Casella CEL Apex personal sampling pumps User Manual
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WARNINGS ! 
All Versions: 
Apex and Apex Pro air sampling pumps are designed to be robust, however they 
should not be dropped or subjected to mechanical shock. DO NOT suck in water, 
or highly saturated or corrosive gases. Failure to comply will render the 
warranty invalid. 
These instruments are designed as personal sampling units operating from 
internal batteries. They MUST NOT be powered for prolonged periods from 
external supplies. 
They contain no user serviceable parts and if a fault is suspected the instrument 
must be returned immediately to Casella CEL or to a Casella CEL Approved 
Agency for repair. 
The warranty DOES NOT extend to cleaning or general servicing of the 
instrument. 
Intrinsically Safe Versions:
DO NOT ATTEMPT TO DOWNLOAD data via the IR port in a hazardous area. 
Use only a CASELLA APPROVED Intrinsically Safe battery pack. Part Number 
182013C (4.8 V, 1.7 Ah Nickel metal- hydride). Battery packs for the non 
intrinsically safe versions MUST NOT be connected to the intrinsically safe 
versions. 
DO NOT use the battery charger in a hazardous area. 
DO NOT use the equipment if the outer case of the instrument , or the battery 
pack is cracked or damaged in any way as this invalidates the intrinsically safe 
certification. 
The user MUST ENSURE that the I.S. rating of the pump to be used is suitable 
for the I.S. rating of the intended hazardous area. 
To prevent ignition of flammable or combustible atmospheres, DISCONNECT 
POWER before servicing. 
DO NOT service while in a hazardous area. 
Instructions specific to hazardous area installations (reference 
European ATEX Directive 94/9/EC, Annex II, 1.0.6.):
The equipment may be used with flammable gases and vapours with apparatus 
Groups IIA, IIB and with temperature classes T1, T2, T3 and T4. 
The equipment is certified only for use in ambient temperatures in the range 
+5
o
C to +40
o
C and should not be used outside this range.
The certificate marking are detailed in the rear of the handbook. 
Repair of this equipment shall be carried out by the manufacturer or in 
accordance with the applicable code of practice. 
The certification of this equipment relies on the following materials used in its 
construction: 
 
High Impact PC- ABS/ Clear Polycarbonate/Acrylic.
If the equipment is likely to come into contact with aggressive substances, then 
it is the responsibility of the user to take suitable precautions that prevent it 
from being adversely affected, thus ensuring that the type of protection is not 
compromised. (Aggressive substances e.g. solvents that may affect polymeric 
materials.) 
Suitable precautions e.g. regular checks as part of routine inspections or 
establishing from the material’s data sheet that it is resistant to specific 
chemicals. 
Under certain extreme circumstances, the non-metallic parts incorporated in the 
enclosure of this equipment may generate an ignition-capable level of 
electrostatic charge. Therefore, when it is used for applications that specifically 
require group II, category 1 equipment, the equipment shall not be installed in a 
