PRPT-16 is testing equipment used in burn-in testing and the +Ruggedness Testing of LED Drivers and SMPS.

Keywords: Burn-In Testing, Ruggedness Testing, Voltage Dips & Interruption Test, IEC-61547/61000-4-5, Endurance Test, Continuous Run Test, Switching Cycle Test

Features :

  1. Heavy Duty Dual Relay Capable of Switching at Loads of more than 24 Amps.
  2. Automatic and programmable Switching
  3. 16 Channel Wattmeter/ Ammeter with settable limits (both High and Low)

 Download PRPT-16 Catalog

Why is it required?

Normally user is expected to provide 230 Volts to a bulb/driver.

But it is specified to work from typically 130 V to 270V. Semiconductor-based equipment is tested at these extreme voltages and that too by switching at different voltages and OFF state.

To do this manually you need:

1- A Person or a Relay Switching as per requirement

2- Wattage Meter at each channel and a person to determine if it has gone out of limits.

PRPT-16 helps you automate this task by the easily customizable switcher and 16 channel wattmeter.

You only need to provide the power/Voltage as per your requirement and initial configuration.

Here is a typically required Ruggedness test –

Required Ruggedness Test for LED Drivers

Sr. No.TestTest ConditionInstrument
18 Hrs Continuous Run Test at Full LoadAt Nominal VoltagePRPT-16
28 Hrs Continuous Run Test at Full LoadAt minimum Operating VoltagePRPT-16
38 Hrs Continuous Run Test at Full LoadAt Maximum Operating VoltagePRPT-16
4ON/OFF Test 1Hrs at Minimum Operating Voltage10 Sec ON and 5 Sec OFFPRPT-16
5ON/OFF Test 2Hrs at Nominal Voltage10 Sec ON and 5 Sec OFFPRPT-16
6ON/OFF Test 1Hrs at Maximum Operating Voltage10 Sec ON and 5 Sec OFFPRPT-16
7High Voltage Run Test @320Vac30 MINPRPT-16
8High Voltage Run Test @350Vac30MINPRPT-16
9High Voltage Run Test @370Vac30MINPRPT-16
10High Voltage Run Test @400Vac10MINPRPT-16
11High Voltage Run Test @430Vac5MINPRPT-16
12High Voltage Run Test @440Vac4MINPRPT-16
13High Voltage ON/OFF Test @320Vac50 TimesPRPT-16
14High Voltage ON/OFF Test @350Vac50 TimesPRPT-16
15High Voltage ON/OFF Test @370Vac20 TimesPRPT-16
16High Voltage ON/OFF Test @400Vac20 TimesPRPT-16
17High Voltage ON/OFF Test @430Vac10 TimesPRPT-16
18High Voltage ON/OFF Test @440Vac5 TimesPRPT-16
19Square Wave Inverter Run Test1HrsOther
20Square Wave Inverter ON/OFF Test10 TimesOther
21Single Phase Generator Run Test1HrsOther
22Single Phase Generator ON/OFF Test10 TimesOther
23Oven Test @Nominal Voltage2HrsOther
24Oven Test @Minimum Operating Voltage1HrsOther
25Oven Test @Maximum Operating Voltage1HrsOther
26Confirmation of Start-up Voltage50 TimesOther
27Check Under Voltage Cut Off50 TimesOther
28Check Under Voltage Cut-IN50 TimesOther
29Check Over Voltage Cut-off50 TimesOther
30Check Over Voltage Cut-IN50 TimesOther
31Voltage Dips and Interruption Test  (IEC-61547/61000-4-5) PRPT-16

You can download the above requirement as pdf here

Note: PRPT-16 can be used to perform most of the above-specified tests.

Test 19 to 30  have to be done manually through variac or through customized power sources.

These tests are required by most of the companies for R&D and Quality Testing.

You can download the Required Ruggedness Testing for LED Driver on below link –

The user can input two voltage sources. The switching of these voltages can be done using the rotatory switch.

Display –

It has an LCD display for showing individual loads of parameters, settings, and switching voltages.

LEDs indication

PRPT-16 has 16 set of green and red LEDs load pass/fail indication. If the load is connected to any channel related channel green LED will ON. If Load is failed than related red LED will ON.  Load limits can be set using the Software interface for program mode or can be entered using buttons of PRPT-16.


Three Buttons are given. UP/ DOWN are used for scrolling display and a set button is used to enter the setting.

Rotatory Switch

Eight steps Rotatory switch is provided for easy navigations on testing. The OFF step is provided between two steps for safety purposes.

1- Prog – In this mode, voltage switching will be done as entered by the software.

2- Rapid – In this mode, switching will be done as set in PRPT-16 using buttons.

3- SV1-     In this mode, only relay one will activate and a voltage source connected to this relay will apply.

4- SV2-    In this mode, only real two will active and a voltage source connected to this relay will apply.

5- Off-  No voltage at the output

Program Mode Feature –

PRPT-16 Saves the step as they completed. So if due to any reason meter goes off then it will start testing from step from where it goes OFF.

Eg. PRPT-16 goes off at step 6 now again when we start the PRPT-16 it will test from step 6 in program mode.

USB Port –

For Software interfacing.

Software –

In Software You can set the required switching cycle.

For example, we have to do the 4th test given in the ruggedness testing requirement table.

 So we have to do ON/OFF Testing for 1Hrs at minimum Operating Voltage. Switching Cycle is 10Sec ON and 5 Sec Off.

We have made this cycle in Software as below –

In the above software, image user can set the switching timings will relay operations. We have to ON/ OFF the

The switching cycle can be analyzed on the above graph.

For reporting, we can add some information on the testing product as below –

We can also generate a pdf report based on the filled information in the software.

This data will transfer to PRPT-16 and can be run on prog mode.

 Download PRPT-16 Catalog

1.  PRPT16 Introduction with Production Testing

  You can view the above video on YouTube at video contains most of the queries related to PRPT-16 like:-How to understand the display parameters of PRPT16.How to view AC parameters.How to save data in PRPT16 internal memory and Pen-drive also.How to connect load with PRPT-16.How to test BULBS or AC Loads by PRPT16.What are PASS and FAIL status?How to know FAIL parameters if PRPT16 shows FAIL status.How to set Lower & Upper limits in PRPT16.What is Log ON Connect and How to use it?Which type of files are generated by PRPT-16 in Pen-drive and what is the use of these files.