Hanna Instruments HI 21 Series - Manual (Page 8)

15 14
Code Valid Values Default PW
60 Current day 01 to 31 from RTC no
61 Current month 01 to 12 from RTC no
62 Current year 1997 to 9999 from RTC no
63 Current time 00:00 to 23:59 from RTC no
71 Baud rate 1200, 2400, 4800, 9600 9600 (RS485) no
90 Display selftest 0: off 0 yes
1: on
91 Keyboard selftest 0: off 0 yes
1: on
92 EEPROM selftest 0: off 0 yes
1: on
93 Relays and LEDs selftest 0: off 0 yes
1: on
94 Watchdog selftest 0: off 0 yes
1: on
99 Unlock password 0000 to 9999 0000 yes
Note The process controller automatically checks to ensure that
the entered data matches other related variables. If a wrong
configuration is entered, “WRONG” blinks on the LCD to
prompt the user. The correct configurations are the following:
If M1=
/ 0 then S1LA;
If M2= / 0 then S2LA;
For models other than HI 21523:
If M1= 1 then S1-H1>LA;
If M1= 2 then S1+H1If M1= 3 then S1+D1If M1= 4 then S1-D1>LA;
If M2= 1 then S2-H2>LA;
If M2= 2 then S2+H2If M2= 3 then S2+D2If M2= 4 then S2-D2>LA;
If M1= 1 and M2 = 2
then S1-H1>S2+H2, S2>LA, HA>S1;
If M1 = 2 and M2 = 1
then S2-H2>S1+H1, S1>LA, HA>S2;
If M1 = 3 and M2 = 2
then S1>S2+H2, S2>LA, HA>S1+D1;
Code Valid Values Default PW
23* Relay 2 hysteresis (H2) 0.00 to 14.00 pH 1 pH no
0 to 4000 mV 50 mV
24* Relay 2 deviation (D2) 0.50 to 14.00 pH 1 pH no
25 to 4000 mV 50 mV
25* Relay 2 reset time 0.1 to 999.9 minutes 999.9 mins no
(HI 21523 only)
26* Relay 2 rate time 0.0 to 999.9 minutes 0.0 mins no
(HI 21523 only)
30 Relay 3 high alarm (HA) 0.00 to 14.00 pH 9.00 pH no
-2000 to 2000 mV 600 mV
HA>LA, HA>S1 or HA>S2
31 Relay 3 low alarm (LA) 0.00 to 14.00 pH 5.00 pH no
-2000 to 2000 mV -600 mV
LA
32 Proportional control 1 to 30 min ( not for HI 21523 ) 5 min no
mode period 5 s to 30 min ( HI 21523 only ) 30 s no
33 Maximum relay ON time 1 to 60 min ( HI 21523 only ) 60 no
10 to 999 min ( not for HI 21523 ) 60 no
(after which an alarm mode is entered)
34 Alarm mask time 00:00 to 30:00 00:00 no
(HI 21523 only)
40 Analog output selection 0: 0-1mA 2 no
1: 0-20 mA
2: 4-20 mA
3: 0-5 VDC
4: 1-5 VDC
5: 0-10 VDC
Note: this parameter refer to internal hardware configuration of the instrument. To
change it from the factory setting, see page 26.
41 Analog output 0.00 to 13.00 pH 0.00 pH no
lower limit -2000 to 2000 mV -2000 mV
(O_VARMIN) (O_VARMIN < O_VARMAX-(1.00pH or 50mV))
42 Analog output 1.00 to 14.00 pH 14.00 pH no
upper limit -2000 to 2000 mV 2000 mV
(O_VARMAX) (O_VARMIN < O_VARMAX- (1.00pH or 50mV))