Hach SIGMA 900, User Manual

Page: 38 / 94

Page 38
Explanations of Program Messages
8837prg.fm
Section 5
12. Press
NO
to cause other choices to appear in the display. When the
desired units appear on the display, press the
YES
key.
13. The display then shows:
ENTER LENGTH OF INTAKE TUBING,
LENGTH = _ _ _ FEET
. Enter the length of the intake tubing between the
sampler and the intake strainer (from 3 to 99 feet).
Note: If the line length is greater than 99 feet, enter
99
and use Time Calibrate to
calibrate the individual sample volume (refer to programming step 13c in
section 5.5 ).
14. Press the
YES
key to accept the length.
15. After the appropriate intake tubing length has been entered, the display
reads:
PROGRAM LOCK?
. When enabled, the program lock feature
prevents tampering with the program. Press
NO
to disable the program
lock. Press the
YES
key to enable the lock. If you enable the lock, all
program entries are completed, and the program is running, the program
cannot be halted or a new program cannot be entered until the correct
access code has been entered.
16. With the lock enabled, only certain keys are operable:
TIME READ
,
DISPLAY FEEDBACK
,
RESUME PROGRAM
,
and START PROGRAM
.
Pressing any other key causes the display to read
ACCESS CODE =
_ _ _ _
. If an incorrect code number is entered or if no entry is made within
5 seconds, the display returns to indicate the current program status.
Note: The Access Code is 9000.
17. After making the selection for the access code, the display reads: Set
Sample Cabinet Temp–Cabinet Temp=_._ _ Deg.C. Enter the desired
refrigerated compartment temperature (EPA requires 4 °C)
5.5 Explanations of Program Messages
Item
Number
Message Description of Message
1 READY TO START Indicates that a program is ready to start. To start, press the
START PROGRAM
key.
2 PROGRAM HALTED Indicates the sampling program has been interrupted.
3 PROGRAM RUNNING
Indicates that a program is in process. Keys
0
,
1
and
2
are the only active keys while a
program is running. If running, halt the program (press the
HALT PROGRAM
key) before
entering a new program.
4 PROGRAM COMPLETE
This message is displayed after program completion. To repeat the program, press the
START PROGRAM
key. Press the
NEW PROGRAM
key to enter a different program.
5
RE-ENTER PROGRAM,
DEPRESS *
When the sampler is on, this message will appear if the sampler was turned off during
program entry.
6 PROGRAM DELAY
This is the first message in the programming sequence. If selected, the sampler will
start only after the delay period elapses. A
YES
response causes message 6a to
appear on the display.
6a 10:35 AM 24OCT00
A time and date are displayed when the
YES
key is pressed in response to message 6.
The example to the left signifies 10:35 in the morning, on October 24, 2000.