Protos II is new modular premium transmitter for all requirements. Versatile Expandable Ensuring Process Safety Protos II 4400 (X) premium transmitter is a flexible, 4-wire device for the following process variables: pH, ORP, conductivity and oxygen.
Protos II is new modular premium transmitter for all requirements.
Protos II 4400 (X) premium transmitter is a flexible, 4-wire device for the following process variables: pH, ORP, conductivity and oxygen. For monitoring and controlling processes even in the most complex applications — also in hazardous areas. With modular hardware and firmware concept.
The smart diagnostic functions that Protos II provides for analyzing sensor life cycles mean a significant increase in sensor service life and availability.
| Brand: | Protos II |
| Category: | Measurement and control / Measurement of liquids / Transmitters |
| Display | Graphic LC display, white backlight, resolution 240 × 160 pixels |
| Keypad | NAMUR |
| Device self-test | Test of RAM, FLASH, EEPROM, display and keypad |
| Clock | Real-time clock with date |
| Module slots | 3 |
| Explosion protection | Ex Certificates and EU Declaration of Conformity |
| Power supply | 100 to 230 V AX,15 VA, 48 to 62 Hz, or AC: 24 V < 15 VA, 48 to 62 Hz, DC: 24 V < 8 W |
| Protection against electric shock | Protective conductor terminal acc. to EN 61010–1 |
| Current output | 2× 0/7 to 20 (22) mA, max. 10 V, galvanic isolation up to 60 V |
| Relay contacts | 4 relay contacts K1 … K4, floating, galvanic isolation up to 60 V |
| RoHS conformity | According to EU directive 2011/65/EU |
| Operating temperatue | –20 to 50 °C |
| Relative humidity | 10 to 95% RH |
| Protection | IP65 |
| Weight | Approx. 3.9 kg (depends on modules installed |