8. ANALOG OUTPUT
For the analog registration of the selected measuring point you can, to sockets
A1 or A2, connect either an analog output cable ZA 1601-RK (see Manual,
Section 5.1.1) without electrical isolation or a relay trigger analog adapter ZA
8000-RTA (see Manual, Section 5.1.3) with electrically isolated analog output.
8.1 Scaling
It is possible to spread any partial measuring range over the standard output si-
gnal in the three possible variants 0-2 V, 0-10 V, 0 / 4-20 mA, providing it
comprises at least 100 digits (e.g. 0-20 mA for -10.0 to +50.0 °C). To do so,
enter, in the functions ´
AS
´ and ´
AE
´, the analog output start and the analog out-
put end of the desired measuring range (see also Manual, Section 6.10.7). If
the start value is zero, this will simply be deleted. To activate the ´
AA
´ and ´
AE
´
functions see Section 5.2.
Analog output start function ´
AS
´
Select by the
FUNCTION
key
Enter as per Sec. 5.4
Analog output end function ´
AE
´
Select by the
FUNCTION
key
Enter as per Sec. 5.4
Example:
Measuring range -10.0 to +50.0 °C
These two parameters, “analog output start” and “analog output end”, are also
saved in the sensor EEPROM and can thus be individually programmed for
each channel; i.e. when channels are switched through manually each measur-
able variable can be individually scaled.
Thanks to continuous measuring point scanning it is even possible to connect
two analog outputs at the same time. The output of A2 supplies the measured
value of the selected channel; the output of A1 supplies the measured value of
the 1st channel of the selected sensor (see also Manual, Section 6.10.7).
Adjusting the measuring channel A2 on a certain channel about the interface
(see also Manual) and keyboard:
1. Adjusting the measuring channel:
M
▲
1:
2
3
.
4
°
C
2. Select function Analog output start ´
AA
´:
1:
-
1
0
.
0
A
A
3. Start Programming key:
PROG
-`0´0
1
0
.
0
A
A
4. The measuring chan. as a Analog chan.:
and holding down (appr. 1s)
M
▲
1:
-
1
0
.
0
AS
1:
0
5
0
.
0
AE
ALMEMO
2390-5
49
Device programming
Содержание ALMEMO 2390-5
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