SENSIT® Calibration Kit: CH4/CO - 21 L Included Cylinder Volume

Features

• Gas Types: Methane (CH₄) and Carbon Monoxide (CO).
• Included Cylinder Volume: 21 L combo cylinder (CH₄ + CO).
• Included Components: Flow regulator, hose assembly, NIST‑traceable span gases, non‑refillable cylinders.
• Approximate Calibrations: Performs 30–40 calibrations per 21 L cylinder.
• Application: Multi‑gas detector calibration and bump testing.
• UNSPSC: 12142208 – Calibration sources.
• Shipping Weight: 2 lbs.
• Compliance: Hazardous Material – Non‑Flammable Gas; restricted in certain countries/international sales.

What is it?

This kit is a portable, NIST‑traceable calibration gas system designed to verify and adjust the CH₄ (combustible/LEL) and CO channels on compatible multi‑gas detectors. It includes a 21 L certified combo cylinder of methane and carbon monoxide, along with a flow regulator and hose assembly for accurate detector span checks and bump tests

How is it used?

1. Zero the detector in clean air according to your instrument manual.
2. Attach the flow regulator to the 21 L CH₄/CO cylinder.
3. Connect the hose assembly to the detector’s calibration adapter.
4. Apply the CH₄/CO span gas to verify sensor response and adjust readings if required.
5. Repeat for bump tests, which confirm alarms and basic response before each use.
6. Replace cylinder after ~30–40 complete calibrations.

Who uses it?

• First responders, fire service, and HAZMAT teams using CH₄/CO detection to support leak investigation and atmospheric monitoring.
• Utilities, industrial maintenance, confined‑space entry crews, and safety technicians who must maintain operational readiness of CH₄/CO multi‑gas detectors.
• (General usage inferred from gas detector calibration kit category; calibration kit pages emphasize use with SENSIT Gold G2 and Trak‑It IIIa instruments.)

Maintenance Information

• Perform daily bump tests and full calibrations as required or after sensor exposure events.
• Track cylinder expiration dates and lot numbers for NIST‑traceable gases.
• Inspect regulator fittings and replace tubing if worn or contaminated.
• Handle cylinders as hazardous, non‑flammable gas materials per shipping and storage guidelines

What is it used with?

• Compatible with SENSIT Gold G2 combustible gas detectors and Trak‑It IIIa multi‑gas indicator

What is tested and how is it tested?

CH₄ (Methane) Channel

• Verifies combustible/LEL sensor response by applying a known concentration of methane.
• Confirms alarm activation and correct reading behavior.

CO (Carbon Monoxide) Channel

• Applies a certified CO concentration to check sensitivity and alarm thresholds.
• Adjusts detector span if readings deviate from the certified concentration.

Traceability

All included span gases are NIST‑traceable, meaning the concentration is linked by an unbroken chain to national standards with documented uncertainty.

Testing Method

• Zero in clean air → Apply CH₄/CO span gas → Observe stabilization → Adjust calibration → Perform bump test for functional verification.