Irrespectively of this manual exist only germany language, it's useful - although i need some additional task to translate: My english is bad, but usable - but i really dont speak germany. :)
Excellent service from this company (including a total refund on an earlier purchase when through no fault of the company the manual was incomplete). I have purchased several manuals which I have been very satisfied with, as I am with this one. Highly recommended.
Manual was delivered in a timely manner and was all in English as advertised. The manuals I received when we moved into our flat were in German, Italian, and French. Having never used a steamer before, and not speaking/reading German very well, I needed an English Manual. this was a huge help.
Great Manual. This manual is available no where else. It was exactly what I was looking for. Only in German.
Text excerpt from page 20 (click to view)
3-12.
Model 10811A/B Find the line on Table 3-1 corresponding to the oscillator's aging rate. Then find the maximum allowable error (accuracy) on the horizontal axis. Follow the maximum allowable error vertically until it crosses the oscillator's known aging rate. Move horizontally to the left and read the minimum calibration interval in days. maximum allowable error known aging rate (per day) = calibration interval in days
Example: 5 x 10-9 (maximum allowable error) 3 x 10-10/day (known aging rate) 3-13. 3-14. = 16.67 days (~17 days) 3 X 10-10/day (known aging rate)
From Table 3-1, the oscillator should be adjusted approximately every 17 days. The minimum calibration interval may also be determined from the following formula: