UM-11, ERA-MERA

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XldUkio
UM-11
MULTIMETER
OPERATINQ
S^STRUCTIO^S
7 uA
i
FEATURES
1. Full meter overlood protection provided electron i colly with circuit
fuse for other circuit element.
2. Friction free patented tout band suspension* movement results in
outstanding shock absorption characteristics together with absolute
freedom from pointer "stickiness'* over life of movement.
3. Very low rotary switch contact resistance due to special top quoiity
component incorporated.
4. Frequency characteristics excellent due
to
use of matched "State
of the Art" semiconductor components, not selenium rectifiers.
5. DC Input Polarity switch provided. Measurements possible wirti un-
known
\npv1
polarity.
6. Carry handle provided. Using this, meter can be inclined to sny de*-
sired angle for best reading.
7. Meter mechanical "Zero Adjust" control of unique design. Allows
finger adjustment of mechanical zero without tools of cgy description.
8. 100,1000 n/V ULTRASENS1TIV1TY for DC voltage measurements,
31,600 Q/V for AC voltage measurement offers the highest sensitivity
coupled with lowest circuit loading of any instrument available in the
world market.
9.
39 meosuring ranges
10.Single rotory switeh far range selection
11. Legible easy to read scale with scale length of 100 mm.
12. Seporate compartment for botteries. Overload protection fuse plus
spare fuse extend optimum user versatility for quick fuse replacement
without necessity of opening instrument.
13. Outstanding aesthetics. Instrument is ultramodern in two-tone case.
This
will harmonize with ony technical decor.
14*
Top
accuracy.
2.0% for DC voltage and current,
3.0 %
for AC volt-
age and
current
and 20% for resistance.
15. Compoct proportions plus optimum meter exposure for fast measure-
ment. 190*133*62 mm (7.5" *5.25" *24").'
16. tigRtwe
ig
ht,
1 kg (2.2 lbs).
17. Easily corned, easily hondled. Human engineered for maximum prac-
tically in service. Housed in genuine bridle leather carry case. Instru-
ment con be operated in situ.
IS. Ultrastable shunt and multiplier resistors extending calibration ac-
curacy, despite tough environmental conditions, tor many years.
i
19. Meter scale is as depicted in F'g. 1.
20. Fig. 2 gives external appearance.
SPECIFICATION SUMMARY
DC Voltage Measuring Ronges:
150 mV '500 mV/1.5/
5/
15/50/150/500/1500 V.
AC Voltage Measuring Ranges:
1.5/5 15 50 150/250/500/1500 V.
ОС Current Measuring Ranges:
10 цA' 15 «A'500 uA/15 mA/500 mA/1.5 A/15 A.
AC
Current Measuring
Ronges:
15 A.
Resistance Measuring Ranges:
о* e table below.
Rt
t
stance Measuring Ronges:
Table A
Pes,stance Ra-ige
j Scoie Centre Vali
lue
Battery Voltage
0-20 №
0 - 200 Ш
0-2 МП
0-20 МП
0 - 200 МП
70
a
700 a
7 Ш
70 кП
700 кП
1.5 V
1.5 V
1.5 V
1.5 V
10 5 V
2
Ohmmeter Circuits Supply:
One battery Type RU
One bottery Type 6F22
Dec i be) Measuring Ranges Correspond to AC Voltage Measuring Ronges
as follows:
ТоЫе В
Decibel Measuring Ranges
Position of Switch
1
-20 dBm
*6
dBm
1.5 <>
1
-10 dBm
+ 16 dBm
5 V
15 V
j
0 dBm
+26 dBm
I
+ 10 dBm
+36 dBm
50 V
[
- 20 dBm
+46 dBm
150 V
+ 24 dBm
-50 dBm
250 V
j
-30 dBm
+56 dBm
500 V
1
+ 40 dB m
. . +66 dBm
1500 V
Accessories
Bach mstiument supplied with following items:
- Leather carry case with strap enabling operaror to effect measure»
ments
with meter suspended from neck.
- Two test leads wjth terminals ond prcds.
- Two alligator clips to be attached to test terminals.
- Spare fuse.
- Instruction manuoi.
APPLICATION
The instrument, is designed to measure the following electrical
parameters:
- DC volts
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