Teledyne T201 manual Replacing the Catalytic Cartridge, Description

Maintenance Schedule			Teledyne API Model T201 NH3 Analyzer Operator Manual
	Table 4-2. M501 NH3 Converter Rebuild Parts List
	Part No.		Description
	KIT000193	RETROFIT, M501 NH3 INNER TUBE w/SCREEN
	KIT000139	REBUILD, CERAMIC BUSHINGS, M501 NH3
	HE0000007	CERAMIC HEATER, 220W@60V M501XX

4.2REPLACING THE CATALYTIC CARTRIDGE

1.Turn off power to the converter and allow to cool.

IT IS VERY IMPORTANT THAT THE CONVERTER BE COOL BEFORE ATTEMPTING ANY DISASSEMBLY OR REPAIRS.

CAUTION – VERY HOT

Will cause severe burns. Disassembly while hot will damage other converter components. Allow sufficient time to cool.

2.Remove the chassis cover of the M501 NH3, remove the aluminum cover over the oven, remove the two U-shaped hold down clamps.

3.Disconnect the 1) stainless steel and 2) PTFE tubes from the converter cartridge.

4.Loosen the nut holding the cartridge assembly in the U-shaped angle bracket mounted on the chassis floor.

5.Gently lift and tilt the converter assembly out of the U-shaped bracket and slide the assembly out of the oven.

6.Loosen the ¼” SS tube fitting nearest the hold-down bracket; this fitting holds the central tube in the converter. Replace the tube that is part of KIT000193.

7.Re-assemble the converter by doing the above steps in reverse order.

Figure 4-1. Catalytic Cartridge

28 07271B DCN6646