MODEL RTC25
A breakthrough in design innovation brings you affordable relay testing. Beginning at under $4000 you can have a complete parametric test system offering full-screen data display, datalogging capability, unlimited file capacity and completely programmable test parameters and conditions. This new system is expandable to accommodate a wide variation in testing requirements from low-volume incoming inspection to full-blown relay production manufacturing.

The heart of the system is the RTC25 controller and RTC25 software. These items come bundled in a minimum configuration package. The single-card controller plugs into any free expansion slot of an IBM compatible personal computer. The accompanying software provides a powerful yet friendly interface to the operator.

Besides the personal computer, all that is required is a DC coil supply and RUT interface. These and other options available from Markenrich allow you to configure the system as you see fit for your particular application. With the basic system you can do the basic Group A parametric tests. Forthcoming adapters will let you test dielectric withstanding voltage, insulation resistance, and contact voltage drop at up to 10 amperes.

Software Features
An extensive window-driven interface provides the tools necessary to translate relay electrical characteristics into the appropriate test plan. A comprehensive selection of parametric tests with programmable conditions has been developed to make test plan definition a matter of selecting the desired one from a menu.
After the relay characteristics and the test sequence have been defined, measurement limits are assigned to each test. Test results are displayed to the operator as well as stored in disk files to facilitate off-line statistical processing. Device programs are kept in a separate directory and are limited only by available disk space.

Hardware Features
The RTC25 instrument-on-a-card has the following functional elements:
DC coil supply programmer
High-side coil switch
Low-level contact load supply
Contact level sense circuits
Precision time
14-bit fast analog-to-digital converter

All electrical connections to the RUT are provided on a 37-pin D-type subminiature connector. There is also an 8-pin ribbon connector for expansion devices.
Accessories

A compatible DC power supply that provides 80 VDC at up to 400 MA is available as is a relay test fixture interface. Other options give additional features like AC coil capability, high current contact load (up to 10 amperes), and high voltage dielectric tests.
RTA5 - Test Fixture Assembly
RTA7 - DC power supply
RTC25 Performance Specifications

Tests
Pull-In / Drop-Out Voltage (ramp or step)
Pull-In / Drop-Out Current (ramp or step)
Operate / Release Time
Contact Bounce Time
Contact Resistance / Voltage Drop
Contact Stabilization Time
Coil Resistance
Coil Current
Induced Coil EMF
Time Delay Operate / Release
Dielectric Withstanding Voltage (1)
Insulation Resistance (1)
Programmable Test Conditions
Coil Voltage
Coil Current
Coil Ramp Rate / Step Rate
Coil Current Soak Time
Contact Configuration
Contact Load Level
Contact Load Current (1)
Contact Settling Time
Dielectric Test Voltage (1)
Dielectric Test Dwell Time
Measurement Ranges (2)
Coil Voltage 0 to 80.00 VDC
Coil Current 0 to 800.0 MADC
Oper. / Rel. Time 0 to 163.83 MS
Bounce Time 0 to 163.83 MS
Time Delay 0 to 65.534 S
Contact Voltage Drop 0 to 80.00 MV
Contact Resistance (3) 0 to 3.000 Ohms
Parameters supported by optional expansion modules.
Accuracy on all measurements is 0.5% of measured value +1 LSB.
The internal contact load is 10 MA/30 MV open circuit.