Hanna Instruments HI 23 - Manual (Page 6)

11 10
INSTALLATION
HI 23 and HI 24 series offer a multitude of possibilities,
from dual setpoints to ON/OFF or PID dosage, isolated out-
puts with user-selectable zoom, recorder outputs in mA and
volts.
Use the 3-wire Pt 100 temperature sensor to compensate for
the cable resistance and have a precise automatic tempera-
ture compensation of the measurements in long distance
applications.
See the below diagram for a recommended installation.
Note All external cables to be connected to the right panel should
end with cable lugs.
Use wires with cable lugs when connecting to the strip con-
tacts.
Always disconnect the power cord when wiring the controller.
CONDUCTIVITY
PROBE
* Note: actual TDS range for HI 24 series depends on TDS factor set.
SPECIFICATIONS
Range 0.0 to 199.9 µS/cm, 0 to 1999 µS/cm
0.00 to 19.99 mS/cm, 0.0 to 199.9 mS/cm
0.0 to 100.0 ppm, 0 to 1000 ppm (HI 24 series only)*
0.00 to 10.00 ppt, 0.0 to 100.0 ppt (HI 24 series only)*
-10.0 to 100.0 °C
Resolution 0.1 µS/cm, 1 µS/cm, 0.01 mS/cm, 0.1 mS/cm
0.1 ppm, 1 ppm, 0.01 ppt, 0.1 ppt (HI 24 series only)
0.1 °C
Accuracy ±0.5 % full scale (EC and TDS)
(@20°C/68°F) ±0.5°C between 0 to 70°C, ±1°C outside
Temperature Automatic or manual, -10 to 100°C
Compensation with β adjustable from 0.00 to 10.00%/°C
Typical EMC Deviation ±2 % full scale (EC and TDS) / ±0.5 °C
Installation Category II
Probe 4-ring conductivity probe with built-in 3-wire Pt100
temperature sensor or conductivity probe + external Pt100
(see “Accessories” section)
Analog Input 4 - 20 mA
Analog Output 0-10 Vdc, 0-5 Vdc or 1-5 Vdc; 0-1mA, 0-20 mA or 4-20mA
RS485 baud rate 1200, 2400, 4800 and 9600
Power Supply 230 ±10% VAC or 115 ±10% VAC, 50/60 Hz
Power Consumption 15 VA
Over Current Protection 400 mA 250 V fast fuse
Relays 1, 2 and Contact outputs SPDT, 5A-250 VAC, 5A-30 VDC (resistive load)
Alarm Relay Fuse protected: 5A, 250V fuse
Environment 0-50 °C; RH max 85% non-condensing
Case Material Fiber-reinforced, self-extinguishing ABS
Protection IP 54
Dimensions 221 x 181 x 86 mm (8.7 x 7.1 x 3.4”)
Weight 1.6 kg (3.5 lb.)