9.10.6 Reference Channel 1
The arithmetic functions of the function channels, generally, refer to a particular
measuring channel (or 2 meas. channels) (see manual 6.3.4). During the
programming of a function channel the first channel of the corresponding
sensor connector Mxx1 is automatically set as reference channel Mb1. The
2nd reference channel Mb2 (for difference etc.) is, initially, the measuring point
M00. In function ´Ref. Channel 1´ it is possible to set other measuring points as
reference channel, either absolutely by specifying a particular measuring point
or by specifying the ´distance´ referred to the function channel (e.g. -01
identifies the channel preceding the function channel).
Programming of the ref. channel 1 absolute:
RefChannel 1: 01
Programming of the ref. channel 1 relative:
RefChannel 1: -10
9.10.7 Reference Channel 2 or Multiplexer
In case of function channels, which require a second reference channel, the
function ´Ref Channel 2´ will automatically be displayed in the line after ´Ref
Channel 1´. In all other cases it is possible to change the pin assignment in the
connector by changing the input multiplexer (see manual 6.10.2).
Programming of the ref. channel 2 absolute:
RefChannel 2: 00
Programming of the ref. channel 2 relative:
RefChannel 2: -01
Measuring inputs B+ and A-, GND-referred
Multiplexer: B-A
Measuring inputs C+ and A-, GND-referred
Multiplexer: C-A
Measuring inputs D+ and A-, GND-referred
Multiplexer: D-A
Differential measuring inputs C+ and B-
Multiplexer: C-B
Differential measuring inputs D+ and B-
Multiplexer: D-B
9.10.8 Element Flags
For a realization of sensor-specific additional functions, element flags can be
activated at each measuring channel (see manual 6.10.3).
Meas. current 1/10 for Pt1000, 5000
Ω
:
ElementFlags: I 1/10
Emission and background temp. for IR sensors:
ElementFlags: IR
Meas. bridge with switch for final value simulat.:
ElementFlags: Bridge
(Activation base value:) *
ElementFlags: Base
(Activation of all averaging functions:) *
ElementFlags: Avg On
(Element flag 6:) *
ElementFlags: Flag 6
Switch-off of the sensor breakage detection:
ElementFlags: Br Off
Analog output 4-20mA instead of 0-20mA:
ElementFlags: A 4-20
* At the ALMEMO 2590-9 these element flags have no meaning
.
ALMEMO
®
2590-9
59
Special Functions
