Resetting The Hourly Trend, Daily Trend And Period B; Verifying And Setting The Temperature Parameters Of The Hydran; Sensor; Verifying The Hydran 201 Sensor And Its Parameters - GE Hydran 201i Instruction Manual

Transformer gas monitoring system
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2. Access the submenu H201Ti Vx.xx; Gas.
3. Verify and set, as required, the 15 parameters (alarm set points and periods). Do
not set the parameters HourlyTr Period and DailyTr Period

7.4.4 Resetting the Hourly Trend, Daily Trend and Period B

The hourly trend, daily trend and Period B are reset by changing the value of their
period and then restoring them to their initial value after five minutes. Proceed as
follows:
1. In the submenu H201Ti Vx.xx; Gas, access the submenu Gas; HourlyTrend.
2. Access the parameter HourlyTr Period.
3. Set this parameter to 1 hour.
4. In the submenu H201Ti Vx.xx; Gas, access the submenu Gas;DailyTrend.
5. Access the parameter DailyTr Period.
6. Set this parameter to 1 day.
7. In the submenu H201Ti Vx.xx; Temperature, access the submenu Temperature;
DynOil Sampl.
8. Access the parameter Period B.
9. Set this parameter to 0 hour.
10. Wait five minutes and set these parameters to their default value:
• HourlyTr Period to 24 hours
• DailyTr Period to 30 days
• Period B to 24 hours
For details on trend computations and reset, see Section 11.4.2.

7.4.5 Verifying and Setting the Temperature Parameters of the Hydran

201 Sensor

For details on the parameters and commands in the submenu Temperature, see
Section 5.5.3.
1. Access the submenu H201Ti Vx.xx; Temperature.
2. Verify and set, as required, all parameters except Period B.

7.4.6 Verifying the Hydran 201 Sensor and its Parameters

For details on the parameters and commands in the submenu Service, see Section 5.5.4.
1. Access the submenu H201Ti Vx.xx; Service.
2. Access the submenu Service; SensorCal Data.
3. Ensure the displayed serial number, the ten parameters (B, M, N, S and A1 to A6)
and the checksum all correspond to the values on the Test Certificate and Data
Sheet (for an example, see Figure 7-1).
4. Access the command Force Sensor Test.
Page 118
Hydran* 201i Instruction Manual
MA-033
Rev. 14.0, 12-Nov-18

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