XTEMP ENVIRONMENTS (SHANGHAI) CO., LTD.
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Chapter 3 Controller Descriptions and Operation
3
Further explanation to the result of the program operation as follows:
Starting condition before program initiated, temperature 20.00 °C, humidity 75.0 %RH;
Result of segments 01-02: Ramp the temperature from 20.00 °C to 25.00 °C, and humidity from
70.0 %RH to 75.0 %RH at maximum rate and keep the target temperature and humidity stable
for total of 4 hours;
Result of segments 03-04: Ramp the temperature from 25.00 °C to 28.00 °C, and humidity from
75.0 %RH to 85.0 %RH at maximum rate and keep the target temperature and humidity stable
for total of 4 hours;
Result of segments 05-06: Pull the temperature from 28.00 °C to 10.00 °C at maximum rate and
keep the target temperature stable for total of 8 hours without humidity control;
Result of segments 07-08: Ramp the temperature from 10.00 °C to 25.00 °C, and humidity from a
random value to 75.0 %RH at maximum rate and keep the target temperature and humidity
stable for total of 8 hours;
Returned to second cycle for successive segments 01-02 for constant control of temperature at
25.00 °C and humidity at 75.0 %RH.
Example 2, triangular program (linear speed ramping )for temperature, humidity and light.
SEGMNT
TIME
(min)
WAIT
(min)
TEMP
(°C)
HUMD
(%RH)
LIGHT
(%)
Descriptions
20.00
70.0
000
Starting condition before program initiated, whether
stabilized or not.
01 00050 0 25.00 75.0 000
Change the setting in 50 min for temperature from
20.00 °C to 25.00 °C, and humidity from 70.0 %RH to
75.0 %RH, with linear rate 0.1 °C/min and 0.1 %RH/min.
02 00190 0 25.00 75.0 000
Keep the temperature at 25.00 °C and humidity at
75.0 %RH for 190 min.
03 00030 0 28.00 85.0 000
Change the setting in 30 min for temperature from
25.00 °C to 28.00 °C, and humidity from 75.0 %RH to
85.0 %RH, with linear rate 0.1 °C/min and 0.1 %RH/min.
humidity control off.
06 00479 0 10.00
0.0 000
Keep the temperature at 10.00 °C for 479 min. As a result, the
ramping for temperature is at maximum possible rate and the
total time for ramping and stable stage is 8 hours (1+479=480
min).
07 00001 0 25.00
75.0 000
Change the setting in 1 min for temperature from 10.00 °C to
25.00 °C, and humidity from a random value to 75.0 %RH.
08 00479 0 25.00
75.0 000
Keep the temperature at 25.00 °C and humidity at 75.0 %RH
for 479 min. As a result, the ramping for temperature and
humidity is at maximum possible rate and the total time for
ramping and stable stage is 8 hours (1+479=480 min).
