ENDRESS+HAUSER FTW 520DC 209135-0000

Endress+Hauser Nivotester FTW 520DC Limit Switch Amplifier

Description

The Endress+Hauser Nivotester FTW 520DC is a compact and reliable limit switch designed for level measurement in conductive liquids. It serves as a signal amplifier for conductive probes, providing two-point control for applications such as pump control or high/low level alarms. This robust unit is ideal for maintaining process safety and efficiency in various industrial environments. Its DIN rail mount design allows for easy and quick installation in control cabinets. Order now from spareparts2day for expert support and fast delivery.

Specifications

• Manufacturer: Endress+Hauser
• Model: Nivotester FTW 520DC
• Part Number: 209135-0000
• Power Supply: 24V DC
• Output: Relay, 250V AC / 4A
• Control Points: Min/Max level control
• Mounting: DIN Rail

Application

This device is commonly used in water treatment, food and beverage, and chemical industries for level control in storage tanks, mixing vessels, and sumps containing conductive fluids like water, acids, or bases.

Country of Origin

Manufactured in Germany.

CO2 Impact

By purchasing this reconditioned item, you are helping to avoid the production of a new one, which saves approximately 12 kg of CO2. This is comparable to the emissions from driving a car for 60 kilometers.

Availability

This is an obsolete item, available from our stock as a spare part to extend the life of your existing installations.

FAQ

Question?

What type of probe is the Nivotester FTW 520DC compatible with?

Answer:

The FTW 520DC is designed to work with conductive level probes. It detects the presence of a conductive liquid between the probe electrode(s) and the ground reference (tank wall).

Question?

Can this unit be configured for both minimum (MIN) and maximum (MAX) level control?

Answer:

Yes, the terminal connections for MIN and MAX allow for two-point control. You can use it to control a pump to fill or empty a tank between two set levels, or for high and low level alarms.

Question?

What do the LED indicators signify on the FTW 520DC?

Answer:

The LEDs provide status information. Typically, one LED indicates that the unit is powered on, while the other indicates the state of the output relay (e.g., ON when the level is detected). Please refer to the product manual for exact behavior.

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Last Update: Friday, March 13, 2026