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Programmable input, isolated analogue output, multi-voltage power supply, current transformer input, digital input, serial communication.
PID controller rail-mounted controller with flexibility and configurability summed up in a single order code.
Input can be programmed for temperature sensors, resistance thermometers and thermocouples, pressure transmitters, humidity and flow sensors.
utputs can be selected as command/multiple alarm modes/analogue retransmission. Serial communication is in RS485 with Modbus RTU/Slave protocol. Useful extended range power supply from 24 to 230V AC/DC with galvanic isolation from the network.
In addition to its function as a PID hot-cold controller, the DRR245 controller also serves as a signal convertor thanks to its galvanically isolated analogue output, which can be used in process retransmission/setpoint modes.
Main Features
Box: DIN43880, DIN EN50022 rail mounted
Power supply: 24...230VAC / DC ±15% 50/60 Hz (galvanic insulation 2500V)
Consumption: 5,5 VA
Display: 4 digits 0,4" green + 4 digits 0,3" red
Operating conditions: Temperature 0-45 °C, humidity 35..95 RU% (non condensing)
Material: Box: Polycarbonate V0; Front panel: Silicon V0
Weight: Approx. 195 g
Sealing: Front panel:IP65, Box and Terminal blocks: IP20
Quick set-up options: Memory Card with / without battery, software LABSOFTVIEW, EASY-UP codes
Wiring: With terminal extension
Inputs
1 AnalogRes. 16 bit, selectable for TC type K, S, R, J, (automatic compensation of the cold junction 0..50 °C, ± 0,2% F.S. ± 1 Digit F.S.), thermoresistance PT100, PT500, PT1000, Ni100, PTC1K. NTC10K, (ß 3435K), process signals 0..10V(54000 points), 0/4..20mA (40000points), 0..40mV (16000 points), potentiometer 6KΩ, 150 KΩ (50000 points)
Sampling time: 4,1 ms (Frequency from 4,12 Hz to 242 Hz)
1 current transformer: T.A. 50 mA (sampling time 100 ms)
1 Digital: PNP, 1/4 setpoint selection, Hold, Run Auto/man regulation, tuning start, pre-programmed cycle start
Outputs
2 Relays: Relays 5 A - 250 VAC resistive charge
1 Digital: PNP 12 V DC - 30 mA max
1 Analog: Selection 4 - 20 mA or 0 - 10 VDC for command or retransmission PV/SPV
1 Auxiliary: 12 VDC - 30 mAfor external sensor supply
Serial communication: RS485 Modbus RTU - Slave
Software features
Control algorithms: ON - OFF with hysteresis, P., P.I., P.I.D., P.D. time proportioned
Tuning: Manual or automatic
Data protection: Lock Command / alarm setpoint
Alarm mode: Absolute / Threshold, band, High / Low deviation. Loop Break Alarm function
Auto/Man function: Output percentage command also with automatic change in case of sensor failure
Double P.I.D.: Heating / Cooling P.I.D.
Programmer function: Start/Stop pre-programmed cycle with 2/3 steps
Soft-Start: Rising gradient expressed as Degrees / Hour
Setpoint: up to 3 Setpoints
Refrigeration components sold must be installed by an FGAS certified engineer.
Sales of all air conditioning units will require a valid FGAS certificate.
Failure to provide a valid certificate will result in your purchase being cancelled and payment refunded.
FGAS certificates must be issued by REFCOM, QUIDOS or VERITAS.
For all export orders, a member of our team will contact you to arrange shipping
Why CO2?: Natural refrigerant
EU F-Gas Regulation is a key priority for European countries. It ensures compliance with the Kigali Amendment supporting international climate commitments on greenhouse gases and leading the global transition to climate-friendly HFC-free technologies.
Carbon dioxide (R–744) is regaining its place in the refrigeration world. Driven by environmental concerns, legislation is requiring increased adoption of ‘alternative’ refrigerants, of which CO2 is one.
CO2 is a very attractive refrigerant from an environmental perspective. Zero ODP and “GWP” (Global Warming Potential)=1 means natural substance in the atmosphere.
In Europe a step-by-step HFC reduction has been in place since the F Gas regulation was introduced in 2015. In fact, not only in Europe but also other countries all over the world have actively been preparing to enact the necessary domestic legislation to implement the agreement for reducing the use of HFCs.
Panasonic is now able to provide a solution in Europe with CO2 refrigeration systems to prevent global warming and to support environment-friendly retail operations.
The following table shows how well R744 (CO2) performs regarding environmental impact and safety.

Programmable input, isolated analogue output, multi-voltage power supply, current transformer input, digital input, serial communication.
PID controller rail-mounted controller with flexibility and configurability summed up in a single order code.
Input can be programmed for temperature sensors, resistance thermometers and thermocouples, pressure transmitters, humidity and flow sensors.
utputs can be selected as command/multiple alarm modes/analogue retransmission. Serial communication is in RS485 with Modbus RTU/Slave protocol. Useful extended range power supply from 24 to 230V AC/DC with galvanic isolation from the network.
In addition to its function as a PID hot-cold controller, the DRR245 controller also serves as a signal convertor thanks to its galvanically isolated analogue output, which can be used in process retransmission/setpoint modes.
