Dräger Polytron Pulsar 2 User Manual

The Dräger Polytron Pulsar 2 Digital Interface AI500
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The Dräger Polytron Pulsar 2 Digital Interface AI500
Description
The AI500 is a compact DIN/EN rail-mounted unit, normally located in the Non-hazardous Area. It communicates digitally with one to four
Dräger Polytron Pulsar 2s and provides easy access to their current measured values, their configurations, and their internal data-logger
records. The measurements include not only gas reading and signal strength, but such detailed information as supply voltage, tempera-
ture, noise level and the x y alignments of Transmitter and Receiver. Data is available through a hard-wired EIA RS 422/485 communica-
tions port, a separate port for the Hand-held Terminal (or Communicator), and as an infra-red signal to a Data Wand.
This multiplicity of functions allows the AI500 to be used in systems with different levels of complexity. In a fully-engineered installation
the full current and historical data are available continuously to a central system via an EIA RS 485 multidrop. In the simplest, only the 4
20mA signal from each Dräger Polytron Pulsar 2 is used for indication and control action, with states requiring operator attention sig-
nalled as static values of the current. When a Dräger Polytron Pulsar 2 is identified as requiring investigation, the operator uses the non-
contacting Data Wand to download the diagnostic information into a notebook PC. The file can then be examined locally or e mailed.
In all cases, the Hand-held Terminal (or Communicator) is able to call up any one of the Dräger Polytron Pulsar 2 Receivers connected to
the AI500 and has the same functionality as if connected to the field unit at its possibly inaccessible location.
Environmental
The AI500 must be used only in a Safe (Non-hazardous) Area or within a suitably certified enclosure within the Hazardous Area. The
atmosphere should be non-condensing and free of contaminants or pollutants harmful to electronic equipment.
The working temperature range is 0
o
C to +55
o
C for individual units with free air circulation, and 0
o
C to +45
o
C for multiple units in con-
tact on the mounting rail.
NOTE: where temperatures exceed 45
o
C, multiple units stacked on a mounting rail horizontally or vertically should be spaced a mini-
mum of 15mm apart to allow air circulation
Power Supply
Power Supply: 24V DC nominal
Supply Range: 20 to 32V
Consumption: 3W maximum
Internal Fuse: 250mA
Mechanical
Mounting:
35mm symmetrical rail (to EN50 022)
32mm asymmetrical rail (to EN50 035)
15mm symmetrical rail (to EN50 045)
Dimensions:
Above rail 80mm (with Connector 1: +10mm)
Across rail 80mm (with Connector 2 and 3: +20mm)
Along rail 25mm
Weight: 120g
Electromagnetic compatibility
EN 50081-1
EN 50081-2
EN 50082-1
EN 50082-2
EN 61000-6-2
FCC Class A
Infra-red output
Serial binary data is output via the Data Wand DW100 to an IBM-PC compatible portable computer running Draeger-PLMS proprietary
software. The infra-red coupling requires the tip of the Wand to be brought within 30mm of the emitters adjacent to Connector 1. Current
measurements are output every 1.5 sec maximum, complete historical data for four Dräger Polytron Pulsar 2s takes 12 sec. The infra-red
output is automatically inhibited when the unit is addressed via the EIA-RS-422/485 bus.

Dräger Polytron Pulsar 2 Specifications

General

Brand	Dräger
Model	Polytron Pulsar 2
Category	Security Sensors
Language	English