Description
The BLFC638 flow counters encased in a tight, wall-mounted housing (IP 67) with 6-digit, large LED display are designed to work together with flow transducers equipped with contact or electronic inputs. The purpose of flow counters is to measure the instantaneous flow value and to record the total flow of media like liquids, gases or loose materials. A wide range of total flow indication (up to 16 digits) allows controlling the flow value for a long operation time. Thanks to the built-in batcher function the BLFC638 counters can be used in many industries like: food, pharmaceutical or paint and varnish industry. The REL / OC control outputs can be programmed depending on the instantaneous flow value, batcher or total flow value. Additionally the counter may be equipped with analogue outputs, according to the customer selection: active current output, passive isolated current output or active voltage output. The counter may be configured with no need to open the case, by using the remote controller or with free S-Config software via the RS-485 communication port.
Parameters
| Inputs | pulse, fully isolated; zeroing of batcher counter, zeroing of total counter and counting blockade: active edge or level; pulse input counting input with debouncing filter and pulse width control, max. input frequency 10.0 kHz |
|---|---|
| Power supply | 19V ÷ 50V DC; 16V ÷ 35V AC or 85 ÷ 260V AC/DC, all separated |
| Power consumption | for 19V ÷ 50V DC: max. 8,7 W; for 16V ÷ 35V AC max. 13 VA; for 85 ÷ 260V AC/DC max. 29 VA |
| Case material | ABS + polycarbonate (standard); 100% polycarbonate (on request) |
| Protection class | IP 67 |
| Display | LED, 6 x 38 mm high, red, green or blue (according to order) |
| Operating temperature | 0°C ÷ +50°C (standard), -20°C ÷ +50°C (option) |
| Measurement range | 0 ÷ 999999 + decimal point |
| Input levels | low level: 0 V ÷ 1 V; high level: 10 V ÷ 30 V (about 12 mA @ 24V) |
| Accuracy | instantaneous flow values: selected in the range 0 ÷ 0,00000; balance accuracy: selected in the range from ± 1 to ± 0,0001 |
| Binary outputs | 1, 2 or 4 relays 1A/250V AC (cos fi=1) or the OC 30mA/30VDC/100mW; transducer power supply output: 24V DC +5%, -10% / max. 100 mA, stabilized |
| Analogue outputs | (available with 2 x REL or OC, see ordering): active current: operating range 0/4-20 mA (max. 0-24 mA), load resistance 700 Ω max., resolution 13 bit passive current: isolated, operating range 4-20 mA (max. 2,8-24 mA), load resistance 600 Ω@24VDC, resolution 13 bit; active voltage: operating range 0/1-5V, 0/2-10V (max. 0-11V), load resistance min. 2000 Ω, resolution 13 bit |
| Total flow precision | selected from range: 0 ÷ 0.000 |
| Pulse waiting time | settable from 0,1 do 39,9 seconds |
| Total flow capacity | over 4 x 10^9 pulses (max. 16 significant digits) |
| Instantaneous flow unit | l or m3 per second, minute or hour |
| Instantaneous flow precision | selected from range: 0 ÷ 0.00000 |
| Total flow unit | l or m3 |
| Communication interface | RS-485 / Modbus RTU (not galvanically isolated) |
| Transmission parameters | 1200 ÷ 115200 bit/s, 8N1 and 8N2 |
| Storage temperature | -10°C ÷ +70°C; -20°C do +70°C (depending on version) |
| Data memory | non-volatile memory, EEPROM type |
| Case | wall-mounted |
| Case dimensions | 230 x 140 x 96,5 mm |
