Desk-top Pressure Calibration Pumps (Patent number: 200920108327.5) are made up of top quality imported stainless steel and aluminum materials. They adop advanced Germany sealing technology and sealing components, easy to use . They are ideal instruments to calibrate pressure gauges, pressure transmitters, pressure sensors and other pressure instruments. Spiral lifting gear pressure, easy control and convenient, Laboratory available, Pressure range up to 250Mpa is customized. Pressure Range:(-0.9-700)bar,(-0.09-70)Mpa,(-13-10000)psi. Adjustment Resolution:0.01bar (1kPa). Dimention: (440×370×240) mm. Net weight:18Kg. Media:Oil. Accessories: sealing component(10pcs),plug(3pcs),cranking handle(1pcs),drain-pipe(1pcs).

Description A range of ring type current transformers suitable for primary currents from 1A-5000A with 1A or 5A secondaries. This standard range of measuring and protective current transformers is available as resin coated or tape wrapped. Application Suitable for measuring or protective applications with accuracies of class 0.2, 0.5, 1, 3, 5P10, 10P10 etc. Primary currents from 1A - 5000A. Measuring or Protective types. Base or busbar mounting. Choice of sizes to customers specification.   Conforms to IEC 44-1, IEC 185, and BS7626. Rated system voltage 0.72 / 3kV. Ambient temperature range -30ºC to 85ºC. Frequency Range 5-60Hz. Insulation Level, 3kV (50Hz for 1 minute.   Our production facilities allow automated printing of test cetificates for individual current transformers, if requested.   Ring type current transformers can be provided with sealable terminal covers. Please specify on your order if  required.   When choosing the VA of a current transformer, the burden of the instrument should be taken into account. For example, moving iron panel meters require a VA of less than 2.5 . Where possible...