Aircraft Spruce Canada
Brantford, ON Canada
Corona, CA | Peachtree City, GA
Chicago, IL | Wasilla, AK
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Trans-Cal Altimeter Encoder 30K SSD120-30N-RS232 Mod 1
MFR Model# SSD120-30N-232-M1
Overview
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The world's smallest and lightest altitude encoder.
There are two versions of this model:
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Features
- Featuring the best warranty in the business: 42-month manufacturer direct replacement. If your Trans-Cal encoder experiences a warranty-covered failure, it'll be replaced with a brand new unit with a new 42-month warranty.
- Average MTBF: 9.7+ years. That’s right, Trans-Cal encoders are among the most reliable in the market, commonly providing reliable service for over 10 years.
- Pin for pin replacement for most other manufacturers' encoders.
- Optional: Available with adapter plates that will allow the installer to mount the unit in another manufacturer's mounting tray.
Specifications
- Operating temperature: -20ºc to +70ºc
- Operating altitude: -1000' to +30,000'(available in altitudes from 30,000' up to 100,000')
- Accuracy: 50' from -1000' to +30,000’
- Weight: 5.9oz.
- Will operate on either 14 or 28 VCD at 0.270 Amps.
- No warm-up time: +20ºc to +70ºc, -20ºc to +20ºc, 30 seconds
- *The Narco AT-50 and earlier transponder models require a modification before thay will function correctly with any altitude encoder. This modification is outlined in Narco Service Bulletin AT-50A-5.
Documents
- Tech Data Sheet (PDF)
- Installation Manual (PDF)
Reviews
Compact, serial-interface, 10 resolution. This is my go-to encoder for all installations.
This is the only Encoder we install along with ADS-B Transponders, thank you for keeping them in-stock!!! We are also so thankful for the Chicago Warehouse, we get our orders in 1-day!!
An excellent plug and play replacement for the SSD120-120. This unit did not require any calibration after installation. The RS232 port wasn’t used but left the future upgrade option open.
Excellent quality and is very versatile. It did not require adjustment.
Q&A
Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
Yes, the Narco AT150A is compatible.
Yes, they are both encoders so the Trans-cal unit can replace the Ak-350. However, since they are from different manufacturers, the wiring will be different and it will not be plug and play. It will require a new install.
Per the manual, you will be able to give signal to both the transponder as well as the GNS 430.
Per the manual, the mounting tray does not come included in the package.
Yes, part # 11-06983 will work with the Stratus ESGI for RS232 data.
Thank you for providing this information. We will post it for other users to see.
Per the manufacturer, the new altitude encoder is backwards compatible in regard to wiring. There are also adapter plates available to accommodate the change in size and shape.
