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Burkert 8025 Flow Meter Manual PDF and Sourcing Sensor Remote Transmitter Wiring
Quick Answer: The Burkert 8025 manual PDF explains a 3 wire connection for a sourcing sensor to the remote transmitter. A typical setup uses 24 VDC, pulse or 4-20 mA output, and a shared ground. If you need a compatible flow transmitter for clean water, seawater, or chemicals, send us your pipe size DN, flow range, and output type.
Sourcing Sensor Wiring Basics
Most Burkert 8025 flow meters use a sourcing sensor. A sourcing sensor supplies voltage on the signal wire. The receiving device or remote transmitter provides a load to ground. If you have a sinking sensor instead, the wiring changes. In practice many engineers check the sensor type first because the manual PDF covers both variants. A sourcing sensor often uses PNP output. A PNP output switches the positive side. A sinking sensor often uses NPN output and switches the ground side.
For a remote transmitter, the manual PDF shows a simple layout. You connect 24 VDC positive to the sensor power terminal. You connect 0 VDC to the common terminal. The signal wire runs from the sensor to the transmitter pulse input. Some installations add a pull down resistor across the transmitter input if the input does not have an internal load. This detail matters in long cable runs inside a water treatment plant in Malaysia or a food processing line in Vietnam.
Remote Transmitter Wiring Steps
First check the sensor pinout in the Burkert 8025 manual PDF. Do not trust wire colors alone. Wire colors can change between production batches. Short runs under 3 m rarely cause problems. Long runs over 20 m often pick up noise from variable frequency drives or pumps. Use shielded cable with the shield grounded at one end only. This is a common fix on customer sites in Southeast Asia and the Middle East.
Connect the 24 VDC supply after all other wiring is complete. Set the remote transmitter input type to match the sensor. If you use a PNP sourcing sensor, set the input for PNP. Many 8025 compatible transmitters have a selector switch or a software setting. For 4-20 mA output, verify that the loop resistance is within the transmitter manual limit. We have seen sites where a 500 ohm loop worked fine, but a 750 ohm loop caused a low current fault.
Silver Instruments Replacement Options
Silver Automation Instruments supplies magnetic flow meters, ultrasonic flow meters, and oval gear flow meters that can replace a Burkert 8025 in many water and chemical applications. If you are searching for the Burkert 8025 manual PDF only for wiring, your sensor may still be healthy. If the transmitter has failed, consider a replacement transmitter or a complete flow meter. Our electromagnetic flow meters work for DN10 up to DN2000. They output 4-20 mA, pulse, RS485, and HART. We build them for desalination plants, wastewater plants, and food and beverage skids.
A customer in Vietnam asked us last year about a failing remote transmitter on a Burkert 8025 flow meter. The pipe size was DN50 and the fluid was clean water with a conductivity around 350 µS/cm. We supplied an electromagnetic flow meter with PN16 flange
Wiring Checklist Before Startup
Before you apply power, check these items. This is not a long list. Most engineers skip one of these steps and then chase a zero reading for half a day.
Check the sensor type. PNP sourcing sensors need a load to ground. NPN sinking sensors need a load to positive. Check the supply voltage at the sensor terminals under load. A 24 VDC power supply that drops to 19 VDC under load can cause unstable pulse output. Check the shield grounding. Ground the shield at the PLC or transmitter end only. Do not ground both ends if you have ground potential differences. Check the cable routing. Keep signal cable at least 300 mm away from variable frequency drive motor cables. Use twisted pair cable for pulse and signal lines.
If the remote transmitter display shows zero flow while the pump is running, check the paddle wheel or magnetic sensor for debris first. In a water line in Saudi Arabia we found sediment packed around the sensor after only three weeks. Cleaning the sensor fixed the reading in ten minutes.
FAQ: Burkert 8025 Sourcing Sensor and Remote Transmitter
Q1. What is a sourcing sensor on the Burkert 8025?
A sourcing sensor switches the positive voltage on the signal wire. It is often called PNP. The remote transmitter input must pull the signal to ground through a load. This is the most common wiring in clean water and low flow chemical dosing.
Q2. Can I use a 4 wire cable for a 3 wire sourcing sensor?
Yes. Use one wire for 24 VDC positive, one for signal, one for 0 VDC, and one spare wire. Do not connect the spare wire at both ends. Leave it floating or ground it at one end if noise is a problem.
Q3. Does Silver Instruments sell a direct replacement for the Burkert 8025?
We do not sell Burkert original parts. We supply compatible flow meters and transmitters. For clean water, an electromagnetic flow meter from Silver Instruments often replaces the 8025 with better accuracy and no moving parts. For diesel or oil, see our oval gear flow meter range.
Q4. What output signals do Silver Instruments flow meters support?
Most models support 4-20 mA, pulse, RS485 Modbus, and HART. You can specify the output when you order. We can also match the existing PLC input type so you do not need a signal converter.
Q5. What information should I send for a quote?
Send us the pipe size DN, fluid type, flow range, pressure in bar, temperature in °C, and the output required. For example, DN50, water, 0.5 to 20 m³/h, 4 bar, 30 °C, 4-20 mA plus pulse. We will reply with a model and a price.
Contact Silver Automation Instruments
For help with the Burkert 8025 wiring or a replacement flow meter, contact our sales team. Tel: +86-25-68650347. WhatsApp: +86-25-52155837. WeChat: +86 15365082610. Mention the Burkert 8025 manual PDF and your pipe size DN when you write. We answer most technical questions within one business day.