Duty cycle measurement
Range
0.1... 99.9%
Sensitivity: the minimum value of the effective voltage of 8 V
Pulse width: 100 µs – 100 ms
Frequency: 5 Hz to 99.99 kHz
11.2 Operating data
a)
measurement category according to IEC 61010-1 .......................................... CAT III 600 V
b)
type of insulation ........................................................................................... double, Class II
c)
degree of housing protection acc. to PN-EN 60529 ....................................................... IP65
d)
pollution degree .................................................................................................................... 2
e)
power supply of the meter ................................................................... 2 x AAA 1.5 V battery
............................................................................ 2 x AAA NiMH 1.2 V rechargeable battery
f)
diode test ..................................................................................... I = 0.3 mA, U
g)
continuity test ......................................................... I < 0.5 mA, acoustic signal for R < 50 Ω
h)
indication for range exceeding .............................................................................OL symbol
i)
low battery indication ................................................................................... symbol
j)
measurement rate ...................................................................2 measurements per second
k)
input impedance
▪ V AC ........................................................................................................................ >14 MΩ
▪ V DC .......................................................................................................................... ≥6 MΩ
l)
AC read-out ...............................................................................True RMS (A AC and V AC)
m)
display ............................................................................................... LCD, 4 digit with backlit
...................................................................................... 9999 counts with function indicators
n)
dimensions ................................................................................................. 121 x 67 x 45 mm
o)
meter weight .................................................................................................................. 206 g
p)
meter weight (without batteries) .................................................................................... 181 g
q)
fuses............................................................................ mA and µA range: 0.5 A / 600 V fast,
...................................................................................................... A range: 10 A / 600 V fast
r)
operating temperature ........................................................................................... +5..+40C
s)
operating humidity ........................................................................... < 80% for temp. ≤ 31C
............................................................................. decreasing linearly to 50% at temp. 40C
t)
storage temperature ............................................................................................. -20..+60C
u)
storage humidity ........................................................................................................... < 80%
v)
maximum operating altitude ....................................................................................... 2000 m
w)
Auto-Off function ............................................................................................ approx. 15 min
x)
compliance with the requirements of the following standards ............................EN 61010-1
............................................. EN 61010-031, EN 61010-2-033, EN 61326-1, EN 61326-2-2
y)
quality standard ...................................................................................................... ISO 9001
Resolution
0.1%
CMM-11 – USER MANUAL
Accuracy
(1.2 % m.v. + 2 digits)
< 3.3 V DC
0
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