CF 51

The CF 51 is a stand-alone calculator issued from the Itron CF Heat Meter Family and represents a technological step forward in the metering of thermal energy. Easy to handle, this calculator will turn your investment into benefits.

Applications

Heating, Cooling and Combined, return and supply positioning.

Multi-Functional Display

The multifunctional display facilitates easy reading, providing fast and clear access to the most important billing data. The display enables the diagnosis of failure alarms from a single glance. The LCD has a long life time and through a push button, you get easy access to each level of data.

Features and Benefits

Modular Design
Plug and Play Communication options boards
Bonus calculator
Max. demand manager
2 wires
Simple to use
Easy reading
Upgrade with option boards

Standards

MID 2014/32/EU Module B+D
Env. Class E1, M1 acc. 2014/32/EU
OIML R75

Datasheet

Installation and Operating Instructions

Declaration of conformity

LoRaWAN

Mounting and Operating Instructions

Dimensions

Option Boards

The CF 51 is pre-equipped for communication. Different option boards can be plugged simply to the meter and start working automatically.

The following option boards are available:

Board 1: M-Bus + E/V Repetition
Board 2: M-Bus + 2 Water Meters pulse input
Board 3: GPRS Modem + E/V Repetition + M-Bus Master
Board 4: LON + 2 Water Meters pulse input
Board 5: LoRa CMi4130
Board 6: M-Bus + 2 Water Meters pulse input + power supply by M-Bus
Board 7: Modbus

CF 51 Energy Calculator

Metrology exceeds	OIML, EN 1434
Temperature range	0 … 180 °C
Temperature difference	3 … 160 K
Temperature sensors	Pt100 or Pt500, 2 wires
Display	LCD – 7 digits
Back-up memory	EEPROM
Power supply (optional)	6 or 12 year Lithium battery – 230 V main power supply or power supply by M-Bus
Protection class	IP64
Environmental class	Env. Class E1, M1 acc. 2014/32/EU
Ambient temperature	5 … 55 °C
Pulse value (programmable)	1 / 2.5 / 10 / 25 / 100 / 250 / 1000 L
Optical interface	EN 13757 / M-Bus protocol