GE Hydran 201i Instruction Manual page 68

Transformer gas monitoring system
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Note: The ServiceL, ServiceI and ServiceA variables pertain to the H201 sensor
automatic test and are reserved to the General Electric Customer Service. A defective
H201 sensor immediately triggers the fail alarm (if this alarm condition is on; see the
FaultTrig. parameter in Section 5.5.7.3).
5.5.1.5
History Setup (Extended Menu Only)
This function gives access to the logging rate parameters of the Short Term and Long
Term historic data files. Once set, the new value will only come into service after the
current period is over.
• ShrtTerm LogRate: Logging rate for Short Term recordings. The total capacity is
480 recordings. For example:
-
The minimum logging rate of 1 minute provides a capacity of 480 minutes (8
hours).
-
A logging rate of 5 minutes provides a capacity of 40 hours.
-
The default logging rate of 15 minutes provides a capacity of 5 days.
-
A logging rate of 60 minutes provides a capacity of 20 days.
-
The maximum logging rate of 360 minutes (6 hours) provides a capacity of 120
days (4 months).
• LongTermLog#1, #2, #3 and #4: Time of first, second, third and fourth Long Term
recordings. The total capacity is 480 recordings. For example:
-
1 recording per day allows a capacity of 480 days (1 year and 4 months).
-
2 recordings per day allows a capacity of 240 days (8 months).
-
3 recordings per day allows a capacity of 160 days (5 months).
-
4 recordings per day allows a capacity of 120 days (4 months).
Note: LongTermLog#1 cannot be turned off; however, LongTermLog#2, #3 and #4
can each be turned off.
LongTermLog#1
LongTermLog#3, etc.
5.5.1.6
Clear Events (Extended Menu Only)
This function is used to delete all data from the historic data file Events. This
command requires password No. 2.
5.5.1.7
Clear Short Term (Extended Menu Only)
This function is used to delete all data from the historic data file Short Term. This
command requires password No. 2.
5.5.1.8
Clear Long Term (Extended Menu Only)
This function is used to delete all data from the historic data file Long Term. This
command requires password No. 2.
Page 68
The logging times must be set in chronological order,
being
the
first
of
Hydran* 201i Instruction Manual
the
day,
LongTermLog#2
preceding
MA-033
Rev. 14.0, 12-Nov-18

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