Model: | CD-D |
---|---|
Brand: | ZHONGZHI |
Origin: | Made In China |
Category: | Electronics & Electricity / Other Electrical & Electronic |
Label: | High low alternating , programmable tester , temperature tester |
Price: |
¥1
/ pc
|
Min. Order: | 1 pc |
Last Online:14 May, 2015 |
Model |
CZ-D-225G |
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Test specimen limitation |
1)inflammable/explosive material, easy to volatile material test sample are forbidden; 2)storage corrosive substances test sample is forbidden; 3)storage biological test is forbidden; 4)storage strong electromagnetic emission source for test sample or storage are forbidden |
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Capacity / Weight / Dimension |
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Internal capacity |
225L |
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Internal dimension |
500×750×600 (mm) W×H×D |
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External dimension |
About 1100×1617×1150 W×H×D(mm) ( see as below picture) |
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Weight |
300 kg |
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Working noise |
≤70db (The value got at the point with 1 meter away from the front site of the machine and 1.2 height from the ground.) |
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Maximum watt |
About 5.3KW |
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Maximum current |
About 19A |
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Power supply requirement and source
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1) AC 220V single phase with R, N + protective grounding; voltage fluctuation range 10% 2) Frequency fluctuation range:50±0.5HZ; 3) Power supply method: TN-S or TT method 4) Grounding resistance of protection ground wire<4Ω 5) User should equip with relevant capacity air switch or dynamic switch on the installation site, and the switch must control this machine only. when the electrified test sample is put in the test chamber, the power of the test sample should be connected with extra power, don’t use the power of this machine; |
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Performance Index |
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Temperature range |
Temperature range: -70℃~150℃ |
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Control accuracy |
Temperature resolution: 0.01℃ Temperature deviation: ±1℃ Temperature fluctuation: ±0.5℃ |
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Heating / cooling rate |
RT→+150℃≤45 min RT→-70℃ ≤80 min |
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Note: heat capacity of steel ≤35kg/m3 ; when humidity time, no heat resource; |
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Note: performance index above is under the condition of environment temperature is +25℃, and R.H. is ≤85%, no test sample in the chamber; |
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Executive standards and requirement |
1. GB2423.1-2008/IEC6008-2-1-2007 Electronic Electrician Product Environmental Test Part 2: test method Test A: low temperature 2. GB/T 2423.2-2008 Electronic Electrician Product Environmental Test Part 2: test method Test B: high temperature 3. GJB150.3A-2009 high temperature test method 4. GJB150.4A-2009 low temperature test method 5. GB2423.22-2008 Electronic Electrician Product Environmental Test Test 2: test method Test Nb: rule the change rate of temperature change 6. GBT 2424.5-2006 Electronic Electrician Product Environmental Test performance index confirmation of temp. test chamber 7.GB/T 10589-2008 low temperature test chamber technical condition |
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Structure Feature |
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Chamber structure |
internal material: 304# stainless steel with thickness is 1.2mm external material: 304# stainless steel with the thickness is 1.0mm or ( cold roll steel plate with thickness is 1.2mm baking finish, can be selected) heat preservation material: polyurethane foam rubber with 100 mm thick control cabinet and test chamber is entirety with left and right structure install the positioning foot cup and movable trundle under the test chamber bottom |
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Air adjustment channel |
inside air space, recirculating wind channel and stainless steel cycle fan, through the top window and air diffuser, the wind will out uniformly from the top, let the reconciled temperature from the harmonic room diffuses to the test area, which could reach the purpose of control temperature uniformly. |
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Chamber door |
1)single open door 2)anti-explosion 3)anti-condensation electric heating device 4)vacuum auto-defog transparent window 5)window floodlight |
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Test hole |
install a ∮50mm test hole on the left of the machine, and equip related seal device for connecting with power test |
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Observation window |
designed in the door with 230*260mm transparent electric radiant heating film with cavity toughened glass(equipped with anti-condensation function) |
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Control plane |
TEMP880 Touch Screen LCD, import from Korea, floodlight switch,main power switch |
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Machine room |
refrigeration system, heating device, fan, dewatering device, adjustable back window |
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Test specimen supporters |
adopt 304# stainless bent into net sharp, easy for use, the distance between the material frame could be adjusted(the smallest distance is 50mm),standard equipped two pieces |
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Distribution control cabinet |
main power breaker, controller, distribution plate, radiating fan, over temperature protector |
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Heating system |
adopt the scale heat rejection heating pipe P.I.D. control the heating so let the temperature gets the balance |
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Refrigerating System |
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Refrigeration method |
