Sensit® Calibration Kit - CH4/CO/H2S - 0.5 lpm Max Flow Rate

Features

• Gas types: Methane (CH₄), Carbon Monoxide (CO), Hydrogen Sulfide (H₂S).
• Included components: Carrying case, fixed‑flow regulator, hose assembly, NIST‑traceable span gas cylinders (non‑refillable)
• Cylinder volumes: One 58 L H₂S cylinder and one 103 L combo cylinder (CH₄ + CO).
• Typical calibrations per cylinder: ~60–80 (58 L) and ~150–200 (103 L), depending on flow rate and procedure.
• Max flow rate: 0.5 LPM (kit regulator).
• Application: Portable multi‑gas detector calibration & bump testing.
• UNSPSC: 12142208 (Calibration sources).
• Shipping/handling: Hazardous Material – Non‑Flammable Gas; international restrictions may apply.

What is it?

A portable calibration gas kit for field and bench maintenance of compatible multi‑gas detectors. It packages certified, NIST‑traceable span gases with a compatible fixed‑flow regulator (0.5 LPM), hose, and carrying case, enabling accurate span calibrations and quick bump tests for CH₄/CO/H₂S channels.

• About NIST traceability: In gas calibration, “NIST‑traceable” means the gas composition is linked by an unbroken, documented chain to national standards with stated uncertainties (often via SRMs/NTRMs), ensuring comparable measurements across sites and time.

How is it used?

1. Zero the instrument in clean air per your detector manual.
2. Attach the 0.5 LPM fixed‑flow (or demand‑flow) regulator to the appropriate cylinder (CH₄/CO combo or H₂S). Connect the hose to the detector’s calibration cap.
3. Apply span gas to each sensor channel at the stated concentration/flow until readings stabilize; adjust the instrument per its procedure.
4. Perform a bump test as needed between calibrations to verify alarms/response. (ISEA and major OEMs recommend a bump test before each day’s use.

• Note on flow: 0.5 LPM is a common market standard for portable gas detector calibration; many pumped instruments also support demand‑flow regulators that supply only what the pump draws. Always follow your detector’s specific SOP.

Who uses it?

• Fire service & HAZMAT teams performing confined‑space entry and gas‑leak response.
• Public safety, utilities, and industrial response crews who maintain multi‑gas detectors to ensure accurate CO, H₂S, and combustible gas readings during emergency operations.

Maintenance information

• Calibration frequency: Follow your instrument manufacturer’s manual; conduct daily bump checks and calibrate after sensor exposure events or if a bump test fails.
• Gas management: Track expiration dates/lot numbers on cylinders and store them per supplier guidance; typical specialty gas cylinders include NIST traceability documentation and expiration.
• Regulators & tubing: Inspect O‑rings/fittings; use C‑10 (5/8‑18 UNF) compatible regulators for 58 L/103 L cylinders. Replace tubing if cracked or contaminated.

What is it used with?

• Designed for SENSIT® GOLD G2 multi‑gas detectors and TRAK‑IT® IIIa gas indicators (compatible calibration gases and kits are cited across reseller references). Always verify with your detector’s manual/configuration.
• General procedure aligns with multi‑gas detector calibration practices from leading OEMs (Honeywell/MSA/Emerson) that employ 58 L or 103 L cylinders and fixed/demand regulators.

What is tested and how is it tested?

• Detector channels tested:
  • Combustible gas (CH₄/LEL) – apply certified methane span mix to verify LEL/ppm response
  • CO (electrochemical) – apply certified ppm CO span gas to adjust zero/span accuracy.
  • H₂S (electrochemical) – apply certified ppm H₂S span gas to validate sensitivity/alarms.
• Method:
  • Zero calibration in clean air or zero gas.
  • Span calibration with NIST‑traceable reference gases at known concentrations.
  • Bump test to verify alarms. Procedures follow ISO/IEC‑aligned SOPs and OEM manuals.
  • Traceability: Gas mixtures are prepared and certified against national standards; NIST defines traceability as an unbroken chain of comparisons with stated uncertainty, commonly realized via SRMs/NTRMs and EPA Protocol gas programs.

What's Included

• Carrying Case
• Flow Regulator
• Hose Assembly
• NIST Traceable Span Gases
• Non-Refillable Cylinders