WIKA operating instructions, models CTH6300 and CTH6500
EN
35
2079988.08 02/2018 EN/DE/IT
This setting is deactivated by switching off (default setting is
EAoF
).
6.8 Special functions
6.8.1 Ohm/Microvolt/Volt/Hertz display
To display the indicated values in the corresponding basic unit, during switching on
simultaneously press the
FAST/
▼ key and the
ON/OFF
key and keep them pressed for
approx. 3 seconds until the following basic unit is displayed:
o
= Ohm (Pt100)
H
= Hertz (flow m/s)
u
= Microvolt (thermocouples)
U
= Volt (humidity)
6.8.2 Zero adjustment (zero)
Keep the
Clear
key pressed (for approx. 3 seconds) to set the displayed value to
0
.
Before pressing the key make sure that the actual value is also
0
(no flows/pressure
present at the probe).
6.8.3 Deactivation of channel 2 (toggle)
Keep the
Hold
key pressed (for approx. 3 seconds) to deactivate or activate the 2nd
measuring channel.
7. USB interface protocol
With the CTH6x00 instrument series, a USB-/RS-232 driver from the manufacturer FTDI
is used.
Parameters
Baud rate
2,400 baud
Data bits
8
Stop bits
2
Parity
None
6. Commissioning, operation / 7. USB interface protocol
