Benchtop Test Chambers Temperature and Humidity
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Compact chambers with extended testing ranges ESPEC's Criterion benchtop chambers offer two sizes and a variety of testing ranges. With many options, they can be configured to accommodate your specific requirements. Their narrow footprint saves valuable lab space.

Benchtop Features Models save valuable lab space ESPEC introduces our expanded Criterion Series. With a narrower footprint and increased performance, these test chambers provide an economical and space-saving solution for cramped labs needing to do a variety of temperature (and humidity) testing. Size Comparison All of the Criterion models have a 19.5 inch wide interior, which is 3.5 inches more than traditional benchtops, yet the exterior is 20% narrower. The four cubic foot models have the largest workspace found in a benchtop unit, while maintaining the smallest exterior footprint. For...

Benchtop Features Space-saving design An innovative new layout of system components helps make Criterion chambers have the smallest footprint. Keeping the refrigeration compressors and blower fan to the back of the chamber also reduces noise to the room. Test Area Useful safety features To protect from the risk of overheating, there are three levels of protection: 1. Settable within the programmer 2. An independent settable monitor 3. A thermal fuse In addition, a specimen power terminal allows the user to safely operate powered equipment inside or with the chamber. If the chamber is shut...

Instrumentation Watlow F4 controller The Watlow F4 is a popular, easy to use, programmer/controller for test chambers. It stores up to 40 different test profiles (total 256 steps). Programming step-types available are: ramp, soak, jump/repeat, auto-start, and end. The F4 includes RS-232C serial interface and software. Optional remote access via Ethernet is possible, as well as software upgrades for full datalogging capability. One event relay with external output terminal is included for activating other equipment during operation. Options Cabinet Options Humidity Options • Roll-around cart...

Temperature Range Change Rate (per IEC 60068 3-5) Temperature Fluctuation Temperature Gradient Live Load Capacity Interior Volume Site Requirements Power Sound Level 65 dBA (1 meter away from door) Gravity Drain Room Temperature Performance assured when room temp. is steady, 18 to 27°C (65 to 80°F) Chart shows example of heating and cooling ramps during IEC 60068 3-5 qualification (see page 3). Accessories included with each chamber: • RS-232 configurator software by Watlow • Cable port plug • Power cable with plug (115V is NEMA 5-20, 208/230V is NEMA 6-20) • Box of wet-bulb wicks (BTL/BTX)...

Temperature Range Temperature Fluctuation Temperature Gradient Live Load Capacity Humidity Range Humidity Fluctuation ±5% RH per IEC 60068 3-5 except measured in supply air Interior Volume Site Requirements Power Sound Level 65 dBA (1 meter away from door) Gravity Drain 3/8" NPT Supply: 3/8" NPT, 30-50 psig Typical usage: 0.5 gallons/day Purity required: 0.2 μS/cm to 10 μS/cm Humidity Water Supply Room Temperature Performance assured when room temp. is steady, 18 to 27°C (65 to 80°F) Chart shows example of heating and cooling ramps during IEC 60068 3-5 qualification (see page 3). Controlled...

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