Ele CBR-Test 50 User manual

CBR-Test 50
24-9150
Original Instructions 1 9901X0237 Issue 5
OPERATING INSTRUCTIONS
CBR-Test 50
24-9150
ELE International
Chartmoor Road, Chartwell Business Park
Leighton Buzzard, Bedfordshire, LU7 4WG
England
phone: [phone]
fax: [phone]
email: [e-mail]
http://www.ele.com
ELE International, a division of Hach Lange Ltd.
Distributor:
ELE International
Soiltest Product Division
PO Box 389, Loveland, CO 80539
USA
phone: [phone]
fax: [phone]
email: [e-mail]
http://www.eleusa.com
In the interests of improving and updating its equipment, ELE reserves the right to alter specifications to equipment at any time.
ELE International 2015 

CBR-Test 50
24-9150
Original Instructions 2 9901X0237 Issue 5
Contents
Section Page
- Figure 1 3
- Figure 2 4
1 Safety 5
2 Introduction 5
3 Specification 6
4 Installation 6
5 Controls 7
6 Operation 7
7 Maintenance 8
Declaration of Conformity
Noise Certificate
WEEE Directive

CBR-Test 50
24-9150
Original Instructions 3 9901X0237 Issue 5
LOCKING
NUTS
ALIGNMENT
STUDS
ADJUSTMENT
NUTS
LOADRING
COLUMN
CROSSHEAD
PENETRATION
PISTON
PLATEN
SURCHARGE
WEIGHTS
DOWN-OFF-UP
SWITCH
STABILISING
BAR
CBRMOULD
MAINS POWER
LIGHT
FIGURE 1
PENETRATION
DIAL GAUGE

CBR-Test 50
24-9150
Original Instructions 4 9901X0237 Issue 5
Figure 2

CBR-Test 50
24-9150
Original Instructions 5 9901X0237 Issue 5
1 Safety
This equipment has been tested by ELE International and is safe to use providing that
the proper safety precautions are observed:
Do not use this equipment in any manner, other than as specified in this user
manual; misuse may result in serious injury to personnel.
Do not attempt to operate the equipment with covers removed. Only connect to
the correct electrical supply.
Refer to Installation section before installing machine.
Do not operate machine with wet hands.
Please read this entire manual before unpacking, setting up, or operating this
equipment. Pay particular attention to all DANGER and CAUTION statements.
Failure to do so could result in serious injury to the operator, or other personnel, or
damage to the equipment. Ensure all moving parts are thoroughly secured before
attempting any maintenance.
1.1 Symbols
Green or Black
PROTECTIVE CONDUCTOR TERMINAL
Equipment safety earthing point
Any contrasting
Color
“I” =SUPPLY SWITCHED “ON”
“O” =SUPPLY SWITCHED “OFF”
Any contrasting
Color
FUSE,FOR SAFE OPERATION OF THE EQUIPMENT,USE
ONLY FUSES WITH RATINGS SPECIFIED
Green or Black
Earth (ground) TERMINAL
Not for safety earthing purposes but provide an earth
reference point.
Background Yellow;
symbol and outline -
Black
Caution, risk of electric shock
Background Yellow;
symbol and outline -
Black
Caution - refer to accompanying documents
Any contrasting
Color
Equipment conforms to the requirements of
European CE Directives, as stated on the
Declaration of Conformity
2 Introduction
This machine has been designed to perform CBR tests which conform to BS 1377
and 1924, ASTM 1883 and to AASHTO T192.
The forces applied are generated by a screw jack via a worm reduction unit driven by
a motor/gear unit. It provides one speed of 1.27 mm/min which satisfies
ASTM/AASHTO Standard and the 1.2 mm ± 0.2 mm/min of the BS Standard. The
worm reduction unit and motor/gear unit is grease packed on assembly and should
not normally require further lubrication.
Rapid adjustment of height of the loading platen is achieved by rotating the platen
anti-clockwise to raise and clockwise to lower.
Limit switches are fitted to prevent over travel on the up and down stroke of the
platen.

CBR-Test 50
24-9150
Original Instructions 6 9901X0237 Issue 5
A ball seated screw fitting located on the crosshead accepts ELE load rings and load
transducers up to and including 50 kN.
A socket at the rear of the machine provides a connection for the Electronic Control
and read-out Unit (DSU) for use when transducers to record load and displacement
are required.
3 Specification
Dimensions (approximate)
550 x 400 x 1230 mm (length x width x height)
Maximum vertical clearance
795 mm (platen down, crosshead up)
Minimum vertical clearance
200 mm (platen up, crosshead down)
Horizontal clearance
265 mm
Platen travel (total)
under power
by hand (rapid adjustment)
100 mm
30 mm
70 mm maximum
Speed range
1.27 mm/min
Weight
57 kg
Voltage
230VAC +10%
Frequency
50 or 60Hz, model dependent
Rated Power
250VA
4 Installation
4.1 Mechanical
DANGER: The CBR 50 is very heavy; it weighs more than 60 kg (132 lbs.). Do
not attempt to unpack, carry or move without proper equipment and sufficient
people to do so safely. Remember, always lift with your legs, not with your
back. If you have a history of back or cardiovascular problems, do not attempt
to unpack or lift the CBR 50.
The machine should be installed on a level bench capable of supporting CBR 50’s
gross weight, and with sufficient space for safe operation of the equipment. The
machine is provided with adjustable feet to compensate for any out of level, or
unevenness, of the bench surface.
4.2 Power Supply
Electrical safety
Warning: Before removing any covers or performing maintenance repair and service,
isolate from electrical supply by removing mains plug. Where mains supply is
required during these activities, only competent persons should perform the work.
Warning: Only use the power cable provided or an alternative that is suitably rated
for voltage, current and environment.
Check that the power supply is compatible with the requirements stated on the label
and connect in accordance with IEE regulations or to local requirements.
The power cable is coded as follows: -
Brown wire L Live or Power
Blue wire N Neutral
Green/Yellow wire E Earth or Ground
Note: exercise extreme caution when using the machine with wet hands.
Dry hands before operating machine.

