MUV2.4 Reference Meter

Accurate Field Sensor Testing

The MUV2.4 reference measuring device is designed for precise monitoring of field sensors according to DVGW and ÖNORM standards, ensuring compliance in drinking water, wastewater and ballast water systems. This robust, portable device helps auditors, inspectors and laboratories quickly determine whether a sensor requires recalibration or replacement, supporting accurate and safe water management. Housed in a durable IP65-rated metal enclosure and powered by rechargeable batteries, the MUV2.4 guarantees reliable operation even in demanding environments. Its automatic measurement range switching ensures accurate results without manual adjustments. Trusted by public health authorities and testing laboratories, the MUV2.4 combines precision, portability and durability, making it an essential tool for quality control and regulatory compliance in water systems.

General Product Overview

Technical Information

Configuration	Options
Housing	Aluminum, color black
Dimensions	110/85 x 230 x 35 [mm]
Weight	790g incl. Sensor and battery
Supply	operation time 8-10 h (fully charged) plug-in power supply 100-240 V AC / 50-60 Hz with EU adapter (US, UK adapter on request)
Display	LCD, 2 x 16 characters with backlight function
Measuring range	0.1-2000 W/m², measuring ranges with end value of 2, 20, 200, 2000 W/m2 automatic switching “overload" is displayed when the measuring range is exceeded
Memory	storage of the last measured value and the maximum value
Reference sensors	reference sensors are equipped with 1.3 m cable and M12 socket connection is made via M12 plug on the upper right only registered sensors in the device are detected (maximum 8 possible) serial numbers of the registered sensors can be found on the sticker on the back
Analogue output	voltage output: 0.1 to 4.1 V for each measuring range (0.1V=0W/m², 4.1V=2/20/200/2000W/m²) Ri = 10 kΩ, jack socket 2.5 mm in the connection compartment at the bottom of the device
Serial interface	RS232 output: 9600 baud, no parity, 1 stop bit, 8 data bits, GND/TxD/RxD connection via jack socket 3.5 mm in the connection compartment at the bottom of the device
Degree of protection	IP 65 with sensor connected and battery / connection compartment closed
Temperature range	ambient temperature 0 to 30° C
Recalibration	latest after 12 months, according to DVGW W294 rule resp. after a useful life of 100 hours
Accuracy	uncertainty to working standard: ≤ ± 1% for low pressure, ≤ ± 3% for medium pressure lamps uncertainty to internal reference: ≤ ± 1% uncertainty to primary standard DVGW/ÖNORM: ≤ ± 6.5% total uncertainty: ≤ ± 8.5% for low pressure, ≤ ± 10.5% for medium pressure lamps calibration protocol included in scope of delivery