GE Sensing O2X1 Operating Manual
GE Infrastructure
Sensing
Model O2X1
Oxygen Transmitter
User’s Manual
GE Infrastructure
Sensing
Model O2X1
Oxygen Transmitter
User’s Manual
916-048G
September 2004
September 2004
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Mounting the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Wiring the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Making a Custom Transmitter Cable . . . . . . . . . . . . . . . . . . . . 6
Installing an Oxygen Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
The O2X1 Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
The O2X1 Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Entering and Exiting the User Program. . . . . . . . . . . . . . . . . . . . 13
Programming and Calibrating the O2X1 . . . . . . . . . . . . . . . . . . 14
Selecting the Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Trimming the Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Span Gas Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Air Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Model Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Electrical Classification/Certification . . . . . . . . . . . . . . . . . . . . . . 23
Intrinsically Safe Installation. . . . . . . . . . . . . . . . . . . . . . . . . . 24
Non-Hazardous Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 25
I
September 2004
Warranty
Each instrument manufactured by GE Infrastructure Sensing,
Inc. is warranted to be free from defects in material and
workmanship. Liability under this warranty is limited to
restoring the instrument to normal operation or replacing the
instrument, at the sole discretion of GE Infrastructure Sensing,
Inc. Fuses and batteries are specifically excluded from any
liability. This warranty is effective from the date of delivery to
the original purchaser. If GE Infrastructure Sensing, Inc.
determines that the equipment was defective, the warranty
period is:
• one year from delivery for electronic or mechanical failures
• one year from delivery for sensor shelf life
If GE Infrastructure Sensing, Inc. determines that the
equipment was damaged by misuse, improper installation, the
use of unauthorized replacement parts, or operating
conditions outside the guidelines specified by GE
Infrastructure Sensing, Inc. , the repairs are not covered under
this warranty.
The warranties set forth herein are exclusive and are in lieu
of all other warranties whether statutory, express or
implied (including warranties or merchantability and fitness
for a particular purpose, and warranties arising from course
of dealing or usage or trade).
III
September 2004
Return Policy
If a GE Infrastructure Sensing, Inc. instrument malfunctions
within the warranty period, the following procedure must be
completed:
1. Notify GE Infrastructure Sensing, Inc., giving full details of
the problem, and provide the model number and serial
number of the instrument. If the nature of the problem
indicates the need for factory service, GE Infrastructure
Sensing, Inc. will issue a RETURN AUTHORIZATION NUMBER
(RAN), and shipping instructions for the return of the
instrument to a service center will be provided.
2. If GE Infrastructure Sensing, Inc. instructs you to send your
instrument to a service center, it must be shipped prepaid
to the authorized repair station indicated in the shipping
instructions.
3. Upon receipt, GE Infrastructure Sensing, Inc. will evaluate
the instrument to determine the cause of the malfunction.
Then, one of the following courses of action will then be taken:
• If the damage is covered under the terms of the warranty,
the instrument will be repaired at no cost to the owner and
returned.
• If GE Infrastructure Sensing, Inc. determines that the
damage is
if the warranty has expired, an estimate for the cost of the
repairs at standard rates will be provided. Upon receipt of
the owner’s approval to proceed, the instrument will be
repaired and returned.
IV
not covered under the terms of the warranty, or
September 2004
Introduction
The GE Infrastructure Sensing O2X1 oxygen trans mitt er (F igu re
1 below) accurately measures oxygen content in a gas mixture at
0 to 250,000 ppmv (25%), in six ranges. It is loop-powered from
a 9-28 VDC power source and provides data readings via a 4-20
mA analog output that is updated once per second. Programmed
information is stored in a nonvolatile memory.
Figure 1: The O2X1 Oxygen Transmitter
O2X1 Oxygen Transmitter 1
September 2004
Introduction (cont.)
The O2X1 is available as either an ambient air monitor or as a
process unit. The process units are easily installed by completing
the following steps:
• insert the oxygen sensor into the O2X1 transmitter
• connect the power to the transmitter
• calibrate the oxygen sensor
• attach the transmitter body to the sensor manifold with the
knurled slip nut
A variety of oxygen sensors can be used with the O2X1, but a
quick and easy calibration with ambient air must be performed
upon startup whenever a new sensor is installed.
This guide shows how to properly mount, wire, calibrate, and
adjust the O2X1 oxygen transmitter. Proceed to the appropriate
section for information on the following topics:
Note: The installation instructions in this manual apply only to
O2X1 process
units.
• Mounting the Transmitter
• Wiring the Transmitter
• Installing an Oxygen Sensor
• Entering and Exiting the User Program
• Programming and Calibrating the O2X1
• Specifications
• Electrical Classification/Certification
2 O2X1 Oxygen Transmitter
September 2004
Mounting the Transmitter
T o install the O2X1 oxygen transmitter into the process or sample
system, refer to Figure 2 below and proceed to the next page.
