METZ CONNECT Analog Value Transmitter KMA-F8 110730

In building automation and industrial control, resistance-based sensors like potentiometers, NTC thermistors, and Pt1000 probes often need to be converted into standard analog signals for controllers and PLCs. The METZ CONNECT KMA-F8 Analog Value Transmitter solves this by converting resistance inputs from 1 kΩ to 100 kΩ into a selectable 0-10 V DC voltage or 4-20 mA DC current output. Its compact DIN rail housing and screw terminals make it easy to integrate into control cabinets, while the adjustable zero and span allow precise calibration for a wide range of sensor types.

Who is it for

This transmitter is ideal for HVAC technicians, building automation engineers, and industrial control system integrators who need a reliable, space-saving solution for converting resistive sensor signals. It is particularly suited for applications where potentiometers are used for setpoint adjustment, or where NTC/PTC temperature sensors and Pt1000 RTDs must interface with standard analog inputs.

Main features

• Converts resistance inputs (1 kΩ to 100 kΩ) to standard analog signals
• Selectable output: 0-10 V DC voltage or 4-20 mA DC current via DIP switches
• Wide supply voltage range: 24 V AC/DC ±15%
• Adjustable zero point and span via potentiometers for precise calibration
• DIN rail mounting (TS35) for quick installation in control cabinets
• Compact polyamide housing with IP20 protection
• Low power consumption: <1.5 VA (AC) / <0.5 W (DC)

Specifications

• Product type: Analog value transmitter
• Input type: Resistance (potentiometer, NTC/PTC, Pt1000)
• Input resistance range: 1 kΩ to 100 kΩ (adjustable)
• Output signal: Voltage 0-10 V DC or current 4-20 mA DC (selectable)
• Supply voltage: 24 V AC/DC ±15%
• Power consumption: <1.5 VA (AC) / <0.5 W (DC)
• Mounting: DIN rail TS35
• Number of channels: 1
• Operating temperature: 0°C to +50°C
• Storage temperature: -20°C to +70°C
• Protection class: IP20
• Connection: Screw terminals, max 2.5 mm²
• Accuracy: ±0.5% of full scale
• Galvanic isolation: No
• Housing material: Polyamide (PA)
• Certifications: CE
• Application areas: Building automation, HVAC systems, industrial control

Tips

Before wiring, verify that the sensor's resistance range falls within the adjustable input span. Use the DIP switches to select the output type that matches your controller's analog input. For best accuracy, perform a two-point calibration using the zero and span potentiometers after installation. Ensure the supply voltage is stable and within the specified tolerance to avoid measurement drift.