CAS BW-SERIES, Service Manual

Page: 6 / 24

- 6 -
TEST 1
(Enter ‘TEST’ mode to start TEST 1.)
FUNCTION : Liquid crystal display Test
KEY LC DISPLAY DESCRIPTION
ENTER Key : Next menu
Display TEST 1 state.
TEST 2
FUNCTION : A/D conversion test
KEY LC DISPLAY DESCRIPTION
ENTER Key : Next menu
ZERO Key :
Use to set the current
value to “0”
Display TEST 2 state.
Display the digital value corresponding to
current weight.
Note 1.
▶
Check whether the digital value is changing whenever you load or unload
the weight on the platter. If the digital value is fixed or zero is
displayed,
please check the connection of loadcell.
TEST 3
FUNCTION : Key test
KEY LC DISPLAY DESCRIPTION
ENTER key : Next menu
Other key : Test execution
Display TEST 3 state.
Press the key to be tested and the No. of
key mode should be identifying with code
of key as the follows.
<KEY CODE>
KEY CODE KEY CODE
* 1 GROSS /NET 4
ZERO 2 HOLD or kg/lb 5
TARE 3
TEST 4
FUNCTION : RS-232C communication test
KEY LC DISPLAY DESCRIPTION
ENTER key :
Move to weighing mode.
Other key :
Execute data transmission
to a computer.
Display TEST 4 state.
Waiting for transmission and reception.
Received : None, Transmitted : 1
Received : 2, Transmitted : 1
Press ENTER key.
When this test is completed, it is
automatically moved to NORMAL MODE.
▶
Note 1. Connect the computer COM port with RS232C connector of indicator before
running this test.
▶
Note 2. Send No. 2 in computer keyboard and check if indicator receives No.2 send No. 1
in indicator keyboard and check if computer receives No.1