Overview
The CFI 300 series instruments are extremely rugged and versatile flow indicators with 4-20mA or 0-5V input. These indicators can be used for open channel flow measurement. These instruments can be factory set for measuring 4-20mA currents or 0-5VDC or 0-10VDC. The 4-20mA models have a drop of 2.4 volts maximum. In addition, all these instruments are field programmable and have nonvolatile backup memory that does not need cumbersome batteries. These instruments also have the capability to switch on relay(s) based on user settings. These outputs can be used for process set points and alarms. There is a advanced power fail feature by which even if there is any power failure the Total Flow reading is automatically saved to memory and resumes with the same value after Power On. These instruments can be connected to a PC via RS485/ RS 232 using MODBUS interface
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Rate of Flow, Total Flow |
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Microcontroller signal processing |
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16 Chr. 2 Line Backlit LCD Display |
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Field Programmable through four keys |
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Compact Size |
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+-1 % of full scale Accuracy |
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4-20mA or 0-5VDC or 0-10VDC Input |
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Low Power consumption |
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RS232/RS485 - MODBUS Communication |
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Panel Mount |
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| Power supply | : | 220 VAC ± 10 %, 12 – 24 VDC (Factory settable only) |
| Power | : | 2 Watt maximum |
| Indication | : | 16 Character 2 line LCD displays |
| No of Channels: | : | 1 |
| Signal Type | : | 4-20mA, 0-5VDC, 0-10VDC (Factory settable only) |
| Signal Maximum | : | Protected for 40mA continuous (4-20mA models) 20V DC (0-5 or 0-10VDC models) |
| Output Power | : | 12V DC UnRegulated at 250 mA maximum (no fuse provided) |
| Zero and Span | : | -19999 to 19999 |
| Conversion Type | : | Linear, Square root |
| Operating Temperature | : | 0 – 50 °C |
| Storage Temperature | : | 0 – 60 °C |
| Humidity | : | 0 – 80 non condensing |
| Accuracy | : | ± 1 Count over a conversion range of 0 – 8192 counts |
| Relay | : | Optional |
| Program Variables | : | Saved in non-volatile EEPROM. No battery backup necessary. Data retention 100 years maximum |
| Programming Method | : | From keypad provided in the instrument |
| Housing | : | Panel mount 96 x 96 mm |