Casella CEL Apex personal sampling pumps User Manual

APEX SERIES

PERSONAL AIR SAMPLING PUMPS

& PUMP MANAGER SOFTWARE

(I.S. and Non I.S. Versions)

User Handbook

HB 3294-06

COPYRIGHT

The copyright in this document which contains proprietary information is vested in CASELLA CEL LIMITED. The

contents of this document must not be used for purposes other than that for which it has been supplied or

reproduced or disclosed wholly or in part without the prior written permission of

CASELLA CEL

CASELLA CEL

CASELLA CELCASELLA CEL

CASELLA CEL

Regent House

Wolseley Road

Kempston

Bedford

MK42 7JY

Tel: [phone]

Email: [e-mail]

www.casellameasurement.com

Casella USA

17 Old Nashua Rd

Amherst

NH03031

USA

Tel: [phone]

Email: [e-mail]

www.casellausa.com

1

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
+5oC to +40oC 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

2

location where the external conditions are conducive to the build-up of
electrostatic charge on such surfaces. Additionally, the equipment shall only be
cleaned with a damp cloth.

SICHERHEITSHINWEISE

Apex und Apex pro Luftprobenpumpen sind robust konstruiert, sie sollten
jedoch keinen mechanischen Belastungen, Stuerzen unterworfen werden, und
duerfen nicht mit Wasser in Beruehrung kommen. Auch nicht mit aggressiven
und aetzenden Fluessigkeiten. Die Nichtbeachtung hat den Verfall der Garantie
zur Folge.
Die Sammelpumpen wurden fuer den Batteriebetrieb entwickelt. VERMEIDEN
SIE es die Instrumente laengere Zeit über einen Netzanschluss zu betrieben.
Geraete nicht oeffnen! Senden sie bei einer Stoerung das Instrument an Casella
oder einen der autorisierten Casella Handler zurueck.
Die Garantie erstreckt sich nicht aufReinigung und allgemeine
Wartungsarbeiten.
Vergewissem sie sich vor jedem geplanten Einsatz von der Funktionsfaehigkeit
des Geraetes.
LADEN SIE KEINE DATEN in kontaminierter Umgebung über die IR-Schnittstelle
herunter.
Benutzen sie ausschliesslich den Casella Batteriesatz (Artikel Nr. 182013C),
4,8V, 1,7 Ah, Nickelhydrid, Cadmium frei, schnell aufladbar. Die Batteriesaetze
duerfen nicht getauscht oder durch Fremdfabrikate ersetzt werden.
Benutzen sie das Ladegeraet NICHT in kontaminierten Bereichen.
Das Geraet darf nicht bei aeusserlichen Beschaedigungen oder schadhaften
Batteriesaetzen in Betrieb genommen werden. Die Sicherheit des Geraetes wird
dadurch beintraechtigt.

Anweisungen zur Installation in Gefahrbereichen (Europaeische
ATEX Direktive 94/9/EC, Anhang II, 1.0.6.):

Die Geraete koennen mit brennbaren Gasen und Daempfen, mit Apparaten der
Gruppen IIA, IIB und bei Temperaturen der Klassen T1, T2, T3 und T4 betrieben
werden.
Die Geraete sind für den Einsatz bei einer Umgebungstemperatur von +5oC bis
+40oC freigegeben und sollten nicht ausserhalb dieses Bereiches betrieben
werden.
Die Zertifikate sind am Ende des Handbuchs detailliert aufgelistet.
Reparaturen sollten nur vom Hersteller oder autorisierten Händlern durchgeführt
werden.
Die Zertifizierung der Geraete basiert auf den folgenden
Konstruktionsmaterialien:
Hoch stossfestes PC-ABS/reines Polykarbonat/Acrylic
Wenn das Geraet mit aggressiven Substanzen in Beruehrung kommt, ist der
Anwender dafür verantwortlich die erforderlichen Schutzmassnahmen zu treffen
um das Gerät vor Schaeden zu bewahren. (Aggressive Substanzen, z.B.
Loesungen koennen PC angreifen.)
Entsprechende Vorkehrungen wie z. B. Routine- inspektionen und die
Auswirkungen spezifischer chemischer Substanzen sind zu treffen, bzw. zu
beachten.
Unter bestimmten extremen Bedingungen können sich nichtmetallische Teile
innerhalb des Gehaeuses elektrostatisch aufladen. Bei Anwendung des Gerätes
nach Gruppe II, Kategorie1 darf das Gerae nicht in Bereichen betrieben werden
in denen die Moeglichkeit des Aufbaus einer elektrostatischen Aufladung

