The measurement data monitoring system testo Saveris measures Temperature and Humidity values as well as additional measurement parameters via analog signals (4 to 20 mA) in ambient conditions and in processes. The easy-to-use monitoring system delivers safety and time savings thanks to automated measurement data recording.

Unique Features of Testo Saveris

• First-of-its-kind of system with a unique combination of Ethernet and wireless connectivity
• Bi-directional communication
• 100 m free field data transfer
• Wireless data transfer & storage
• Backup of the data even up to a year
• Audio visual alarm and GSM alarm option available
• Power backup
• Not necessary to be connected to computer all the time, and
• Can be upgraded to a web based system

Measures, Documents, Maps and Issues Alarms

The new testo Saveris measurement system measures Temperature and Humidity values in the environment and in processes. The company also has analogue couplers that accept signal input so virtually one can take any input, may it be Pressure, Lux, CO2 level, etc., and add it to the system.

The easy-to-use measurement system delivers safety and time savings thanks to automated measurement data recording.

testo Saveris is Ideal For:

• Monitoring and documentation of Temperature and Humidity data in production, quality assurance and R&D as well as in buildings
• Monitoring of the storage climate of Temperature and Humidity-sensitive products, such as valuable inventory (warehousing, cold storage), of medicines and of foodstuffs, and
• Monitoring of the foodstuff cooling chain.

System Overview

The testo Saveris radio probes measure temperature and humidity. In the measuring cycle, the probes save their measurement data and send it to the central base at regular intervals. If a limit value is exceeded, a radio link is established immediately. Through bidirectional transmission, the radio probe and the base are in mutual contact. This therefore ensures that the measurement data is only recorded by the base and is not interfered with by other radio systems.

An alarm sounds in the event that the radio link is interrupted by obstacles. The memory in the probe ensures that the measurement data is not lost in the event of interference in the radio link. An optimised battery design ensures for long running life of the probe memory.

In free field 100 m at a frequency of 2.4 GHz. In buildings, the transmission path is strongly influenced by structural conditions such as walls, refrigerator doors or metal doors. The radio link can be improved or lengthened with poor structural conditions by using a router. The radio probes are available with or without a display as an option. On going measurement data, the battery status and the quality of the radio link are shown on the display.

testo Saveris Ethernet Probe

In addition to the radio probes, probes can be used that are directly connected to the Ethernet. The existing LAN infrastructure can be used through this. This allows the data transfer from the probe to the base, even over long distances. Ethernet probes can be used over any long periods since they are connected to the mains and therefore work independently of batteries. The internal memory guarantees that the existing measurement data is not lost, even with failure of the mains or the LAN connection. A display informs about the ongoing status of measured data as well as the probe status.

testo Saveris Base

The base is the heart of testo Saveris and can save 40,000 readings per measurement channel independent of the PC. This corresponds to around one year of memory capacity at a measuring rate of 15 minutes. An emergency battery ensures that an alarm is transmitted and that no existing data is lost in the event of a power failure. The system data and alarms are visible via the display of the Saveris base. Even without the PC running, the base issues an alarm by means of an LED if the limit value is exceeded, or optionally via SMS and via a relay output to which an alarm transmitter can be connected. In total, a base can incorporate 150 radio and Ethernet probes or 254 measurement channels. The Saveris base is connected to the PC either via USB or Ethernet cable. The Saveris base thereby offers flexibility with the highest data security.

testo Saveris Software

The measurement data is transmitted from the base to a PC on which the testo Saveris software is installed within just a few minutes using an installation wizard. The initial system and probe configuration is also performed using the software.

All measurement data is saved centrally in the software's database and can be called up any time as a table or a graphic. All alarms that occur are listed in a table as a history.

The automatic creation of PDF reports in defined intervals also simplifies the documentation. Using the calendar function and the consolidation of probes into groups, the operation of the software is simple and intuitive. In the event of an alarm the user can choose between receiving a message via e-mail or a pop-up directly on the screen.

With all this and more the users can have an overview of the system performance with the trends over the time and take preventive or corrective options.

(Testo India Pvt Ltd, Pune. Tel: 020-65600203. Fax: 91-20-25850080. Email: agarud@testoindia.com)