Usable Probes; Display And Keypad; Service Interface; Relay Board (Option) - TESTO 6681 Instruction Manual

testo 6681
10

1.2.2 Usable probes

The testo 6681 humidity transmitter can be used with the following probes:
probe
testo 6611
testo 6612
testo 6613
testo 6614
testo 6615
testo 6617

1.2.3 Display and keypad

The display option allows the testo 6681 humidity transmitter to be operated
via the display and four keys.
The LCD display consists of two 7-segment lines for displaying readings and
units and of an information line (for status messages, for example).
The brightness and contrast of the display and the background lighting
(permanent or off) can be changed via the user menu or the P2A software.

1.2.4 Service interface

Behind the service flap is the parameterizing socket (mini-DIN) as an
interface to the P2A software.

1.2.5 Relay board (option)

This has a floating switch capacity of 250 V AC/3 A. The switching limits and
hysteresis as well as the function as relay for the collective alarm can be set
via the display or the P2A software. Further features include:
Function of changeover contacts (NC/NO contacts) freely selectable
•
- 1.2 Product description
Article no.
0555 6610-L11
0555 6610-L12
0555 6610-L13
0555 6610-L14
0555 6610-L15
0555 6610-L17
Characteristic
Wall probe version; accuracy to ± 1 % RH;
temperature range -20 °C to +70 °C/-4 to +158 °F
Duct probe version; accuracy to ± 1 % RH;
temperature range -30 °C to +150°C/-22 to +302 °F
Cable probe version; accuracy to ± 1 % RH;
temperature range -70 bis +180 °C/-94...+356 °F
Heated cable probe version; accuracy to
± 1.0 % RH; temperature range -40 °C to +180 °C/
-40 to +356 °F
Trace humidity cable probe version;
dew point to -60 °Ctd;
temperature range -40 °C to +120°C/-40 to +248 °F
Cable with cover electrode monitoring probe
version; temperature range -40 °C to +180 °C/-40
to +356 °F