PICO TA189 User Manual

TA189
AC / DC
CURRENT CLAMP
User Guide
SAFETY
The following symbols appear on the product:
Attention! Refer to manual.
Application around and removal from
UNINSULATED HAZARDOUS LIVE conductors
is permitted.
Double/reinforced insulation.
Complies with the relevant European standards.
Do not dispose of this product as unsorted
municipal waste. Contact a qualified recycler for
disposal.
Read all instructions completely before using
this product.
To avoid electric shock:
• Use caution during installation and use of this product.
High voltages and currents may be present in circuit under
test.
• This product must be used only by qualified personnel
practising applicable safety precautions.
• Do not use product if damaged.
• Always connect clamp to display device before it is installed
around the conductor.
• Always ensure that the clamp is removed from any live
electrical circuit, and that leads are disconnected before
removing the battery cover.
• Do not hold the clamp anywhere beyond the tactile barrier
see Fig. 1.
SPECIFICATION
Electrical data
(All accuracies stated at 23°C ± 1°C)
Nominal current ................. 30 A AC
PEAK
Measuring range (s) ........... 30 A
Overload capacity .............. 500 A (60 s)
Output sensitivity ................ 100 mV/A
Accuracy ............................ ± 1% of reading ± 2 mA
Resolution .......................... ± 1 mA
Gain variation ..................... ±0.01% of reading/°C
Frequency range
Power supply .....................
Load impedance (minimum) > 100 k
General data
Conductor size ...................
Output cable and connectors 2 m long coax terminated with
Operating temperature .......
Storage temperature with
battery removed .................
1)
Accuracy quoted is for conductor in centre of aperture
1
0.5
0
-0.5
-1
-1.5
-2
-2.5
-3
1
3
4
7
9
or DC
1)
............. DC to 100 kHz (0.5 dB)
9 V Alkaline battery
PP3, MN 1604
or IEC6LR61
and 100 pF
25 mm diameter
safety BNC connector
0°C to +50°C
-20°C to +85°C
Typical frequency plot
10 100 1000 10000 100000
Frequency (Hz)
2
4 5
6
8
1. Jaws
2. Conventional current direction
3. Tactile barrier
4. Battery cover
5. Battery cover screw
6. Jaw trigger
7. On/off switch
8. Auto zero button
9. LED
Fig. 1.
0
-5
-10
-15
-20
Gain
Phase