Datalogic FireScan D141 Manuel de référence rapide - Page 2
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USING FIRESCAN™ SERIES READERS
FireScan™ laser scanners automatically scan barcodes at a distance. Simply aim
and pull the trigger. Code scanning is performed along the scan line emitted from
the reading window.
This line must cross the entire code.
Successful scanning is obtained by tilting the scanner with respect to the barcode
to avoid direct reflections, which impair the reading performance, see the figure
above.
TECHNICAL FEATURES
FireScan™ D141
Electrical Features
Power supply
4.75 - 14 Vdc
Consumption
Operating
180 mA @ 5 Vdc
Stand by
5 mA @ 5 Vdc
Scan Rate
35 ± 5 scans/sec
Laser On (red) LED / Good Read (green
Reading Indicators
LED), Beeper (available for suitable
decoders)
Optical Features
Light Source
VLD 630 ~ 680 nm
Power (peak)
0.9 mW
Scan Angle
42° ± 2°
Laser Safety Class
2
EN 60825-1 / CDRH
Reading Field
see reading diagram
Max. Resolution
0.12 mm (5 mils)
PCS
min. 15% (Datalogic Test Chart)
Environmental Features
0 °C to + 50 °C
Working Temperature
Storage Temperature
-20 °C to + 70 °C
Humidity
90% non condensing
Drop resistance
IEC 68-2-32 Test ED
(on concrete)
1.5 m
ESD Protection
16 KV
Protection Class
IP30
Mechanical Features
Weight (without cable)
about 210 g (7.4 oz)
Cable length
(CAB 397 – fully extended)
2.60 m (8 ft 5 in)
(CAB 396 – fully extended)
3.00 m (9 ft 9 in)
ELECTRICAL CONNECTIONS
The FireScan™ D141 scanner can be used with CAB 397 (coiled cable and 9-pin
male connector) for direct connection to the DATAPLUS and DLD series decoders.
CAB 397
1 - Not connected
5 - TRIGGER
1
2
3
4
5
2 - SCAN
6 - BEEPER/LED
3 - Not connected
7 - VIDEO
6
7
8
9
4 - GND
8 – LASER ON
9 - +VCC
9-pin male connector
The FireScan™ D141 scanner can be used with CAB 396 (coiled cable and 8-pin
modular connector) for direct connection to PSC Inc. flat bed scanners.
CAB 396
1 - TRIGGER
5 - BEEPER/LED
8
1
2 – LASER ON
6 - Not connected
3 - Not connected
7 - +VCC
4 - VIDEO
8 - GND
8-pin modular connector
A definition of the terms used to identify the pins is as follows:
SCAN
This scanner "open collector" output signal is used to
synchronize the decoding logic with the scanner. Each
transition of this signal from low-to-high or high-to-low
corresponds to the start of a scan. The signal is a TTL level
57 ms period square wave (see the following figure Video and
Scan signals).
GND
Supply ground and signal reference.
TRIGGER
This output is connected to GND when the trigger is pressed
and is left floating when the trigger is released.
BEEPER/LED
This scanner input drives the green decoding LED, and the
beeper in the scanner. The LED turns on when a positive
current is applied to the pin. The beeper sound is obtained
pulsating this current at a frequency of about 2 kHz. The
maximum voltage that can be applied to this input is 5 Vdc.
VIDEO
This "open collector" scanner output is electrically identical to
the barcode. It supplies a series of pulses the length of which
are proportional to the width of the elements within the
barcode read. A low output level corresponds to a bar. The
frequency of the pulses depends on the density of the code,
the distance from code and the programmed output scan
frequency (see the following figure Video and Scan signals).
LASER ON
A positive voltage between 4.75 and 5 Vdc is applied to this
input by the decoder when the decoding logic senses the
trigger is pressed; this causes the laser to start scanning and
the red LED to turn on.
+VCC
This input must be connected to the positive pin of the supply
voltage (4.75 - 14 Vdc). When the LASER ON pin is positive,
all the current necessary to power the scanner flows through
+VCC.
CODE
VIDEO
SCAN
Video and Scan Signals