Hanna Instruments HI 9931 - Manual (Page 8)

8
SETPOINT RANGE From 0 to 10.00 mS/cm
Specifications HI 9931
RANGE 0.00 to 10.00 mS/cm (EC)
RESOLUTION 0.01 mS/cm
ACCURACY ±2% F. S.
(@20 C/68 F)
TYPICAL EMC
±2% F. S.
DEVIATION
PROPORTIONAL Conductivity from 0.0 to 1.6 mS/cm and
CONTROL time cycle from 0 to 90 seconds
ALARM
CONTACTS
DOSING TERMINALS
PROBE (optional) 4-ring potentiometric with built-in temperature sensor
POWER SUPPLY 220/240V or110/115V at 50/60Hz
ENVIRONMENT -10 to 50°C (14 to 122°F)
max. 95% RH non-condensing
WEIGHT 1.6 Kg (3.5 lb.)
ENCLOSURE 181 x 221 x 142mm (7.1 x 8.7 x 5.6")
CASE MATERIAL Fiber-reinforced, self-extinguishing ABS
Terminal can be configured as normally open or
normally closed (isolated output Max. 2A, Max. 240V,
resistive load, 1,000,000 strokes). The alarm is
activated if conductivity exceeds by more than the user-
selectable interval (0 to 2.0 mS/cm) from the setpoint
or due to overdosage
Relay (115 to 240V, Max.2A,1,000,000 strokes) is
activated whenever conductivity falls below the setpoint
CALIBRATION Through "ZERO CAL" and "SLOPE CAL" trimmers