Flow computers
BC-3N
Batch-controller in wall-mounted case. Allows metering of the specified quantity of media by working with the flow meter and valve / valves control via 4-20mA relay or analog outputs.
Batch-controller
• Up to 3 batch systems
• One or two-step batching mode
• 5 measurement inputs
• 4 semiconducting output relays rated at 01.A / 60V
• 1 or 2 4-20mA analog outputs (optional)
• Valves can be controlled by relay outputs or by 4-20mA analog output
• 2 totalizers for each inputs or batcher
• Results recorded in internal 2GB memory. Local access to stored data through USB port on face plate
• RS-485 communication port, Modbus RTU protocol
• Ethernet communication port; Modbus TCP protocol, WWW server
• 19-buttons extended keyboard version (makes it easier to enter and edit numbers, text, formulas and passwords
Inputs
The device has five measurement inputs
• 2 x I, two inputs adapted for connection of transducers with a 0/4-20mA current output
• 3 x I/PULS, three inputs intended for connection of transducers with a 0/4-20mA current outputs or with a pulse output (range 0.0001Hz … 10kHz)
Flow measurement
The device cooperate with flowmeters (e.g. ultrasonic, electromagnetic, vortex) with
• 0/4-20mA outputs signal proportional to flow
• impulse output with constant pulse value
• frequency output proportional to flow
Batch features
The batching can by
• One step
• Two steps, to reduce batch overrun, flow rate is limited at the end of batching process
Two outputs relays provide control for dual stage batch. At the start of the bath valves (main and precise one) are open, at the end only the precise one.
If the analog outputs are used for control the valves the two steps of batch are executed by various values of current. BC-3(N) batcher contain “learn algorithm”: the device “learn” the amount of batch overrun and then seek to turn the batch off “early” by the average amount of the batch overrun. This feature may be enabled or disabled.
Totalizers
• Two totalizers for each inputs and each of three batchers (A, B, C).
Alarms
The alarm situations signalized by the device
• Batch overrun: the amount of fluid is greater than the set point which was entered or the flow didn’t stop after a set time
• There in no flow after a specified period of time after opening the valve
• Flow started although there is no bathing
Application
BC-3 and BC-3N batch-controllers are used in many industries, in power plants and CHPs, in the metallurgical, food, chemical, wood and paper industries, etc. Examples include: dosing chemicals for manufacturing processes such as paper production.
This product is CE marked.
Declarations of Conformity are available on request.
| User interface, front panel | |
| Display type | LCD TFT color, 272 x 480 pixels |
| Readout field size | 43.8 mm x 77.4 mm |
| LED indication | 3 two-color LEDs, red-orange-green |
| Keyboard | 19 membrane buttons |
| Inputs organization | |
| 2 x I: | IN1, IN2 |
| 3 x I / PULSE: | IN3, IN4, IN5 |
| 0/4-20mA type analog inputs | |
| Signal type | 0-20mA or 4-20mA |
| Transmitter connection | Passive transmitter (supplied from measuring loop) or active converter |
| Input resistance | 100 W ±10% |
| Transmitters supply | 24 V DC / max 22 mA |
| A/D converter resolution | 18 bits |
| Accuracy (Ta = 20 °C) | ±0,1% of the range (typical ±0,05% of the range) |
| Temperature drift | Max ±50 ppm / °C |
| Galvanic isolation between inputs | No, common potential GND for all inputs |
| Galvanic isolation to supply voltage | 400 VAC |
| Signal type | 0-20mA or 4-20mA |
| PULSE type inputs (pulse/frequency) | |
| Maximum input voltage | ±28 VDC |
| Galvanic isolation between inputs | No, common potential GND for all inputs |
| Galvanic isolation to supply voltage | 400 VAC |
| Functions | Pulse counting
Frequency measurement |
| Measuring range | 0,001 Hz to 10 kHz
