Draper 52320 - Product Introduction and Safety; Intended Use and Technical Specifications; Health and Safety Information

3. Product Introduction
3.1 Intended Use
This device is designed to measure voltage, current and
resistance across AC and DC circuits. It may also be used to
test the voltage of batteries up to 9V and the forward
voltage drop of diodes. Any other application beyond the
conditions established for use will be considered misuse.
Draper Tools accepts no responsibility for improper use of
this product.
Part of our core range, this product is suitable for regular
use by enthusiasts and tradespersons alike.
Read this manual in full before assembling, operating or
maintaining the product, and retain it for later use.
3.2 Specication
Stock No.: 52320
Part No.: DMM7
Multimeter rating: CAT III, 1,000V
Dimensions: W 55 × H 112 × D 40 mm
Battery: 1 × 12V (Type 23A)
Weight: 70g
Circuit protection: Fuse and diode
DC voltage:
Input impedance: 1MΩ
Input protection: 500V
Measurement range: 200mV, 2,000mV, 20V,
200V, 500V
Accuracy: ±0.5% reading, ±2 digits
AC voltage:
Input impedance: 450K
Input protection: 500V RMS
Frequency range: 40–400Hz
Measurement range: 200V, 500V
Accuracy: ±2.0% reading, ±5 digits
DC current:
Overload protection: 200mA/250V fuse
Measurement range: 2,000A, 20mA, 200mA
Accuracy: ±2.0% reading, ±4 digits
Resistance:
Measurement range: 200Ω, 2,000Ω, 20kΩ,
200kΩ, 2,000kΩ
Accuracy: ±1.5% reading, ±4 digits
Diode check:
Test current: 1.6mA typical
Measurement range: 3.2VDC typical
Operating conditions:
Ambient temperature: 0 – 50°C
Humidity: <80%
4. Health and Safety Information
Important: Read all the Health and Safety instructions
before attempting to use this product. Non-compliance
may result in serious injury or death.
WARNING! Contact with live circuits can result in
severe electrical shock. When measuring voltage
above 30A, current above 10mA or AC power with
an inductive load, take care not to touch the
exposed contacts as they may give a serious
electric shock.
• ONLY trained and competent personnel may operate
this device.
• This product is safe to use on three-phase distribution
circuits with overvoltage of up to 1,000V.
• Use ONLY accessories and spare parts supplied by
Draper Tools.
− DO NOT use any other leads with this product than
those supplied. Contact Draper Tools for
replacement options if the leads become damaged.
− If the fuse must be replaced, use an identical item
with the same specication.
− If the battery must be replaced, use one with the
same specication.
• Observe all standard precautions and good practice
when working with live electrical currents.
• Inspect the product for damage before every use,
particularly the contact tips.
− DO NOT use this product if the device or probe
cables are damaged in any way or if there is
evidence of battery leakage.
− If battery acid comes into contact with your skin,
wash it o immediately with plenty of clean water.
− If battery acid comes into contact with your eyes,
ush them with plenty of clean water and seek
immediate medical attention.
• Ensure that the device is clean, dry and free from grease
before use.
• Ensure that the function dial is in the correct position
before switching on the device.
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