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TQM models

TQM - 21 (Track Quality Measuring recorder)

TQM 21

Chord configuration
2m HV (Horizontal Versine) Chord
1m VV/LL (Vertical Versine/Longitudinal Level) chord

Usage: Switches and Sidings

TQM - 22 (Track Quality Measuring recorder)

TQM 22

Chord configuration
2m HV (Horizontal Versine) Chord
2m VV/LL (Vertical Versine/Longitudinal Level) chord

Usage: Sidings and Slow Lines

TQM - 32 (Track Quality Measuring recorder)

TQM 32

Chord configuration
3m HV (Horizontal Versine) Chord
2m VV/LL (Vertical Versine/Longitudinal Level) chord

Usage: Fast Lines and Slow Lines