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Instruction Manual
IB-106-340 Rev. 2.4
April, 2001
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-15
Oxymitter 4000
Do not use 100% nitrogen as a low gas
(zero gas). It is suggested that gas for
the low (zero) be between 0.4% and
2.0% O2. Do not use gases with hy-
drocarbon concentrations of more
than 40 parts per million. Failure to
use proper gases will result in errone-
ous readings.
b. Calibration Gas
Two calibration gas concentrations are used
with the Oxymitter 4000, Low Gas - 0.4% O
2
and High Gas - 8% O
2
. See Figure 2-12 for
the Oxymitter 4000 connections.
2-5 PNEUMATIC INSTALLATION (FOR OXY-
MITTER 4000 WITH SPS 4000)
Do not use 100% nitrogen as a low gas
(zero gas). It is suggested that gas for
the low (zero) be between 0.4% and
2.0% O2. Do not use gases with hy-
drocarbon concentrations of more
than 40 parts per million. Failure to
use proper gases will result in errone-
ous readings.
500 VA
R
SERIAL NO.
TAG NO.
OXYMITTER 4000
VOLTS: WATTS:
OUTPUT: LINE FUSE:
Rosemount Analytical Inc.
Orrville,OH 44667-0901
85-264 VAC 48-62 Hz
TM
800-433-6076
4-20 mA
R
5 Amps
TM
HART
SMART FAMILY
CALIBRATION GAS
REFERENCE AIR
26170025
Figure 2-12. Oxymitter 4000 Gas Connections
Calibration Gas Connections
Locate the 1/4 in. calibration gas fittings on
the SPS 4000 manifold (Figure 2-2). Con-
nect O
2
calibration gas 1 (high calibration
gas) to the HIGH CAL GAS IN fitting and O
2
calibration gas 2 (low calibration gas) to the
LOW CAL GAS IN fitting. Ensure the cali-
bration gas pressure is set at 20 psi
(138 kPa).
a. Reference Air Connection (Optional)
If the reference air option (which includes
the reference air flowmeter, pressure regu-
lator, and necessary tubing and fittings) is
used, connect the instrument air to the
1/4 in. fitting on the reference air pressure
regulator (Figure 2-2). The pressure regu-
lator is factory set at 20 psi (138 kPa). Re-
adjust by turning the knob on the top of the
regulator to obtain the desired pressure.
If the SPS 4000 does not have the refer-
ence air option, connect the reference air to
the Oxymitter 4000 as instructed in para-
graph 2-4.
NOTE
!
Upon completing installation, make sure that the Oxymitter 4000 is turned on and operating
prior to firing up the combustion process. Damage can result from having a cold Oxymitter
4000 exposed to the process gases.
During outages, and if possible, leave all Oxymitter 4000 units running to prevent condensa-
tion and premature aging from thermal cycling.
If the ducts will be washed down during outage, MAKE SURE to power down the Oxymitter
4000 units and remove them from the wash area.
2