Hanna Instruments ph 300 ユーザーズマニュアル

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Commands not requiring an answer from
the pH meter:
PHR sets the range to pH
MVR sets the range to mV
CAL is equivalent to pressing the CAL key
CFM is equivalent to pressing the CFM key
PRT is equivalent to pressing the PRINT key
PGM is equivalent to pressing the PGM key
CLR is equivalent to pressing the CLEAR key
OFF is equivalent to pressing the OFF key

Commands requiring an answer:
pH? Causes the meter to send the pH value.

If the reading is out of range "Err 1" is
sent.

MV? Causes the meter to send the mV value.

If the reading is out of range "Err 2" is
sent.

TM? Causes the meter to send the tempera-

ture value. If the reading is out of range
"Err 3" is sent.

The meter will send "Err6" if in a different
measurement range.

FA? Requests the meter to send the calibra-

tion factor of pH. The order of data is
as follows:

1) Month, day and Year

(when the calibration was done)
E.g. "123195" for 31st of Dec. 95

2) Buffer used when the offset was done

E.g. "0701" for 7.01 pH

3) Offset in mV

E.g. "_00504" for 50.4 mV

"-00504" for 50.4 mV

4) Buffer used when slope was done

E.g. "0401" for 4.01 pH

5) Slope in mV

E.g. "000592" for 59.2 mV

6) Temperature

E.g. "_01199" for 119.9°C

"-00099" for -9.9°C

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

BAR Requests the meter to send the RS232

baud rate

PRE Requests the meter to send the RS232

command prefix

Commands setting parameters:
/BR To set the RS232 baud rate.   E.g.

send "/BR0" to set the meter to baud rate of
150
send "/BR1" to set the meter to baud rate of
300
send "/BR2" to set the meter to baud rate of
600
send "/BR3" to set the meter to baud rate of
1200
send "/BR4" to set the meter to baud rate of
2400
send "/BR5" to set the meter to baud rate of
4800
send "/BR6" to set the meter to baud rate of
9600

/PF To set the RS232 command prefix. E.g.

send "/PF05" to set the command prefix to
05.