21
20
This line makes the computer send a Data Link Escape character, the com-
mand expressed as a number or a 3-character sequence and a CR character.
Note
:
All terminal programs that support the ANSI escape sequence, represent
the DLE character by the string ‘^P’ and the CR character by the string
‘^M’. E.g. the line ‘^PPPM^M’ sets the range to ppm.
Commands not requiring an answer from the meter:
PPM
sets the range to ppm D.O.
PER
sets the range to % D.O.
Note:
If not in measurement, calibration or LOG mode, “Err 8” is sent.
Commands requiring an answer:
DO?
Causes the meter to send the D.O. (% or ppm will depend on the
meter setting). If the reading is out of range, “Err 1” is sent.
TM?
Causes the meter to send the temperature value. If the reading
is out of range, “Err 3” is sent.
Note:
If not in measurement, calibration or LOG mode, “Err 8” is sent.
DA?
Requests the meter to send the date.
E.g. “022896” for 28th Feb. 96
TI?
Requests the meter to send the time.
E.g.
“233001” for 23:30 hr, 1 sec. as interval
“233002” for 23:30 hr, 15 sec. as interval
“233003” for 23:30 hr, 30 sec. as interval
“233004” for 23:30 hr, 1 min. as interval
“233005” for 23:30 hr, 5 min. as interval
“233006” for 23:30 hr, 30 min. as interval
“233007” for 23:30 hr, 60 min. as interval
“233008” for 23:30 hr, 120 min. as interval
“233009” for 23:30 hr, 180 min. as interval
?ML
Requests the meter to send the available lot number collected in
memory. The transmission begins with <STX> and terminates
with <ETX>. The data are sent in the following order:
1) stx
2) Lot number
E.g. “01” for lot No. 1
3) Total number of samples per lot
E.g. “1234” for total no. of samples: 1234.
