Environmental Express HotBlock CAL 3300 - Manual (Page 8)

Environmental Express HotBlock ™
Environmental Express HotBlocks provide an efficient method of digesting and storing water, wastewater, soil and sludge
samples for metals analysis. These innovative digestion systems allow samples to be digested in a corrosion-free
environment. In addition, samples are handled in a small area with minimal radiant heat loss. Users should be aware of
potential dangers from heating certain types of compounds. Such hazards may include explosion or the release of toxic or
flammable gases
Unpacking Your HotBlock
Remove the HotBlock from the shipping container by lifting from the bottom of the block. The lid should not be used for
lifting. Your HotBlock is shipped with metal screws securing the bottom panel. The metal screws must be removed before
operating your HotBlock. Remove the metal screws and replace them with the PVC screws and rubber feet included with
your shipment. The corrosion-resistant PVC screws and rubber feet are designed to secure the bottom plate.
IMPORTANT: DO NOT OVER TIGHTEN THE PVC SCREWS!
Definitions/Markings
Each HotBlock displays certain markings and symbols. All personnel working with the HotBlocks should have an
understanding of the following symbols and definitions:
Definitions and Symbols:
n V = voltage
n ~ = alternating current
n Hz = frequency
n A = amperes
Installation Requirements
Locate the HotBlock under a fume hood with a minimum face velocity of 100fpm, and allow a minimum of 2" of space on
all sides. The following environmental conditions should be observed:
n Ambient temperature range: 5-30°C
n Ambient relative humidity: 0-90%RH
n Altitude: sea level to 2500 meters
HotBlocks are rated as Pollution Degree 2 and Installation Category 2.
Electrical Requirements
n Required Voltage: 120 volts, ~ 60Hz, 15A
(all HotBlocks are also available in 240V with CE mark)
Power should not vary greater than ± 10%. Use the supplied heat-resistant power cord or equivalent to connect to the
power supply
For safety reasons, a separate power receptacle should be provided for each unit in the system. Do not use extension
cords or outlet adaptors. Make certain that power outlets are earth-grounded at the grounding pin.
See individual specifications for each HotBlock model, pages 4-6.
This symbol means “Caution
Hot Surface”. The surface of
the HotBlock may be too hot
to safely touch with bare
hands.
This symbol means “Read
and become familiar with
instructions before
operation of instrument”.
Environmental Express • 7
Installation, General Information
HotBlock Operation Guide
www.environmentalexpress.com