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Instruction Manual
IB-106-340 Rev. 2.4
April, 2001
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-7
Oxymitter 4000
1-3 IMPS 4000 (Optional)
Information on the IMPS 4000 is available in the
IMPS 4000 Intelligent Multiprobe Test Gas Se-
quencer Instruction Bulletin.
1-4 SPS 4000 (Optional)
The SPS 4000 Single Probe Autocalibration
Sequencer provides the capability of performing
automatic, timed or on demand, calibrations of a
single Oxymitter 4000 without sending a techni-
cian to the installation site.
a. Mounting
The SPS 4000 can be mounted either di-
rectly to an Oxymitter 4000 or at a remote
location if space is limited. In addition, the
integrally mounted SPS 4000 can be con-
figured for a horizontally or vertically
mounted Oxymitter 4000 (Figure 2-2). The
information in this instruction bulletin will
cover the integrally mounted units only. For
information on remote mounted units, refer
to the SPS 4000 Single Probe Autocalibra-
tion Sequencer Instruction Bulletin.
b. Components (Figure 1-5)
The SPS 4000 consists of a manifold and a
calibration gas flowmeter. The manifold
provides electrical feedthroughs and cali-
bration gas ports to route power and signal
connections and calibration gases to and
from the sequencer. In addition, the mani-
fold houses two calibration gas solenoids
that sequence the gases to the Oxymitter
4000, a pressure switch that detects low
calibration gas pressure, and two PC
boards. A terminal strip housed within the
terminal cover provides convenient access
for all user connections.
Components optional to the SPS 4000 in-
clude a reference air flowmeter and pres-
sure regulator. The reference air flowmeter
indicates the flow rate of reference air con-
tinuously flowing to the Oxymitter 4000. The
reference air pressure regulator ensures the
instrument air (reference air) flowing to the
Oxymitter 4000 is at a constant pressure
[20 psi (138 kPa)]. The regulator also has a
filter to remove particulates in the reference
air and a drain valve to bleed the moisture
that collects in the filter bowl.
Brass fittings and Teflon tubing are stan-
dard. Stainless steel fittings and tubing are
optional. Also, disposable calibration gas
bottles are available as an option or can be
purchased through a local supplier.
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