1) Frequency range ............. DC to 100 kHz (0.5 dB) SAFETY Power supply ..................... 9 V Alkaline battery PP3, MN 1604 The following symbols appear on the product: or IEC6LR61 Load impedance (minimum) > 100 k and 100 pF Attention Refer to manual. General data Application around and removal from UNINSULATED HAZARDOUS LIVE conductors Conductor size ................... 25 mm diameter is permitted. Output cable and connectors 2 m long coax terminated with TA189 safety BNC connector Double/reinforced insulation. Operating temperature ....... 0C to +50C Storage temperature with battery removed ................. -20C to +85C Complies with the relevant European standards. AC / DC 1) Do not dispose of this product as unsorted Accuracy quoted is for conductor in centre of aperture municipal waste. Contact a qualified recycler for CURRENT CLAMP 1 disposal. 0 0.5 Read all instructions completely before using 0 -5 this product. -0.5 -1 -10 To avoid electric shock: -1.5 Use caution during installation and use of this product. -2 -15 High voltages and currents may be present in circuit under -2.5 Typical frequency plot test. -3 -20 10 100 1000 10000 100000 This product must be used only by qualified personnel Gain practising applicable safety precautions. Frequency (Hz) Phase Do not use product if damaged. Always connect clamp to display device before it is installed around the conductor. 1 2 Always ensure that the clamp is removed from any live electrical circuit, and that leads are disconnected before 3 removing the battery cover. 4 5 4 Do not hold the clamp anywhere beyond the tactile barrier 6 see Fig. 1. 7 SPECIFICATION 8 9 1. Jaws Electrical data 2. Conventional current direction 3. Tactile barrier (All accuracies stated at 23C 1C) 4. Battery cover Nominal current ................. 30 A AC or DC 5. Battery cover screw PEAK 6. Jaw trigger Measuring range (s) ........... 30 A 7. On/off switch Overload capacity .............. 500 A (60 s) 8. Auto zero button Output sensitivity ................ 100 mV/A 9. LED Accuracy ............................ 1% of reading 2 mA User Guide Resolution .......................... 1 mA Gain variation ..................... 0.01% of reading/C Fig. 1. Gain in dB (wrt 100 Hz) Phase shift in degrees Unclamp the clamp from the conductor, turn it off using the OPERATING INSTRUCTIONS WARRANTY on - off switch and disconnect the output leads from external Switch On equipment. Your current clamp is guaranteed for one year from the date of purchase against defective material or workmanship. If the Loosen the captive screw which secures the battery cover. Lift When the clamp is switched on to the required measuring clamp fails during the warranty period, we shall, at our the cover through 30 and pull it clear of the clamp body as range, the green LED will illuminate. The LED starts flashing discretion, repair or replace it with a new or reconditioned unit shown in Fig. 1. Replace the battery, re-fit the battery cover when the battery voltage is too low for normal operation and provided we are satisfied that the failure is due to defective and fasten the screw. warns the user that it requires changing. This procedure is material or workmanship. To make a claim under warranty, described below. Fit only 9 V battery type PP3 Alkaline (MN 1604). return the clamp to us, postage prepaid, with a description of the defect. The use of a battery other than that specified Auto Zero SAFETY STANDARDS invalidates this warranty. The output zero offset voltage of the clamp may change due to Goods alleged by the buyer to be defective shall not form the EN 61010-1:2010 thermal shifts and other environmental conditions. Select the subject of any claim for injury, loss, damage, or any expense required measuring range and, to null the output voltage, EN 61010-2-032:2012 howsoever incurred, whether arising directly or indirectly from depress the Auto Zero button. Ensure that the clamp is away such alleged defects other than death or personal injury 300 V Cat III, Pollution Degree 2 from the current carrying conductor while the clamp is being resulting from the sellers negligence. nulled. EMC Standards 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 supplied or that Current Measurement EN 61326-2-2:2006 they will be suitable for any particular purpose or for use under ROHS and WEEE compliant specific conditions, notwithstanding that such purpose or 1. Switch on the clamp using the on/off switch and check that This product is designed to be safe under the following the green LED is lit. conditions may be made known to the seller. conditions: 2. Connect the output lead to the oscilloscope. 3. Zero the clamp using the Auto Zero button. - indoor use 4. Clamp the jaws of the clamp round the conductor ensuring a good contact between the closing faces of the jaws. - altitude up to 2000 m 5. Observe and take measurements as required. Positive - temperature 0C to +50C output indicates that the current flow is in the direction shown by the arrow on the clamp. - maximum relative humidity 80% for temperatures up to 31C decreasing linearly to 40% relative humidity at 50C. Auto Power OFF Use of the clamp on uninsulated conductors is limited to In order to save battery life, the clamp will automatically switch 300 V AC or DC. and frequencies below 1 kHz. RMS itself off after approximately 10 minutes. To disable the Auto power off function, switch off the clamp and switch on while Safety in its use is the responsibility of the operator who must pressing the Auto Zero button. The red LED will illuminate and be a suitably qualified or authorised person. Ensure that your Pico Technology Limited the clamp will stay ON until switched off again. fingers are behind the protective barrier (see Fig. 1) when using the clamp. Always inspect the clamp and lead for James House Battery Replacement damage before use. Colmworth Business Park The green or red LED will flash when the minimum operating St Neots To avoid electric shock, keep the clamp clean and free of voltage is approached (refer to Fig. 1). Use the following surface contamination. Cambridgeshire procedure: PE19 8YP United Kingdom Use a cloth moistened with isopropyl alcohol to clean the SAFETY WARNING clamp. Ensure that the clamp is completely dry before using. Before removing the battery cover, ensure that the Tel: +44 (0) 1480 396395 clamp is disconnected from the oscilloscope and Fax: +44 (0) 1480 396296 remote from any live electrical circuit. Technical Support: support picotech.com