Flow computers
FP70-P
The FP70-P is a panel-mount thermal energy meter for industrial applications, capable of simultaneously monitoring two independent measurement systems. Using signals from external flowmeters and sensors, it calculates flow rate, thermal power and energy for steam, water, other liquids and industrial gases. Built-in calculation algorithms also allow it to work with differential pressure flowmeters.
Measurement values, system diagrams and trends are available on the 5-inch colour TFT display. Data logging allows users to track changes in process parameters and compare energy consumption over time, while Modbus RTU and TCP communication enables integration with a supervisory control system.
FP70-P – flow and thermal energy measurement in industrial installations
The FP70-P measures flow and accumulated thermal energy for steam and water in industrial, heating and process installations. It acts as the calculation unit in a thermal energy metering system: using signals from external flowmeters and sensors, it calculates the flow rate, thermal power and energy of the medium. It also supports energy calculations for other liquids and industrial gases.
The instrument monitors two independent measurement systems, which can be configured by the user. It supports open and closed systems, including installations with measurements on the supply and return lines and steam–condensate systems. The collected data can be used to monitor fluid consumption, analyse thermal energy balances and assess installation performance.
Working with flowmeters and sensors
The FP70-P works with various types of flowmeters, temperature sensors and measurement transmitters. It also supports differential pressure flow measurement, with the option of using two differential pressure transmitters with different measuring ranges to extend the usable flow measurement range.
Calculations take account of fluid properties and operating conditions. For steam and water, the instrument uses IAPWS-IF97 formulations. For other fluids, it can use property data entered by the user.
Process monitoring and energy consumption analysis
The 5-inch colour TFT display presents measurement values, system diagrams and trends. The panel-mount enclosure allows the instrument to be installed in a measurement panel or control cabinet door, providing access to measurement values and instrument operation.
Data logging allows users to compare energy consumption over successive periods, track changes in process parameters and document process operation. Alarm functions indicate when configured thresholds are exceeded, while Modbus RTU and TCP enable measurement data to be transferred to a supervisory control system.
The FP70-P combines flow and thermal energy calculations with local display and data logging. It provides information for assessing energy consumption and making decisions about installation operation.
Wall-mount version
For installations requiring a wall-mounted instrument, the FP70-W flow and thermal energy computer with a 7-inch display is also available. Both models provide the same measurement and calculation functions; they differ in enclosure, display size and power supply.
| COMPENSATED FLOW AND HEAT ENERGY MEASUREMENT | |
| Accuracy of compensated steam, water, other liquid or technical gas flow | <2% (tipical <0,5%) |
| Frequency of measurement and calculation results | 0,5 s |
| FRONT PANEL | |
| Display type FP70-P | 5” LCD TFT colour 800x480px |
| Display size | 152mm x 91mm |
| LED indication | 3 colour LEDs |
| INPUTS ORGANIZATION | |
| FP70-P | 2 x PULS: IN1, IN2 2 x RTD: IN3, IN4 6 x I: IN5 – IN10 |
| RTD type analogue inputs | |
| Sensor type | Resistance (according to the table) |
| Measuring range | -200 .. +850 °C dla Pt100 -60 .. +150 °C dla Ni100 -180 ..+200 °C dla Cu100 |
| Sensor connection | 2, 3, or 4-wire |
| Wire resistance compensation | Manual, in range -99.99 .. +99.99 W |
| Maximum resistance of connecting wires | 20 W |
| A/D converter resolution | 24 bit |
| Accuracy (at Ta = +20 °C) | ± 0,5 °C (typowo ± 0,3 °C) |
| Temperature drift | Max ± 0,02 °C / °C |
| Galvanic isolation between inputs | No, common potential GND for all inputs |
| Galvanic isolation from supply voltage | 400 VAC (functional isolation) |
| 0/4-20mA type analogue inputs | |
| Signal type | 0-20mA lub 4-20mA |
| Transmitter connection | Passive (supplied from measuring loop) or active converter) |
| Input resistance | 12 W ±10% |
| Transmitters supply | 24 VDC / max 22 mA |