3

besteht.Zusaetzlich ist das Geraet mit einem feuchten Tuch zu reinigen

AVERTISSEMENTS !
Toutes les Versions:

Les pompes de prélèvement d’air Apex et Apex Pro sont conçues pour être
robustes, toutefois elles ne doivent pas être jetées ou soumises au choc
mécanique. Ne pas utiliser dans l’eau, dans des lieux fortement saturés ou à
des fortes expositions de gaz corrosif. Le non-respect de ces instructions
rendra la garantie nulle.
Ces instruments sont conçus car des unités d’échantillonage individuel
fonctionnant à partir de batteries. NE DOIVENT PAS ÊTRE actionnées pendant
des périodes prolongées des approvisionnements externes.
Si l’utilisateur suspecte un défaut, l’instrument doit être retourné
immédiatement à Casella CEL ou à une agence approuvée par Casella pour la
réparation. La garantie ne concerne que les pièces détachées hors maintenance
des appareils.

Versions de sécurité intrinsèques:

N’essayez pas de télécharger des données par l’intermédiaire du port IR dans
une aire dangereuse.
Utilisez seulement les batteries intrinsèques validées par Casella. Numéro de
la pièce: 182013Ç (norme universelle 4,8 V, 1,7 Ah nickel-metal hydride). est
chargé in situ. Les batteries non intrinsèques ne peuvent être utilisées avec
des pompes intrinsèques.
Le chargeur de batterie ne doit pas être employé dans un secteur dangereux.
L’équipement ne doit pas être employé si le couvercle externe de la batterie est
endommagé car la sécurité intrinsèque de l’instrument ne sera pas forcément
assurée.
Les utilisateurs doivent toujours s’assurer que les pompes de prélèvement
conviennent aux règles de sécurité intrinsèque pour l’emplacement prévu avant
l’emploi.

Instructions spécifiques à l’installation dans des zones
dangereuses (reference European ATEX Directive 94/9/EC, Annex II,

1.0.6.):

L’équipement peut être utilisé avec les gaz et les vapeurs inflammables avec les
groupes d’appareils IIA, IIB et avec une température de classe T1, T2, T3 et T4.
L’équipement est seulement certifié pour l’utilisation dans des températures
comprises entre +5oC à +40oC et ne doit pas être utilisé en dehors de cette
gamme.
L’inscription du certificat est détaillée à l’arrière du manuel.
La réparation de cet équipement sera effectuée par le fabricant ou
conformément aux règlements et aux usages appropriés.
La certification de cet équipement se fonde sur les matières suivantes
employées dans sa fabrication :
High Impact PC- ABS/ Clear Polycarbonate/Acrylic.
Si l’équipement est susceptible d’entrer en contact avec des substances
agressives, alors il est de la responsabilité de l’utilisateur de prendre les
précautions nécessaires pour empêcher la dégradation de l’appareil, et de ce fait
s’assurant que le type de protection n’est pas compromis.
Des substances agressives comme les solvants peuvent affecter des matériaux
polymères
Des contrôles réguliers doivent être effectués par des inspections courantes ou
par l’établissement d’une fiche technique du matériel spécifiant sa résistance à

4

certains produits chimiques.
Dans certaines circonstances extrêmes, les pièces non métalliques incorporées
dans la fermeture de cet appareil peuvent produire un seuil explosif de charge
électrostatique. Par conséquent, quand il est employé pour des applications qui
exigent spécifiquement le groupe II, appareil de la catégorie 1, l’équipement ne
sera pas installé dans un endroit où les conditions externes favorisent le
développement de la charge électrostatique. De plus, l’équipement sera
seulement nettoyé avec un tissu humide.

ADVERTENCIAS !
Versión con standard:

Los muestreadores personales Apex y Apex Pro están diseñados para ser
robustas, sin embargo no deben ser sometidas a impactos o ser golpeadas. No
sumergir en agua o gases altamente saturados o corrosivos. El incumplimiento
de estas recomendaciones puede invalidar la garantía.
Estos equipos están diseñados como unidades de muestro personal que
funcionan con baterías internas. NO DEBEN utilizarse conectadas a red
eléctricia.
Los equipos no contienen componentes susceptibles de cambio por parte del
usuario. En caso de detectar cualquier fallo o avería se deberá enviar el equipo
directamente a Casella.
La garantía no incluye la limpieza del equipo ni cualquier otra tarea de
mantenimiento general del mismo.

