background image

Chamber 
size 

300x300x275  415x370x345  450x450x450  560x640x600 

Product size  580x450x450  720x525x535  615x590x635  1050x760x910 

Shelf 

Max no. 

Standard no. 

Adjustable 

YES 

YES 

YES(shelf 

heating NO) 

YES(shelf 

heating NO) 

6. Instrument operation

(1). Installation 

  Put the vacuum oven at the place in the room with good air conditions and without succession. 

There should no inflammable, explosive and corrosive air in the surroundings of instrument.   

(2). Debugging 

Close the vacuum oven door and screw the handle. Close the return-air valve and open vacuum 

valve, connect the airway at side of box body with vacuum pump by vacuum rubber pipe, switch on 
the power of vacuum pump, begin to exhaust air. When the indicating value of vacuum meter 
reaches to required value, close the vacuum valve and switch of vacuum pump. At this time, it has 
vacuum condition in the box. It there is no heating function, the debugging of vacuum oven is end.. 

(3). Usage 
1. Put the articles need to be dried in the oven, close the oven door and screw the handle, close the
return-air valve and open the vacuum valve, connect the airway at side of oven body with vacuum 
pump through vacuum rubber, switch on the power of vacuum pump, it begins to exhaust air. When 
the indicating value of vacuum meter reaches to the required vacuum degree, close the vacuum 
valve, and then close the vacuum pump, at this time, it is in vacuum condition in the oven. 
2. Switch on the power, turn it on, the indicating light is on, which means it works in normal. The
meter will display the temperature of workroom, then regulate the control meter to the setting 
temperature, open the heating switch, the workroom begins to heat, the green light on the control 
meter is on, which means it is power on and temperature is rising. After 60 minutes, constant 
temperature of instrument,  the display temperature should be in conformity with the setting 
temperature. 

3.

 

If you required lower temperature, for example 60

,you could adopt second setting style, set

50

 at the first time, when the overshoot temperature fall after rise, set 60

 at the second 

Summary of Contents for DVO Series

Page 1: ...tion manual may make changes and improvement in the future there will be not the notice please understanding If found abnormal phenomenon in the process of use please do not hesitate to contact our co...

Page 2: ...ts 1 Safety instruction 2 Application 3 Structure 4 Working condition 5 Technical parameters 6 Instrument operation 7 Display instructions 8 Wiring 9 Points for attention 10 Maintenance 11 Problem sol...

Page 3: ...ull the plug 3 When the instrument is not used for long time must pull the plug 2 Application It is suitable for drying and heating articles in vacuum conditions in the laboratories of industrial and...

Page 4: ...e has square workroom 1 Vacuum gauge 2 LED light switch 3 PID temperature controller 4 Power switch 5 Vacuum valve 6 Inert gas inlet valve 7 Observation window 8 Door handle 9 Leakage protection switc...

Page 5: ...parameters Model DVO 25 DVO 53 DVO 91 DVO 215 Power Voltage 220V 380V Power 500W 1400W 1500W 2100W Material Case Steel with epoxy powder coating Chamber Stainless Steel Temperature Heating method 4 s...

Page 6: ...ge 1 Put the articles need to be dried in the oven close the oven door and screw the handle close the return air valve and open the vacuum valve connect the airway at side of oven body with vacuum pum...

Page 7: ...erature could not lower than 50 If it is lower than 50 the value measured by standard thermometer is different with the display value of meter that is normal It could not affect the temperature contro...

Page 8: ...ructions 1 Function key SET 2 Shift key Press and hold for 5 seconds to self tuning 3 Minus key Sound attenuation 4 Plus key see heat preservation time 5 heating symbol 6 alarm symbol 7 set self adjus...

Page 9: ...up time shows in minutes In case of power failure the previous timer is invalid When the caller calls start the timer from zero again 4 3 Time setting up function According to the first menu in Table...

Page 10: ...nal belt 0 999 Heating rate 500 3 Integral 0 999 Integral time 150 4 Differential 0 999 Differential time 250 5 Period 0 120 Output time by second and the period is the differential 1 13 20 6 Sensor c...

Page 11: ...8 Wiring 72 72 DFD SCR output Relay output Voltage output Zero crossing trigger...

Page 12: ...Relay output Voltage output 48 48 DFG...

Page 13: ...96 96 DFA...

Page 14: ...it in the sir when the temperature cooling the lower then ignition point for acoiding the combustion from reaction 4 There is no emplosion protection equipment in the cacuum dry box Don t put the infl...

Page 15: ...r is not switch on Switch on the power The temperature in the box isn t rising The setting temperature is low Adjust the setting temperature The electric heater is wrong Change heater The temperature...

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