| A/D converter resolution | 24 bit |
| Accuracy (at Ta = +20 °C) | ±0.1% of the range (typically ±0.05% of the range) |
| Temperature drift | Max ±50 ppm / °C |
| Galvanic isolation between inputs | No, common potential GND for all inputs |
| Galvanic isolation from supply voltage | 400 VAC (functional isolation) |
| PULS type inputs (binary/pulse/frequency) | |
| Maximum input voltage | ±28 VDC |
| Galvanic isolation between inputs | No, common potential GND for all inputs |
| Galvanic isolation from supply voltage | 400 VAC (functional isolation) |
| Functions | State detection Pulse counting Frequency measurement |
| Measuring range | 0,02 Hz do 12,5 kHz |
| Minimum impulse width | 20 ms 0.5 ms with filtrating capacitor |
| Accuracy (at Ta = +20 °C) | 0.02% |
| Configuration: OC/contact(Default setting) | |
| Open circuit voltage | 12 V |
| Short circuit current | 12 mA |
| On/off threshold | 2.7 V / 2.4 V |
| Configuration: voltage input | |
| Input resistance | >10 kW |
| On/off threshold | 2.7 V / 2.4 V |
| Open circuit voltage | 12 V |
| Configuration: Namur | |
| High impedance state | 0.4 .. 1 mA |
| Low impedance state | 2.2 .. 6.5 mA |
| 4-20mA analogue output (optional) | |
| Number of outputs | 1 or 2 |
| Output signal | 4-20mA (3.6–22 mA) |
| Maximum voltage between I+ and I- | 28 VDC |
| Loop resistance (at Ucc = 24 V) | 0 .. 500 Ω |
| Converter resolution D/A | 16 bits |
| Accuracy | 0.5% |
| Current loop supply | External or internal power supply 24 VDC / 22 mA |
| Galvanic isolation between outputs | 400 VAC (functional isolation) |
| Galvanic isolation from supply voltage | 400 VAC (functional isolation) |
| Binary outputs (Solid State Relays) | |
| Number of outputs | 4 |
| Type of outputs | Solid State Relays |
| Maximum load current | 100 mA DC/AC |
| Maximum voltage | 60 V DC/AC |
| Galvanic isolation between outputs | 400 VAC (functional isolation) |
| Galvanic isolation from supply voltage | 400 VAC (functional isolation) |
| RS-485 serial port | |
| Maximum load | 32 receivers/transmitters |
| Maximum line length | 1200 m |
| Maximum differential voltage A(+) – B(-) | -7 .. +12 V |
| Maximum total voltage A(+) – ‘ground’ or B(-) – ‘ground’ | -7 .. +12 V |
| Minimal output signal from transmitter | 1.5 V (for R0 = 54 W) |
| Minimum receiver sensitivity | 200 mV / RIN = 12 kW |
| Minimum impedance of data transmission line | 54 W |
| Internal terminating resistor | Yes, activated by short-circuit pins on terminal block |
| Short-circuit/thermal protection | Yes/Yes |
| Transmission protocol | Modbus RTU |
| Baud rate | 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, 1 stop bit |
| Galvanic isolation | No |
| Ethernet port | |
| Transmission protocol | Modbus TCP, ICMP (ping), DHCP server, http server |
| Interface | 10/100 BaseT Ethernet |
| Data buffer | 300 B |
| Number of opened 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 2.0 |
| Socket protection class | IP54 |
| FP70-P power supply | |
| Supply voltage | 24 VDC (15 .. 30 VDC) |
| Maximum power consumption | 14 VA / 14 W |
| Wire terminals | |
| Type | screw type terminal blocks |
| Conductor cross section | solid max. 1.5mm2 |
| FP70-P enclosure – dimensions | |
| Enclosure type | Panel mount, nonflammable plastic material ‘Noryl’ |
| Dimensions (width x height x depth) | 192 mm x 96 mm x 63.5 mm |
| Enclosure depth with terminals | ca. 72 mm |
| Panel cut-out dimensions (width x height) | 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 | IP54 |
| Protection class from the rear panel | IP30 |
| FP70-P environmental conditions | |
| Ambient temperature | 0 .. +40 °C |
| Relative humidity | 0 .. 75% (without steam condensation) |
| Storage temperature | -20 .. +80 °C |
| Overvoltage category | OV II |
| Pollution degree | PD 2 |
| LVD (safety) | EN 61010-1 |
| EMC | Directive 2014/30/EU: immunity for industrial environments according to EN 61326-1:2013 (Table 2) conductive and radiated emissions Class A equipment according to EN 61326-1:2013 |
| RoHS | Directive 2011/65/EU |
| Installation location | Indoor only |
The FP70-W is a wall-mount thermal energy meter for industrial applications, capable of simultaneously monitoring two independent measurement systems. Using signals from external flowmeters and sensors, it calculates flow rate, thermal power and energy for steam, water, other liquids and industrial gases. Built-in calculation algorithms also allow it to work with differential pressure flowmeters.
