Specifications

LOW HUMIDITY TYPE (LOW) TEMPERATURE & HUMIDITY CHAMBER
PDR
·
PDL
5 to 98％rh・ −20 to ＋100℃／−40 to ＋100℃
Model PDR−3J PDR−4J PDL−3J PDL−4J
System Balanced Temperature and Humidity Control system (BTHC system)
Performance*
1
Temp. & humidity range
−20 to +100°C/5 to 98% rh
(lowest attainable temperature in an ambient
temperature of 0 to +30°C)
Refer to diagram of temperature & humidity
controllable range on page 26.
−40 to +100°C/5 to 98% rh
(lowest attainable temperature in an ambient
temperature of 0 to +30°C)
Refer to diagram of temperature & humidity
controllable range on page 26.
Temp. & humidity fluctuation ±0.3°C/±2.5% rh
Temperature gradient 3.0°C
Temperature variation in space 1.5°C
Temperature rate of change
Heat up rate: 3.0°C/min.
Pull down rate: 2.0°C/min.
Heat up rate: 3.0°C/min.
Pull down rate: 1.0°C/min.
Heat up rate: 3.0°C/min.
Pull down rate: 2.0°C/min.
Temperature extremes
achievement time
Heat up time: from +20 to +100°C 30 min.
Pull down time: from +20 to −20°C 40 min.
Heat up time: from +20 to +100°C 30 min.
Pull down time: from +20 to −40°C 50 min.
Allowable heat load*
2
1100 W 1250 W 1500 W 2850 W
Construction
Exterior material Stainless steel plate: 18 Cr stainless steel plate, hairline finish
Test area material Stainless steel plate: 18−8 Cr−Ni stainless steel plate, 2B polish
Heater Nichrome strip wire heater
Humidifier 18-12−2.5 Cr−Ni−Mo stainless steel sheathed heater (surface evaporating system)
Cooler Plate fin cooler (Doubles as dehumidifier)
Plate fin cooler (Doubles as dehumidifier),
stainless steel tube cooler
Air circulator Sirocco fan
Water
supply
Supply system Pump out system
Water tank 16 L 32 L 16 L 32 L
Refrig-
eration
unit
System Mechanical type single-stage compression cooling
Compressor Rotary compressor (R404A)
Rotary compressor
Reciprocating
compressor (R404A)
Scroll compressor
Reciprocating
compressor (R404A)
Refrigerator capacity 0.65 kW 1.2 kW 1.5 kW + 0.4 kW 3.0 kW + 0.4 kW
Expansion mechanism Electronic expansion valve
Electronic expansion valve
Capillary tube
Dehu-
midifier
System Rotary recovery (adsorption) dehumidification
Refrigerator system Mechanical single-stage refrigeration system
Compressor
Rotary compressor (R404A)
Reciprocating compressor (R134a)
Expansion mechanism Temperature regulated automatic expansion valve
Capacity 408 L 800 L 408 L 800 L
Chamber total load resistance 100 kg
Dimensions*
3
Inside dimensions
(W x H x D mm)
600 x 850 x 800 1000 x 1000 x 800 600 x 850 x 800 1000 x 1000 x 800
Outside dimensions
(W x H x D mm)
1885 x 1690 (1820) x
1273
2285 x 1840(1970) x
1273
1885 x 1690 (1820) x
1273
2285 x 1840 (1970)
x 1273
Weight*
4
567 kg 687 kg 622 kg 817 kg
Utility requirements
Allowable ambient conditions
Standard temperature and humidity region running: 0 to +40°C/Up to 75%
Low temperature and humidity region running: +5 to +32°C
Absolute humidity no greater than 23g/kg
Power
supply
200V AC 3ø 50/60 Hz 34.0 A 44.5 A 35.5 A 47.0 A
220V AC 3ø 60 Hz*
5
33.0 A 42.5 A 34.5 A 45.5 A
380V AC 3ø 50 Hz*
5
17.5 A 27.0 A 18.5 A 29.0 A
400V AC 3ø 50 Hz*
5
16.6 A 25.6 A 17.5 A 27.5 A
*1 The performance values are based on IEC60068-3-5:2001 and IEC60068-3-6:2001;
Performance figures are given for a +23°C ambient temperature, relative humidity of 65±20%rh, rated voltage, and no specimen inside the test area.
*2 When temperature in chamber is +20°C
*3 Excluding protrusions. Dimension indicated in ( ) includes protrusion.
*4 Total weight (temperature & humidity chamber and dehumidifier)
*5 Compliance with CE Marking
22