BA-440 DualBeam Barcode Reader Quickstart Guide Ver 5
13. Test Wiegand output with Verifier, continued
Red and Green blinking - This indicates that both valid messages and electrical interference are detected on the communications line at the
same time. Some Wiegand messages will fail if the interference occurs when the message is transmitted.
As an added feature, the Verifier circuit is battery powered and can be used as a handheld Wiegand 26 bit verifier for any equipment using
26 bit Wiegand communication. To use the module as a handheld device, Turn the ISO switch down toward the arrow, then connect the Data
0, Data 1, and Common terminals to the Wiegand communication line you want to verify and turn the test circuit ON.
Remember that the test circuit is live for 10 minutes after you turn the test switch ON, then it will go into hibernation. This is to preserve
battery life if the technician forgets to turn the test circuit off. To restart the test circuit, turn the test switch OFF, wait 5 seconds, then turn back
ON. You should see the Green, Red, and Yellow LED's blink
once
in sequence to show that the circuit is live.
14. Place Desiccant pack on Baseplate
Open a Desiccant pouch, then place both bags and Humidity card on Baseplate
under the receiver circuit board as shown. Desiccant should be changed every 6
months during regular optical cleaning. Every time a Model 440 Reader Hood is
removed check the humidity card. If all circles are pink the desiccant must be replaced
before the reader Hood is put back on.
If all circles are pink replace desiccant and
humidity card.
HUMIDI TY INDICATOR
Rear View
Lock Tab at
Rear of Baseplate
Place Desiccant
bag and Humidity
card here