CBR-Test 50
24-9150
Original Instructions 7 9901X0237 Issue 5
Portable Appliance Tests (PAT)
All ELE designed products are tested for electrical safety prior to sale.
An electrical safety test label is fitted (usually adjacent to the mains input socket).
Should no label be found, please contact ELE Service Department quoting the serial
number of the equipment.
Organisations have an obligation to ensure equipment is maintained and is safe for
use. Regular PAT testing is one means of ensuring equipment continues to be
electrically safe.
Important: do not connect PAT leads to sensitive components such as PCBs,
control switches and the like.
DO NOT FLASH TEST ELECTRONIC EQUIPMENT.
If in doubt as to the most suitable connection point (which will usually be an
earth stud or an external earth connection) contact ELE Service Department for
assistance.
5 Controls (refer to figure 1)
5.1 Mains ON/OFF thermal trip switch (at the rear of the machine).
The thermal trip will fail repeatedly if an electrical fault occurs within the machine. The
fault must be located and rectified before commencing work with the machine.
5.2 Mains POWER light.
This illuminates to indicate that there is mains power to the machine and the Mains
ON/OFF switch is switched to ON.
5.3 DOWN-OFF-UP switch
This controls the platen movement. In the central position the drive motor is OFF.
When the machine is switched to run either up or down, the corresponding direction
indicator light will illuminate.
Important: ensure that the motor has stopped before reversing platen direction.
This may take approximately 5 seconds. Failure to allow the motor to stop
when changing platen direction may cause severe damage to the machine.
6 Operation
6.1 A typical analogue set up is shown in figure 1.
6.2 It is suggested that any test should be started with the platen set approximately 10
mm from the bottom of its travel.
6.3 Wind the platen clockwise to the bottom of its travel and then back anticlockwise for
approximately 3 or four turns. This will then set the platen at approximately the
suggested height.
6.4 Fit an ELE load ring (or load transducer if using in conjunction with the DSU) of the
desired capacity to the crosshead.
6.5 Position the crosshead at the height required by firstly slackening the nuts on either
side above the crosshead and then adjust the crosshead to the required height by
using the adjustment nuts below the crosshead. To ensure that the crosshead is
level, the alignment studs on the lower nuts should be located centrally and at the
front of the machine. Tighten the locking nuts using a spanner.

CBR-Test 50
24-9150
Original Instructions 8 9901X0237 Issue 5
6.6 To ensure stability and central location of the penetration piston, the stability bar must
always be used. When using the maximum number of surcharge weights, it may be
necessary to clamp the stabilising bar to the threaded part of the columns. In this
case it is recommended that packing pieces (i.e. aluminium strips) be placed between
the stabilising bar clamp screws and the column threads to prevent damage to the
column threads.
6.7 Do not use the machine with the platen unscrewed by more than 70 mm (rapid
adjustment).
6.8 Switch the machine on using the ON/OFF switch at the rear of the machine (POWER
light illuminated).
6.9 Switch the machine to UP (Up arrow illuminated).
6.10 At the end of the test, switch to central OFF position and allow the motor to stop.
6.11 Important: ensure that the motor has stopped before reversing platen direction.
This may take approximately 5 seconds. Failure to allow the motor to stop
when changing platen direction may cause severe damage to the machine.
6.12 When the motor has stopped, switch the machine to down (Down arrow illuminated).
7 Maintenance
7.1 Warning: always disconnect the machine from the power supply before carrying out
maintenance work or making any adjustment.
7.2 Each month lightly oil the column threads and apply a small amount of oil to the
jackscrew. Access can be obtained by unscrewing the platen from the machine.

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Approved
Signatory
We, ELE International, Chartmoor Road, Chartwell Business Park, Leighton Buzzard, Beds,
LU7 4WG, England declare under sole responsibility that the following product(s) to which
this declaration relates is (are) in conformity with the provisions of:
89/392/EEC, 91/368/EEC, 93/44/EEC and 93/68/EEC Machinery Directive implemented in
the U.K. by S13073/1992 and S12063/1994.
Product Description
24-9150 series CBR-Test 50
Serial No.
(See details on
product identification
plate)
Notes: Readings taken with machine under load.
Measurements/recorded
noise level
Position A 51 dB
Position B 55 dB
Position C 54 dB
Position D 51 dB
Position E 54 dB
(Normal operator position)
Background
Noise level 38 dB
1 Metre
A
1 Metre
C
1 Metre
B
D
1 Metre
Noise Test Certificate
Issued By: ELE International
Date of Issue: 1 November 2001 ELE doc ref: 9901X0237
Date of Test: 1 November 2001
ELE International
Chartmoor Road,
Chartwell Business Park,
Leighton Buzzard, Beds,
LU7 4WG England
phone: + (0)1525 249200
fax: + (0)1525 249249
email: [e-mail]
http: //www.ele.co.uk
BS EN ISO9001: 1994 approved
Certificate number 860461
Noise tests were carried out using Test Meter, serial No.
N30863
which has been calibrated using calibrated standards
traceable to national standards of measurement.

DIRECTIVE ON WASTE ELECTRICAL & ELECTRONIC EQUIPMENT (WEEE)