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HOMEProductsDrying OvenDS401/411/601/611
Laboratory Constant Temperature Drying Oven


  • Available Various Functions.
  • Incorporates with maximum 99 steps, 99 patterns program controller with repeat function.
  • Loaded with Total Operation Hours Timer.
  • Data acquisition from internal test device is easy because of cable holes.

Natural convection type, high safety oven.
Due to high precision control system, high performance temperature control is realized, and the CO2 discharge, power discharge also displayed at the monitor.

401 411 601 611
Operating Temperature Range
Room temp. +5deg.C to 260deg.C
Temp. Distribution Accuracy
±5deg.C (at 260deg.C)
Internal Capacity (L)
99 162

PDF Catalog

Model DS401 DS411 DS601 DS611
Circulation Type Natural Convection
Operating Temp. Room Temp. +5 to 260deg.C
Temp. Adjustment Accuracy ±1deg.C (at 260deg.C)
Temp. fluctuation ±1.5deg.C (at 260deg.C)
Temp. Distribution Accuracy ±5deg.C (at 260deg.C)
Temp. gradient 20deg.C (at 260deg.C)
Max. Temp. Reaching Time Approx. 70 min Approx. 90 min
Interior Material Stainless Steel
Exterior Material Cold Rolled Steel Plate with Melamine Resin Baked Finish
Heat Insulating Material Glass Wool
Heater SUS Pipe heater 1.2kW SUS Pipe heater 1.36kW
Sensor K-Thermocouple (for temp. adjustment and overheat prevention)
Cable Hole I.D. 33mm (Right Side)
Exhaust Port I.D. 33mm x 2 (Top Side)
Observation Window 250 x 280mm Tempered Glass x 2 pcs
Temp. Control System PID Control by Micro Computer
Temp. Setting Digital Setting by UP/DOWN Key
Temp. Display Digital Display by Green LED
Other Display Temp. Pattern Display for Operating Display by LED
Timer 1min. to 9hrs.59min. or 100hrs. to 999hrs.
Timer Resolution 1min. or 1hrs.
Operating Function Fixed Temp. Operation, Automatic Start, Automatic Stop, Program Operation , Quick automatic stop
Additional Function Timer Function (Actual Timer within 24hrs.), Total Operation Hours Timer (to 65535hrs.), calendar time ( 24 hours), calibration offset, Power discharge, CO2 discharge, power failure return mode, user configuration information
Heater Circuit Control Triac Zero-cross Type
Safety Device
Safety Countermeasure Self Diagnosis Function (Abnormal Temp. Sensor, Heater Wire Broken, Triac Short Circuit, Automatic Overheat Prevention), Independent Overheating Prevention, Key Lock, Electric Leakage Breaker
Internal Dimension W450 x D490 x H450mm W600 x D540 x H500mm
External Dimension W560 x D600 x H820mm W710 x D650 x H870mm
Internal Capacity 99L 162L
Shelf Max. Load Approx. 15kg/shelf
Shelf Support QT/Pitch 11pcs./30mm 13pcs./30mm
Power (50/60Hz) AC100V12.5A(15A) Single Phase AC100V14.1A (20A) Single Phase
AC200V6.5A (15A) AC200V7.4A (15A)
Weight Approx. 51kg Approx. 64kg
Shelf/Support Stainless Punching Metal 2pcs./4pcs.

*The performance shown here is the value under the condition of the ambient temperature of 23deg.C±5deg.C, humidity of 65%RH±20%.

*The projection is not included for Internal dimensions and External dimensions.

Control Panel Interior
Exhaust port

Cable Hole Shelf (with 2 support)

Temperature rising curve (AC100V, room temp 23deg.C)

Optional items
Remark Description Model No. Product Code
Stand: ON61 (for DS401/601) DS Series 211856
Stand: OT42 (for DS401) DS Series 212348
Stand: OT62 (for DS601) DS Series 212349
  Stacking support (with cooling fan) for DS401/411, OD40 DS Series 212822
  Stacking support (with cooling fan) for DS601/611, OD60 DS Series 212823
  Shelf with support 2 pcs., Stainless punching metal shelf (loading up to 15kg/shelf) for DS401/411 DS Series 212246
  Shelf with support 2 pcs., Stainless punching metal shelf(loading up to 15kg/shelf) for DS601/611 DS Series 212266
  External communication adapter set OIN90 DS Series 211880
Cable Port, 25mm dia ODK32 DS Series 281121
Cable Port, 50mm dia ODK34 DS Series 281122
External communication terminal ODS16 DS Series 212981
Temp. output terminal ODS18 DS Series 212982
External alarm output terminal ODS22 DS Series 212983
Time up output terminal ODS24 DS Series 212984
Operation signal output terminal ODS26 DS Series 212985
Event output terminal ODDS28 DS Series 212986
1. The item marked "●" in the column of "Remark" shall be ordered together with the main unit.
2. The transportation cost will not be required if the order is together with main unit except the item marked "○".
In case you order the item marked "○" together with the main unit, please ask Yamato to obtain the correct transportation cost.

Dimensional Drawing (mm)
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