Versión con seguridad intrínseca:

No intente descargar datos vía el puerto IR en área peligrosa.
Utilice solamente baterías con seguridad intrínseca de Casella. Número de
Referencia: 182013C (estándar universal 4,8 V, 1,7 Ah niquel-meta-hidruro). Se
carga in situ. Las baterías para las versiones sin seguridad intrínseca no se
pueden utilizar con las versiones con seguridad intrínseca.
El cargador de batería no se debe utilizar en un área peligrosa.
El equipo no debe ser utilizado si la carcasa externa de la batería está rota o
dañado de cualquier manera ya que esto puede invalidar la seguridad intrínseca
del instrumento.
Los usuarios deben asegurarse siempre antes de su utilización que el grado de
protección del equipo en las bombas del muestreo sea el adecuado en relación
con el grado de protección requerido del sitio previsto para realizar el muestreo.

Instrucciones específicas sobre instalaciones en áreas peligrosas
(referencia Directiva Europea ATEX 94/9/CE, Anexo II, 1.0.6.):

Este equipamiento puede utilizarse con gases y vapores inflamables
pertenecientes a los grupos IIA y IIB, y con temperaturas superficiales máximas
clases T1, T2, T3 y T4.
Este equipamiento únicamente está certificado para su uso a temperatura
ambiente en el rango de temperaturas de +5oC a +40oC y no debe utilizarse fuera
de este rango.
El certificado de marcado del equipo se encuentra detallado al final del manual
de instrucciones.
La reparación del equipo debe llevarse acabo por el fabricante o de acuerdo con
el código de prácticas aplicable.
La certificación de este equipo está basada en los siguientes materiales
utilizados en su construcción:
Carcasa de alto impacto de policarbonato PC- ABS
Si es probable que el equipo entre en contacto con sustancias agresivas,

5

entonces es responsabilidad del usuario tomar las precauciones pertinentes para
prevenir efectos adversos que pudieran afectarlo, de forma que se asegure que
el tipo de protección no quede comprometido.
Sustancias agresivas: disolventes que pueden afectar a los materiales polímeros.

Precauciones adecuadas: comprobar regularmente como parte de la rutina de
inspección o establecer en la ficha de datos del material que es resistente a
compuestos químicos específicos.
Bajo ciertas circunstancias extremas, las partes no metálicas incorporadas en la
envolvente de este equipo pueden generar una ignición del orden de una carga
electrostática. Por consiguiente, cuando se use para aplicaciones que
específicamente requieren equipamiento categoría 1, grupo II, el equipo no
deberá colocarse en una zona en la que las condiciones externas contribuyan a
la generación de carga electrostática en su superficie. Adicionalmente, el equipo
solo deberá limpiarse con un paño húmedo.

AVVERTIMENTI !
Pumpe standard:

Le pompe di campionamento aria Apex e Apex Pro sono state progettate e
costruite per essere robuste e resistenti; tutavia non devono venire a contatto
con acqua o subire colpi / urti meccanici. NON devono essere immerse in acqua,
nè utilizzate in ambienti saturi e in presenza di gas corrosivi. In questi casi, cade
ogni diritto di garanzia.
Gli strumenti sono stati progettati per essere campionatori personali,
funzionanti con batterie interne. Pertanto NON DEVONO ESSERE ALIMENTATE
dall’esterno per periodi di tempo prolungati.
Apex e Apex Pro non contengono parti sostituibili dall’utente e se un difetto è
ritenuto sospetto lo strumento deve essere restituito immediatamente a Casella
CEL o ad un distributore autorizzato Casella CEL per la riparazione.
La garanzia non puo’ essere estesa alle operazioni di pulizia o all’assistenza
generale dello strumento.

