Various measurement and automation tasks
The universal testing device is intended for a diverse range of measurement and automation tasks in laboratories and in test engineering. Thermocouples, RTDs and other sensors can be directly connected. Electrical AC/DC values can also be acquired with the universal testing device. Integrated signal conditioning makes measurement transducers unnecessary. All analog inputs can be used universally. Each analog input can be connected with a thermocouple, a RTD or voltage and current signals. Galvanic isolation of the analog inputs to each other as well as to the power supply ensures secure measurement data acquisition. Galvanic isolation also prevents earth loops or short circuiting through non-isolated sensors.
Switch and analog outputs enable the automation of test procedures with a universal testing device. The universal testing device can securely store measurement and control data independently and without PC support via its integrated up to 14 GB data memory.
The universal testing device is therefore particularly suited to testing systems for electrical products such as bulbs, lamps, kitchen equipment, in-built kitchen appliances and electrical tools.
The intuitive ProfiSignal software is included with delivery of the universal testing device. It can immediately be used for measurement and testing tasks.
- Directly operable from desktop via integrated network interfaces
- Compact design in a 19“ tabletop housing
- Differential and galvanic isolation of inputs
- Universal analog inputs (mV, mA, thermocouple, RTDs)
- Resistance measurement
- Integrated signal conditioning
- AC-/DC current / voltage/ power measurements
- Switch and analog outputs for automation of test procedures
- Up to 16 GB internal memory
- A range of internal set-point, calculation and logic channels
- Connectivity to external hardware via serial interfaces
- Monitoring and alarm functions
- A range of drivers are available: OCX (API), OPC, LabView, DasyLab
Applications in laboratory and testing
The universal testing device is available in a 19“-tabletop housing format with the dimensions 445 x 177 x 370 mm, and has been developed for requirements in laboratories and test environments. Thermocouples, RTDs, resistors and other sensors can be directly connected and measured. The universal testing device also measures AC/DC values.
The universal testing device is available in a range of versions. The versions differ only in the number of inputs and outputs. All versions are identical in respect of interface options, internal functions, galvanic isolation and data logger memory.
Universal inputs (8 channels)
For the universal inputs there are four 4-mm laboratory connectors for each channel. The inputs are wired as type Cu/Cu thermominiature connectors for the direct connection of thermocouples. The inputs have full galvanic isolation: to each other, to the interfaces and to the power supply. Due to their enhanced galvanic isolation, the inputs are also suitable for non-isolated temperature measurement using thermocouples.
Differential inputs (16 channels)
For the differential inputs there are four 4-mm laboratory connectors for each channel. The inputs are wired as type Cu/Cu thermominiature connectors for the direct connection of thermocouples. The inputs also have full galvanic isolation. Differential inputs are suitable for measuring from thermocouples, mA-signals and DC-volt signals.
Digital inputs/status inputs/frequency inputs (12 channels)
For the digital inputs, each channel is assigned 2 rear clamps. The standard set ups for digital inputs are as passive inputs with high-levels of between 3.5 V ... 90 VDC. 11 channels are usable as impulse counters and frequency inputs for up to 35 kHz. The following options are available: six 24 VDC contact inputs with a wired auxiliary supply of 24 V, for direct acquisition of contacts.
Analog outputs (4 channels)
For the analog outputs, each channel is assigned 2 clamps or plugs. Each channel can be used for 0/4 ... 20 mA signals.
Digital outputs/switch outputs (16 channels)
For the digital / switch outputs, each channel is assigned 2 rear clamps. The standard set up for switch outputs is as passive DC contacts with currents of up to 50 VDC and a permitted continuous current of 2.5 A. The following options are available:
- Eight relay switch outputs, as alternatives to the standard switch outputs, for direct switching to 230 VAC equipment
- Eight 24 VDC outputs, as alternatives to the standard switch outputs, for operating relays and contactors
AC-/DC current / voltage/ power measurements
A 3-phase power measuring unit, with a serial port, is installed to measure AC-/DC current/voltage power values for the continuous measuring of average current, voltage, power and consumed energy.
- Voltage: 500 Volt (conductor to conductor)
- Voltage: 290 Volt (phase to zero conductor)
- Current: 1/5 Ampere
All electrical values are available in virtual channels within the universal testing device. Further processing and storage of electrical measurement data can then be performed as for conventional channels. The electrical data can also be displayed directly to a monitor. The following options are also available: three current transformers for the already mentioned measurement transducers, 20/1 ampere, class 0.2, for measuring current and power up to 20 A.
Resistance measurement of up to 10 kOhm is possible as standard. Connection at the universal inputs using 4-wire technology. The following options are also available: resistance measurement with an ampere for the smallest resistances, e.g. contact resistances.
Versatile and comfortable
As well as the analog and digital inputs/outputs and internal data memory, the universal testing device is also equipped with calculation channels, monitoring and logic functions that can be set up within the device as “virtual channels”. These virtual channels process the online measurement data and make it available for visualization, storage or control purposes.
Process and control functions enable the simple and intuitive configuration of complete programmable procedures. These can then run independently without requiring any PC support. Virtual channels have clear advantages over PLC in that changes (e. g. to threshold values) can be performed during operations and without affecting other functions. This is of particular benefit in laboratory applications.
Limit values for alarm output and event management. User friendly functions for determining normal operating conditions. Integrated wire-break monitoring and watchdog functions.
Independent transmission of fault notifications as email or text message. Requirements: Network operation or GSM modem.
Computational linked channels. Differential measurements, quotients, efficiency rates, output performance etc., and the recording and evaluation of a calculation channel takes place as if for a hardware channel. Averaging channels, statistical functions, calculation of average values and statistical functions.
COM and Modbus channels
Serial interfaces for connecting weighing machines or large displays via RS232/422/485, protocol generator for ASCII protocols, Modbus RTU and Modbus TCP. Protocols for a diverse range of equipment are available.
Simultaneous multiple controllers. Automatic and real-time settings as default parameters.
Generation of set point graphs for internal/external use. Operating external equipment (e. g. controllers). Process control and sequential logic systems. Monitoring processes on a PC.
Integration and differentiation of measurement data (e. g. flow rates to volumes). Also includes the functions: Operating hour counter, edge counter and totaller.
Permanently built-in sensor linearisation and user-defined sensor characteristic curves (up to 7.500 value pairs).
Targeted generation of edges and impulses in digital outputs. Simple to operate tool for controlling external set-ups.