(0,001 Hz to 1 kHz with connected filtering capacitor) |
| Minimum pulse width | 20 ms
0.5 ms, with filtrating capacitor |
| Accuracy (Ta = 20 °C) | 0,02% |
| Configuration: OC / contact (default) | |
| Voltage(OC) | 12 V |
| Current (contact) | 12 mA |
| On / off threshold | 2,7 V / 2,4 V |
| Configuration: input voltage | |
| Input resistance | >10 kW |
| On / off threshold | 2,7 V / 2,4 V |
| Voltage (open) | 12 V |
| NAMUR configuration | |
| High impedance state | 0,4 mA – 1 mA |
| Low impedance state | 2,2 mA – 6,5 mA |
| 4-20 mA analog outputs (optional) | |
| Number of outputs | No, 1 or 2 |
| Output signal | 4-20mA |
| Maximum voltage between I+ and I- | 28 VDC |
| Loop resistance (for Ucc = 24 V) | 0 .. 500 Ω |
| Converter resolution D/A | 16 bits |
| Accuracy | 0,5% of the range |
| Current loop supply | External or from internal unit supply 24 V DC / 22 mA |
| Galvanic isolation to supply voltage | 400 VAC |
| Binary outputs | |
| Number of outputs | 4, mutually separated |
| Outputs type | Semiconductor relays |
| Maximum load current | 100 mA DC/AC |
| Maximum voltage | 60 V DC/AC |
| Galvanic isolation | 400 VAC |
| RS485 serial port | |
| Maximum load | 32 receivers / transmitters |
| Maximum line length | 1200 m |
| Maximum differential voltage A(+) – B(-) | -8 V … +13 V |
| Maximum total voltage A(+) – „ground” or B(-) – „ground” | -7 .. +12 V |
| Transmitter minimum output signal | 1,5 V (at R0 = 54 W) |
| Receiver minimum sensitivity | 200 mV / RWE = 12 kW |
| Minimum impedance of data transmission line | 27 W |
| Internal terminating resistor | Yes, activated by short-circuit pins on terminal block |
| Short circuit/ thermal protection | Yes |
| Transmission protocol | ASCII
Modbus RTU |
| Baud rate | 1.2, 2.4, 4.8, 9.6 ,19.2, 38.4, 57.6, 115.2 kbps |
| Parity control | Even, Odd, None |
| Frame | 1 start bit, 8 data bits, 1stop bit |
| Galvanic isolation | No |
| Ethernet port | |
| Transmission protocol | Modbus TCP, ICMP (ping), DHCP server, http server |
| Interface | 10BaseT Ethernet |
| Data buffer | 300 B |
| Number of opende connections (simultaneously) | 4 |
| Connector type | RJ-45 |
| LED signaling | 2 (build in RJ-45 socked) |
| USB port | |
| Socket type | A type, according to USB standard |
| Version | USB 1.1 |
| Socket protection class | IP-54 |
| Data format | FAT16 |
| Read/write signaling | Red/green/yellow LED on front panel |
| Archiving, internal data memory | |
| Memory capacity | 2 GB (nonvolatile memory) |
| Recording format | FAT16 (within a limited scope) |
| Recording indication | Green-red USB LED on the front panel |
| BC-3 and BC-3N power supply | |
| Supply voltage | 24 VAC (+5% / -10%)
or 24 VDC (15 .. 30 VDC) |
| Maximum power consumption | 6 VA / 6 W |
| BC-3N power supply | |
| Supply voltage | 100 – 240 VAC 50/60Hz |
| Maximum power consumption | 16 VA |
| BC-3 casing – dimensions | |
| Casing type | For panel surface, nonflammable plastic material „Noryl” |
| Dimensions (height x width x depth) | 96 mm x 192 mm x 63,5 mm |
| Housing depth with terminals (without extra space for cables) | ca. 72 mm |
| Panel cut-out dimensions | 186 +1,1 mm X 92 +0,6 mm |
| Panel maximum thickness | 5 mm |
| Weight | ca. 0,7 kg |
| Protection class from the front panel | IP-54 |
| Protection class from the rear panel | IP-30 |
| BC-3N casing – dimensions | |
| Casing type | Wall mounting, ABS |
| Dimensions (height x width x depth) | 217 mm X 257 mm X 125 mm (without cable glands)
247 mm X 257 mm X 125 mm (with cable glands) |
| Weight | ca. 2,1 kg |
| Protection class | IP-54 |
| Wire connection | |
| BC-3 | Screw type terminal blocks, max. cable diameter 1,5 mm2 |
| BC-3N | Spring type terminal blocks, cable diameter 0,2 mm2 – 1,5 mm2
Screw type terminal block, cable diameter 0,2 mm2 – 1,5 mm2 |
| Climate conditions | |
| Ambient temperature | 0 .. +40 °C |
