B&C Technologies DI-325 Industrial - Manual (Page 55)

OPERATING AND PROGRAMMING INSTRUCTIONS
8-24
(02) Min. drying time
If the program is set to automatic drying (see parameter 1), this parameter will be available.
This parameter is the minimum drying time in minutes. This time is started when the drying cycle is
started. During this time the controller will not check if the current batch is dry.
(03) Max. Drying time
If the program is set to automatic drying (see parameter 1), this parameter will be available.
This parameter is the maximum drying time in minutes. If a batch has been in the drying cycle for
this time, and it has still not been detected as dry, it will stop the drying cycle anyway.
(06) Drying time
The time the drying step is activated (see also parameter 1). This parameter can only be set
if no ‘automatic drying’ is available or when parameter 1 is set to ‘time’.
(07) Drying temperature
The target temperature for drying during the drying step. If the drying time is set to 0
(parameter 6), this parameter will not be visible.
(08) Offset sensor 2
This parameter is available in case 2 temperature sensors are installed and the drying method
(see parameter 1) is set to ‘auto’. This parameter is the temperature difference the 2
nd
temperature
sensor (in the inlet of the drum) has to measure compared to the standard temperature sensor to
detect if the batch is dry.
This means that, after the adjusted minimum drying time (see parameter 2), if the
temperature difference between sensor 1 and sensor 2 is less than the value adjusted with this
parameter, the batch is considered to be dry.
So, for example, if the temperature measured on the drum temperature (sensor 1) is 63°C
and this parameter is set to 5°C, the batch is considered to be dry when the temperature measured
on the inlet (sensor 2) is less than 68°C.
(09) Offset infra-red
This parameter is available in case an infra-red sensor is installed and the drying method
(see parameter 1) is set to ‘auto’. This parameter is the temperature difference between the infra-red
sensor and the temperature sensor to detect the batch as dry.
So, for example, if the temperature measured on the drum sensor (the standard temperature
sensor) is 63°C and this parameter is set to 5°C, the batch is considered to be dry when the
temperature measured by the infra-red sensor is higher than 58°C.
(10) Humidity dry val.
This parameter is available only when a humidity sensor is installed and the drying method
(see parameter 1) is set to ‘auto’. This parameter is the humidity percentage which has to be
detected in order to define the batch as dry.
If the humidity sensor detects a humidity percentage less than the value adjusted in this
parameter, the batch is considered to be dry.
(13) Max. inlet temp.
This parameter is available when a 2nd temperature sensor on the inlet is installed. With this
parameter, the maximum temperature of the air coming into the inlet can be limited to protect the