Walk-In Freezer Mapping & Validation Services
Defrost cycles are the freezer’s secret life — mapping catches what they do to your product zones.
ACS Calibration delivers NIST-traceable, audit-ready walk-in freezer mapping services, available at the ACS central lab or directly on-site at facilities across the Southeast. Temperature from -196 °C to 420 °C, infrared to 500 °C, and humidity from 30 to 75 %RH are on our accredited scope, so ISO/IEC 17025 accredited certificates are available on request.
Temperature & Humidity Instruments We Calibrate
From cryogenic checks to furnace controllers — if it reads degrees or percent RH, we can almost certainly handle it.
Frequently serviced brands: Traceable (Control Company), Gemini Tinytag, T&D, MadgeTech, Fluke, ThermoWorks, LogTag, and ThermoPro — plus dozens more.
Cold Enough, Everywhere, Even Mid-Defrost
Walk-in freezers cycle through defrost events that briefly reshape the whole thermal map — and product near the evaporator or door experiences those swings hardest. A control sensor reading -20 °C on average can coexist with zones that spend defrost periods somewhere your spec never approved.
We map walk-in freezers with calibrated loggers through the storage volume and across multiple defrost cycles — uniformity, excursion behavior, and recovery documented against your acceptance criteria. Our accredited temperature capability reaches -196 °C, so ultra-low equipment is covered too. See also walk-in coolers and freezer mapping studies.
What You Get With Every Calibration
- NIST-traceable calibration certificate with real measurement data — not just a pass/fail sticker
- As-found and as-left readings, so drift is documented
- ISO/IEC 17025 accredited certificate with reported uncertainty — on request
- Calibration label with due date, plus a reminder before your next calibration is due
Why Companies Choose ACS for Walk-In Freezer Mapping Services
NIST-Traceable, Accredited on Request
Every calibration is NIST-traceable with real measurement data. Temperature (-196 to 420 °C), infrared (35–500 °C), and humidity (30–75 %RH) are on our ISO/IEC 17025 accredited scope — accredited certificates available whenever your quality system requires them.
4–6 Business Day Typical Turnaround
Keep production moving. Most instruments are typically completed in 4 to 6 business days from arrival, with rush options available when a line is down.
Flexible Logistics
Mail your instruments in, or schedule onsite calibration and we come to your floor — serving Alabama, Florida, Georgia, Mississippi, Tennessee, South Carolina, and beyond.