GE Hydran 201i - Gas LL; Hourtrend H; Hourtrend HH

MA-033 Rev. 14.0, 12-Nov-18
Hydran* 201i Instruction Manual
Page 184
13.1.12 Gas LL
• Alarm type: Fail alarm
• Non-abbreviated description: Gas level Low-Low
• Priority: Medium
• Parameter(s) involved:
- Gas LL; SysOK Relay;FaultTrig. submenu; Section 5.5.7
- GasAlr LL (alarm set point); Gas;GasLevel submenu; Section 5.5.2.1
- GasAlr Delay; Gas;GasLevel submenu; Section 5.5.2.1
• Alarm cause(s): Gas level below the GasAlr LL alarm set point. Probably
indicates a gas level reading problem.
Perform steps 2 to 5 in Section 13.1.7.
13.1.13 HourTrend H
• Alarm type: Gas alarm
• Non-abbreviated description: Hourly trend High
• Priority: Medium
• Parameter(s) involved:
- HourTrAlr H (alarm set point); Gas;HourlyTrend submenu; Section 5.5.2.2
- HourTrAlr Delay; Gas;HourlyTrend submenu; Section 5.5.2.2
• Alarm cause(s): Hourly trend above the HourTrAlr H alarm set point
Proceed as follows:
1. Verify the hourly trend calculated by the Hydran 201Ti. This value is displayed in
the Main Display mode (see SectionUser Interface) and also in the HourlyTrend
screen in the Gas; HourlyTrend submenu (see Section 5.5.2.2). If this value seems
normal, verify whether the value of the alarm set point is adequate. This
parameter is probably set to a value that is too low.
Perform steps 2 to 5 in Section 13.1.5.
13.1.14 HourTrend HH
• Alarm type: Gas alarm
• Non-abbreviated description: Hourly trend High-High
• Priority: High
• Parameter(s) involved:
- HourTrAlr HH (alarm set point); Gas;HourlyTrend submenu; Section 5.5.2.2
- HourTrAlr Delay; Gas;HourlyTrend submenu; Section 5.5.2.2
• Alarm cause(s): Hourly trend above the HourTrAlr HH alarm set point