Hold Mode - Hanna Instruments HI 720 Instruction Manual

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