Home / Products / Gas Detectors / Portable Gas Detectors / Single Gas Detector / 04 Series

Single Gas Detector

04 Series

SC-01

FI-8000

SP-220

FP-31

SC-8000

GX-8000

03 Series

04 Series

The Personal single gas monitors Model 04 series are designed for long life as they have user replaceable sensors and filters. They can be operate nonstop up to 9,000 hours using 2 nos of AAA Alkaline batteries. Rechargeable versions also available. 04 Series Models have Audio, Visual and Vibration Alarms. User Adjustable 3 preset alarms are standard.

Changing sensors is quick, easy and inexpensive for user. Riken uses same series of sensors for 04 series, GX-3R & GX-3R Pro. Sensors come with 3 years manufacturer’s warranty*.

04 Series monitors are IP-67 certified. 04 Series instruments are safe for use in hazardous locations, classified as intrinsically safe ATEX/IECEx and by QPS to U.S. and Canadian standards for Class I, Division 1, Groups A, B, C, and D atmospheres.

* 3 year warranty on material and workmanship including sensors (1 year warranty for Ammonia and Chlorine sensors)

Individual Model Specifications

Specification
Accessories

Common Specifications

Sampling Method	Diffusion Type
Alarm Type	Gas 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)
Explosion Proof Construction	Intrinsically safe explosion-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	Oxygen	Oxygen	Hydrogen Sulfide	Carbon monoxide	Carbon Monoxide (Hydrogen interference reduction)	Carbon Monoxide	Oxygen
Detection Principle	Galvanic cell type	Electrochemical Type
Display Range	0.0-40.0 %	0.0-40.0 %	0.0-200.0 ppm	0-2,000 ppm	0-2,000 ppm	0-2,000 ppm	0.0-40.0 %
Detection Range	0.0 - 25.0 %	0.0 - 25.0 %	0.0 100.0 ppm	0-500 ppm	0-500 ppm	0-500 ppm	0.0-25.0%
Resolution	0.1 %	0.1 %	0.1 ppm (0.0-30.0 ppm) 1.0 ppm (30.0-200.0 ppm)	1 pmm (0-300 ppm) 10 ppm (300-2,000 ppm)	1 pmm (0-300 ppm) 10 ppm (300-2,000 ppm)	1 pmm (0-300 ppm) 10 ppm (300-2,000 ppm)	0.1 %
Alarm Setpoints	L 18.0 % LL 18.0 % H 25.0 % OVER 40.0%	L 18.0 % LL 18.0 % H 25.0 % OVER 40.0%	1st 50 ppm 2nd 30.0 ppm 3rd 100.0 ppm TWA 1.0 ppm STEL 5.0 ppm OVER 200.00 ppm	1st 25ppm 2nd 50 ppm 3rd 1,200 ppm TWA 25 ppm STEL 200 ppm OVER 2,000 ppm	1st 25ppm 2nd 50 ppm 3rd 1,200 ppm TWA 25 ppm STEL 200 ppm OVER 2,000 ppm	1st 25ppm 2nd 50ppm 3rd 1,200 ppm TWA 25 ppm STEL 200 ppm OVER 2,000 ppm	L 18.0 % LL 18.0 % H 25.0 % OVER 40.0%
Response time T90 (*3)	Within 20 seconds (Typical: 9 seconds)	Within 20 seconds (Typical: 8 seconds)	Within 30 seconds (Typical: 18 seconds)	Within 30 seconds (Typical: 6 seconds)	Within 30 seconds (Typical: 17 seconds)	Within 30 seconds (Typical: 7 seconds)	Within 30 seconds (Typical: 15 seconds)
Operating Temperature Range	-20 °C - +50 °C (no sudden fluctuations)	-40 °C - +60 °C (no sudden fluctuations)*4
Operating Humidity Range	10 - 90 % RH (no condensation)	0 - 95 %RH (no condensation)*5
Continuous Operating Time (dry cell batteries) (Ni-MH batteries)	Approx. 9,000 hours Approx. 6,000 hours	Approx. 3,000 hours Approx. 2,000 hour	Approx. 9,000 hours Approx. 6,000 hours	Approx. 9,000 hours Approx. 6,000 hours	Approx. 6,200 hours Approx. 4,200 hours	Approx. 4,600 hours Approx. 3,000 hours

Model	SC-04 (SO₂)	SC-04 (NO₂)	SC-04 (HCN)	SC-04 (PH₂)	SC-04 (NH₂)	SC-04 (CI₂)
Detection Target Gas	Sulfur dioxide	Nitrogen dioxide	Hydrogen cyanide	Phosphine	Ammonia	Chlorine
Detection Principle	Electrochemical Type
Display Range	0.00-100.00 ppm	0.00-20.00 ppm	0.0-30.0 ppm	0.00-20.00 ppm	0.0-400.0 ppm	0.00-20.00 ppm
Detection Range	0.00-20.00 ppm	0.00-20.00 ppm	0.0-30.0 ppm	0.00-20.00 ppm	0.0-300.0 ppm	0.00-10.00 ppm
Resolution	0.05 ppm	0.05 ppm	0.1 ppm	0.01 ppm	0.5 ppm	0.05 ppm
Alarm Setpoints	1st 2.00 ppm 2nd 500. ppm 3rd 100.00 ppm TWA 2.00 ppm STEL 5.00 ppm OVER 100.00 ppm	1st 2.00 ppm 2nd 4.00 ppm 3rd 20.00 ppm TWA 0.50 ppm STEL 1.00 ppm OVER 20.00 ppm	1st 10.0 ppm 2nd 20.0 ppm 3rd 30.0 ppm TWA 0.9 ppm STEL 4.5 ppm OVER 30.0 ppm	1st 0.30 ppm 2nd 0.60 ppm 3rd 1.00 ppm TWA 0.30 ppm STEL 1.00 ppm OVER 20.00 ppm	1st 25.0 ppm 2nd 50.0 ppm 3rd 300.0 ppm TWA 25.0 ppm STEL 35.0 ppm OVER 400.0ppm	1st 1.00 ppm 2nd 2.00 ppm 3rd 10.00 ppm TWA 0.50 ppm STEL 1.00 ppm OVER 20.00 ppm
Response time T90 (*3) Range	Within 30 seconds (Typical: 9 seconds)	Within 30 seconds (Typical: 6 seconds)	Within 90 seconds (Typical: 36 seconds)	Within 30 seconds (Typical: 6 seconds)	Within 90 seconds (Typical: 30 seconds)	Within 90 seconds (Typical: 36 seconds)
Operating Temperature Range	-40 °C - +60 °C (no sudden fluctuations)*4		-20 °C - +60 °C (no sudden fluctuations)*4	-40 °C - +60 °C (no sudden fluctuations)*4	-30 °C - +50 °C (no sudden fluctuations)*4	-40 °C - +60 °C (no sudden fluctuations)*4
Operating Humidity Range	0 - 95 %RH (no condensation)*5
Continuous Operating Time (Alkaline batteries) (Ni-MH batteries)	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