Hach-Lange BUHLER 2000 Water sampler - Manual (Page 25)

Operation
Page 25 Manual BÜHLER 2000/1029
2. Programming of a „FLOW-DEPENDENT“ sampling program
If this sampling mode is selected, the sampler has to be connected to a flow meter which either
supplies an analogue signal (0/4 - 20mA) or a digital pulse.
The sample extraction is carried out according to this „flow signal“.
The programming of each of the three modes (0 -20 / 4 - 20 / digital) is very similar. Only single
menus are different (depending on the selected settings). The programming of these menus is
depending on the context and thus results from it accordingly.
The following example shows the programming of:
- Flow analogue 0 - 20mA /time-related bottle filling / max. number of samples per bottle limited.
1.1.4
**************************
PROGRAM NO. 2
TIME
INTERVAL HRS. 0:06
FILLING TIME H 2:00
**************************
Selection of the program number:
After having pressed the ENT key, a program number (1 to 6) can
be entered.
Confirm by pressing the ENT key.
Next menu: press the „DOWN“ arrow key.
1.1.5
**********************
PROGRAM NO. 2
*CHANGE
DELAYED START
START
**********************
PROGRAMMING
- Press the ENT key (cursor is displayed flashing)
- Press the „UP“ arrow key twice
- Confirm with ENT
2.2.1
**********************
PASSWORD
****
**********************
Enter the valid password (factory-set code is 6299).
Remark:
This is only required if a password has been activated in „Setup“->
„System settings“. If not, just press the ENT key and you will get
to the next menu!
If the right password has been entered, you will automatically get
to the next menu.
3.4.1
**********************
MODE
EVENT
TIME
*FLOW 0-20 mA
**********************
The selected sampling mode is marked with a star.
If the sampling mode shall be changed, press the ENT key and
move the cursor on the sampling mode FLOW to create a flow-
dependent sampling program.
Confirm the input by pressing the ENT key.
4.10.1
**********************
SAMPLES PER HOUR
AT 20 mA
40
**********************
If „ANALOGUE“ (0/4-20mA) has been selected, enter here how
often samples shall be extracted at a maximum analogue flow
signal.
Example:
- Flow analogue 0-20 mA
- At 20 mA 40 samples/hour shall be extracted.
- If there are on an average 10 mA for a period of
1 hour, 20 samples will be extracted.