Measurement values, system diagrams and trends are available on the 7-inch colour TFT display. Data logging allows users to track changes in process parameters and compare energy consumption over time, while Modbus RTU and TCP communication enables integration with a supervisory control system.
FP70-P – flow and thermal energy measurement in industrial installations
The FP70-P measures flow and accumulated thermal energy for steam and water in industrial, heating and process installations. It acts as the calculation unit in a thermal energy metering system: using signals from external flowmeters and sensors, it calculates the flow rate, thermal power and energy of the medium. It also supports energy calculations for other liquids and industrial gases.
The instrument monitors two independent measurement systems, which can be configured by the user. It supports open and closed systems, including installations with measurements on the supply and return lines and steam–condensate systems. The collected data can be used to monitor fluid consumption, analyse thermal energy balances and assess installation performance.
Working with flowmeters and sensors
The FP70-P works with various types of flowmeters, temperature sensors and measurement transmitters. It also supports differential pressure flow measurement, with the option of using two differential pressure transmitters with different measuring ranges to extend the usable flow measurement range.
Calculations take account of fluid properties and operating conditions. For steam and water, the instrument uses IAPWS-IF97 formulations. For other fluids, it can use property data entered by the user.
Process monitoring and energy consumption analysis
The 5-inch colour TFT display presents measurement values, system diagrams and trends. The panel-mount enclosure allows the instrument to be installed in a measurement panel or control cabinet door, providing access to measurement values and instrument operation.
Data logging allows users to compare energy consumption over successive periods, track changes in process parameters and document process operation. Alarm functions indicate when configured thresholds are exceeded, while Modbus RTU and TCP enable measurement data to be transferred to a supervisory control system.
The FP70-P combines flow and thermal energy calculations with local display and data logging. It provides information for assessing energy consumption and making decisions about installation operation.
Wall-mount version
For installations requiring a wall-mounted instrument, the FP70-W flow and thermal energy computer with a 7-inch display is also available. Both models provide the same measurement and calculation functions; they differ in enclosure, display size and power supply.
| COMPENSATED FLOW AND HEAT ENERGY MEASUREMENT | |
| Accuracy of compensated steam, water, other liquid or technical gas flow | <2% (tipical <0,5%) |
| Frequency of measurement and calculation results | 0,5 s |
| FRONT PANEL | |
| Display type FP70-P | 5” LCD TFT colour 800x480px |
| Display size | 152mm x 91mm |
| LED indication | 3 colour LEDs |
| INPUTS ORGANIZATION | |
| FP70-P | 2 x PULS: IN1, IN2 2 x RTD: IN3, IN4 6 x I: IN5 – IN10 |
| RTD type analogue inputs | |
| Sensor type | Resistance (according to the table) |
| Measuring range | -200 .. +850 °C dla Pt100 -60 .. +150 °C dla Ni100 -180 ..+200 °C dla Cu100 |
| Sensor connection | 2, 3, or 4-wire |
| Wire resistance compensation | Manual, in range -99.99 .. +99.99 W |
| Maximum resistance of connecting wires | 20 W |
| A/D converter resolution | 24 bit |
| Accuracy (at Ta = +20 °C) | ± 0,5 °C (typowo ± 0,3 °C) |
| Temperature drift | Max ± 0,02 °C / °C |
| Galvanic isolation between inputs | No, common potential GND for all inputs |
| Galvanic isolation from supply voltage | 400 VAC (functional isolation) |
| 0/4-20mA type analogue inputs | |
| Signal type | 0-20mA lub 4-20mA |
| Transmitter connection | Passive (supplied from measuring loop) or active converter) |
| Input resistance | 12 W ±10% |
| Transmitters supply | 24 VDC / max 22 mA |
| A/D converter resolution | 24 bit |
| Accuracy (at Ta = +20 °C) | ±0.1% of the range (typically ±0.05% of the range) |
| Temperature drift | Max ±50 ppm / °C |
| Galvanic isolation between inputs | No, common potential GND for all inputs |
| Galvanic isolation from supply voltage | 400 VAC (functional isolation) |