to keep the cooling rate and minimum temperature requirement, this test room adopts a set of binary compound refrigeration system, complex overlapping system includes with a high temperature stage refrigeration cycle and a low temperature stage refrigeration, to achieve the heating exchange from evaporative condenser |
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Refrigeration compressor |
adopt low temperature compressor from European |
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Cooling system |
air-cooled scale condenser, circulating fan for heat dissipation |
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Evaporimeter |
finned tube heat exchanger |
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Evaporative condenser |
use high temperature copper weld plate heat exchanger with small surface low loss in energy and high heat exchange efficiency |
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Throttling device |
thermostatic expansion valve ,capillary tube |
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Oil separator |
separate the fixed refrigerant oil of the high temperature high pressure refrigerating fluid which exhaust from the compressor, and then back to bend cavity of compressor for lubrication and cooling. |
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Dry filter |
absorption for the residual water and acidic material from refrigerating fluid in refrigerating system, filtrate the solid impurity grain, copper cuttings of system, keep the normal working of expansion valve and capillary, in case of ice blockage and filth blockage |
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Refrigerating fluid |
adopt environment protected refrigerating fluid R404A, RS23 |
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Electrical Control System |
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Controller |
import controller, control temperature Korea SAMWON, LCD touch screen controller TEMP880
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Display interface |
1)display screen dimension:5.7 inches colorful touch screen conversational mode 2)temperature set value(SV), present value (PV)displays directly 3)can display the temperature output value 4)the execute program number, section, procedure time and time signal control condition can be displayed 5)can display auto-calculus picture and procedure standby light-flooding picture 6)can display record data and curve condition picture 7)can display current curve and edit procedure curve and history running curves 8)can display fault indicated and simple fault exhaust |
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Procedure capacity and control function |
1) operational procedure capacity:max:120 groups; one procedure could consist of 1 to 99 sections. 2) operational memory capacity: 1200 sections, could repeat executive command: each command could repeat 999 times, the slope setting of the procedure could be set through the timer shaft, the jointing use could be set among the procedures, the procedure making can adopt dialogue type, easy to operate with edit, eliminate and insert function, 4 groups of time signal output control (can control the test sample ON/OFF option). 3) 9 groups of PID parameter setting, the procedure will have the overleap section, keep functions; can show the curve and data collection; date and time adjustment function; button and picture lock(LOCK) function; can connect the computer, 8 points of DI abnormal input and 10 points of DO signal control |
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Communication |
RS-232 communicate interface, can used as monitoring and remote control system, record the test data |
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Running method |
program mode / definite value mode |
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Set method |
Chinese/English interface, touch screen input |
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Setting range |
up/down limitation of maximum temperature range is 5℃ |
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Display resolution |
temperature: 0.01℃; time: 1min; |
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Power off memory function |
can set power off recovery mode : heating/ cold/ stop; max power off memory time is 3 years |
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Make an appointment function |
can set available machine time randomly, after turn on the power, the machine will run automatically |
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Input |
PT100 type platinum resistor |
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Curve record function |
equip with battery protection RAM, can save the set value, sampling value and sampling time of the machine; Max record time is 60 days( when the sampling cycle is 1.5min). |
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Software use environment |
IBM PC compatible machine, above PⅡ CPU, more than 128M RAM, simplified Chinese Windows2000 or simplified Chinese WindowsXP operation system. |
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Circulating fan |
low noise with many wing centrifugal fan |
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Heater |
import nichrome electronic heater heater control mode: contactless equal cycle recurrent pulse adjust wide, SSR( solid-state relay) |
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Control mode |
anti-integral saturation PID, BTC balance adjust temperature control mode( temperature test equipment) |
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Safety Protection Device |
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Refrigerating system |
compressor overheat/over current/ over pressure, condensation fan overheat |
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Test chamber |
over temperature limitation, fan/motor over temperature relay |
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Power |
earth leakage protection, overload protection, short-circuit protection |
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Storage environmental requirement |
environmental temperature of the machine keep within 0℃~+40℃ |
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Installation site requirement |
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