XTEMP ENVIRONMENTS (SHANGHAI) CO., LTD.
http://www.xtemp-usa.com/
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/
55
DSEO0711-2-V211119/UXP8401-PG.CC.GE.AR-CD7003/5~+45
℃
Chapter 3 Controller Descriptions and Operation
3
MODE 0, Hot-gas stepper valve (MV1) PID modulated, fixed heating rate, for
moderate temperature control, improved temperature deviation and electric consumption.
MODE 0 is default and preferred;
MODE 1, PID modulated heating, fixed hot-gas stepper valve (MV1) bypassing, for lower
temperature and humidity control. Temperature deviation may be degraded and electric
consumption will increase.
For MODE 0, setting of additional heating of 0~50 % is allowed. If heating up is difficult, increase
the additional heating percentage. Higher valve may degrade cooling down rate. For best
performance, no heating at temperature below 10
°
C or when temperature beyond 2
°
C of
the setting.
For MODE 1, setting of hot-gas bypassing stepper of 0~30% is allowed. The operation of stepper
MV1 is helpful against frost buildup, but may degrade lower temperature or lower humidity.
Tap the appropriate fields for change of the modes, percentage of the additional heating or
stepper operation.
Fig 37
3.16 Radiation set
At screen of USER, tap [RADIATION SET] to enter screen of RADIATION SET for dimming rate and a
safe radiation level (Fig 38).
Change the light from one level to another sometime cause problem of the tests and operation,
for example comfort of the operator and test animal, behavior of plant growth. Appropriate
setting of a dimming rate from one radiation level to another reduce the adverse effect of
immediate light change and may improve the simulation of light change from day to night
and vice versa. Rate of 1 means dimming rate of 1% in about 1.5~2.0 sec, while 99 means
dimming rate of 1% in 420~450 sec. Try to calculate the exact dimming rate if the value is
important to the tests.
