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Powder Weighing Cabinets

P-1 & P-2

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To ensure the operator is protected during precise powder weighing operations, Cruma has designed a new cabinet equipped with a double-HEPA filter that retains particles of up to 0.3 microns. The cabinet comes in two different sizes and is equipped with a main H14 filter and an H14 safety filter at the point of discharge. Optionally it can include an activated carbon filter at the same point.
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Certified

Manufactured in Barcelona using CE components and certified by an external laboratory pursuant to international Standards and applying the ISO 9001:2015 quality criteria.

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Flexible

These can be used in areas where it is difficult to extract contaminated air, such as the lower floors of buildings, and they can be placed in different locations, which it means that they can be easily relocated if needed.

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Economic Savings and Easy to Set-Up

No expensive works are necessary to install conduits to extract the gas to the outside which means there are no additional costs and no need to interrupt a laboratory working at full capacity.

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Energy Savings

Unlike traditional extraction hoods, our fume hoods do not use the air conditioning equipment inside the laboratory, which substantially reduces energy costs. The aspirated air is not expelled outside but recirculated back into the laboratory free from contaminating substances.

Advantages

 

Manufacturing: External parts are 1.2 mm galvanized coated steel with anti acid polymer resin powder heat-hardened at 200 °C. The doors are transparent polymethylmethacrylate 6 mm thick (light transmission of 93%)

Working surface: Surface area / working chamber is in stainless steel AISI 304 2B

Information on the 127x34mm LCD display 

▼ Air speed continuously monitored
▼ Type of filter installed, working hours, expiration date and next revision date
▼ Open door warning through electronic photocell
▼ Countdown timer, clock and calendar

 

Features and components

▼ Initial air flow cycle adequacy and final purge cycle
▼ Fault LED
▼ Control of air flow through Microprocessor
▼ Filters with electronic chip
▼ Internal temperature sensor
▼ Open door warning / Open door in off mode warning
▼ Next validation warning
▼ Few hours of filter life warning
▼ Countdown timer warning
▼ Expired filter alarm (by hours)
▼ Expired filter alarm (by date)
▼ Temperature alarm
▼ Equipment without filter alarm
▼Low barrier alarm
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Possible Applications

 

▼ Analysis laboratories
▼ Research laboratories
▼ Quality control laboratories
▼ Clinical laboratories, etc……in short, in any laboratory.

 

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127x34mm LCD Display

Type of filter installed
Working hours
Wxpiration date and next revision date
Countdown timer
Clock and Calendar

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New features and components

Initial cycle flow adequacy and final purge cycle
Fault LED
Control of air flow through Microprocessor
HEPA filters with electronic chip
LED illumination

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New alarms and scheduled warnings

Next validation warning
Few hours of filter life warning
Countdown timer warning
Expired filter alarm by hours & by date
Equipment without filter alarm


Cabinet with double Hepa filtration: the filtration system consists of two HEPA filters H-14 for the retention of particles up to 0.3 microns. Standard with no surprises.

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The cabinet comes equipped with H-14 main filter plus an H-14 safety filter to the expulsion.
When ordered, it can be configured with an activated carbon filter to the expulsion instead of the HEPA filter.

 
Models and Technical Specifications

Two sizes for all needs.

 
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Model P-1 P-2
Internal Sizes (width/depth/high) 710x556x610 1110x556x610
External Sizes (width/depth/high) 800x600x1137 1200x600x1137
Filtration columns 1 1
Filter number 2 2
Fans 1 1
Average volume of treated air/hour 175 175
Average face velocity 0.50 m/s 0.50 m/s
Internal volume of the cabinet 0.236m3 0.236m3
Renewals inside the cabinet / min. 9.6 8.3
Total electrical power consumption 73 W 91 W
Voltage-Frequency 110-220 V / 50-60 Hz 110-220 V / 50-60 Hz
LED light intensity LED 900Lux / LED 16 W 900Lux / LED 16 W
UV Lamp - -
Noise Level 48 dB 48 dB
Weight 112 Kg 142 Kg
Packaging volume 0.74 m3 0.95 m3
Serial Equipment
Full Equip cabinets
 
Equipment Description
Electronic circuit with large format LCD screen Security levels: level 1 for users and level 2 for maintenance users.
Electronic anemometer device Electronic sensor monitoring continuously air face velocity
Photocell sensor device for open door detection Electric device with open door alarm
Electronic control device for filters replacement The filters incorporate a microchip with miniUSB connection that identifies the type of filter installed,the expiry date and the serial no.
Illumination LED 16 W / 900 Lux
Electronic cronometre with audible alarm To program the work inside the fume hood
Clock and calendar Display of date and time
Working surface 1 Spill retention tray (2-10 liters) with working surface in white tempered glass
Switched electrical outlet Electrical socket placed on the inside of the cabinet to connect a weighing balance.
Warranty 7 years
Optional Equipment
Details that matter
 
Equipment Description
Movilair Stand with wheels and internal tray in Epoxy coated steel
Tubular steel stand Support stand in Epoxy coated steel
Working surface 2 Spill retention tray (2-10 liters) with working surface in phenolic resin
Voltage / Frequency 125 V / 50 Hz

 

Cruma Filters

Two are better than one. For pure, pristine air.

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A filtration system that includes a double filter as standard: the main H14 filter with a flow equalizer and an H14 safety filter at the point of discharge, both of which have an efficiency rate of over 99.995 % for particles of 0.3 microns (Standards MIL-F51068C, EN-ISO 14644-1 and BS 3298). Optionally, and at no extra cost, the HEPA filter located at the point of discharge can be replaced with an activated carbon filter when weighing operations also require molecular filtration. The main filter comes equipped with an electronic chip as standard to offer the operator a maximum level of safety.

 
 
Filter type Description
Type A For organic vapors such as ketones, ethers, alcohols, xylenes… Eventually it can be used for inorganic acids, but only if used in small quantities because this activated carbon is not impregnated and the excess of acid vapors could saturate it quickly.
Type BE For inorganic acid vapors as H2SO4, HCl, HNO3, and volatile sulfur compounds such as H2S, SO3, … It can be used with organic vapors because the activated carbon incorporates impregnation of metal compounds and neutralizing salts. It is also suitable to filter organic and inorganic compounds when they are in similar proportions.
Type F For formaldehyde vapors and derivatives; also good for other organic compounds. Carbon impregnated with Cu leads, so that it should never be used with inorganic acid vapors.
Type K For NH3 vapors and amines; also good for other organic compounds. Carbon with metal salt complexes impregnation.
Type ABEK Mixed type to be used when the ratios between organic, inorganic and NH3/amines are similar.
Type D HEPA H-14 filter (High Efficiency Particulate Air, according to EN-1822: 1998) for filtering dust and smoke particles.

 

Powder filtration column

Type DG Type DD
Handling of powder with molecular safety filter columnas-filtrantes-tipo-dg Handling of powder with safety filter HEPA-H14 columnas-filtrantes-tipo-dd

 

ventilador Fan   -   molecula-filter Molecular Filter   -   particle-filter HEPA-H14 Filter