Megger MPU690 Specifications
MPU690
Proving Unit
MPU690
Proving Unit
5 stepped nominal output voltages
Automatic operation
High output power suitable for test lamps
Extended battery life
Magnetic base
Rugged case
DESCRIPTION
Two pole voltage testers generally have a self testing
function to check the unit is working and does not have
exhausted batteries. This test does not necessarily indicate
the instrument will safely show a voltage measurement,
particularly voltages in excess of 50 volts. Two pole voltage
testers are recommended to be tested with a known live
voltage source prior to making a voltage measurement on a
circuit.
The Megger MPU690 proving unit provides an alternative
portable battery operated voltage source that can verify the
correct functioning of a voltage tester.
The device safely generates a range of voltages from 50
to 690 volts in five steps. At switch on, the unit initially
generates 690 volts then after a short period, slowly ramps
down through each voltage step until the device switches off.
The individual voltage steps are indicated by an LED with a
power indicator LED that also indicates an exhausted battery.
The MPU690 features automatic power on when voltage
tester probes are inserted into the output terminals,
generating a 50 Hz output voltage which simulates the AC
mains supply.
APPLICATION
The generous output power rating and the spacing of the
output terminals allows the MPU690 to verify the correct
operation of voltage indicators that utilise a lamp for
operation. Although the unit has a high output the unit has
exceptionally good battery life.
The rugged case of the MPU690 features a magnetic base for
convenient use.
N.B. The MPU690 is not recommended for use with multimeters.
SPECIFICATIONS
Output voltage 50 - 690 volts in five stages: 50 V,
100 V, 230 V, 400, 690 V
Power output 10 W max.
Power On / Off Automatic on when probes are
inserted into output terminals / auto
off
Indicators 5 LEDs for output voltages plus power
LED
Power supply 6 x AA / LR06 alkaline batteries
Environmental
Operating temperature -10°C - +40°C
Humidity 70% Rh
Dimensions
130 mm (W) x 68 mm (H) x 48 mm (D)
MPU690
Proving Unit
Weight
346 g
ORDERING INFORMATION
Item (Qty) Cat. No.
MPU690 Proving unit 1001-561
UK
Archcliffe Road Dover
CT17 9EN England
T +44 (0) 1304 502101
F +44 (0) 1304 207342
UKsales@megger.com
UNITED STATES
4271 Bronze Way
Dallas TX 75237-1019 USA
T 800 723 2861 (USA only)
T +1 214 333 3201
F +1 214 331 7399
USsales@megger.com
OTHER TECHNICAL SALES OFFICES
Valley Forge USA, College Station USA,
Sydney AUSTRALIA, Täby SWEDEN, Ontario
CANADA, Trappes FRANCE, Oberursel
GERMANY, Aargau SWITZERLAND, Kingdom
of BAHRAIN, Mumbai INDIA, Johannesburg
SOUTH AFRICA, Chonburi THAILAND
CERTIFICATION ISO
Registered to ISO 9001:2008 Cert. no. Q 09250
Registered to ISO 14001-2004 Cert. no. EMS 61597
MPU690_DS_en_V01
www.megger.com
Megger is a registered trademark
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