Emerson 3000 World Class, Instruction Manual, c.Electrical Connections, 18.MPS Gas Connections

Instruction Manual

IB-106-300NH Rev. 4.3 May 2005

World Class 3000

3.Connect the low O2 calibration gas to LOW GAS. The calibration gas pres- sure should be set at 20 psi (138 kPa).

4.Connect the REF AIR OUT to the ref- erence air fitting on the probe junction box.

5.Connect the CAL GAS OUT to the calibration gas fitting on the probe junction box.

6.If the MPS is configured for multiple probes (up to four), repeat steps 4 and 5 for each additional probe.

A check valve is required for each probe connected to an MPS to prevent condensation of flue gas in the cali- bration gas lines. The check valve must be located between the calibra- tion fitting and the gas line.

c.Electrical Connections

Electrical connections should be made as described in the electrical installation dia- gram, Figure 2-19. All wiring must conform to local and national codes. The electrical connections will exist only between the electronics package and the MPS to enable automatic and semiautomatic calibration. If

more than one probe system is being used, the additional probes and electric packages would be wired similar to the first probe.

NOTE

Refer to Figure 2-19 for fuse locations and specifications.

1.Run the line voltage through the bulk- head fitting on the bottom of the MPS where marked LINE IN, Figure 2-18.

Connect the line voltage as shown in Figure 2-19 to the LINE IN terminal on the MPS termination board located in- side the unit. Tighten the cord grips to provide strain relief.

2.The MPS can accommodate up to four probes. The terminal strips on the MPS termination board are marked PROBE 1, PROBE 2, PROBE 3, and PROBE 4. Select PROBE 1 if this is the first probe and electronic package installed on the MPS.

3.Make the connections from the MPS to the IFT as shown in Figure 2-19. Run wires from the MPS Termination Board inside the unit through the bulkhead fit- ting on the bottom of the unit where marked SIGNAL IN, Figure 2-18. After the connections are made, tighten the cord grips to provide strain relief.

			PROBE 1	PROBE 2	PROBE 3	PROBE4
HIGH CAL		LOW CAL	CAL GAS	CAL GAS	CAL GAS	CAL GAS
	GAS IN	GAS IN	OUT	OUT	OUT	OUT
			REF AIR	REF AIR	REF AIR	REF AIR
			OUT	OUT	OUT	OUT
	INSTR
	AIR

LINE IN

SIGNAL IN

DRAIN 27270014

Figure 2-18. MPS Gas Connections

2-22 Installation Rosemount Analytical Inc. A Division of Emerson Process Management