Connector Key
Black: Return (-)
2.75 [70]
Red: Signal (+)
Transmitter Module
LEDs
7.26 [184]
Knurled Nut
Oxygen Sensor
Manifold
1/8 NPT Thread
2.24 [57]
0.50 [13]
8-32 UNC-2B
.30 Deep, 2 Plcs.
1.00 [25]
Figure 2: Outline and Installation Drawing
(316 SS and Delrin Process Units)
O2X1 Oxygen Transmitter 3
September 2004
Mounting the Transmitter (cont.)
Note: To avoid collecting condensate that may damage the
oxygen sensor, mount the O2X1 in an upright position,
with the sensor manifold below the electronics module.
Install the O2X1 transmitter by completing the following steps:
1. Remove the O2X1 transmitter and the separately-packaged
oxygen sensor (see Figure 3 below) from the shipping
container. Keep the shipping container and packaging material
for possible future use.
Figure 3: Packaged Oxygen Sensor
4 O2X1 Oxygen Transmitter
September 2004
Mounting the Transmitter (cont.)
2. Using Teflon tape as a sealant, connect the sample gas inlet
and outlet to the 1/8” NPT ports on the sensor manifold (see
Figure 4 below). Either port may be used as the inlet or the
outlet; the direction of flow does not matter.
Sensor Manifold
Sample Inlet Sample Outlet
Teflon Tape
Figure 4: Sensor Manifold Installation
O2X1 Oxygen Transmitter 5
September 2004
Wiring the Transmitter
T o wire the O2X1 oxygen transmitter refer to F igure 5 on the next
page and Figure 6 on page 8. Then, proceed as follows:
!WARNING!
For FM/CSA/BASEEFA certified applications, the O2X1
must be installed with a zener barrier (see Figure 5 on
the next page). Also, for installations in a hazardous
location, the blue OCI (5) T5 cable must be used.
1. A standard 5 ft long, two-wire cable is supplied with the
O2X1. Screw the cable’s five-pin connector to the mating
connector on the O2X1 unit.
Note: Longer cables are available for quotation.
2. Connect the other end of the cable according to one of the
following steps:
a. No Zener Barrier: Attach the red wire to the positive
terminal of a 9-28 VDC power supply. Attach the black
lead to the negative terminal of the power supply.
b. With Zener Barrier: Attach the red and black wires to the
zener barrier, as shown in Figure 6 on page 8.
Making a Custom Transmitter Cable
T o construct a transmitter cable longer than the one supplied with
the unit (up to a maximum of 1,100 ft), refer to Note 1 in Figure 5
on the next page and the specifications on pages 24 and 25.
Solder the two leads on one end of the cable to the connector
provided by GE Infrastructure Sensing. For the pin connections
on the transmitter, see Figure 2 on page 3.
Note: The orientation of the connector depends on how the
transmitter is installed. Use the connector key shown in
Figure 2 on page 3 as a reference when making lead
connections.
6 O2X1 Oxygen Transmitter
Wiring the Transmitter (cont.)
September 2004
HAZARDOUS LOCATION
(CLASS I, II, III, DIV 1, GROUP A, B, C, D, E, F, G)
See Note 1
O2X1
NON-HAZARDOUS LOCATION
MTL706
BARRIER
(SEE NOTE 2)
NOTE 4
SEE
1. Cable Requirements
A.FM Approved Installations
inductance due to the cable cannot exceed the following
values:
Group A, B
0.068 µF 0.30 µF0.90 µF
4.0 mH 18 mH 35 mH
B.CSA Installations
- Refer to the Canadian Electrical Code for
allowable cable parameters and lengths.
2. Barriers must be installed in accordance with the barrier
manufacturer’s specifications
3. Installations should be in accordance with ANSI RP12.6,
“Installations of Intrinsically Safe Systems for Hazardous
(Classified) Locations” and the National Electrical Code
(ANSI/NFPA 70).
4. Control room equipment connected to the associated apparatus
(barrier inputs) must not use or generate more than 250 V.
5. CSA installations must be installed in accordance with the
Canadian Electrical Code, Part 1.
6. WARNING - SUBSTITUTION OF COMPONENTS MAY
IMPAIR SAFETY.
AVERTI SSEMENT - LA S UBSTITUTI ON DE COMPOSANTS
PEUT COMPROMETTRELA SECURITE INTRINSIQUE
(per Drawing #752-099)
- Total cable capacitance and
Group C, E Group D, F, G
Figure 5: Typical Certification Requirements for
316 SS Process Unit Installations
O2X1 Oxygen Transmitter 7
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