Versioni a Sicurezza Intrinseca (I.S.):

Non si devono scaricare i dati via porta IR in zona pericolosa.
Utilizzare soltanto il pacco batteria CASELLA a Sicurezza Intrinseca, codice:
182013C (Standard 4,8 V, 1.7 Ah NiMH) caricata in situ. I pacchi batteria per
versioni non I.S., non possono essere usati con campionatori I.S.
I caricabatteria non devono essere usato in una zona pericolosa.
Il campionatore non deve essere usato se lo chassis esterno o il pacco batteria è
fessurato o risulta danneggiato in qualche modo, poichè questo invalida la
Sicurezza Intrinseca dello strumento.
Prima dell’uso, gli utenti devono accertarsi sempre che il tipo di classificazione
dei campionatori I.S. sia adatto al tipo di zona pericolosa.

Istruzioni specifiche per installazioni in aree pericolose (con
riferimento alla Direttiva Europea ATEX 94/9/EC, All. II, 1.0.6.):

L’apparecchiatura può essere utilizzata con gas e vapori infiammabili con
apparati di Gruppo IIA e IIB, e con temperature di classe T1, T2, T3 e T4.
L’apparecchiatura è certificata solo per l’uso con temperature ambientali
comprese tra +5oC e +40oC, e non deve essere impiegata al di fuori di questi
limiti.
I dettagli relativi alla certificazione si trovano sul retro del manuale di istruzioni.
Ogni intervento di riparazione sulla presente attrezzatura deve essere effettuato
dal produttore o in accordo con il relativo codice di pratica.
La certificazione della presente attrezzatura si basa sui seguenti materiali

6

utilizzati per la sua costruzione:
Policarbonato ad impatto elevato PC- ABS/ trasparente
Nel caso probabile in cui l’apparecchiatura possa venire a contatto con sostanze
aggressive (ad esempio: solventi che possono danneggiare i materiali
polimerici), è responsabilità dell’utilizzatore prendere adeguate precauzioni (ad
esempio: controlli regolari effettuati come parte integrante delle ispezioni di
routine o l’accertarsi, attraverso la scheda tecnica del materiale, della sua
resistenza a specifici agenti chimici), che la proteggano da eventuali danni, in
modo da assicurare che la protezione non venga compromessa.
In particolari condizioni estreme, le parti non metalliche incorporate nella cassa
della presente apparecchiatura potrebbero generare livelli di carica
elettrostatica che potrebbero portare a fenomeni di ignizione. Perciò, quando
usata in applicazioni che richiedono specificamente attrezzature di Gruppo II,
categoria 1, l’apparecchiatura non deve essere installata in luoghi nei quali le
condizioni esterne sono favorevoli all’accumulo di cariche elettrostatiche sulle
superfici. Inoltre, l’apparecchiatura deve essere pulita unicamente con un panno
umido.

7

CONTENTS

1. INTRODUCTION 9

1.1 Control Keys 10

1.2 Display Symbols 11

1.3 Indicators & Display Messages 11

2. PREPARATION FOR USE 11

2.1 Charging the Battery 11

2.2 Switching the Instrument On / Off 13

2.2.1 Hold Mode 13

2.2.2 Manual Reset (Clear Current Sample) 14

2.3 Perform Single Point Calibration (Set Flow) 14

2.4. Configuration Mode 15

3. MANUAL OPERATION 16

3.1 Run Mode 16

3.2 Flow Restriction 16

3.3 Bag Mode 17

3.4 Use With Low Flow Adaptor 17

3.5 Fixed Duration Sampling (DUR) 17

3.6 Locking the Keypad 18

4. ADDITIONAL SAMPLING MODES AVAILABLE
ONLY TO THE APEX PRO AND APEX PRO I.S. 18

4.1 TWA Sampling Mode 18

4.2 User Program Modes 20

5. CALIBRATION MODE 20

6. PUMP MANAGER SOFTWARE 21

6.1 Pump Manager Introduction 21

6.2 Software Installation / Un-installation on WindowsTM 95, 98, ME, NT 4, XP & 2000 21

6.3 Establishing Infrared (IR) Communication 22

6.4 Configuring the Software and Adding a Pump 23

6.5 Downloading Data 26

6.6 Inspecting Data, Adding Supplementary Information and Printing a Report 27

6.7 Creating and Loading Pump Programs 30

6.8 Error Messages 32

7. TECHNICAL INFORMATION 32

7.1 Pump Model Specification 32

7.2 Pump Performance 33

7.3 CE Compliance 33

7.4 Intrinsically Safe (I.S.) Versions Approvals 33

7.5 I.S. Certification 34

7.6 EC Declarations of Conformity 35

8. SERVICING 37

8.1 Maintenance 37

8.2 Fault Finding 37

8.3 Ordering Information 37
Flow Diagram 39

8

Improved Features

PROG.

