Stationary Measurement Solutions for Air Conditioning, Drying, Cleanrooms and Compressed Air Committing to the future 2010

2 With its humidity sensor, developed more than fifteen years ago and since then continually improved, our attention was focussed from the start on two accuracy parameters, measurement uncertainty and long-term stability. The basic design was developed by Testo and has since been reverse engineered by several manufacturers: a polymer sensitive to humidity serves as a dielectric between two condenser electrodes. However, its distinctive feature is the way in which the individual layers lie perfectly on top of each other. This is particularly clear in the top electrode which has to carry out two...

3 32 Systematic adjustment Regular readjustment – even of long-term stable sensor systems – is of vital importance for process precision and cost reduction. If neglected, you run the risk of having to redefine a tighter reference humidity interval after only one or two years with the consequences for operating costs as described in "Precision cuts costs". It is crucial for those responsible for systems, such as the Facility Manager or maintenance department to have a complete system, suited to the humidity transmitter, which facilitates easy recalibration and adjustment. At Testo, the system...

4 Overview of contents by application Stationary measurement technology from Testo is used in a broad spectrum of applications. The most important applications and the instruments suited to them are shown on this page. Also consult the catalogue if you do not find your application in the overview. On the flap behind the title page you will find the overview of contents sorted by product. Or just ask your Testo distribution partner. We are happy to help. In addition to stationary measurement technology, Testo also offers portable measurement technology and data loggers. You will find the cross-references...

T T T T 5 Stationary temperature measurement Cleanroom Compressed air, dry air and dry gas Trace humidity measurement: from page 54 Compressed air counter testo 6440: from page 82 Humidity transmitters: from page 8 Differential pressure transmitters: from page 68 Stationary temperature probes: from page 96 Temperature transmitter: from page 96 Exhaust gas Burner Boiler Flow Outside temperature Return Corridor Cleanroom Critical cleanroom 100,000 Pa 100,020 Pa 100,040 Pa Dryer Compressor °Ctpd Äp = 20 Pa P

6 Humidity sensor with an information headstart Long-term stability and selfdiagnosis in the transmitters testo 6651 and testo 6681 guarantee highest system availability. Our objective was to create security for the user. This can avoid immense downtime costs, especially in sensitive applications. The self-diagnosis of the sensors in the new, intelligent humidity measurement transmitters detects anomalies early – before damage can occur. And our tried and tested (patented) humidity sensor has proven its stability not only in thousands of applications worldwide. The accuracy of ±1 %RH was confirmed...

7 Humidity measurement – special probes for extreme conditions testo 6614 – probes for high humidity Humidity measurement in the high humidity range is among the most difficult mesasurement tasks. Unstable measurement values, delayed signal reaction, and sometimes also sensor corrosion are no rarity, if a special solution is not used For these applications, Testo has developed a special, heated humidity sensor with the testo 6614. A microclimate which is 5 Kelvin above the process conditions is thus created inside the filter. The considerably lower humidity in the microclimate greatly improves...

8 Overview of humidity measurement transmitters testo 6621, testo 6651 and testo 6681 Areas of application Air conditioning technology: Application in rooms or air conditiong ducts Process requirements testo 6621 testo 6651 testo 6681 Ethernet Ethernet Climate technology and industry: Critical climate, cleanrooms Industry: critical climate, cleanrooms, drying processes, high humidity, trace humidity, humidity in ReturnH2O2environment etc. Probe version: testo 6631 Monitoring critical climate in bio-research, e. g. in research greenhouses

9 Technical data 0 to 100 %RH (no high humidity processes) Measuring range Humidity 0 to 100 %RH max. cable length 5 m 10 m 4 ... to 20 mA, 2-wire 0/4 to 20 mA, 4-wire 0/4 to 1/5/10 Volt, 4-wire Signal outputs 4 ... to 20 mA, 2-wire (not for testo 6614/6615) 0/4 to 20 mA, 4-wire 0/4 to 1/5/10 Volt, 4-wire Housing ABS, plastic, IP65 Metal, IP65 Interfaces digital Testo (cf. testo 6651), Profibus (optional intermediary layer), Ethernet (optional intermediary layer) 4 relays (optional), Early warning system (via display or relay collective alarm) Special features Special probe versions for • Temperature...

10 The air conditioning humidity transmitter for applications in rooms or air conditioning ducts Fast and accurate adjustment on site with the portable instruments testo 400/testo650 Duct version with display Convenient operation via the testo P2A software (parameterization, adjustment, anaylsis) Wall version with display P2A ... cannot be taken for granted! The fact that this high accuracy is also paired with timeoptimized handling – thanks to an external interface – has already delighted many customers! Adjustable – even in this instrument class ... Matthias Häffner, Market Manager Testo Germany...

11 testo 6621 – With external interface for adjustment and commissioning Order code 0555 6621 Axx A01 A02 A03 Wall version (not with B01, B05) Duct version Wall version with external probes for 4 to 20 mA analog output (with B01 + B05 only) Bxx B01 B02 B03 B04 B05 B06 B07 B08 4 to 20 mA (2-wire , 24 VDC)* 0 to 1 V (4-wire, 24 VAC/DC) 0 to 5 V (4-wire, 24 VAC/DC) 0 to 10 V (4-wire, 24 VAC/DC) 4 to 20 mA (2-wire , 24 VDC) 0 to 1 V (4-wire, 24 VAC/DC) 0 to 5 V (4-wire, 24 VAC/DC) 0 to 10 V (4-wire, 24 VAC/DC) Cxx C00 C01 without display with display Fxx F01 Relative humidity (%RH) Gxx Mxx M01 M02...