This manual describes the operation, maintenance and care of testo 6681 humidity transmitters. It also provides instructions for using testo 6610 probes, P2A software and parameterizing, adjusting and analyzing software.
This document serves as the second volume of the instruction manual for the Testo 6681 humidity transmitter. It details the use of the P2A software for parameterizing, adjusting, and analyzing the transmitter and its compatible probes. The guide includes specifications for various testo 6610 series probes, such as wall, duct, and cable versions, along with their technical data and application ranges.
| Measuring range (Humidity) | 0 to 100 % RH |
|---|---|
| Measuring range (Temperature) | -20 to +70 °C |
| Accuracy (Humidity 0-90% RH) | ± (1,0 % RH + 0.007 x reading) |
| Probe shaft material | Stainless steel |
| Connector material | ABS plastic |
| Sensor response time | t 90 max. 15 sec. |
No, the testo 6681 transmitter cannot be run with the testo 6600 probes; testo 6610 probes must be used.
Probes can report faults such as sensor breaks, sensor short-circuit, condensation, drift at adjustment points, and early warning of sensor corrosion.
The minimum bend radius for the probe cable is Ø 50 mm.