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Benchtop
stability chambers |
  For
the ultimate in humidity testing in a compact size, ESPEC introduces
the BTL-433 humidity chamber with the improved features and expanded
capabilities.
The four cubic foot workspace is the largest to be
found in a benchtop unit, while requiring less footprint than even
smaller comparable chambers. The extended temperature and humidity
ranges make testing at more extreme conditions possible.
The vertical configuration saves bench space, plus
the refrigeration’s ventilation design allows installation
against a wall for even more space savings.
Features include:
- Stainless steel exterior and durable thermoformed
plastic door
- Full thermal break around doorframe
- One 50mm (2") diameter cable port on left,
with flexible silicone plug
- Three levels of overheat protection
- 115V main power with detachable eight-foot power
cord
- High performance and quiet operation (65 dBa)
- Easy lift-off service panels
WATLOW F4 PROGRAMMER/CONTROLLER
- Popular PID controller for test chambers
- Stores 40 different profiles (total 256 steps)
- Step types include: ramp, soak, jump, auto-start,
and end
- RS-232C Modbus interface (free standard software)
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Temperature range |
Humidity range |
Interior volume |
Interior dimensions
(W x D x H) |
| BTL-433
|
-20 to 180°C
-4 to 354°F |
10 to 95%
(see chart below) |
4 cu. ft.
110 Liters |
19.6" x 15"
x 23.6"
500 x 380 x 600 mm |
Exterior: 29" x 34" x 46" (740
x 850 x 1150 mm)
BTL-433 Criterion humidity range
Suitable for 23°C/50%, 40°C/75% and 85°C/85% tests
Options available:
- Viewing window (shown above)
- Ethernet/computer interface with software
- Paperless
recorder with display, CompactFlash memory, and Ethernet connection
- Strip chart or circular chart recorders
- Stainless steel wire shelves
- Cart with casters
- Water supply tank
- Water filter cartridge system
- Cable ports for running in wires: 25mm, 50mm, or
100mm diameter (one 50mm is included)
ESPEC Expertise in Humidity Control
Controlling humidity in a small chamber can
be especially challenging. ESPEC expertise in humidity control
brings intelligent design that is carefully integrated into
the BTL-433. The humidity subsystems are designed for reliability,
convenience, and performance:
- An external steam generator allows
expanded range and is easy to maintain.
- A separate de-humidification coil improves
low humidity control and range.
- Wet-bulb humidity sensor “primary
measurement method” for accuracy. It is also economical,
easy to maintain, and reliable because it has no risk of
failure due to over-saturation. (Read why analog
is preferred over digital.)
- Direct water supply connection is standard
for continuous operation, with options for water filtering
and recirculating water tank.
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