Hanna Instruments HI 23 Series Instruction Manual page 19

Code
71 Baud rate
72 Cleaning timer
73 Initial cleaning day
74 Initial cleaning month
75 Initial cleaning year
76 Initial cleaning time
77 Cleaning ON interval
90 Display selftest
1: on
91 Keyboard selftest
1: on
92 EEPROM selftest
1: on
93 Relays and LEDs selftest
1: on
94 Watchdog selftest
1: on
99 Unlock password
Note
The process controller automatically checks to ensure that
the entered data matches other related variables. If a wrong
configuration is entered, "ERROR" blinks on the LCD to
prompt the user. The correct configurations are the follow-
ing:
If M1= / 0 then S1 HA, S1 LA;
If M2= / 0 then S2 HA, S2 LA;
If M1= 1 then S1-H1 LA;
If M1= 2 then S1+H1 HA;
If M1= 3 then S1+D1 HA;
If M1= 4 then S1-D1 LA;
Valid Values Default
1200, 2400, 4800, 9600 4800
0 to 19999 days 0
01 to 31 01
01 to 12 01
1998 to 9999 1998
00:00 to 23:59 00:00
0 to 19999 minutes 0
0: off 0
0: off 0
0: off 0
0: off 0
0: off 0
0000 to 9999 0000
PW
yes
no
no
no
no
no
no
yes
yes
yes
yes
yes
yes
19