How to maintain the GE Hydran 201Ti (Mark IV) transformer monitoring equipment?

Function: Backlit LCD display screen (2 lines x 16 characters) with keyboard for setting devices and confirming alarms; The USB port (B-type connector) is used for local connection to the laptop configuration system, and the RS-485 (terminal block) is isolated to 2000 Vac RMS for connection to optional controllers and remote communication; Using Modbus via RS-485 ®  Or Hydran protocol outputs gas level (ppm) and gas change rate (ppm per hour or per day); Using 4-20mA output gas level ppm, ranging from 25-2000 ppm, maximum 10V load, isolated to 2000 Vac RMS.

Alarm: 3 different alarms (gas warning (Hi), gas alarm (HiHi), and service alarm (battery, sensor, temperature)), gas alarm can be set on the reached gas level or hourly or daily trend (gas level change rate), equipped with 3 dry touch point relays (Type C, SPDT），NO/NC， 3A@250Vac Resistive load, 3A@30Vdc Resistive load.

Manual sampling: an easily accessible external oil sampling port for glass syringes with a Ruhr plug.

Environment: The working environment temperature is -40 ° C to+55 ° C (-40 ° F to+131 ° F), and the working environment humidity is 0-95% RH (non condensing). When equipped with a finned radiator adapter option, the oil temperature at the valve is -40 ° C to+105 ° C (-40 ° F to+221 ° F), and the oil pressure at the valve is 0-700KPa (0-100psi) (vacuum resistant sensor).

Shell rating: NEMA Type 4X certified, compliant with IP56 requirements.

Power requirements: switchable between 90-132 Vac or 180-264 Vac, 47-63 Hz, maximum 475VA.

Mechanical parameters: cylindrical, can be installed on 1 ", 1.5" or 2 "internal thread NPT valves; The size is 178mm in diameter (7 ") x 180mm in length (7-1/8"); The installation weight is 5.6Kg (12lb); The transportation weight is 6.9Kg (15lb).

Option

Non NPT valve adapter; Fin heat sink adapter (1.5 "), used for ambient temperatures above 40 ° C (104 ° F) or oil temperatures above 90 ° C (194 ° F); Special pipe wrench for sensor installation and disassembly; H201Ci-1 single channel controller; H201Ci-C four channel controller; Accessories/options for the controller.