| Relative humidity | 0 .. 75% (without steam condensation) |
| Storage temperature | -20 .. +80 °C |
Batch-controller
• Up to 3 batch systems
• One or two-step batching mode
• 5 measurement inputs
• 4 semiconducting output relays rated at 01.A / 60V
• 1 or 2 4-20mA analog outputs (optional)
• Valves can be controlled by relay outputs or by 4-20mA analog output
• 2 totalizers for each inputs or batcher
• Results recorded in internal 2GB memory. Local access to stored data through USB port on face plate
• RS-485 communication port, Modbus RTU protocol
• Ethernet communication port; Modbus TCP protocol, WWW server
• 19-buttons extended keyboard version (makes it easier to enter and edit numbers, text, formulas and passwords
Inputs
The device has five measurement inputs
• 2 x I, two inputs adapted for connection of transducers with a 0/4-20mA current output
• 3 x I/PULS, three inputs intended for connection of transducers with a 0/4-20mA current outputs or with a pulse output (range 0.0001Hz … 10kHz)
Flow measurement
The device cooperate with flowmeters (e.g. ultrasonic, electromagnetic, vortex) with
• 0/4-20mA outputs signal proportional to flow
• impulse output with constant pulse value
• frequency output proportional to flow
Batch features
The batching can by
• One step
• Two steps, to reduce batch overrun, flow rate is limited at the end of batching process
Two outputs relays provide control for dual stage batch. At the start of the bath valves (main and precise one) are open, at the end only the precise one.
If the analog outputs are used for control the valves the two steps of batch are executed by various values of current. BC-3(N) batcher contain “learn algorithm”: the device “learn” the amount of batch overrun and then seek to turn the batch off “early” by the average amount of the batch overrun. This feature may be enabled or disabled.
Totalizers
• Two totalizers for each inputs and each of three batchers (A, B, C).
Alarms
The alarm situations signalized by the device
• Batch overrun: the amount of fluid is greater than the set point which was entered or the flow didn’t stop after a set time
• There in no flow after a specified period of time after opening the valve
• Flow started although there is no bathing
Application
BC-3 and BC-3N batch-controllers are used in many industries, in power plants and CHPs, in the metallurgical, food, chemical, wood and paper industries, etc. Examples include: dosing chemicals for manufacturing processes such as paper production.
This product is CE marked.
Declarations of Conformity are available on request.
| User interface, front panel | |
| Display type | LCD TFT color, 272 x 480 pixels |
| Readout field size | 43.8 mm x 77.4 mm |
| LED indication | 3 two-color LEDs, red-orange-green |
| Keyboard | 19 membrane buttons |
| Inputs organization | |
| 2 x I: | IN1, IN2 |
| 3 x I / PULSE: | IN3, IN4, IN5 |
| 0/4-20mA type analog inputs | |
| Signal type | 0-20mA or 4-20mA |
| Transmitter connection | Passive transmitter (supplied from measuring loop) or active converter |
| Input resistance | 100 W ±10% |
| Transmitters supply | 24 V DC / max 22 mA |
| A/D converter resolution | 18 bits |
| Accuracy (Ta = 20 °C) | ±0,1% of the range (typical ±0,05% of the range) |
| Temperature drift | Max ±50 ppm / °C |
| Galvanic isolation between inputs | No, common potential GND for all inputs |
| Galvanic isolation to supply voltage | 400 VAC |
| Signal type | 0-20mA or 4-20mA |
| PULSE type inputs (pulse/frequency) | |
| Maximum input voltage | ±28 VDC |
| Galvanic isolation between inputs | No, common potential GND for all inputs |
| Galvanic isolation to supply voltage | 400 VAC |
| Functions | Pulse counting
Frequency measurement |
| Measuring range | 0,001 Hz to 10 kHz
(0,001 Hz to 1 kHz with connected filtering capacitor) |
| Minimum pulse width | 20 ms
