PTD - 3G (Portable Testing Device) is a portable electronic device for on site meter testing, measurement of instantaneous values and profile recording. The device also provides some features of network quality monitoring. It is suitable for testing of single-phase and three-phase electricity meters on site, for energy quality and network parameters monitoring.
Wide range of functions, user - friendly interface, and sizeable graphical LCD applicable for diagram indication make the working with this device easy, accurate and attractive.

Application

On site testing of inductive and electronic single-phase and three-phase electricity meters

Power quality monitoring (according to the standard IEC50160)

Measurement of instantaneous values

Profile recording

Functions

Active, reactive and apparent energy measurement with error calculation (percentage):

• Measurement error of active energy (cosφ=1):
  • ±0,5 % with clamps A (0,5...100 A);
  • ±0,5 % with clamps B (1...1000 A);
  • ±0,5 % with clamps C (10...1500 A).

Active, reactive and apparent energy measurement with start / stop function

Meter accuracy, constant, wiring, no load/start condition testing

Active, reactive, apparent power measurement (per phase and aggregate):

• Measurement error:
  • ±0,5 % with clamps A (0,5...100 A)
  • ±0,5 % with clamps B (1...1000 A)
  • ±0,5 % with clamps C (10...1500 A)

Voltage measurement:

• Frequency range: 45...65 Hz;
• Error: ±0,2 % in range 50 ...265 V

Current measurement:

• Frequency range: 45...65 Hz;
• Current range: depends on current clamps;
• Measurement error: 
  • ±0,5 % with clamps A (0,5...100 A)
  • ±0,2 % with clamps B (1...1000 A)
  • ±0,5 % with clamps C (10...1500 A)

Power factor measurement (per phase and aggregate):

• Measurement range -1...+1;
• Resolution: 0,01

Frequency measurement:

• Range 45...65 Hz;
• Resolution 0,01 Hz

Harmonics analysis:

• Harmonic components from 2 to 30 in - percent of the fundamental wave;
• Numeric values of each harmonic component;
• Chart in a logarithmic scale

Vector diagram displaying

Measurement of angles:

• Voltage phase shift angles (per phase and aggregate), resolution: 0,1°
• Angles between voltage phases, resolution: 1°

Power quality measurement:

• Voltage variation measurement (according EN50160)
• Frequency variation measurement (according EN50160)
• Total harmonics distortion
• Power outages

Up to 64 records of on site meter testing results. Each record can include up to 4 test results (if all tests were performed by one request)

Up to 32 records of energy quality monitoring. Each record includes information about voltage, frequency variations

Up to 64 snapshots of instantaneous values (including vector diagram and harmonics)

Recording of up to 6 profiles for chosen measuring values with measurement period from 10 s to 60 min.

Features

Powered by measuring circuits

Wide current measuring range (500mA ... 1500A)

Sizeable graphical LCD indicator (128x128 dots) with backlight

Electronic test output

RS 232 or USB interface for connection to PC

Current loop interface according to IEC62056-31 for connection to AMR system