Emerson Process Management 3000 - Manual (Page 55)

Instruction Manual
IB-106-300NH Rev. 4.2
July 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-23
World Class 3000
3. Connect the low O
2
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 2-20. 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 2-20 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 2-19.
Connect the line voltage as shown in
Figure 2-20 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 2-20. 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 2-19. After
the connections are made, tighten the
cord grips to provide strain relief.
HIGH CAL
GAS IN
LOW CAL
GAS IN
CAL GAS
OUT
REF AIR
OUT
INSTR
AIR
REF AIR
OUT
REF AIR
OUT
REF AIR
OUT
CAL GAS
OUT
CAL GAS
OUT
CAL GAS
OUT
PROBE 1 PROBE 2 PROBE 3 PROBE4
LINE IN
SIGNAL IN
27270014 DRAIN
Figure 2-19. MPS Gas Connections
2