Menu
PHC20 is a reliable conductivity transmitter, enclosed in a small housing for DIN-rail mounting or in box mounting, especially designed for clear, industrial, and sea water applications. It is compatible with COMECO’s conductivity probes series CSK as well as other 2-electrode contacting conductivity cells within conductance range from 0.1 µS to 100 mS/cm, and has an additional Pt100, Pt1000 or NTC 1k input for automatic temperature compensation. The transmitter provides linear current or voltage output and can also be equipped with a relay alarm/control output. All device parameters (preset conductance ranges, analog output range and direction, relay set point, hysteresis, and direction, temperature compensation parameters, etc.) are user-programmable via the RS232 interface.. Thanks to its wide measurement range, flexibility, programmability, and reliability, the PHC20 transmitter is very suitable for water treatment and processing applications in the food, pharmaceutical, and many other industries.
| Захранване | 10…30 VDC |
|---|---|
| Аналогов вход | 2-electrode contacting cell, RTD NTC 1k, RTD Pt100 – 1.385, RTD Pt100 – 1.391, RTD Pt1000 – 1.385 |
| Аналогов изход | 0…10 V, 0…20 mA, 2…10 V, 4…20 mA, Programmable |
| Релеен изход | MOS gate, None, Other |
| Монтаж | DIN rail, Free |
| Корпус | 23x90x58 mm, 80x80x60 mm |
| Интерфейс | RS232 |
| Input | |
| Input type | 2-electrode contacting cell |
| Measurement range | 0.1 μS to 100 mS |
| Selectable ranges | 0.008 …25 mS/cm |
| Temperature input | Pt100, Pt1000, NTC 1k |
| Temperature compensation | 0.0…10.0 %/°C, selectable TDS |
| Accuracy | |
| Total measurement error | ± 2% from span (incl. non-linearity) |
| Temperature drift | 0.06% from span for 1 °C |
| Analog output | |
| Output signal | 0(4)…20 mA, 0(2)…10 V, reversible |
| Resolution | 0,025% |
| Current load | max. 750 Ω at 20 mA |
| Voltage load | max. 2 kΩ at 10 V |
| Isolation from input | 1500 VAC for 1 min |
| Relay output | |
| MOS gate | 0.1A/60V, optically isolated |
| Output function | ON/OFF, alarms |
| Set point | configurable via interface |
| Isolation from input | 1500 VAC for 1 min |
| Interface | |
| Interface type | RS232 (TTL), requiring special cable(1) |
| Interface cable type (1) | K2, K2U, K12U |
| Power supply | |
| Supply voltage | 10…30 VDC |
| Consumption | max. 60 mA |
| Isolation from input | 1500 VAC for 1 min |
| Operating conditions | |
| Ambient temperature | -10…65 °C |
| Operating humidity | 0…85 %RH, non-condensing |
| Storage temperature | -20…85 °C |
| Design and materials | ‘C’ | ‘Y’ |
| Case material | plastic | plastic |
| Mounting | on DIN rail | free mounting |
| Wiring | screw terminals | screw terminals |
| Dimensions | 23x90x58 mm | 80x80x60 mm |
| Weight | max.100 g | max.200 g |
| Protection class | IP20 | IP65 |
(1) Ordered separately (see ‘Accessories’)
