or inverted function for each channel via PR 4501.
  • 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

  • 9202B 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.
  • Pulse isolator for transmission of signals to the safe area from NAMUR sensors and mechanical switches installed in the hazardous area.
  • Monitoring of error events and cable breakage via the individual status relay and/or a collective electronic signal via the power rail.
  • The 9202B has been designed, developed and certified for use in SIL 2 applications according to the requirements of IEC 61508.

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.

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 & measurement / overvoltage cat. II

Mechanical specifications

Dimensions (HxWxD) 109 x 23.5 x 104 mm
Dimensions (HxWxD) w/ 4501 / 4511 109 x 23.5 x 116 / 131 mm
Weight approx. 170 g
Weight incl. 4501 / 4511 (approx.) 185 g / 270 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 ≤ 3 W (2 channels)

Isolation voltage

Test /working: Input to any 2.6 kVAC / 300 VAC reinforced isolation
Analog output to supply 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 Communication enabler 4511 / Programming front 4501
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 110 VDC / 125 VAC
Max. current 0.3 ADC / 0.5 AAC
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
EAC TR-CU 020/2011

Approvals

ATEX 2014/34/EU KEMA 07ATEX0146 X
IECEx KEM 06.0039X
FM 3034430-C
INMETRO NCC 12.1307 X
UL UL 61010-1
EAC Ex TR-CU 012/2011 RU C-DK.GB08.V.00410
CCOE P337349/5
DNV-GL Marine Stand. f. Certific. No. 2.4
SIL SIL 2 certified & fully assessed acc. to IEC 61508
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