GE Hydran 201i - Page 195

Page 195
Hydran* 201i Instruction Manual
MA-033 Rev. 14.0, 12-Nov-18
Routine
Frequency
Historic data verification (Section 14.5)
Annually or on
alarm
Dissolved gas analysis (DGA; Section 14.6)
Hydran 201Ti verification (Section 14.7):
• Visual inspection
• LED’s, heater, display and keypad verification (Section 7.2.2)
• Parameter verification (alarm set points, etc.)
• Alarm relays verification (Section 7.2.4)
• Verification of sensor tests
a
(Section 7.2.6)
• Analog output verification (if connected; Section 7.2.8)
Annually or on fail
alarm
Hydran 201Ci Controller verification (Section 14.8):
• Visual inspection
• LED’s, heater and display verification (Section 9.2.2)
• Hydran 201Ci-1’s analog output verification (if connected;
Section 9.2.3)
• H201Ci-1’s alarm relays verification (if connected; Section
9.2.4)
• RS-232 or USB and RS-485 communications verification
(Section 8.2.3)
Annually or on
fail alarm
a. The H201Ti’s sensor is tested automatically twice a month, and the results are stored in the historic data
file Service.
Table 14-1: Maintenance Routines and their Frequency