Hanna Instruments HI 5000 - Manual (Page 6)

6
FUNCTIONAL DIAGRAM HI 9913 FUNCTIONAL DIAGRAM HI 9913 FUNCTIONAL DIAGRAM HI 9913 FUNCTIONAL DIAGRAM HI 9913 FUNCTIONAL DIAGRAM HI 9913
pH
0
1
2
0
1
2
mS
ALARM
pH
0
SECONDS mS
2.0 0
TIMER MINUTES
90
PROPORTIONAL SETTINGS
4 7
0
SECONDS pH
2.0 0
TIMER MINUTES
90
PROPORTIONAL SETTINGS
1 4
SLOPE CAL
ALARM
ON
OFF
0.5 1.5
SET
FERT
mS
OFFSET SLOPE ALARM
ON
OFF
0.5 1.5
SET
ACID
ALARM
HI 9913
1 10
2.5
5
7.5
1 10
2.5
5
7.5
ALARM
pH
5 6
EC
mS
FEED
FEED
2 3
SET pH
SET EC
ALARM
LINE
ACID
ALK
1
3
4
5
6
7
8
9
10
11
13
17
18
19
20
21
23
2
2
9 25
12
14
16
22
24
ZERO CAL
FRONT PANEL
Left panel
1. Alarm LED signal for pH
2. Liquid Crystal Display for pH and Conductivity (EC)
3. Acid feed LED and dial to adjust the pH setpoint
4. Selection switch for Acid or Alkaline dosage
5. Alarm disable switch for pH
6. Slope calibration trimmer for pH
7. Offset calibration trimmer for pH
8. Proportional pH band and time cycle settings
9. Two independent overdosage timers
10. Alarm LED signal for Conductivity (EC)
11. Fertilizer feed LED and dial to adjust the Conductivity setpoint
12. Zero calibration trimmer for Conductivity (EC)
13. Slope calibration trimmer for Conductivity (EC)
14. Proportional Conductivity band and time cycle settings
16. Alarm disable switch for Conductivity (EC)
Right panel
17. pH alarm setting from 0.0 to 2.0 pH
18. Short the terminals if a pH ground probe is not in use, or
connect the ground probe wire to the Matching Pin terminal
19. Conductivity alarm setting from 0 to 2.0 mS/cm (EC)