Leybold THERMOVAC TTR 911 N S Vacuum Transmitter; KF16
Model: TTR 911 N S (THERMOVAC active MEMS Pirani transmitter; RS232 variant).
Vacuum fitting: DN16 ISO-KF (KF16).
Measuring range (per spec, N2/air): 5x10⁻⁵ to 1000 mbar.
Power: 9–30 VDC.
(Analog output is log-scaled; RS232 comms on this variant; see manual/spec.)
Last calibrated in 2021.
Testing: This unit was tested across essentially its full range; the listing photos show the actual test results at:
1000 mbar (atmosphere end)
1E-2 mbar
1E-4 mbar
1E-5 mbar (deep end of the Pirani range)
Included: gauge/transmitter only; does not include our turbo pump station, cables, or anything else. Has a handy built-in display.
Used condition with normal cosmetic wear; function verified as above.
Leybold THERMOVAC, TTR911, TTR 911 N S, Pirani gauge, vacuum transmitter, RS232, KF16 DN16, foreline gauge, roughing gauge, MEMS Pirani.
