Hanna Instruments HI 720 Series - Manual (Page 10)

18 19
Setup Item Description Valid Values Default
Setpoint 2
C.24
Setpoint 2 reset time 0.1 to 999.9 minutes 999.9 min.
C.25 Setpoint 2 rate time 0.0 to 999.9 minutes 0.0 min.
Alarms
C.30
Low alarm value 0 to f.s 100 μS/cm
(LA) (see note 18) (see note 1)
C.31 High alarm value 0 to f.s 1900 μS/cm
(HA) (see note 18) (see note 1)
C.32 Max relay ON time 1 to 60 minutes 60 min.
(then an alarm is generated)
C.33 Alarm mask time 00:00 to 30:00 min. 00:30
(see notes 18, 27)
C.34 Alarm hysteresis 0 to f.s. 20 μS/cm
(AH) (see note 18)
Programmable Control
C.41
Hold time start (note 6) 00:00 to 23:59 00:00
C.42 Hold time stop (note 6) 00:00 to 23:59 00:00
C.51 Monday hold mode Off: disabled, Off
On: enabled
C.52 Tuesday hold mode Off: disabled, Off
On: enabled
C.53 Wednesday hold Off: disabled, Off
mode On: enabled
C.54 Thursday hold Off: disabled, Off
mode On: enabled
C.55 Friday hold mode Off: disabled, Off
On: enabled
C.56 Saturday hold mode Off: disabled, Off
On: enabled
C.57 Sunday hold mode Off: disabled, Off
On: enabled
Other Parameters
C.60
Proportional control 01:00 to 30:00 min. 05:00 min.
period (if available)
Setup Item Description Valid Values Default
Curve 1/2/3/4 Table (see note 34)
d.03
Not compensated 0 to f.s. 0 μS/cm
conductivity value for
the triplet selected in d.02
d.04 Temperature value for -30.0 to 130.0°C 0.0°C
the d.02 triplet
d..05 Concentration value 0 to f.s 0 ppm
for the d.02 triplet
CONTROL
C.00
Control enable On, Off Off
Setpoint 1
C.10
Setpoint 1 mode Disabled, On/Off low
(M1) On/Off high,
(see note 1) On/Off low,
PID high (if available),
PID low (if available)
C.11 Setpoint 1 value 0 to f.s. 500 μS/cm
(S1) (see note 1)
C.12 Setpoint 1 0 to f.s. 20 μS/cm
hysteresis (H1) (see note 1)
C.13 Setpoint 1 Up to f.s and ≠0 20 μS/cm
deviation (D1) (see note 1)
C.14 Setpoint 1 reset time 0.1 to 999.9 minutes 999.9 min.
C.15 Setpoint 1 rate time 0.0 to 999.9 minutes 0.0 min.
Setpoint 2
C.20
Setpoint 2 mode Disabled, On/Off low
(M2) On/Off high,
(see note 1) On/off low,
PID high (if available),
PID low (if available)
C.21 Setpoint 2 value 0 to f.s. 1500 μS/cm
(S2) (see note 1)
C.22 Setpoint 2 0 to f.s. 20 μS/cm
hysteresis (H2) (see note 1)
C.23 Setpoint 2 Up to f.s and ≠0 20 μS/cm
deviation (D2) (see note 1)