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Branson originally developed the pH-1 and pH-2 miniature ultrasonic transducers as an accessory for sensor packages in the instrumentation industry. They are still used to clear debris from pH and other sensitive sensors in remote or dirty applications. They provide a very reliable, compact method of assuring accurate data under very difficult sensing conditions. They have since been adapted to other non-sensor applications where small size and reliability are critical.
The pH-1 transducer assembly utilizes a highly efficient 40 kHz piezoelectric industrial transducer element to assure maximum energy at the radiating surface. It is packaged in a 3" diameter by 3" long housing and is fully immersible. The housing is constructed of type 316 stainless steel for compatibility with a broad range of process liquids. A 3/4" stainless steel flange is available to facilitate mounting.
The pH-2 transducer assembly operates at a frequency of 70 kHz which has the added benefit of smaller particle removal. The pH-2 is packaged somewhat differently. The 70 kHz ceramic is essentially "clad" in a type 316 stainless steel jacket which is fitted with a 3" tube with an offset through which power is introduced. The product takes on an appearance somewhat like a lollipop with a bent stick. Both the pH-1 and pH-2 transducers are driven by a dedicated ultrasonic generator. The generator includes a variable power control so power can be precisely matched to the application. It is packaged in a NEMA IV enclosure for maximum protection in harsh environments.
| pH-1 Transducer |
| Overall dimensions: |
3"H x 4.5" Dia |
| Construction: |
316 Stainless steel |
| Operating frequency: |
40 kHz |
| Operation temperature: |
35° F to 180°
F (2° C to 82° C) |
| pH-2 Transducer |
| Overall dimensions: |
5"Lx1.9"Wx1.4"H |
| Transducer dimensions: |
1.9" Dia.x 0.5"H |
| Operating frequency: |
70 kHz |
| Operating temperature: |
35° F to 180° F |
| Ultrasonic Generator |
| Overall dimensions: |
11.5"Lx9"Wx4.5"H |
| Operating frequency: |
per transducer |
| Power requirements: |
115 or 220V, 1 ph., 50/60 Hz |
| Weight: |
17 lbs. (7.4 kg) |
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