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SKU: RKI01-73-0071

RKI Instruments SC-04 Series HCN Single Gas Monitor 73-0071

$606.67

Ships in 3 - 4 days

Description

RKI Instruments SC-04 Series HCN Single Gas Monitor is a single-gas toxic personal monitor designed to operate for many years with field replaceable sensors and filters. With a protective rubber boot and an IP-67 rating, the SC-04 with a 3-year warranty is built for long-term use in demanding environments.

Applications: Hazardous material response, Mining, Refineries/petrochemical, Water/wastewater treatment, Pharmaceuticals, Utilities, Chemical plants, Fire services

Key Features:

Personal monitoring for HCN (hydrogen cyanide)
Operates 3,000 hours on replaceable alkaline batteries
Digital LCD readout
Easy power on/off via single Power Mode button
Pocket size: 2.1"(W) x 2.6"(H) x 0.9"(D)
Lightweight: 2.8 ounces
Impact, dust, and water resistant (IP-67)
Replaceable rubber boot
Alligator clip with 360° rotation
Data log: 10 to 600 hours with adjustable intervals
Audible / visual / vibration alarms
Automatic backlight
Low battery alarm
Intrinsically safe, ATEX and C/US approvals
3-year warranty on material and workmanship including sensors

Specifications:

Gas Detected: Hydrogen Cyanide (HCN)
Detection principle: Electrochemical
Detection range: 0 ~ 30.0 ppm (0.1 ppm resolution)
Alarm set points: 1st: 5.0 ppm, 2nd: 10.0 ppm, 3rd: 30.0 ppm, TWA: 4.7 ppm, STEL: 10 ppm
Alarm types: Gas alarms: 1st, 2nd, and 3rd (user adjustable), OVER alarm, STEL and TWA; Trouble alarms: Sensor connection, low battery, circuit failure, and calibration range error
Gas sampling: Diffusion
Response time: T90 in 30 seconds
Accuracy: ± 10% of reading or ± 5% of full scale
Data logging: 10-second intervals = 5 hours; 5-minute intervals = 150 hours; 10-minute intervals = 300 hours. Records alarms, alarm trends, gas readings, calibration & bump test history, instrument information and settings.
Continuous operation: 3,000 hours on alkaline dry cell (at 25°C, no backlight)
Safety rating: ATEX/IECEx approved; QPS classified C/US intrinsically safe, Class I, Division 1, Groups A, B, C, D
Enclosure: IP-67 dust and water resistant
Display: Digital LCD readout, gas name & concentration, auto backlighting during alarm, battery icon

Monitor Includes:

Rubber protective boot
Alkaline batteries (2-AAA size)
Alligator clip
Data log software

Optional Accessory: Downloading cable / USB–IrDA adapter

SC-04 Manual:

04 Series User Setup Program Operator's Manual:

04 Series Data Logger Management Program Operator's Manual:

Part Number:
73-0071

Related Searches
Gas Detection, Single-Gas Monitors

Frequently Asked Questions

What is the detection range of the RKI SC-04 HCN monitor?

The SC-04 HCN detects hydrogen cyanide from 0 to 30.0 ppm at 0.1 ppm resolution. Alarm setpoints are preset at 5.0 ppm (1st alarm), 10.0 ppm (2nd alarm), and 30.0 ppm (3rd alarm). TWA is set at 4.7 ppm and STEL at 10 ppm, consistent with OSHA's permissible exposure guidance for HCN.

How long does the battery last in the SC-04 HCN monitor?

Two standard AAA alkaline batteries power the SC-04 HCN for up to 3,000 hours of continuous operation at 25°C with the backlight off. Batteries are field-replaceable with no tools required, so the instrument never needs to be sent in for routine battery service.

Is the SC-04 HCN approved for use in classified hazardous areas?

Yes. The SC-04 HCN carries ATEX/IECEx certification and is QPS classified as intrinsically safe, Class I, Division 1, Groups A, B, C, D under C/US—suitable for use in explosive atmospheres. The IP-67 enclosure resists dust and water immersion.

Where is HCN exposure most common in the workplace?

Hydrogen cyanide is encountered in electroplating and metal finishing operations, chemical manufacturing, fumigation activities, and in smoke from structural fires. Workers in these industries should carry personal HCN monitors to remain within OSHA's permissible exposure limit during their shift.

Who services the RKI SC-04 HCN monitor?

PK Safety is an RKI Factory Authorized Service Center with the qualifications to replace SC-04 sensors, update firmware, and validate performance before returning instruments to service. We also service the full range of RKI portable monitors. Contact us at 800.829.9580.