0.5 ms, with filtrating capacitor |
| Accuracy (Ta = 20 °C) | 0,02% |
| Configuration: OC / contact (default) | |
| Voltage(OC) | 12 V |
| Current (contact) | 12 mA |
| On / off threshold | 2,7 V / 2,4 V |
| Configuration: input voltage | |
| Input resistance | >10 kW |
| On / off threshold | 2,7 V / 2,4 V |
| Voltage (open) | 12 V |
| NAMUR configuration | |
| High impedance state | 0,4 mA – 1 mA |
| Low impedance state | 2,2 mA – 6,5 mA |
| 4-20 mA analog outputs (optional) | |
| Number of outputs | No, 1 or 2 |
| Output signal | 4-20mA |
| Maximum voltage between I+ and I- | 28 VDC |
| Loop resistance (for Ucc = 24 V) | 0 .. 500 Ω |
| Converter resolution D/A | 16 bits |
| Accuracy | 0,5% of the range |
| Current loop supply | External or from internal unit supply 24 V DC / 22 mA |
| Galvanic isolation to supply voltage | 400 VAC |
| Binary outputs | |
| Number of outputs | 4, mutually separated |
| Outputs type | Semiconductor relays |
| Maximum load current | 100 mA DC/AC |
| Maximum voltage | 60 V DC/AC |
| Galvanic isolation | 400 VAC |
| RS485 serial port | |
| Maximum load | 32 receivers / transmitters |
| Maximum line length | 1200 m |
| Maximum differential voltage A(+) – B(-) | -8 V … +13 V |
| Maximum total voltage A(+) – „ground” or B(-) – „ground” | -7 .. +12 V |
| Transmitter minimum output signal | 1,5 V (at R0 = 54 W) |
| Receiver minimum sensitivity | 200 mV / RWE = 12 kW |
| Minimum impedance of data transmission line | 27 W |
| Internal terminating resistor | Yes, activated by short-circuit pins on terminal block |
| Short circuit/ thermal protection | Yes |
| Transmission protocol | ASCII
Modbus RTU |
| Baud rate | 1.2, 2.4, 4.8, 9.6 ,19.2, 38.4, 57.6, 115.2 kbps |
| Parity control | Even, Odd, None |
| Frame | 1 start bit, 8 data bits, 1stop bit |
| Galvanic isolation | No |
| Ethernet port | |
| Transmission protocol | Modbus TCP, ICMP (ping), DHCP server, http server |
| Interface | 10BaseT Ethernet |
| Data buffer | 300 B |
| Number of opende connections (simultaneously) | 4 |
| Connector type | RJ-45 |
| LED signaling | 2 (build in RJ-45 socked) |
| USB port | |
| Socket type | A type, according to USB standard |
| Version | USB 1.1 |
| Socket protection class | IP-54 |
| Data format | FAT16 |
| Read/write signaling | Red/green/yellow LED on front panel |
| Archiving, internal data memory | |
| Memory capacity | 2 GB (nonvolatile memory) |
| Recording format | FAT16 (within a limited scope) |
| Recording indication | Green-red USB LED on the front panel |
| BC-3 and BC-3N power supply | |
| Supply voltage | 24 VAC (+5% / -10%)
or 24 VDC (15 .. 30 VDC) |
| Maximum power consumption | 6 VA / 6 W |
| BC-3N power supply | |
| Supply voltage | 100 – 240 VAC 50/60Hz |
| Maximum power consumption | 16 VA |
| BC-3 casing – dimensions | |
| Casing type | For panel surface, nonflammable plastic material „Noryl” |
| Dimensions (height x width x depth) | 96 mm x 192 mm x 63,5 mm |
| Housing depth with terminals (without extra space for cables) | ca. 72 mm |
| Panel cut-out dimensions | 186 +1,1 mm X 92 +0,6 mm |
| Panel maximum thickness | 5 mm |
| Weight | ca. 0,7 kg |
| Protection class from the front panel | IP-54 |
| Protection class from the rear panel | IP-30 |
| BC-3N casing – dimensions | |
| Casing type | Wall mounting, ABS |
| Dimensions (height x width x depth) | 217 mm X 257 mm X 125 mm (without cable glands)
247 mm X 257 mm X 125 mm (with cable glands) |
| Weight | ca. 2,1 kg |
| Protection class | IP-54 |
| Wire connection | |
| BC-3 | Screw type terminal blocks, max. cable diameter 1,5 mm2 |
| BC-3N | Spring type terminal blocks, cable diameter 0,2 mm2 – 1,5 mm2
Screw type terminal block, cable diameter 0,2 mm2 – 1,5 mm2 |
| Climate conditions | |
| Ambient temperature | 0 .. +40 °C |
| Relative humidity | 0 .. 75% (without steam condensation) |
| Storage temperature | -20 .. +80 °C |