testo 6651 Ethernet
- 1.5 Status, warning and error messages
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1.5.3 Transmitter error messages
Error messages show a current malfunction.
Message
Display
Cause
Remedying of fault
03401 No probe signal
The probe communication
is interrupted
Ensure that the probe
connector is fully
engaged in the
transmitter.
-
If communication still
cannot be established,
contact Testo Service
03508 Wrong probe
The connected probe is not
compatible with the present
transmitter
Use a compatible probe
Note: The 660x probes
match the 665x
transmitter, and the 661x
probes the 668x
transmitter
01528 Watchdog error
Due to a processor error,
the transmitter performs an
automatic restart
If the problem occurs
frequently, contact Testo
Service
0300A % RH sensor
short-circuit
Short-circuit in humidity
sensor
Contact Testo Service
0300B %RH
sensor
broken
The humidity sensor is
damaged (sensor broken)
Contact Testo Service
0300C T sensor short-
circuit
Short-circuit in temperature
sensor
Contact Testo Service
0300D T sensor broken The temperature sensor is
damaged (sensor broken)
Contact Testo Service
1.888.610.7664
www.
Testo-Direct
.com