C 7687 Conductivity, Resistivity and TDS controller
The controller can be configured to measure conductivity and/or TDS or other indirect scales during the installation, it's also possible the visualization of resistivity.
It provides manual and automatic temperature compensation, if an RTD Pt100 or an RTD Pt1000 is connected.
When the RTD is connected, the instruments provides the temperature reading.
FeaturesTechnical Data
The instrument provides:
– measuring display in the range stated by the installed sensor;
– automatic measurement control function
– alarm from the min/max values of the measures, the excessive activation of relays and the presence of the logic inputs;
– programmable dual analog output for recording and acquisition of the measurement values or PID regulation;
– hold / alarm function activated by two external volt free contacts;
– automatic /manual autoclean function.
| Inputs: | 2 electrodes cells 4 electrodes cells (option) Pt100 o Pt1000 |
| Zero: | ± 10 %, ±5°C, ±9°F |
| Sensitivity: | 60 ÷ 160 % |
| Resolution: | 1/2000, 0.1 °C/°F |
| Accuracy: | 0.2 % |
| Repeatability: | 0.1 % |
| Non-linearity: | 0.1 % |
| Dual filter software: | 0.4 ÷ 50.0 seconds for small and large variations |
| Dual analog output: | 0-20 mA / 4-20 mA Rmax 600 Ω |
| Dual set points HI/LO: | ON/OFF – PID – PFM – PWM, SPST relays |
| Hysteresis: | 0 ÷ 1 % |
| Delay: | 0 ÷ 999.9 seconds |
| Alarm: | SPDT relay with delay 0 ÷ 100.0 seconds |
| Cleaning function: | off / autoclean / manual, relay SPDT repetition time 0.1 ÷ 100.0 hours cleaning time 1.0 ÷ 60.0 seconds holding time 0.0 ÷20.0 minutes |
| SPST and SPDT relay contacts: | 220V – 5 A resistive load |
| Operating temperature: | -10 ÷ 60 °C |
| Humidity: | 95% without condensation |
| Power supply: | 85 ÷ 264Vac – 50/60 Hz 9 ÷ 36Vdc, 12 ÷ 24Vac (option 091.42x) |
| Terminal blocks: | removable |
| Weight: | 1360 g (C 6587) 450 g (C 7687) |
| Enclosure: | ABS, IP 65 protection (C 6587) Metallic, IP 65 front panel only (C 7687) |
| Dimensions: | 256x230x89 mm (C 6587) 98x98x104 mm, 90x90x95 mm panel cutout (C 7687) |
| EMC/RFI conformity: | EN 61326 |
| Registered design: | 002564666-002 (C 6587) 002564666-003 (C 7687) |
