Ahlborn ALMEMO 2490-1A, Руководство по эксплуатации

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12.
DEVICE CONFIGURATION
On the ALMEMO ® 2490A measuring instru-
ment a number of parameters can be config-
ured. To do so when switching ON press and
hold down key
MEM
. The function field should
then show an abbreviation for the parameter
and the main field should show the value cur-
rently set.
To select from all possible parameters,
if any are available, press keys :
M ▲
or
M ▼
.
Device address; see 12.1
Locking the
CLR
key: see 12.4
Reference channel and scaling for
1st analog output (at socket A2): see 12.2
Reference channel and scaling for
2nd analog output (at socket A1): see 12.2
Automatic switch OFF time in minutes: see 12.3
Air pressure for measuring value compensation
To enter a value first press :
ON
and the value starts
flashing.
To modify the value press keys :
M ▲
or
M ▼
To delete parameters press :
CLR
select the next digit or entry is completed :
ON
To terminate or cancel configuration :
MEM
12.1
Device address and networking
To communicate with networked devices it is absolutely indispensable that each
device should have its own baud rate (standard 9600 bd) setting and its own
dedicated address; this is because only one device should respond per com-
mand. Before starting network operation ensure therefore that all the measuring
instruments involved are assigned different device addresses. This is the pur-
pose of the afore-mentioned ´
Adr
´ parameter.
12.2
Analog output
By default the 1st analog output (cable at A2) is used to output the measured
value for the selected measuring point and the 2nd analog output (cable at A1) is
used to output the measured value for the 1st channel of the selected sensor;
(see Manual 6.10.7). The internal analog outputs P0-6, P0-7 initially behave
adäquat (see 11.2).
m b
1013
AOFF
ACh2
ACh1
Adr
Loc
A2
A1