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Flow computers

BC-3

Batch-controller in panel 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 0.1 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
• USB port on front panel
• Ethernet port (Modbus TCP protocol, server www)
• RS-485 port (Modbus RTU protocol)

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


Descritpion

Batch-controller

• Up to 3 batch systems
• One or two-step batching mode
• 5 measurement inputs
• 4 semiconducting output relays rated at 0.1 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
• USB port on front panel
• Ethernet port (Modbus TCP protocol, server www)
• RS-485 port (Modbus RTU protocol)

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.

Technical data
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
Examples of applications
Accesories
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