PC0E-1051

Now incorporates new R sensor for durability
and advanced functions- The lineup offers various sensors and one of the world's longest continuous operating times -Portable gas monitor

Model04 Series

Model OX-04

Model OX-04G

Model HS-04

Detection target gas: Oxygen(electrochemical type)

Detection target gas: Oxygen(galvanic cell type)

Detection target gas: Hydrogen sulfide

Model CO-04

Model CO-04 (C-)

Model CX-04

Model SC-04

Detection target gas: Carbon monoxide

Detection target gas: Carbon monoxide(reduced hydrogen interference)

Detection target gas: Carbon monoxide
and oxygen

Detection target gas: Sulfur dioxide

Advanced functions and durability

1 Now with a continuous operating time of 9,000 hours

With these products, we’ve achieved continuous operating times of approximately 9,000 hours*, among the best figures for a compact portable multi gasmonitor.
* OX-04G/CO-04/HS-04

2 Passed 7 m drop resistance test

Reduces the risk of damage to the device when working in elevated locations for use with confidence.

3 Incorporates durable new R sensor with advanced functions• Completely upgraded sensors. The sensor’s superior durability and performance are backed by a three-year warranty (one year sensor warranty for OX-04G).
• Usable across a wide range of temperatures (-40 °C to +60 °C).
• We offer a lineup of carbon monoxide sensors almost entirely resistant to hydrogen interference. They’re ideal for use in environments like steel facilities
where hydrogen is present.
• We’re the first Japanese manufacturer to offer a lineup of dual carbon monoxide and oxygen sensors, bringing two-channel detection to the market in acompact and portable form factor.

Full range of functions in a safe, secure design

1 A safe design you can use anywhere

Attached to belt

Attached to breast pocket• Protection level: Equivalent to IP66/67; designed to resist dust and water for confident use outdoors• Intrinsically safe explosion-proof design (ATEX/IECEx/Japan Ex) for use in hazardous locations

2 Device power options include rechargeable or alkaline batteries

Select the convenience of universally available alkaline batteries. Or use rechargeable batteries overand over. (Specify type when submitting order.)RIKEN KEIKI CO., LTD.

Common specifications
Sampling method

Diffusion type

Alarm typeGas alarms: Three-step alarms, STEL alarm, TWA alarm, OVER alarm
Fault alarms: Sensor connection/disconnection, low battery level, calibration failure, clock abnormality, system abnormality

Alarm pattern

Self-latching or auto-reset (*1)

Alarm indications

Flashing lamp, intermittent audible buzzer, flashing gas concentration readout, vibration

Buzzer volume

80 dB or louder (at 30 cm)

Power source*2

AAA alkaline batteries (×2) or AAA Ni-MH (eneloop) batteries (×2)

Intrinsically safe explosion-proof constructionExplosion-proof construction ＜alkaline batteries＞ATEX: II1G Ex ia IIC T4 Ga/IECEx: Ex ia IIC T4 Ga/Japan Ex: Ex ia IIC T4 Ga＜Ni-MH batteries＞ATEX: II1G Ex ia IIC T3 Ga/IECEx: Ex ia IIC T3 Ga/Japan Ex: Ex ia IIC T3 Ga
Certifications

ATEX, IECEx, Japan Ex, CE Marking

Protection level

Equivalent to IP66/67

External dimensions/weight

Approx. 54 mm (W) × 67 mm (H) × 24 mm (D) (excluding projections)/approx. 93 g

Functions

Data logger, vibration, STEL alarm, TWA alarm, quick calibration, peak value display, temperature display

Individual model specifications
Model

OX-04G

OX-04

HS-04

CO-04

CO-04(C-)

CX-04

Detection
target gas

OxygenOxygenHydrogensulfideCarbonmonoxide

Carbon monoxide(Reduced hydrogeninterference)

Detection
principle

Galvanic
cell type

Alarm setpoints

OxygenSulfur dioxide

Electrochemical type

0.0 to 30.0 ppm
0 to 500 ppm
0 to 500 ppm
Detection range 0.0 to 25.0 %0.0 to 25.0 %(Service range) (25.0 to 40.0 %) (25.0 to 40.0 %) (30.0 to 200.0 ppm) (500 to 2000 ppm) (500 to 2000 ppm)

1 digit

Carbonmonoxide

SC-04

0 to 500 ppm(500 to 2000 ppm)

0.00 to 20.00 ppm
0.0 to 25.0 %(20.00 to(25.0 to 40.0 %)100.00 ppm)

0.1 %

0.1 %

0.1 ppm(0.0 to 30.0 ppm)
1.0 ppm(30.0 to 200.0 ppm)

1 ppm
(0 to 300 ppm)
10 ppm(300 to 2000 ppm)

1 ppm
(0 to 300 ppm)
10 ppm(300 to 2000 ppm)

1 ppm
(0 to 300 ppm)
10 ppm(300 to 2000 ppm)

0.1 %0.05 ppm

L 18.0 %LL 18.0 %H 25.0 %L 18.0 %LL 18.0 %H 25.0 %1st 5.0 ppm
2nd 30.0 ppm
3rd 100.0 ppmTWA 1 ppm
STEL 5 ppm

1st25 ppm
2nd50 ppm
3rd 1200 ppm
TWA25 ppm
STEL 200 ppm

1st25 ppm
2nd50 ppm
3rd 1200 ppm
TWA25 ppm
STEL 200 ppm

1st25 ppm
2nd50 ppm
3rd 1200 ppm
TWA25 ppm
STEL 200 ppm

L 18.0 %LL 18.0 %H 25.0 %1st2 ppm
2nd5 ppm
3rd100 ppm
TWA2 ppm
STEL5 ppm

Operatingtemperaturerange-20 °C to +50 °C(no sudden changes)-40 °C to +60 °C (no sudden changes)*3

Operatinghumidity range

10 to 90 % RH(no condensation)

0 to 95 % RH (no condensation)*4

Continuous
operating time Approx. 9,000 hours Approx. 3,000 hours Approx. 9,000 hours Approx. 9,000 hours Approx. 6,200 hours(Alkaline batteries) Approx. 6,000 hours Approx. 2,000 hours Approx. 6,000 hours Approx. 6,000 hours Approx. 4,200 hours(Ni-MH batteries)

Approx. 4,600 hours
Approx. 3,000 hours

Approx. 3,000 hours
Approx. 2,000 hours*1. Standard setting: Self-latching*2. Use dry-cell batteries listed on the Certificate to meet the explosion-proof performance.
*3. Temporary ambient conditions for approx. 15 minutes. The continuous operating ambient temperature ranges are as follows: temperature: -20 °C to +50 °C (no sudden changes)*4. Temporary ambient conditions for approx. 15 minutes. The continuous operating ambient humidity ranges are as follows: humidity: 10 to 90 % RH (no condensatioxxn)

Accessories

Optional accessoriesu AAA alkaline (×2) or Ni-MH (eneloop) batteries (×2) (specify at time of order)u Belt clipu Rubber protection cover (×1)

u Heat-resistant case*5 u Calibration cap u Data logger management programu Other filters

u Arm bandu Alligator clip (×1)

u Dust filter

u Hand strap*5. This cover is non-explosion proof.

Distributed by:
2 -7-6 Azusawa, Itabashi-ku, Tokyo 174 - 8744, Japan

Phone : +81-3-3966-1113
Telefax : +81-3-3558-9110
E-mail : intdept@rikenkeiki.co.jp
Web site : http://www.rikenkeiki.co.jp/english※ The contents described in this catalog are

subject to change without notice according
to the performance improvement.

PC0E-1051-200430 S