Main Features
Box: DIN43880, DIN EN50022 rail mounted
Power supply: 24...230VAC / DC ±15% 50/60 Hz (galvanic insulation 2500V)
Consumption: 5,5 VA
Display: 4 digits 0,4" green + 4 digits 0,3" red
Operating conditions: Temperature 0-45 °C, humidity 35..95 RU% (non condensing)
Material: Box: Polycarbonate V0; Front panel: Silicon V0
Weight: Approx. 195 g
Sealing: Front panel:IP65, Box and Terminal blocks: IP20
Quick set-up options: Memory Card with / without battery, software LABSOFTVIEW, EASY-UP codes
Wiring: With terminal extension
Inputs
1 AnalogRes. 16 bit, selectable for TC type K, S, R, J, (automatic compensation of the cold junction 0..50 °C, ± 0,2% F.S. ± 1 Digit F.S.), thermoresistance PT100, PT500, PT1000, Ni100, PTC1K. NTC10K, (ß 3435K), process signals 0..10V(54000 points), 0/4..20mA (40000points), 0..40mV (16000 points), potentiometer 6KΩ, 150 KΩ (50000 points)
Sampling time: 4,1 ms (Frequency from 4,12 Hz to 242 Hz)
1 current transformer: T.A. 50 mA (sampling time 100 ms)
1 Digital: PNP, 1/4 setpoint selection, Hold, Run Auto/man regulation, tuning start, pre-programmed cycle start
Outputs
2 Relays: Relays 5 A - 250 VAC resistive charge
1 Digital: PNP 12 V DC - 30 mA max
1 Analog: Selection 4 - 20 mA or 0 - 10 VDC for command or retransmission PV/SPV
1 Auxiliary: 12 VDC - 30 mAfor external sensor supply
Serial communication: RS485 Modbus RTU - Slave
Software features
Control algorithms: ON - OFF with hysteresis, P., P.I., P.I.D., P.D. time proportioned
Tuning: Manual or automatic
Data protection: Lock Command / alarm setpoint
Alarm mode: Absolute / Threshold, band, High / Low deviation. Loop Break Alarm function
Auto/Man function: Output percentage command also with automatic change in case of sensor failure
Double P.I.D.: Heating / Cooling P.I.D.
Programmer function: Start/Stop pre-programmed cycle with 2/3 steps
Soft-Start: Rising gradient expressed as Degrees / Hour
Setpoint: up to 3 Setpoints
Please Note: For all Export orders a member of our team will contact you to arrange shipping
Delivery & Returns
Delivery Policy
For Quick Pick and website items only, delivery is free of charge for orders over £100. For Quick Pick and website orders below £100, a £20 delivery and administration fee will be charged.
Hawco offers a next day delivery service for orders placed before 16:00 Monday - Friday. The delivery service is standard to all central UK. If you require overseas or timed delivery, please call the sales office on Hawco: 01483 869 070
Special Carriage Costs
When ordering online and chosing a "Special Carriage Charge" the times given are subject to a 2 hour grace period (therefore 10:30 deliveries have up to 12:30 to be delivered) and work off a next working day basis. Please make sure that if a timed carriage option is selected that someone is available to sign for the consignment as without this it will be subject to being returned to the delivery depot for a redelivery 1-2 days later.
N.B - All orders processed after 16:00, weekends or Bank Holidays are subjected to being processed the following working day
Returns Policy
An RMA request must be completed online at http://hawco.returnsportal.net/
If approved, an automated RMA email will be sent. This will reference a unique RMA number. The automated RMA approval email will prompt you to log into the online returns system and print off the RMA packing slip, which is to be affixed to the outside of the packaging.
N.B. Returns will not be accepted without a returns authorisation number (RMA) and will be returned at the sender’s expense.
When you have your returns authorisation number (RMA), please ensure you send the return to our Logistics Centre:
Hawco Logistics Centre,
8 Cranfield Road,
Lostock Industrial Estate,
Lostock,
Bolton, UK
BL6 4SB
N.B. - Any returns sent to the Hawco Head Office in Godalming and not the Logistics Centre address in Bolton will be refused. This may cause excessive delay in handling the return, or possible loss if your carrier mislays the delivery. Hawco cannot accept any liability for items which are not correctly addressed or packaged for return.
Credit or replacement product will only be issued on receipt and Hawco’s acceptance of faulty or damaged items. Items that are returned which are subsequently determined to have been damaged by the customer and or by their agent may be subject to an investigation and admin fee. In all instances any logistical costs incurred by Hawco during this process will be chargeable.
Item(s) must be returned within 7 days of the issue of the returns number. If not returned by this date then no credit will be given.
Items ordered incorrectly or that are surplus to requirements may be subject to a 20% restocking charge and will only be accepted within the first 3 months of sale and are still in the original packaging. Items ordered in specifically may be refused entirely.
N.B. No credit will be issued to any surplus items that are received damaged.
The customer has a 3 day window to report items that have been received damaged, failure to do so will result in your returns claim being rejected.
All deliveries and returns are subject to our standard Terms & Conditions of sale. - See more at: http://hawco.returnsportal.net/ReturnPolicy/