Repair
Repair Price: $ 1,994.00
Purchase
CSL Part Number: 47438
Product Overview: The Polysonic DDF4088 is a digital Doppler ultrasonic flowmeter transmitter that measures fluid flow in pipes using clamp-on ultrasonic transducers. It outputs a 4-20mA signal proportional to flow rate and includes relay control capabilities. The unit operates with a 600-640 kHz transmit frequency and features onboard voltage regulation (5V, 6V, 16V). Common in industrial process control applications, it provides non-invasive flow measurement without requiring pipe penetration or process shutdown.
Category: Flow Meters
Manufacturer: Polysonic
Manufacturer Part Number: DDF4088
Also Known As(AKA): Peek Measurement
Repair requires good transmitter / transducers be included with the control. Calibration is not included, quoted in addition to repairs.
Common Failures
The primary issues identified in the Polysonic DDF4088 Digital Doppler Ultrasonic Flowmeter include discharged batteries and degraded power supply capacitors. These components are important for device functionality and reliable operation.
Repair Approach
The repair process involved replacing defective electrolytic capacitors and the non-rechargeable lithium coin cell battery. A battery holder was also installed to facilitate future maintenance. These steps addressed the power supply issues identified during evaluation.
Testing & Quality
Post-repair, the device underwent diagnostic testing. The XMT output, 4-20mA loop, relay, and transducer functionality were verified to meet operational standards. Regulators and other key components were confirmed to be functioning correctly. A burn-in test was conducted to verify stability and performance consistency over an extended period.
Service and repair your broken Polysonic part
We can repair your Polysonic model DDF4088 in our facility. Let our skilled technicians get your Polysonic back in operation quickly.
Step 1 - Click the green 'Repair Now' button above to add the part and then complete the RMA.
Step 2 - The RMA form will be sent to you via email. Print the RMA form and put it in a box with the item(s) for repair.
Step 3 - Ship or mail the box to the address listed on the RMA.
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