Hanna Instruments hi 2400 User Manual
5
FUNCTIONAL DESCRIPTION OF HI
2400
Front Panel
1. Liquid Crystal Display
2. Keyboard:
2. Keyboard:
CAL keyto enter or exit the calibration mode; to enter or exit setup
(change setting); to start or exit the D.O. logging mode
CFM key to confirm the calibration values and the set values
UP key to select the calibration value; to change menus in setup (view
settings) and to increase the setting values in setup (change setting)
DOWN key to select the calibration value; to change menus in setup (view
settings) and to decrease the setting values in setup (change setting)
LOG key to display the lot number on the primary LCD and the page
number on the secondary one
SETUP key to enter/exit the setup (view settings)
ON/OFF switch to turn the meter on or off
RANGE key to select dissolved oxygen measurement mode in ppm or in %.
(change setting); to start or exit the D.O. logging mode
CFM key to confirm the calibration values and the set values
UP key to select the calibration value; to change menus in setup (view
settings) and to increase the setting values in setup (change setting)
DOWN key to select the calibration value; to change menus in setup (view
settings) and to decrease the setting values in setup (change setting)
LOG key to display the lot number on the primary LCD and the page
number on the secondary one
SETUP key to enter/exit the setup (view settings)
ON/OFF switch to turn the meter on or off
RANGE key to select dissolved oxygen measurement mode in ppm or in %.
36
sample no. 1
—— send ppm data if ppm is log selected
—— send % data if % is log selected
—— send temperature data if temperature is log selected
sample no. 2 ...
until the last sample
sample “XXX” is signed hex format.
15) last sample time, min. E.g. “59” for 59 minute
16) last sample time, hour. E.g. “12” for 12 hour
17) last sample time, day. E.g. “09” for 9th day
18) last sample time, month. E.g. “09” for September
19) last sample time, year. E.g. “96” for year 1996
20) etx end
—— send ppm data if ppm is log selected
—— send % data if % is log selected
—— send temperature data if temperature is log selected
sample no. 2 ...
until the last sample
sample “XXX” is signed hex format.
15) last sample time, min. E.g. “59” for 59 minute
16) last sample time, hour. E.g. “12” for 12 hour
17) last sample time, day. E.g. “09” for 9th day
18) last sample time, month. E.g. “09” for September
19) last sample time, year. E.g. “96” for year 1996
20) etx end
The meter will send “Err6” if in a different measurement range.
Commands setting parameters:
/ML
To select the data lot for data transfer.
E.g.
E.g.
send “/ML05” to select lot no. 5.
If the lot no. is valid, the meter will send <ACK>, otherwise it
will send <CAN>.
/BR
/BR
To set the RS232C baud rate.
E.g.
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 RS232C command prefix.
E.g.
E.g.
send “/PF05” to set the command prefix to 05.
Note: <ACK> will be sent by the meter if the command received is ac-
cepted, otherwise it will send <CAN>.
<ACK> equals to ASCII code 06 and <CAN> equals to
ASCII code 24.
If sample data is out of range “07FFFH” is sent.
These commands may be sent with either capital or small letters. Invalid
commands will be ignored. The characters sent by the pH meter are always
capital letters.
commands will be ignored. The characters sent by the pH meter are always
capital letters.