MARTINDALE SPC70 User manual

SPC70
SOUND LEVEL CALIBRATOR
INSTRUCTION
MANUAL
ALWAYS READ THESE INSTRUCTIONS BEFORE PROCEEDING
Thank you for buying one of our products. For safety and a full
understanding of its benefits please read this manual before use.
Technical support is available from 01923 441717 and
[e-mail].
CONTENTS
1 Safety Information 1
1.1 Meaning of Symbols and Markings 1
1.2 Precautions 1
2 Introduction 3
2.1 Inspection 3
2.2 Description 3
2.3 Accessories 3
2.4 Battery Installation 3
3 Operation 4
3.1 SPC70 Elements 4
3.2 Low Battery Indication 4
3.3 Testing / Adjusting a Sound Level Meter 4
3.4 Testing Considerations 5
4 Maintenance 6
4.1 Battery Replacement 6
4.2 Calibration 6
4.3 Cleaning 6
4.4 Repair & Service 7
4.5 Storage Conditions 7
5 Warranty 8
Specifications
1. SAFETY INFORMATION: Always read before proceeding.
REMEMBER: SAFETY IS NO ACCIDENT
These instructions contain both information and cautions that are
necessary for the correct operation and maintenance of this product.
It is recommended that you read the instructions carefully and ensure
that the contents are fully understood.
Particular attention should be paid to the Precautions and Technical
Specifications.
Please keep these instructions for future reference. Updated
instructions and product information are available at:
www.martindale-electric.co.uk
1.1 Meaning of Symbols and Markings
Caution - refer to instructions
Equipment complies with relevant EU Directives
End of life disposal of this equipment should be in
accordance with relevant EU Directives
1.2 Precautions
This product has been designed with your safety in mind, but please
pay attention to the following warnings and cautions before use.
Cautions
The SPC70 must only be used by a skilled and competent person
who is familiar with the relevant regulations, the safety risks involved
and the consequent normal safe working practices, and under the
conditions and for the purposes for which it has been constructed
and specified.
1 2
Before use check the unit for cracks or any other damage. Make
sure the unit is free from dust, grease and moisture. Do not use if
damaged.
The microphone cavity in particular must be protected from
exposure to water or dust as dust or contamination can alter the
performance characteristics of the unit. Always replace the unit in
its carry case when not in use.
Avoid severe mechanical shock or vibration and extreme
temperature.
To avoid possible corrosion from a leaking battery, remove the
battery if discharged, or when the unit is not in use for an extended
period.

3
2. INTRODUCTION
2.1 Inspection
Examine the shipping carton for any sign of damage. Inspect the
unit and any accessories for damage. If there is any damage then
consult your distributor immediately.
2.2 Description
The Martindale SPC70 has the following functions and features:
Complies with BS EN 60942, Class 2
94dB and 114dB output at 1kHz
Fits 1 inch and ½ inch (using adaptor) diameter microphones
Low battery indication
2.3 Accessories (included)
The SPC70 comes with the following accessories:
1 x 9V PP3 battery
½ inch microphone adaptor
Carry case
Instructions
2.4 Battery Installation
Refer to Section 4.1 (Battery Replacement) for the battery
installation instructions for the SPC70.
4
3. OPERATION
3.1 1 SPC70 Elements
3.2 Low Battery Indication
If the Power ON/Low Battery LED illuminates RED, the battery
needs replacing as output sound pressure level accuracy can no
longer be guaranteed (See section 4.1 Battery Replacement).
3.3 Testing/Adjusting a Sound Level Meter
Insert the cavity of the SPC70 over the microphone of the sound
1Power and low battery LED
2Power and output level switch
3Transducer assembly with 1 inch
cavity for microphone insertion
4½ inch microphone adaptor
5
Battery cover
5
level meter being tested / adjusted.
If the sound level meter has a ½ inch microphone, the ½ inch
microphone adaptor should first be inserted into the cavity of the
SPC70.
Set the SPC70 switch to the 94 dB or 114 dB position as required,
and set the controls of the sound level meter being checked /
adjusted in accordance with the manufacturer’s instructions and
power it on.
If required make any adjustment to the sound level meter in
accordance with the manufacturer’s instructions.
Switch off the SPC70 after use to conserve the battery.
3.4 Testing Considerations
Make sure the sound level meter microphone is properly seated into
the SPC70 microphone cavity. If the ½ inch microphone adaptor is
used make sure it is properly seated.
High ambient sources of noise or vibration may cause incorrect
readings. In such circumstances it is advisable to make any tests
with the SPC70 set to the 114 dB output sound pressure level.
Always use the certified values for the SPC70 when testing or
adjusting a sound level meter.
6
4. MAINTENANCE
4.1 Battery Replacement
The battery compartment is underneath the unit.
Undo the screw securing the battery cover and lift off the battery
cover.
Remove the old battery and replace with a new 9V battery (IEC
6LR61, NEDA 1604A), observing correct polarity.
Replace the battery cover and secure with the screw.
4.4 Calibration
To maintain the integrity of measurements made using your
instrument, Martindale Electric recommends that it is returned
at least once a year to an approved Calibration Laboratory for
recalibration and certification.
Martindale Electric is pleased to offer you this service. Please
contact our Service Department for details.
Email: [email protected]
Tel: [phone]
4.3 Cleaning
If contamination is found, clean with a damp soft cloth and if
necessary a mild detergent or alcohol. Do not use abrasives,
abrasive solvents, or detergents which can cause damage to the
unit. If a mild detergent is used, the unit should subsequently
be thoroughly cleaned with a water dampened soft cloth. After
cleaning, dry and allow to remain in a dry environment for 2 hours
before use.

