Monark 839 E, Manual

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Monark Ergomedic 839 E
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8.3 Calibration of pendulum weight
Although all Ergometers are calibrated at the
factory the user may wish to verify this by
performing a mechanical scale calibration. If so
please do the following.
Remove the cover from the flywheel. Loosen the
balancing spring from the brake belt. Check that
the 0-index of the scale is in line with the index of
the pendulum weight. Adjust if needed. NB. Wait
until the flywheel is not moving any longer.
Attach a known weight, e.g. 4 kg (our ref. No
9000-221) where the balancing spring was pla-
ced. Note: The weight should not be lighter than
3 kg, due to the possibility of inferior accuracy.
When correctly set, it should be possible to read
this weight from rhe corresponding place on the
meter panel.
Should there be a deviation, adjust the pendu-
lum to the correct position on the scale by means
of the adjusting weight. In order to change the
position of the adjusting weight, loosen the lock
screw of the weight.
Should the index of pendulum, weight be too
low, move the adjusting weight upwards into the
weight. Should the index be too high the adjus-
ting weight is moved somewhat downwards and
locked in the new position. This procedure is re-
peated until the correct reading is achieved.
Check the calibration of the pendulum weight
once a year or when needed.
Assemble the front cover again.
Fig: Calibration
1) Lock screw
2) Adjusting weight
3) Lock nut
4) Brake belt
5) Meter panel
6) Weight
8.4 Zero adjustment of meter panel
Move the pendulum to 4 kp and keep it there for
a few seconds. Check that the belt is loosened.
If adjustment is necessary, loosen first the lock
nut(3) and then change the position of the meter
panel (5), so that the board will have its 0-index
in line with the index of the weight. Tighten the
lock nut after the adjustment.