Philips pm2521 - Page 27

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3 .
3.1.
3.2.
3.2.1.
3.2.2.
3.2.2.1.
3.2.2.2.
ACCESSORIES
ACCESSORIES SUPPLIED WITH THE PM 2521 (Fig. 1, page 126)
— Measuring leads with testpins PM 9266 (1)
— Mains cable (2)
— Spare fjjse’ lx 125 mA FAST 110 V ... 240 V mains (3)
— Operating manual (4)
Note:
The spare fuse is located in the mains socket at the rear of the PM 2521.
OPTIONAL AVAILABLE ACCESSORIES
Summary
— High tension probe PM 9246
— High current shunt PM 9244 or current transformer PM 9245
— Data hold probe PM 9263
— Pt-100 temperature probe PM 9249
— High frequency probe PM 9210 and accessory set PM 9212
Specifications of the optional accessories
High Tension (HT) probe PM 9246 (Fig. 2, page 126)
The HT probe PM 9246 is suitable for measuring direct voltages up to 30 kV. The PM 9246 may be used for
measuring instruments with an input impedance of 100 MJ2, 10 MJ2 or 1,2 MJ2.
(Selectable on the probe).
Maximum voltage
Attenuation
Input impedance
Accuracy
Relative humidity
30 kV
lOOOx
600 MS2 ± 5 %
± 3 % (Excluding accuracy of the PM 2521)
20 % ... 80 %
Note:
Pay attention to safe earth connections
Shunt PM 9244 and Current transformer PM 9245 (Fig. 3 and Fig. 4, page 126)
Shunt PM 9244 Current transformer PM 9245
With the PM 9244 it is possible to measure direct With this transformer it is possible to
and alternating currents (max. 1 kHz) up to 31,6 A measure alternating currents over
10 A up to 100 A
Current range
Output voltage
Accu racy
(Excluding accuracy
of the PM 2521)
Dissipation
Dimensions
10 A and 31,6 A
100 mV and 31,6 mV
100 mV + 10%
31,6 mV ±3%
Max. 3,16 W
Height 55 mm
Width 140 mm
Depth 65 mm
Transfer factor
Transfer error
Frequency range
Maximum secondary
voltage loss
Maximum voltage
with respect to earth
lOOOx (100 A = 100 mA)
± 3 % (Excluding accuracy
of the PM 2521)
45 Hz to 1 kHz
200 mV
400 V ac.
Before measuring, connect the current-
transformer to the instrument.
Avoid contamination of the.CQre-parts.