RKI Instruments CO-01 User manual

www.rkiinstruments.com
01 Series
Operator’s Manual
Part Number: 71-0093RK
Revision: A
Released: 2/2/11

01 Series Operator’s Manual
WARNING
Read and understand this instruction manual
before operating instrument. Improper use of the
gas monitor could result in bodily harm or death.
Periodic calibration and maintenance of the gas
monitor is essential for proper operation and cor-
rect readings. Please calibrate and maintain this
instrument regularly! Frequency of calibration
depends upon the type of use you have and the
sensor types. Typical calibration frequencies for
most applications are between 1 and 3 months,
but can be required more often or less often
based on your usage.

01Series Operator’s Manual Warranty
Warranty RKI Instruments, Inc. warrants the 01 Series Single Gas Monitor sold by us
to be free from defects in materials, workmanship, and performance for a
period of two (2) years from the date of shipment from RKI Instruments,
Inc. This includes the instrument and the original sensor. Replacement
parts are warranted for one (1) year from the date of their shipment from
RKI Instruments, Inc. Any parts found defective within their warranty period
will be repaired or replaced, at our option, free of charge. This warranty
does not apply to those items, which by their nature, are subject to
deterioration or consumption in normal service, and which must be
cleaned, repaired, or replaced on a routine basis. Examples of such items
are as follows:
Warranty is voided by abuse including mechanical damage, alteration,
rough handling, or repair procedures not in accordance with the instruction
manual. This warranty indicates the full extent of our liability, and we are
not responsible for removal or replacement costs, local repair costs,
transportation costs, or contingent expenses incurred without our prior
approval.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER WARRANTIES
AND REPRESENTATIONS, EXPRESSED OR IMPLIED, AND ALL OTHER OBLIGATIONS
OR LIABILITIES ON THE PART OF RKI INSTRUMENTS, INC. INCLUDING BUT NOT
LIMITED TO THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. INNO EVENT SHALL RKI INSTRUMENTS, INC. BE LIABLE
FOR INDIRECT, INCIDENTAL, OR CONSEQUENTIAL LOSS OR DAMAGE OF ANY KIND
CONNECTED WITH THE USE OF ITS PRODUCTS OR FAILURE OF ITS PRODUCTS TO
FUNCTION OR OPERATE PROPERLY.
This warranty covers instruments and parts sold to users only by
authorized distributors, dealers, and representatives as appointed by RKI
Instruments, Inc.
We do not assume indemnification for any accident or damage caused by
the operation of this gas monitor and our warranty is limited to replacement
of parts or our complete goods.
Absorbent cartridges
Filter elements, disks, or sheets
Pump diaphragms and valves

Table of Contents 01 Series Operator’s Manual
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Protective Rubber Boots. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Alligator & Belt Clips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Membrane Retainer/Sensor Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Charcoal Filter Disk in CO-01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Sensor Retainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
LCD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Control Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Printed Circuit Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Alarm Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Buzzer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Vibrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Start Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Start-up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Performing a Fresh Air Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Turning Off the 01 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Measuring Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Displaying the Peak, STEL, and TWA (CO-01 and HS-01) . . . . . . . . . . . . . . . . 11
Displaying the Min and Max (OX-01) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Alarm Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Displaying and Adjusting the Alarm Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Calibration Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Setting the Fresh Air Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Setting the Span Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

01Series Operator’s Manual Table of Contents
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Replacing the Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Replacing the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Replacing the Sensor Cover and Charcoal Filter . . . . . . . . . . . . . . . . . . . . . . . . 25
Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
WARNING: Understand this manual before operating the 01 Series.
Substitution of components may impair intrinsic safety.
To prevent ignition of a hazardous atmosphere, batteries
must only be changed in an area known to be
nonhazardous. This unit has not been tested in an
oxygen enriched atmosphere (above 21%).

1 • Introduction 01 Series Operator’s Manual
Introduction
Using an advanced microprocessor controlled detection system, the 01
Series Personal Single Gas Monitor detects the presence of either carbon
monoxide (CO), hydrogen sulfide (H2S), or oxygen (O2). The 01 Series’s
compact size and easy-to-use design makes it ideally suited for a wide
range of applications, including sewage treatment plants, tunnels,
hazardous waste sites, petrochemical facilities, oil fields, mines, and
chemical plants. The 01 Series is even small enough to be placed
conveniently in a pocket. The 01 Series offers the following features:
• Compact design
• Fast, accurate response with digital liquid crystal display (LCD)
• Visual, audible, and vibration alarms
• Microprocessor control for reliability, ease of use, and advanced
capabilities
• Peak, STEL, and TWA indication for CO-01& HS-01
• Minimum and maximum indication for OX-01
• Over range alarm
• Gas, battery, sensor failure, and system failure alarms
• Over 3,000 hours operation on one set of alkaline batteries
• CSA certified for intrinsic safety in Class I, Division I, Groups A, B, C,
and D hazardous atmospheres
• Low temperature operation down to -40 °C with the HS-01S
WARNING: The 01 Series detects oxygen deficiency and elevated
levels of oxygen, carbon monoxide, and hydrogen
sulfide, all of which can be dangerous or life threatening.
When using the 01 Series, you must follow the
instructions and warnings in this manual to assure
proper and safe operation of the unit and to minimize the
risk of personal injury. Be sure to maintain and
periodically calibrate the 01 Series as described in this
manual.

