SAFETY
The following symbols appear on the product:Attention! Refer to Manual.

TA167
AC / DC
CURRENT PROBE

Application around and removal fromUNINSULATED HAZARDOUS LIVE conductors ispermitted.
Double/Reinforced Insulation.
Complies with the relevant European standards.
Do not dispose of this product as unsorted
municipal waste. Contact a qualified recycler fordisposal.

............................................. IRMS x f ≤ 400,000
Power supply .......................... 9 V Alkaline battery............................................. PP3, MN 1604............................................. or IEC6LR61
Load impedance (minimum) ..... > 100 k and  100 pF

General dataConductor size ........................ 32 mm diameter
Output cable and connectors .... 2 m long coax terminated............................................. with safety BNC connector
Operating temperature ............ 0 °C to +50 °C
Storage temperature withBattery removed ..................... -20 °C to +85 °C
1)Accuracy quoted is for conductor in centre of aperture

To avoid electric shock:1• Use caution during installation and use of this product; highvoltages and currents may be present in the circuit undertest.

3• This product must be used only by qualified personnel
practicing applicable safety precautions.

2446• Do not use the product if damaged.
• Always connect the probe to the scope device before
installing it around the conductor.

789• Do not hold the probe anywhere beyond the tactile barrier:see Fig. 1.

SPECIFICATIONElectrical data
(All accuracies stated at 23 °C ± 1 °C)

User’s Guide

Nominal current ...............
Measuring range (s) ..........
Overload capacity .............
Output sensitivity ..............
Accuracy1) (0 – 200/1500 A)
Accuracy1) (1500 – 2000 A)
Resolution ........................
Gain variation ...................

200 / 2000 A AC peak or DC
200 / 2000 A
2200 A (60 s)
10 / 1 mV/A
± 1% of rdg ± 100 / ± 500mA± 5% of reading± 100 / ± 500 mA± 0.15% of reading/°C

Frequency range .................... DC to 20 kHz (-1 dB)

Fig 1
1.
2.
3.
4.
5.
6.
7.
8.
9.

Jaws
Conventional current direction
Tactile Barrier
Battery coverBattery cover screw
Jaw trigger
ON/OFF and Range switch
Auto zero button
LED5OPERATING INSTRUCTIONS
Switch On
When the probe is switched on to the required measuring
range, the green LED will illuminate. The LED starts flashingwhen the battery voltage is too low for normal operation andwarns the user that it requires changing. This procedure is
described below.

Auto ZeroThe output zero offset voltage of the probe may change due tothermal shifts and other environmental conditions. Select therequired measuring range and to null the output voltage
depress the Auto Zero button. Ensure that the probe is awayfrom the current carrying conductor whilst the probe is being
nulled.

Unclamp the probe from the conductor, turn it off using the On- Off switch and disconnect the output leads, from externalequipment.
Loosen the captive screw which secures the battery cover. Liftthe cover through 30° and pull it clear of the probe body as
shown in Fig 1. Replace the battery and re-fit the battery coverand fasten the screw.
Fit only Type 9 V PP3 Alkaline (MN 1604).

SAFETY STANDARDSEN 61010-1
EN 61010-2-032

Current Measurement

300V Cat III, Pollution Degree 2

1.

EMC Standards

2.
3.
4.
5.

Switch on the probe by selecting the required measuring
range and check that the green LED is lit.
Connect the output lead to the oscilloscope,
Zero the probe using the Auto Zero button.
Clamp the jaws of the probe round the conductor ensuring
a good contact between the closing faces of the jaws.
Observe and take measurements as required. Positive
output indicates that the current flow is in the direction
shown by the arrow on the probe.

Auto Power OFF
In order to save battery life, the probe will automatically switch
itself off after approximately 10 minutes. To disable the Autopower off function, Switch Off the probe and Switch On whilstpressing the auto zero button. The red LED will illuminate andthe probe will stay ON until switched off again.

EN 61326-2-2
ROHS and WEEE compliant
This product is designed to be safe under the following
conditions:

SAFETY WARNING
Before removing the battery cover,ensure that the probe is disconnected from theoscilloscope and remotefrom any live electrical circuit.

Your current probe is guaranteed for one year from the date ofpurchase against defective material or workmanship. If theprobe fails during the warranty period, we shall, at ourdiscretion, repair or replace it with a new or reconditioned unit
provided we are satisfied that the failure is due to defective
material or workmanship. To make a claim under warranty,
return the probe to us, postage prepaid, with a description of
the defect.
Goods alleged by the buyer to be defective shall not form thesubject of any claim for injury, loss, damage, or any expense
howsoever incurred, whether arising directly or indirectly fromsuch alleged defects other than death or personal injury
resulting from the seller‘s negligence.
No condition is made or to be implied, nor is any warranty
given or to be implied as to the life or wear of goods suppliedor that they will be suitable for any particular purpose or for
use under specific conditions, notwithstanding that suchpurpose or conditions may be made known to the seller.

- indoor use- altitude up to 2000 m- temperature 0 °C to +50 °C- maximum relative humidity 80% for temperatures up to31 °C decreasing linearly to 40% relative humidity at50 °C.
Use of the probe on uninsulated conductors is limited to
300 V AC RMS or DC. and frequencies below 1 kHz.

Battery Replacement
The green or red LED will flash when the minimum operating
voltage is approached. Refer to Fig 1. Use the following
procedure:

WARRANTY

Safety in its use is the responsibility of the operator, who must
be a suitably qualified or authorized person. Ensure that yourfingers are behind the tactile barrier (see Fig. 1) when using
the probe. Always inspect the probe and lead for damage
before use.
To avoid electric shock, keep the probe clean and free ofsurface contamination.
Use a cloth moistened with isopropyl alcohol to clean the probe.
Make sure that the probe is completely dry before using it.

Pico Technology Limited
James House
Colmworth Business ParkSt Neots
Cambridgeshire
PE19 8YP
United Kingdom
Tel:
Fax:
Technical Support:+44 (0) 1480 396395+44 (0) 1480 396296
support@picotech.com