The new Low Impedance Mode boosts flowmeter performance by pushing more current through the transducer, allowing ultrasound signals to penetrate deeper into corroded pipes or particulated fluids.
This feature is ideal for challenging applications where high ultrasound attenuation reduces signal strength, increasing the received amplitude by approximately 4x.
When to Use Low Impedance Mode
For most situations, the flowmeter automatically adjusts power and gain to handle varying conditions. However, in installations with significant sound attenuation, enabling Low Impedance Mode enhances ultrasound penetration for more reliable measurements. Otherwise, keep it in High Impedance Mode (default) for better long-term zero stability.
How to Enable Low Impedance Mode
Access this feature via the Advanced Setup menu:
From the measurement screen, select “Edit” -> “Advanced” -> “Low Impedance”
Toggle the switch to “On”
Availability
This feature is included in flowmeters with firmware version v3.22.10 or later. For older versions, a firmware update is required:
Orcas Portable Flowmeters: Update remotely—call us for guidance.
Cypress Flowmeters: Send your unit to our factory for updating (one-time service fee applies).
Contact us today to schedule your firmware update or learn more!