SET FLO

outlet nozzle

Infra red port

indicator

02022

¤ Small size due to space-saving pump design
¤ Real-time display of flow rate on large LCD
¤ Direct flow control via keypad
¤ Multi language display
¤ Programmable run timer
¤ Data downloading via Infrared link
¤ Set up and data download of Advanced Models controlled by Pump Manager Software
¤ Two I.S. Versions available

Using the Keypad

Manual control is exercised via a simple four key pad.

Press once to switch the instrument ON,
Press and hold a moment to cancel a command,
Press and hold down to switch OFF.

Scroll up through available options or increase a displayed value.
Hold-down to use repeat function.

Scroll down through available options or decrease a displayed value.
Hold-down to use repeat function.
Press to accept a value or option, for example to start the pump,
Press and hold-down to stop the pump.

Red LED
blocked flow/
fault indicator

Inlet nozzle

On/Off
also acts as
cancel key

Scroll up
through available
options,
or increase
displayed value

Scroll down
through available
options,
or decrease
displayed value

RESET

Green LED

pump running

o

C

L/min

CAL

I.R.

Covered

Start/Stop

pump,

also acts as

an Enter key

Figure 1: The Apex

1.INTRODUCTION

For many years, the name Casella has been associated with the design and manufacture of personal air
sampling pumps for the occupational health and hygiene market. The Apex series of pumps is an improved
replacement for models in the highly successful Vortex range.
These instruments use an efficient diaphragm pump whose flow rate is precisely maintained using
automatic flow control circuitry (Patent pending). The pump draws contaminated air through a sampling
head at a rate determined by the head design or sampling strategy. Four models are available. Check model
identity by referring to the the label on the rear panel.

Apex (standard model),
Apex Pro (can be downloaded and programmed by a PC),
Apex I.S. (Intrinsically Safe version of the standard model),

9

Apex Pro I.S. (Intrinsically Safe version of the Apex Pro).

Red LED

Green LED

Status Icons

Battery Condition

Please consult Casella CEL for information about upgrading a standard model to an Apex Pro or an Apex I.S.
to an Apex Pro I.S. The instrumentation is available as individual pumps or as complete kits with the
appropriate accessories to suit particular applications and is supported by our training and service facility at
Bedford.

The Apex was developed to provide sampling capabilities between 5 ml/min and 5 l/min (4 l/min for I.S.
versions), suitable for a wide range of applications including solvent fumes, asbestos clearance and
personal sampling of dusts. Apex pumps are ideally suited to many of the “Total” and “Respirable” dust
sampling techniques detailed in the U.K. Health and Safety Executive’s publication MDHS14, and in other
reference methods.
The information contained in this handbook relates only to the operation of Casella CEL sampling equipment
and is not intended to advise or influence your adopted sampling strategy. For advice on appropriate
sampling methods, refer to local legislation and guidelines as dictated by the relevant national and regional
health and safety organisations.

Figure 2: Top view

Pump running
indicator

Outlet nozzle
(for gas bag)

02012

Flow Rate Varying Messages

1.1 Control Keys

Switches the instrument ON/OFF, also acts as a cancel key.
Hold the key down to switch OFF.

Scrolls up through available options or increases a value.
Has a hold-down to repeat function.
Scrolls down through available options or decreases a value.
Has a hold-down to repeat function.
Accepts a value or option, starts/stops the pump.
Hold the key down to stop the pump.

PROG.

RESET

TEMP 19.48

2.5

SET FLO

CAL

L/min

I.R.

Blocked flow/

Error indicator

Inlet nozzle

Infra red port

02035

Figure 3: Display

o

C

10

1.2 Display Symbols

Halt - shows when pump is in Hold Mode , or blinks when halt option available.

Run - shows when pump motor is running.

Flow - indicates real flow monitoring is in progress.

Together indicates that the pump is paused but will start again

automatically, for example during TWA (time weighted average) or user prepared programs.

Indicates that all accumulated values displayed can be cleared back to zero (i.e. reset sample
volume and run time).
Resetting the store in this way ends the current sample run.
Warning - indicates flow outside permitted limits or other error
conditions.
This warning will be stored with the associated data on Apex Pro
versions.
Battery condition - The symbol empties as the power is drained and blinks when the output
approaches the minimum operating voltage.
Instrument temperature (user selected units).