| PULS type inputs (binary/pulse/frequency) | |
| Maximum input voltage | ±28 VDC |
| Galvanic isolation between inputs | No, common potential GND for all inputs |
| Galvanic isolation from supply voltage | 400 VAC (functional isolation) |
| Functions | State detection Pulse counting Frequency measurement |
| Measuring range | 0,02 Hz do 12,5 kHz |
| Minimum impulse width | 20 ms 0.5 ms with filtrating capacitor |
| Accuracy (at Ta = +20 °C) | 0.02% |
| Configuration: OC/contact(Default setting) | |
| Open circuit voltage | 12 V |
| Short circuit current | 12 mA |
| On/off threshold | 2.7 V / 2.4 V |
| Configuration: voltage input | |
| Input resistance | >10 kW |
| On/off threshold | 2.7 V / 2.4 V |
| Open circuit voltage | 12 V |
| Configuration: Namur | |
| High impedance state | 0.4 .. 1 mA |
| Low impedance state | 2.2 .. 6.5 mA |
| 4-20mA analogue output (optional) | |
| Number of outputs | 1 or 2 |
| Output signal | 4-20mA (3.6–22 mA) |
| Maximum voltage between I+ and I- | 28 VDC |
| Loop resistance (at Ucc = 24 V) | 0 .. 500 Ω |
| Converter resolution D/A | 16 bits |
| Accuracy | 0.5% |
| Current loop supply | External or internal power supply 24 VDC / 22 mA |
| Galvanic isolation between outputs | 400 VAC (functional isolation) |
| Galvanic isolation from supply voltage | 400 VAC (functional isolation) |
| Binary outputs (Solid State Relays) | |
| Number of outputs | 4 |
| Type of outputs | Solid State Relays |
| Maximum load current | 100 mA DC/AC |
| Maximum voltage | 60 V DC/AC |
| Galvanic isolation between outputs | 400 VAC (functional isolation) |
| Galvanic isolation from supply voltage | 400 VAC (functional isolation) |
| RS-485 serial port | |
| Maximum load | 32 receivers/transmitters |
| Maximum line length | 1200 m |
| Maximum differential voltage A(+) – B(-) | -7 .. +12 V |
| Maximum total voltage A(+) – ‘ground’ or B(-) – ‘ground’ | -7 .. +12 V |
| Minimal output signal from transmitter | 1.5 V (for R0 = 54 W) |
| Minimum receiver sensitivity | 200 mV / RIN = 12 kW |
| Minimum impedance of data transmission line | 54 W |
| Internal terminating resistor | Yes, activated by short-circuit pins on terminal block |
| Short-circuit/thermal protection | Yes/Yes |
| Transmission protocol | Modbus RTU |
| Baud rate | 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, 1 stop bit |
| Galvanic isolation | No |
| Ethernet port | |
| Transmission protocol | Modbus TCP, ICMP (ping), DHCP server, http server |
| Interface | 10/100 BaseT Ethernet |
| Data buffer | 300 B |
| Number of opened 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 2.0 |
| Socket protection class | IP54 |
| FP70-P power supply | |
| Supply voltage | 24 VDC (15 .. 30 VDC) |
| Maximum power consumption | 14 VA / 14 W |
| Wire terminals | |
| Type | screw type terminal blocks |
| Conductor cross section | solid max. 1.5mm2 |
| FP70-P enclosure – dimensions | |
| Enclosure type | Panel mount, nonflammable plastic material ‘Noryl’ |
| Dimensions (width x height x depth) | 192 mm x 96 mm x 63.5 mm |
| Enclosure depth with terminals | ca. 72 mm |
| Panel cut-out dimensions (width x height) | 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 | IP54 |
| Protection class from the rear panel | IP30 |
| FP70-P environmental conditions | |
| Ambient temperature | 0 .. +40 °C |
| Relative humidity | 0 .. 75% (without steam condensation) |
| Storage temperature | -20 .. +80 °C |
| Overvoltage category | OV II |
| Pollution degree | PD 2 |
| LVD (safety) | EN 61010-1 |
| EMC | Directive 2014/30/EU: immunity for industrial environments according to EN 61326-1:2013 (Table 2) conductive and radiated emissions Class A equipment according to EN 61326-1:2013 |
| RoHS | Directive 2011/65/EU |
| Installation location | Indoor only |
The FP70-W is a wall-mount thermal energy meter for industrial applications, capable of simultaneously monitoring two independent measurement systems. Using signals from external flowmeters and sensors, it calculates flow rate, thermal power and energy for steam, water, other liquids and industrial gases. Built-in calculation algorithms also allow it to work with differential pressure flowmeters.
Measurement values, system diagrams and trends are available on the 7-inch colour TFT display. Data logging allows users to track changes in process parameters and compare energy consumption over time, while Modbus RTU and TCP communication enables integration with a supervisory control system.