User Guide

98
INSTALLATION
EC 700, TDS 705
and EC 710 offer a
multitude of possibili-
ties, from single and
dual setpoints to ON/
OFF or PID dosage,
isolated outputs with
user-selectable zoom,
recorder outputs in
mAmps and volts.
Use the 3-wire Pt 100
temperature sensor to
compensate for the
cable resistance and
have a precise auto-
matic temperature
compensation of the
measurements in long
distance applications.
See the diagram for a
recommended installa-
tion.
SPECIFICATIONS
Ranges 0.0 to 199.9 µS, 0 to 1999 µS (EC 700, EC 710 only)
0.00 to 19.99 mS, 0.0 to 199.9 mS (EC 700, EC 710 only)
0.0 to 100.0 ppm, 0 to 1000 ppm (TDS 705, EC710* only)
0.00 to 10.00 ppt, 0.0 to 100.0 ppt (TDS 705, EC710* only)
-10.0 to 100.0 °C
Resolution 0.1 µS, 1 µS (EC 700, EC 710 only)
0.01 mS, 0.1 mS (EC 700, EC 710 only)
0.1 ppm, 1 ppm (TDS 705, EC710 only)
0.01 ppm, 0.1 ppm (TDS 705, EC710 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 Compensation Automatic from -10 to 100°C or manual with
Temperature Coefficient from 0.00 to 10.00%/°C
Typical EMC Deviation ±2 % full scale (EC and TDS)
±0.5 °C
Installation Category II
Probe HI 7639
4-ring EC/TDS probe (K=2) with built-in 3-wire PT100
temperature sensor and 5 mt shielded cable
Analog Input 4 - 20 mA
Power Supply 230 ±10% VAC or 115 ±10% VAC, 50/60 Hz
Power Consumption 10 VA
Over Current Protection 200 mA 250V FAST FUSE
Relays 1 and 2 • Electromechanical relay SPDT contact outputs,
5A-250 VAC, 5A - 30 VDC (resistive load)
Alarm Relay • Electromechanical Relay SPDT contact output,
5A - 250 VAC, 5A - 30 VDC (resistive load)
Environment 0-50 °C; max 95% R.H. non-condensing
Enclosure single case ½ DIN
Weight approximately 1.6 kg. (3.5 lb.)
* Note: actual TDS range for EC710 depends on TDS factor set.