Obsolete D-1-7 Série Mode D'emploi page 24

6. Commissioning, operation
Factor / unit (byte 3)
7 6 5 4 3
GB
24
2 1 0
Internal device error 1 (sensor unit non-synchronous)
The error message will be sent as soon as the synchronisation between the
instrument's two internal microprocessors is disturbed. Error correction through
reset.
Sensor bridge voltage outside permissible range
The sensor bridge voltage is only verified when turning on or after a reset. Error
correction through reset.
Pressure value more than 5 % over the end of the measuring range
The pressure is checked every 10 ms. The error message is sent for as long as
the pressure is outside the 5 % limit.
Pressure value more than 5 % under the start of the measuring range
The pressure is checked every 10 ms. The error message is sent for as long as
the pressure is outside the 5 % limit.
Temperature at the pressure sensor greater than 80 °C
The temperature is checked every 2.5 seconds. For as long as the temperature is
greater than 80 °C, the error message will be transmitted.
Res.
Internal device error 2 (internal communication error)
The error message will be sent as soon as there is a disruption of the internal data
exchange (sensor unit ⇔ evaluation electronics) detected. Error correction through
reset.
LED
The LED inside the instrument signals the following operating conditions:
LED off: No voltage supply or bus communication present
■
LED on: No bus communication
■
WIKA operating instructions pressure transmitter model D-1x-7