OverviewThe TRANS CAL 7281 is a high-precision, portable calibration and testing instrument for mechanical and electrical quantities. It is designed for on-site calibrations and reference measurements and can optionally be supplied with a DAkkS or factory calibration certificate as a reference instrument.
Short descriptionThe instrument can be operated portably using a battery (standard or rechargeable) or for extended stationary use via an external power supply. In conjunction with suitable sensors, it forms a flexible reference measurement chain for force, torque, pressure, or displacement.
Supported sensor types: Strain gauges, potentiometric sensors, and transmitters with a standardized voltage output (±5 V / ±10 V).
A graphic LCD displays the measured value, a bar graph shows the mechanical or electrical input level, and, if required, also indicates or differentiates a preset threshold value.
Integrated functions: Data logger, calibrated value, lower/upper limit comparator with evaluation outputThe instrument can be operated portably using a battery (standard or rechargeable) or for extended stationary use via an external power supply. In conjunction with suitable sensors, it forms a flexible reference measurement chain for force, torque, pressure, or displacement.
Supported sensor types: Strain gauges, potentiometric sensors, and transmitters with a standardized voltage output (±5 V / ±10 V).
A graphic LCD displays the measured value, a bar graph shows the mechanical or electrical input level, and, if required, also indicates or differentiates a preset threshold value.
Integrated functions: Data logger, calibrated value, lower/upper limit comparator with evaluation output
Extended functionsOptionally, the device also offers sensor testing, a strain gauge/Wheatstone simulator, and a precision voltage source for verifying complete measurement chains, troubleshooting, and calibrating measuring amplifiers. Automated application is also possible thanks to the extended interface functions.
DAkkS/factory calibration certificates are also available as an option. TRANS CAL PC software enables configuration, data acquisition, display, and logging.
Product data- Measurement accuracy: < ±0.001 % F.S.
- Sample rate: 0.1 ... 1200/s (DC); 0.1 ... 2/s (AC)
- Type of sensor: DMS; potentiometric; transmitter; sensors/devices with voltage output
- Interfaces: USB 2.0
- Sensor excitation: DMS: DC 2.5 V / 5 V (at 120 Ω only 2.5 V); AC 2.5 V rms / 5 V rms (from 350 Ω); Potentiometer: 5 VDC; Transmitter: 12 VDC ±5 %
- Protection class: IP40
- Supply voltage: 10 ... 28 VDC external
- Reference measurement device: Yes (optional DAkkS/factory certificate)
- Sensor test / Device test / Strain-gage simulator: Optional
- Data logger: Yes (portable logger up to 30,000 measured values)
- Electronic sensor data sheet (TEDS): Yes
- Connection type: 4-/6-wire technology
- Measurement programs: 16 configurable programs
- Specific characteristics: Precision reference measurement chain; Very low nonlinearity < 0.001% F.S.; burster TEDS support; high-precision 0–10 V DC voltage source; Wheatstone full-bridge simulator
Applications / Use casesTypical applications: On-site calibration of hydraulic presses, reference measurements in assembly lines, testing of robot contact forces, calibration of testing machines and high-precision measuring instruments.Typical applications: On-site calibration of hydraulic presses, reference measurements in assembly lines, testing of robot contact forces, calibration of testing machines and high-precision measuring instruments.
Metrological functions included- Reference measurement chain
- Wheatstone/strain-gage simulator (up to ±50 mV/V)
- High-precision voltage source 0–10 V DC
- Data logging and time-triggered captures
- Simplified sensor configuration via burster TEDS
- Comparator and limit-evaluation
- Sensor/device test and electronic sensor datasheet