7
4.4 Repair & Service
There are no user serviceable parts in this unit other than those
that may be described in section 4. Return to Martindale Electric
if faulty. Our service department will quote promptly to repair any
fault that occurs outside the guarantee period.
Before the unit is returned, please ensure that you have checked
the unit and battery.
4.5 Storage Conditions
The instrument should be kept with the battery removed, in warm
dry conditions away from direct sources of heat or sunlight, and
in such a manner as to preserve the working life of the unit. It is
strongly advised that the unit is not kept in a tool box where other
tools may damage it.
5. WARRANTY AND LIMITATION OF LIABILITY
This Martindale product is warranted to be free from defects in material
and workmanship under normal use and service. The warranty period
is 2 years and begins on the date of receipt by the end user. This
warranty extends only to the original buyer or end-user customer,
and does not apply to fuses, disposable batteries, test leads or to any
product which, in Martindale’s reasonable opinion, has been misused,
altered, neglected, contaminated, or damaged by accident or abnormal
conditions of operation, handling or storage.
Martindale authorised resellers shall extend this warranty on new and
unused products to end-user customers only but have no authority to
extend a greater or different warranty on behalf of Martindale.
Martindale’s warranty obligation is limited, at Martindale’s option, to refund
of the purchase price, free of charge repair, or replacement of a defective
product which is returned to Martindale within the warranty period.
This warranty is the buyer’s sole and exclusive remedy and is in lieu
of all other warranties, expressed or implied, including but not limited
to any implied warranty of merchantability or fitness for a particular
purpose. Martindale shall not be liable for any special, indirect, incidental
or consequential damages or losses, including loss of data, arising from
any cause or theory.
Since some jurisdictions do not allow limitation of the term of an implied
warranty, or exclusion or limitation of incidental or consequential
damages, the limitations and exclusions of this warranty may not apply
to every buyer. If any part of any provision of this warranty is held invalid
or unenforceable by a court or other decision-maker of competent
jurisdiction, such holding will not affect the validity or enforceability of
any other provision or other part of that provision.
Nothing in this statement reduces your statutory rights.
8
Reference conditions: Temperature: 23°C
Relative humidity: 50%
Atmospheric pressure: 1013hPa
Influence of ambient conditions: Temperature coefficient: 0.005dB / °C
Humidity coefficient: 0.005dB / % R.H.
GENERAL
Power: 1 x 9V, PP3 alkaline battery (IEC 6LR61, NEDA 1604A)
Battery life: 40 hours approx. (alkaline battery)
Low battery indication: Power ON/Low Battery LED illuminates red
Dimensions: 113 x 63 x 44mm
Weight: 170g approx including battery
Includes: 1 x 9V battery, ½ inch microphone adaptor, carry case, instructions
ENVIRONMENTAL
Operating conditions: Temperature: 0°C to 40°C
Relative humidity: 10 to 90% R.H.
Atmospheric pressure: 650 to 1080 hPa
Storage conditions: Temperature: -10°C to 50°C
Relative humidity: 0 to 70% R.H.
FUNCTIONALITY
Conforms to BS EN 60942 Class 2
EMC
Conforms to BS EN 55011, BS EN 61000-6-2
Output sound pressure levels: 94dB and
114dB rel 20μPa under reference conditions
Output frequency: 1000Hz ± 2%
Accuracy of sound pressure level: ± 0.5dB
Total harmonic distortion: <3%
Specification
SPC70
Sound Level Calibrator 18th Edition Testers
Accessories
Calibration Equipment
Continuity Testers
Electricians’ Kits
Environmental Products
Full Calibration & Repair Service
Fuse Finders
Digital Clamp Meters
Digital Multimeters
Labels
Microwave Leakage Detectors
Motor Maintenance Equipment
Multifunction Testers
Non-trip Loop Testers
Pat Testers & Accessories
Phase Rotation Testers
Proving Units
Socket Testers
Thermometers & Probes
Test Leads
Voltage Indicators
Specialist Metrohm Testers (4 & 5kV)
Specialist Drummond Testers
Check out what else you can get from Martindale:
Martindale Electric Company Limited
Metrohm House, Imperial Park, Imperial Way,
Watford, Hertfordshire, WD24 4PP, UK
Tel: [phone] Fax: [phone]
E-mail:[email protected]
Website: www.martindale-electric.co.uk
© 2016 Martindale Electric Company Ltd.
Registered in England No. 3387451. LITSPC70 rev1