Based on years of research the 1330A is designed using the highest quality of resistance standards (MI 1 Ω and 10 kΩ) and a newly designed and the new LTZ1000 10 Volt source all enclosed in a shielded temperature controlled enclosure.
With the fully automated software, users can now perform a full calibration of the Calibrator or DVM. All you have to do is connect it and press Go!
High-precision digital multi-meters (DMMs) and multifunction calibrators (MFCs), operating in the five low‑frequency electrical quantities, are widely used in calibration laboratories. These instruments can be calibrated by means of “artifact calibration”, requiring only 10 V, 1 Ω and 10 kΩ standards. This is a proven method currently used throughout the industry, where calibration of the units are done with customers having to either outsource the calibration at a high cost and downtime. With the 1330A you simply only need to connect the Calibrator or DVM and in the software select Start!
The 1330A Structure
Fig. 1 shows the block schematic of the 1330A. Inside a copper box the three standards are housed and thermally controlled by a PID system. The output of the desired standard is connected to a low thermal force DC switch made of latching relays inserted in the copper box and maintained at the same temperature of the standards. The temperatures of the standards and of the sensors are controlled by a microprocessor. The system can operate in stand-alone mode or with a PC connection via USB 2.0. With the real clock calendar, it is possible to compensate the time drift of the standards. The display can show either the actual or compensated standard value.
The 1330A temperature can be measured either with a 100 Ω platinum thermometer or with an electronic thermometer connected to the microcontroller. The 1330A temperature stability is ± 0.01 °C, with the 1330A in a laboratory at 23 ± 0.5 °C. A photo of the 1330A calibrating a high precision DMM is shown in the main page.
See data sheet for specifications