Key pad is partially locked, the user can only start or stop the pump.

Key pad is fully locked.

1.3 Indicators & Display Messages

Green LED Flashes when the pump motor is running.
Red LED Flashes when the pump is unable to maintain the required
flow due to a restriction, or due to some other error.
PROGEnd Displayed when the pump has successfully completed a
programmed run.
BATTFAIL Warning when the voltage from battery pack falls below
the minimum operating level.
SERV dUE Warning after 2500 hours of operation that the instrument
should be serviced.

BUZZEr When activated, sounds warnings and indicates key strokes.

2. PREPARATION FOR USE

The following steps are required before the instrument can be operated.

Charge the Battery,
Perform a Calibration,
Connect the Sampling Head.

Manual operation is described in Chapter 4.

2.1 Charging the Battery

Three types of battery pack are available: two non-I.S. and one I.S. The battery pack connectors for non-I.S.
and I.S. are not compatible.
Standard 4.8 V, 2.7 Ah nickel-metal hydride pack that is charged in situ. Depending on loading, a fully
charged battery pack can provide up to 20 hours of continuous operation.
Non-rechargeable pack for emergency use only that takes four AA Alkaline dry cells. Depending on
battery type and flow rate, this can give up to approximately 8 hours of continuous operation. This pack
must not be used with I.S. Versions.(See Apex Lite).
I.S. version 4.8 V, 1.7 Ah nickel-metal hydride battery pack that is charged in situ. Depending on loading, a
fully charged pack can provide up to 20 hours of continuous operation.

11

DO NOT open the battery compartment of I.S. versions in a hazardous area.

Connector

for battery

3-way for non-I.S.

Hole for

v04018

Battery

compartment

cover

Casella CEL

Ni-MH Battery Pack

DO NOT charge I.S. battery packs in a hazardous area.

The battery pack is installed in a compartment located at the bottom rear of the instrument (Figure 4) A
captive screw locks the compartment cover.

There are two types of charger for non I.S and two
types of charger for I.S units. The single-way Fast
Charger (Part No. 182052B) and the 5-way chargers for
non I.S. use listed in Section 8.3 can be used only for
non I.S. versions. It will not charge I.S. versions.
I.S. versions must be charged only with the single-way
I.S. Charger (Part no. 182261B) or the 5-way chargers
for I.S. use listed in Section 8.3. For compliance
reasons, these chargers accurately control current
during charging, so take a slightly longer time to charge
the battery pack. These chargers can be used with non
I.S. versions, but will take longer to achieve a full
charge.

Charging is accomplished by inserting the complete
Apex unit into a drop-in charger (see Figure 5). All
battery chargers for Apex sampling pumps are
intelligent units with a safety time-out and standby
trickle charge mode to keep the pump ready for use.

The use of modern fast charge technology enables a discharged non I.S. pack to be fully recharged within 3
hours. Depending on filter type, a 1 hour charge can give a non I.S. pack sufficient power for 8 hours
operation. Similarly, a discharged I.S. pack can be fully recharged within 4.5 hours and depending on filter
type, a 1.5 hour charge can give it sufficient power for 8 hours operation.
A two colour LED on the charger shows the charging state. A constant red indicates that charging is taking
place while a constant green indicates that the full charge is being maintained by a trickle charge. (If neither
colour is shown while the pump is in the charger, a fault condition exists.)

When an Apex unit is initially placed in the charger unit, the LED will flash red for a few seconds before
changing to constant red. If the battery has been deeply discharged, it is possible that the LED will continue
to flash red for a longer period as the charger unit tries to condition the battery before entering the fast
charge state. If the flashing red continues for a prolonged period (e.g. a few hours) then a fault condition
exists. If when an Apex unit is placed in the charger, a constant green LED is shown, remove the Apex for
at least five seconds, then re-insert it. Faster replacement may have caused a false status indication.
To ensure the maximum life expectancy of rechargeable battery packs, DO NOT allow them to remain in a
fully discharged condition for extended periods of time.
When changing dry-cells in a non-rechargeable pack, it is recommended not to unplug the connector for the
battery pack lead.

Battery
compartment

Padding

Sealed
battery
pack

Figure 4: Battery Compartment

captive

screw

pack lead.

5-way for I.S.

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