Name: 04 Series – Single Gas Monitors
Brand: RKI Instruments

Overview

The 04 Series single gas monitor is designed to operate for many years with field replaceable sensors and filters.The 04 Series can be operated continuously for up to 9,000 hours on (2) AAA size alkaline batteries (depending on model). The 04 Series has 3 preset alarms that are user adjustable. Each version is also equipped with visual, audible, and vibration alarms as standard.

The replacement sensors are inexpensive, easily field replaceable, and are interchangeable with other popular RKI instruments like the GX-3R, GX-3R Pro, and GasWatch 3. Sensors have a life expectancy of over 3 years and are backed by a 3 year warranty.*

Each 04 Series monitor is impact, dust, and water resistant with an IP-67 ingress protection rating. 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)

Application

Hazardous material
Mining
Refineries / petrochemical
Water / wastewater treatment
Pharmaceuticals
Utilities
Chemical plants
Fire services

Gases & Detectable Ranges

Gases & Detectable Ranges
Gas		Part # (Model)	Detection Range (Increments)	Accuracy Statement	Alarm Set Points	Continuous Operation
Hydrogen Sulfide (H2S)		73-0063 HS-04	0 – 200.0 ppm (0.1 ppm)	± 5% of reading or ± 2 ppm H2S	A1: 5 ppm	9,000 hours
					A2: 30.0 ppm
					A3: 100.0 ppm
					TWA 1.0 ppm
					STEL 5.0 ppm
Carbon Monoxide (CO)		73-0065 CO-04	0 – 2000 ppm (1 ppm)	± 5% of reading or ± 5 ppm CO	A1: 25 ppm	9,000 hours
					A2: 50 ppm
					A3: 1200 ppm
CO (-H2)		73-0067 CO-04C		± 5% of reading or ± 2 ppm CO	A3: 1200 ppm	6,200 hours
					TWA 25 ppm
					STEL 200 ppm
Oxygen (O2)		72-0018 OX-04	0 – 40% Vol. (0.1%)	± 0.5% O2	A1: 19.5 Vol.	3,000 hours
					A2: 18.0 Vol.
					A3: 23.5 Vol.
Dual Sensor	CO O2	73-0069 CX-04	CO 0 – 2000 ppm (1 ppm)	± 5% of reading or ± 2 ppm H2S	A1: 25 ppm	4,600 hours
					A2: 50 ppm
					A3: 1200 ppm
					TWA 25 ppm
					STEL 200 ppm
			O2 0 – 40% Vol. (0.1%)	± 0.5% O2	A1: 19.5 Vol.
					A2: 18.0 Vol.
					A3: 23.5 Vol.
Ammonia (NH3)		73-0077 SC-04	0 – 400.0 ppm (0.5 ppm)	± 10% of reading or ± 5 % of full scale	A1: 25.0 ppm	3,000 hours
					A2: 35.0 ppm
					A3: 300.0 ppm
					TWA 25.0 ppm
					STEL 35.0 ppm
Chlorine (Cl2)		73-0075 SC-04	0 – 20.00 ppm (0.05 ppm)		A1: 1.0 0 ppm
					A2: 2.0 0 ppm
					A3: 10.00 ppm
					TWA 0.50 ppm
					STEL 1.00 ppm
Hydrogen Cyanide (HCN)		73-0071 SC-04	0 – 30.0 ppm (0.1 ppm)		A1: 5.0 ppm
					A2: 10. 0 ppm
					A3: 30.0 ppm
					TWA 4.7 ppm
					STEL 10.0 ppm
Nitrogen Dioxide (NO2)		73-0073 SC-04	0 – 20.00 ppm (0.05 ppm)		A1: 2.0 ppm
					A2: 4. 0 ppm
					A3: 20.00 ppm
					TWA 0.50 ppm
					STEL 1.00 ppm
Phosphine (PH3)		73-0079 SC-04	0 – 20.00 ppm (0.01 ppm)		A1: 0.30 ppm
					A2: 0. 60 ppm
					A3: 1.00 ppm
					TWA 0.30 ppm
					STEL 1.00 ppm
Sulfur Dioxide (SO2)		73-0081 SC-04	0 – 100.00 ppm (0.05 ppm)		A1: 2.0 0 ppm
					A2: 5.0 0 ppm
					A3: 100.0 ppm
					TWA 2.00 ppm
					STEL 5.00 ppm

Specifications

Common Specifications
Sample Method	Diffusion
Response Time	T90 in 30 seconds
Alarm Types	Gas alarm		Trouble alarm
Alarm Types	1st, 2nd, and 3rd (user adjustable), OVER alarm, STEL, and TWA		Sensor connection, low battery, circuit failure,and calibration range error
Alarm Methods	Gas Alarm	Trouble Alarm		STEL / TWA
Alarm Methods	Flashing LED’s, intermittent buzzer, flashing gas value, and vibration	Flashing LED’s, intermittent buzzer, and display of error message		Flashing LED’s, intermittent buzzer, flashing gas value, and vibration
Datalogging	10 sec. intervals = 10 hrs. 5 min. intervals = 300hrs, 10 min. intervals = 600 hours
Datalogging	Instrument records alarms, alarm trends, gas readings, calibration & bump test history, instrument settings
Battery Options	Alkaline dry cell (2-AAA size)
Display	Digital LCD, gas name & concentration, auto backlighting during alarm, operation icon, battery icon
Operating Temp. & Humidity	-4°F to 122°F (-20°C ~ +50℃), 0- 90% RH non condensing
Dimensions	2.1” W x 2.64” H x 0.94” D (54 x 67 x 24 mm) 2.8 ounce (80g)
Enclosure	Dust and water resistant with IP-67 rating
Safety Rating	ATEX/IECEx approved. QPS classified, “C / US”, as intrinsically safe, Class I, Division 1, Groups A, B, C, D
Standard Accessories	• Rubber boot • Datalogging software • Alligator clip • Alkaline batteries
Optional Accessories	• Calibration cap • Wrist strap • Calibration kit • Belt clip • Datalogging download cable
Special Functions	Manual backlight for LCD (automatically lit during alarm), Peak hold, STEL & TWA
Warranty	3 year warranty (1 year for Ammonia and Chlorine)

Downloads

04 Series Software
Setup Program (version 06258)	Datalogging (version 06134)
04 Series User Setup Program Operator’s Manual	04 Series Data Logger Management Program Operator’s Manual

04 Series Datasheet & Manuals
04-Series Product Datatsheet
SC-04 Operator’s Manual	CO-04 Operator’s Manual	CX-04 Operator’s Manual
HS-04 Operator’s Manual	CO-04C Operator’s Manual	OX-04 Operator’s Manual
IrDA Cable Driver Installation Guide

Distributor Resources

04 Series Price List & Resources

(for Authorized Distributors)

04 Series – Single Gas Monitors

CO-04, HS-04, OX-04, SC-04

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