C581 Single stream Flow & Energy Computer

Specification

Large, versatile display with bright backlight, all info at a glance. Easy-to-operate with 6 rugged industrial silicone buttons. User-friendly operation and configuration via the keypad and display or with the free available configuration software.

• Displays calculated mass flow, volumetric flow and power at actual conditions.
• Calculates totalized values for volume, mass and energy.
• Determines density and enthalpy according to IAPWS.
• Main screen with custom selectable order of measured and calculated variables.
• Data logging of process parameters and calculated values.
• 11 linearization points per input, for all inputs.
• Ability to process various flow inputs: pulse (pending), (stacked) differential pressure or other 4 – 20mA signals.
• Ambient temp.: -40°C to +55/+70 °C (-40°F to +131/+158°F).
• Bright backlight for good readability during day and night.
• Multiple languages supported.
• Large graphical user interface with large digits.
• Hydrogen For industrial environments, measuring water, superheated and saturated steam at heat exchangers, boilers, condensers and coolers.
• For single or stacked differential pressure based flowmeters or averaging systems.
• Extreme weather and industrial conditions like rain, snow, sandy deserts, salty atmospheres and temperatures between -40°C up to +70°C (-40°F up to 158°F).

Signal Inputs

Flow meter input :

One HF pulse input (pending): NAMUR, Coil, PNP, NPN, Reed sensor or active input. One to three analog inputs: 4 – 20mA active or passive. Also suitable for 2 or 3 stacked dP sensors

Temperature input :

One Pt100, Pt500 (2- or 3-wire) or 4-20 mA (active/passive) input

Pressure input :

One analog input: 4 – 20mA active or passive input.

Status input:

Two configurable inputs for e.g. external alarms.

Signal outputs

Pulse outputs

Function: Two configurable pulse outputs, selectable from a list of calculated values.

Frequency max. 2kHz. Type: Two passive transistor outputs.

Alarm outputs

Function: Configurable for various errors or warning, selectable from a list of events, measured and calculated values. Type: Two passive transistor outputs and two relay outputs.

Analog outputs

Function: Function: Re-transmitting analog values, selectable from a list of calculated values. Type: One or two configurable active / passive isolated 4 – 20mA outputs.

Supply

Power Supply

16 – 27V DC

100-230V AC

Sensor Supply

Analog inputs: >20V DC when active.

Pulse inputs: 5.4 – 8.2 – 12 – 22V DC

Hazardous Area

Non-Sparking, Zone 2

Pending

Communication

Function: Reading display info, read/write configuration settings, data log extraction, firmware uploads (via USB only).
Protocol: Modbus RTU.
Interface: USB, RS232 and RS485 2-wire.