NP TECHNOLOGIES

Bangalore, Karnataka

Distinctive features of the device :

• High measurement accuracy on a real transformer - [unlike analogues MIKO-7 shows a claimed accuracy not only in laboratory conditions, but also on the operating facility]
• Automating the process of measuring the resistance of the transformer windings due to the autoranging resistance;
• Long term operation of the device in extreme temperature range of modes due to automatic temperature maintenance radioelements measuring unit;
• Three types of instrumentation cables of different lengths and with different values capture clips "crocodile", allowing measurements both from the ground and cover with transformers of all voltage classes – the client is required to choose a cable with ordering the device;
• small time measurements;
• Wide measuring range - [10mkOm - 1K];
• Small error (high accuracy) - [± 0, 1%];
• Wide operating temperature range - [-20 º C ÷ +40 º C];
• High degree of protection - [3 degree of protection from EMF self-induction exceeding measuring current polarity of the battery cable ends];
• 2 Kinds of power- [from the mains and car battery];
• Dimensions 270 x 250 x 130 mm, weight 3.2 kg

Additional features of the device :

• Definition of transformer condition (defective or not) - [automatic calculation of relative deviations between the winding resistances];
• Determine the exact location of the defect in transformer - [recount linear resistance windings connected in delta or star in the resistance of the phase windings];
• Determine whether the performance of the transformer nameplate - [recount resistance at the current temperature resistance with temperature nameplate];
• Calculation of the temperature of the transformer;
• archive measurements on a computer - [connection to a computer via a cable USB, copying the measurements to the computer];
• DRM method: rapid diagnosis device status LTC in all weather conditions;
• diagrams of the estimated construction contactors, without opening the tap transformer;
• Chart analysis of the measured object directly on the device;
• Positioning problems RPN example, break detect current-limiting resistors, poor voter contact and more.
• Measurement range of the milliohmmeter, Om………………….10mkOm – 10kOm
• Current, …………………………………….…………………………… 0, 015 - 10, 0
• Range of working temperature , oC……………………………………….…-20 − +40
• Dimensions (length*width*height), mm………….…………………….270*250*130
• Weight (without cables), kg…………………………….…………………………….3.2

Details :

• Test Function:Cs-Rs, Cs-D, Cp-Rp, Cp-D, Lp-Rp, Lp-Q, Ls-Rs, Ls-Q, G-B, Rs-Q, Z-r, Z-d   
• Auto, Hold and Nominal ranging. Total of 9 ranges.
• Includes Internal, Manual, External and Bus Trigger
• Correction Function; Comparator Function (Sorting); Limit Setup; BIN count; Sweep Parameter; Comparator Function of List Sweep
• Equivalent circuit: series and parallel
• Measurement assistance: up to 10 setup conditions can be written to/read from the built-in non-volatile memory

Measuring Ranges            

• L    0.00001µH 9999.99H 
• C    0.00001pF 99.9999mF
• R, X, Z    0.00001Ω 99.9999MΩ
• B, G    0.01nS 999.999S
• D    0.00001 9.99999
• Q    0.00001 99999.9
• d    -179.999° 179.999°   
• r    -3.14159 3.14159

Test Signal Level   

• 0.01V2.00Vrms, 0.01V resolution
• Test signal accuracy: ±(10%+10mV)

Output Impedance

• 30Ω, 50Ω and 100Ω
• Accuracy: 5%

Specifications :

• Range of measured resistances Rx, mOhm  .0-20000
• Limit of absolute basic error in measurement, mOhm .±(1+0.01*Rx)
• Weight of microohmmeter, kg 3.6
• Dimensions, mm  210*235*75
• Operating temperature range, C -15 ÷ +40