01Series Operator’s Manual Specifications • 2
Specifications
Table 1: 01 Series Specifications
CO-01 HS-01/HS-01S OX-01
Target Gas Carbon Monoxide
(CO) Hydrogen Sulfide (H2S) Oxygen (O2)
Detection Range 0 to 500 ppm 0 to 100.0 ppm 0 to 40.0% vol.
Display Increment 1 ppm 0.5 ppm 0.1% vol.
Detection
Principle Electro Chemical Electro Chemical Galvanic Cell
Alarm Points Low 25 ppm
High 50 ppm
TWA 25 ppm
STEL 200 ppm
Low 10.0 ppm
High 30.0 ppm
TWA 10.0 ppm
STEL 15.0 ppm
Low 19.5% vol.
(decreasing)
High 23.5% vol.
(increasing)
Sampling Method Diffusion Diffusion Diffusion
Response Time T90 in 30 seconds T90 in 30 seconds T90 in 20 seconds
Accuracy ±5% of reading or
± 5 ppm CO
(whichever is
greater)
±5% of reading or
± 2 ppm H2S
(whichever is
greater)
± 0.5% O2
Indication 7-Segment Digital LCD
Safety/Regulatory
C US
186718
CSA classified, “C/US”, as Intrinsically Safe. Exia. Class I,
Groups A, B, C, & D. Temperature Code T3.
Power Two AAA size Alkaline Batteries Standard, Duracell MN2400
or PC2400, Eveready Energizer E92 or EN92
Continuous
Operating Hours • At 25 °C, All Models: Over 3,000 Hours, No Alarms or Backlighing
• At -40 °C, HS-01S: 1,500 Hours, No Alarms or Backlighting
Case High-impact Plastic, Dust and Weather Proof
Standard
Accessories • Wrist Strap
• Rubber protective boots

3 • Specifications 01 Series Operator’s Manual
Optional
Accessories • Calibration Adapter
• Calibration Kit
• Alligator Clip
• Belt Clip
Dimensions and
Weight 1.4” (35mm) W x 4.1” (104mm) H x 0.8” (20mm) D; 3.5 oz. (100 g)
OperatingTemp.&
Humidity • CO/HS/OX-01: -20°C to +50°C, below 90% RH (non
condensing)
• HS-01S: -40°C to +50°C, below 90% RH (non
condensing)
Table 1: 01 Series Specifications
CO-01 HS-01/HS-01S OX-01

01Series Operator’s Manual Description • 4
Description
This section describes the components of the 01 Series. These
components include the 01 Series’ protective rubber boots, case,
membrane retainer and filter disks, sensor retainer, sensor, LCD, control
buttons, printed circuit boards, alarm lights, buzzer, vibrator, and batteries.
LCD
Control Buttons
Alarm Lights
Buzzer Opening Membrane
Retainer Sensor
Retainer
Battery Cover
Battery Charging
Contacts
POWER
MODE
AIR
CO-01
CO
Sensor En
d
Boot
Battery End
Boot
Threaded
Inserts
Figure 1: Components of the 01 Series

5 • Description 01 Series Operator’s Manual
Protective Rubber Boots
A protective rubber boot is installed over each end of the 01 Series. The
sensor end boot fits over the sensor cover end of the 01 Series and the
battery end boot fits over the battery cover end of the 01 Series.
Case
The 01 Series’ sturdy, high-impact plastic case is blue in color. The case is
suitable for use in many environmental conditions, indoors and out. The
unit is dust proof and weather resistant.
The front of the case has an LCD (liquid crystal display) that shows various
readings, which are described under “LCD” in this section. To the left of the
LCD is an alarm light. Below the LCD are two black control buttons. The left
button is labeled “POWER/MODE” and the right button is labeled “AIR”.
On top of the case and to the left is the 01 Series’s buzzer, which is located
inside the unit. To the right of the buzzer is the sensor. The sensor is held in
place by the sensor retainer (the top of the case for the 01 Series) and two
screws. The sensor is protected from dirt and moisture by the sensor cover.
The sensor cover is secured by a membrane retainer and a single screw. In
the case of the CO-01, a charcoal filter is provided under the sensor cover
to protect the CO sensor from hydrogen sulfide and certain hydrocarbons.
To the left of the sensor and below the buzzer, is a second alarm light,
which is also visible from the front of the case.
The battery compartment is located on the bottom of the case. Access to
the compartment is accomplished by turning the captive battery cover
screw counterclockwise and by removing the battery compartment door.
There are two threaded holes on the back of the case. These are used to
mount the optional alligator clip or belt clip.
Toward the bottom of the back are two battery charging contacts. These
contacts are used to charge a Ni-cad battery pack which is available.
Consult RKI Instruments, Inc. for information about this option.
The wrist strap connects to the back of the case on the left side, near the
top of the unit.