www.sentera.eu
MIW-HPS-X-2-EN-000 - 14 / 03 / 2017
9 - 15
Communication holding registers reset procedure:
1.
Put the jumper onto pins 1 and 2 of the P4 connector for more than 20 s while the
device is powered. (See
Fig. 8
Modbus holding register reset jumper
).
Fig. 8 Modbus holding register reset jumper
1
2
3
4
5
2.
Modbus communication holding registers from 1 to 3 will be reset to the default
values.
3.
Remove the jumper.
ATTENTION
Make sure that the nozzles are free and not connected.
LED indications (See Fig. 9):
1.
When the green LED1 is on, the power supply is adequate and Modbus RTU
communication is active.
2.
When the green LED2 is on, the measured value (pressure, volume or air velocity)
is between the minimum and maximum alert range.
3.
When the yellow LED3 is on, the measured value (pressure, volume or air velocity)
is below the minimum alert range or above the maximum alert range.
4.
When the red LED4 is on, the measured value (pressure, volume or air velocity) is
below the minimum measurement range or above the maximum.
Fig. 9 LED indications
5.
Sensor element failure indication:
In case of failure of sensor element or loss of communication with it, the red
LED4 blinks. See
Fig. 10.
Fig. 10 Sensor element error
HPS
HPS
DIFFERENTIAL PRESSURE
TRANSMITTER
HPS-X -2
