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3B SCIENTIFIC® PHYSICS

 

 

 
 
 

Analogue Multimeter Escola 100   1013527 

 

Instruction sheet 

12/15 SD/JS 

 

 

 
 
 
 
 
 
 
 

Display with mirror scale 

Slotted screw for zero calibration 

Calibration trimmer for setting centre zero point 

Rotary switch to select the measurement range 

Four-way switch 

Voltage measurement socket 

Current measurement socket for up to 3 A and for 
continuity tests 

Current measurement socket for up to 10 A 

Safety ground socket 

 
 

1. Description 

The  ESCOLA  100  is  an  electronic  meter  with  a 
mirrored  dial  for  measurements  of  current  and 
voltage  involving analogue techniques for use in 
training, education and work placements. 

The  meter  can  handle  measurements  of  current 
and voltage values up to 10 A or 600 V and also 
allows the zero point to be set up in the centre of 
the  scale  for  measurement  of  DC  quantities  and 
for  continuity  tests  featuring  an  acoustic  signal. 
AC quantities with frequencies of up to 40 kHz can 
be measured. All the possible measuring ranges 
can  be  selected  by  means  of  a  single  rotary 
switch. 

The device is protected by a fuse and authorised 
for measurements on wiring installations in (CAT 
III), e.g. in distribution boxes/consumer units. The 

current  measuring  ranges  are  resistant  to  long-
term overloading up to 10 A. Generous protection 
of all the current ranges by means of semiconduc-
tor circuit breakers prevents the fuse blowing un-
intentionally in many cases. 

Switching  between  measuring  ranges  does  not 
break  any  circuits  connected  to  the  equipment. 
This  means  it  is  possible  to  carry  out  measure-
ments on voltage converters, for example, without 
causing induction surges. Resistance 

R

, conduct-

ance 

G,

 impedance 

Z

 and admittance 

Y

 can easily 

be determined as quotients of current and voltage 
measurements  thanks  to  the  non-interrupting 
switch  capability  without the  need  to change  the 
wiring. 

Summary of Contents for Escola 100

Page 1: ...C quantities and for continuity tests featuring an acoustic signal AC quantities with frequencies of up to 40 kHz can be measured All the possible measuring ranges can be selected by means of a single rotary switch The device is protected by a fuse and authorised for measurements on wiring installations in CAT III e g in distribution boxes consumer units The current measuring ranges are resistant ...

Page 2: ...igh frequency circuits where dangerous voltages may arise due to superimposition of components The authorised measuring range is not to be exceeded If measurements are made when the magnitude of the variable is unknown al ways select a large measuring range before shifting down to lower ones Make very sure that the voltage value be tween the measured contact and earth or be tween the ground socket...

Page 3: ...mined by forming various quotients involving simultaneous meas urements of current and voltage R U I below 1 mΩ above 10 MΩ S I U below 1 µS above 30 S Z U I below 1 mΩ above 10 MΩ 40 Hz 40 kHz Y I U below 1 µS above 30 S 40 Hz 40 kHz Overload protection Voltage ranges 600 V long term in all voltage ranges Current ranges 10 A of long term load ing in 3 A and 10 A ranges Electrical safety Safety sp...

Page 4: ...easuring leads Set the rotary switch to If the battery is sufficiently charged the needle will point to the following range indication If this is not the case the battery will need to be re placed immediately 6 3 Zero point calibration Set up the analogue multimeter either hori zontally or vertically Set the four way switch to Turn the rotary switch to 600 V Connect the common ground socket and th...

Page 5: ...itch to Select the required current measuring range to a range measured in mA or A 7 2 AC currents up to 3 A Set the four way switch to Select the required current measuring range to a range measured in mA or A 8 Current measurements up to 10 A The ESCOLA 100 may NOT be used to measure circuits connected directly to low voltage mains sources See page 2 of Measurement categories as specified in DIN...

Page 6: ... component to be tested Set the four way switch to and turn the rotary switch to If there is continuity of cur rent R 1 kΩ an audible signal will sound 11 Measuring current and voltage together The ESCOLA 100 may NOT be used to measure circuits connected directly to low voltage mains sources See page 2 of Measurement categories as specified in DIN EN 61010 1 The nominal voltage of the current sour...

Page 7: ...the casing again 12 3 Changing fuses Before opening the casing Turn off the Escola 100 Disconnect all measuring leads Unscrew the back of the casing Check the fuses Blown fuses should be replaced with ones of the same rating Close the casing again 13 Cleaning For cleaning use a soft cloth slightly mois te ned with alcohol or a brush Electrostatic charging of the display window can affect the measu...

Page 8: ......

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