Thermostatic test chamber CIT01-20S

temperatureheatingtemperature stability

Overview
The CIT01-20S self-heating substance tester is designed to determine whether samples oxidize and self-heat when exposed to air under controlled temperatures, in accordance with the UN Recommendations on the Transport of Dangerous Goods (Tests and Criteria, section 33.3.1.6 Test N.4). The instrument evaluates self-heating at a maintained temperature of 75°C for up to 48 hours and can perform tests at higher temperatures to assess transport hazards and thermal behavior.

Functionality
The tester assesses self-heating by placing samples in cubic steel mesh containers (25 mm or 100 mm side) exposed to air at set test temperatures (e.g. 75°C, 100°C, 120°C, 140°C). Temperature differences between the test sample and an inert reference are monitored to detect exothermic behavior. The device is suitable for explosives, desensitized explosives, self-reactive substances and organic peroxides and complies with UN Test N.4 (33.3.1.6), UN 13.6.1 Test 3(c) and EN 13631-2:2002 where applicable.

Product Features

• Combined self-heating and 75°C thermal stability tests in one instrument
• Embedded processor running Windows CE
• 8-inch LCD touchscreen with real-time display of test status
• Built-in hot air circulation heating system for uniformity and stability
• Digital PID control algorithm for precise temperature regulation
• Test reports include assessment related to packaging type
• Instrument fault detection with audible and visual alarms for enhanced safety
• Configurable test parameters and adjustable test sequences for diverse test programs
• Special-spec steel mesh cages; customization available on request
• Three-point temperature measurement system for accurate data
• Pressure-relief pipe cover to release internal pressure effectively
• Fully automated, unattended operation with integrated workflow
• Real-time runtime and temperature display, automatic plotting of test curves and raw data access
• Front explosion-proof glass observation window and rear pressure-relief door; internal thrust > 2.5 kgf
• Support for parameter setting, data storage and report viewing

Product parameters (table)
MODEL: CIT01-20S — 75°C Thermal Stability Tester & Self-heating Substance Tester (upgrade of CIT01-10S)
Working environment: 5 °C ~ 30 °C, <85% RH
Temperature range: room temperature ~ 200 °C
Temperature control accuracy: ±1 °C
Experimental area average temp. variation: within ±1.5 °C below 140 °C
Temperature measuring range: 0 ~ 500 °C
Temperature resolution: 0.01 °C
Temperature measurement accuracy (below 300 °C): ±2.5 °C
Standard test time range: 0 ~ 24 h
Custom test time range: 0 ~ 48 h
Small cubic steel mesh container: side 25 mm, aperture 0.05 mm (housing 3×3×3 cm)
Large cubic container: side 100 mm, aperture 0.05 mm (cover 10.5×10.5×10.5 cm)
Mesh cage size: 15×15×25 cm
Liner size: 35×35×40 cm

Technical specifications

• Model: CIT01-20S (upgrade of CIT01-10S)
• Working environment: 5 °C to 30 °C, RH <85%
• Temperature range: ambient to 200 °C
• Temperature control accuracy: ±1 °C
• Experimental area average temperature variation: within ±1.5 °C for temperatures below 140 °C
• Temperature measuring range: 0 to 500 °C
• Measurement resolution: 0.01 °C
• Measurement accuracy (below 300 °C): ±2.5 °C
• Standard test time range: 0 to 24 h
• Custom test time range: 0 to 48 h
• Small cubic steel mesh container: 25 mm side, aperture 0.05 mm (3×3×3 cm)
• Large cubic container: 100 mm side, aperture 0.05 mm (cover 10.5×10.5×10.5 cm)
• Mesh cage size: 15×15×25 cm
• Liner size: 35×35×40 cm
• 8-inch touchscreen, embedded processor, Windows CE OS
• Built-in hot air circulation and digital PID temperature control
• Three-point temperature measurement and pressure-relief safety features