Analog Output - Ecom ECD2800 User Manual

Setting
(DIN1)
COPY DIN2
(DIN2)
LEAKAGE (LEAK)
ERROR (ERR)
In case that detector is not in ABS mode and digital output is controlled by threshold values A and B, then
Example: Threshold value A is set at 0.1 AU and digital output at ABOVE A. If absorbance signal is
lower than 0.1 AU, then digital output is disconnected. If the value is higher, digital output is connected. Such
connection of output signal can be used for example for simple fraction collection.
Diagnostics of actual status of INTERFACE can be performed in Menu/Diagnostics/Interface.
For digital inputs value of OPEN (H) means opened input, high level and CLOSE (L) means closed
input, low level. Regarding digital output is displayed OFF for open switch and ON for closed
switch.

6.4.4. Analog Output

Analogue output of detector is placed on rear panel and labeled as ANALOG OUTPUT. For
connecting equipment to analogue output is intended cable from the accessories, equipped with
3 pin terminal block.
Pin Abbr. Description
1 AGND Analogue ground. Internally connected with unit chassis.
2 AOUT Analogue output signal (+).
3 AGND Analogue ground. Internally connected with unit chassis.
The cable is connected to output device (recorder, A/D converter) in a way that red
conductor labeled Hi is connected to device input, usually marked as Hi, + and black conductor
labeled Low is connected to input usually marked as Lo, -, GND. If the output device has only two
inputs, then shielded conductor is connected with black conductor, labeled Low. If the output
device has three inputs, shielded conductor is connected to input usually labeled SHIELD. If there
is different disturbing potential on both devices, disconnect shielded conductor from the detector
and connect it only on the output device.
Analogue output setting is performed in Menu/IO config/Analog output. Output range (default
value is 1 V) can be set in menu item RATIO and in item RANGE.
Description
set on OFF.
If digital input 2 is on level L, output is connected. Even if the digital input is
set on OFF.
When the leakage sensor is activated, the output is connected. But only
when the leakage
AS WARNING (Menu/Preferences/Leakage).
The output is connected in case of an error occurrence (it is not connected
in case of a warning). Terms ERROR and WARNING are explained in
chapter Chyba! Nenalezen zdroj odkazů..
digital output is always disconnected.
A
NALOGUE OUTPUT SPECIFICATION
sensor is set
24 / 47
ECD2800 / ECD2600
on AS ERROR
On cable
Low black
Hi red
Shielded conductor.
or