Compaq MTEK6000 - Manual (Page 13)

MTEK6000 SERIES USER'S MANUAL
January 2002 2-3
SETTING UP THE INDEX ASSEMBLY
Output Shaft Rotation
To change the rotation of the output shaft to
counterclockwise (figure 2-2):
1. Loosen set screw e on gear E.
2. Disengage gear E from counter gear D.
3. Tighten set screw e.
4. Loosen set screw c on gear C.
5. Engage gear C with counter gear D.
6. Tighten set crew c.
7. Take care to align the gears properly, and
verify that they turn freely and do not
bind.
Figure 2- 2 Index Box Assembly
Input Drive Value
Fig. 2-2 above shows gearing in the correct
position for 10, 100, 1,000 or 10,000 cubic
feet/revolution (ft 3 /rev) and 0.1, 1 and 10
cubic meters/revolution (m 3 /rev). To change
the input drive value to 5 ft 3 /rev:
1. Loosen set screw a on compound gear A.
2. Lower gear A until its upper teeth engage
the upper teeth of compound gear B.
3. Tighten set screw a.
4. Take care to align the gears properly, and
verify that they turn freely and do not
bind.
When changing a MTEK6000 in the field
from a 10, 100, 1,000 or 10,000 ft
3 /rev drive
meter with a 5 ft 3 /rev drive, the CF per Pulse
In or Meter Drive parameter, must be
changed to a value of 10 using software or the
optional, external keypad / display.
NOTE
Electronic parameter CF per Pulse In or
Meter Drive should always equal the meter
drive value EXCEPT for 5 ft
3 /rev meters
which should be set at 10. When switching to
5 ft
3 /rev, the gear ratio is adjusted so that two
revolutions of the input drive gear result in
one revolution of the magnet and hub
assembly, which sends a pulse signal to the
instrument that equals 10 ft
3 /rev. The value
can be changed using software or the
optional, external keypad / display (see
Appendix A for addressing).
To change the input drive value to 10, 100,
1,000 or 10,000 ft
3 /rev, return compound gear
A to its original, factory-set position. Change
the CF Per Pulse In or Meter Drive
parameter using software or the optional,
external keypad / display (see Appendix A for
addressing).