Ricoh OR-C1 Field Service Manual page 353

This should only be used as a reference value, because the power consumption specifications are
measured in a controlled environment with a constant power supply.
To get an exact measurement at the customers site, a watt meter must be used to measure the actual
energy consumed.
To use SP8941 to calculate the energy consumed:
• At the start of the measurement period, read the values of SP8941 001 to 005.
• At the end of the measurement period, read the values of SP8941 001 to 005 again.
• Find the amount of time spent in each mode (subtract the earlier measurement from the later
measurement).
• Multiply this by the power consumption spec for each mode.
• Convert the result to kWh (kilowatt hours)
Here is an example calculation.
Machine SP8941:
Condition Machine
Status
Operating 001:
Operatin
g Time
002:
Stand by
Standby
(Ready) Time
003:
Energy
Energy save
Save
(Panel off)
Time
004: Low
Power
Low power
Time
005: Off
Mode
Off/Sleep
Time
Total
Time at Time at End
Start (min.) (min.)
21089.0 21386.0
306163.0 308046.0
71386.0 75111.0
154084.0 156340.0
508776.0 520377.0
Running Power
time consumption
(hour) Spec. (W)
( - )/
60 =
5.0 1081.8
31.4 214.0
62.1 214.0
37.6 146.0
193.4 7.0
Energy Save
Power
consumption
(KWH)
( x )/1000
=
7
5.35
6.72
13.29
5.49
1.35
32.20
351