Sanyo MIR-162 User manual

Service Manual
Incubator
SANYO Electric Co., Ltd.
Biomedical Business Division
MIR-162
MIR-262
SM9910256
This service manual is the revised and updated version of SM720061. REVISION
FILE No.

Effective models
This service manual is effective for following models.
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Model Product code Power source
MIR-162 823 244 51 110V 60Hz
823 244 52 220V 60Hz
823 244 53 240V 50Hz
823 244 54 230V 50Hz
823 244 55 120V 60Hz
823 244 56 220V 50Hz
823 244 57 240V 50Hz
823 244 58 220V 50Hz
823 244 59 220V 60Hz
823 244 60 115V 60Hz
823 244 61 115V 60Hz
823 244 62 230V 50Hz
823 244 63 230V 50Hz
823 244 64 240V 50Hz
823 244 65 220V 50Hz
MIR-262 823 245 51 110V 60Hz
823 245 52 220V 60Hz
823 245 53 120V 60Hz
823 245 54 220V 50Hz
823 245 55 230V 50Hz
823 245 56 220V 60Hz
823 245 57 220V 50Hz
823 245 58 240V 50Hz
823 245 59 115V 60Hz
823 245 60 220V 50Hz
823 245 61 115V 60Hz
823 245 62 240V 50Hz
823 245 63 220V 50Hz
823 245 64 230V 50Hz
823 245 65 230V 50Hz
823 245 66 240V 50Hz
823 245 67 240V 50Hz
823 245 68 220V 50Hz

Contents
Page
Specifications ............................................................................................ 1
- Structural specifications................................................... 1
- Performance specifications.............................................. 1
Dimensions................................................................................................ 2
Air jacket.................................................................................................... 4
Components on PCB................................................................................. 5
Connections on PCB ................................................................................. 6
Electric parts.............................................................................................. 7
Specifications of sensor............................................................................. 8
Wiring diagram .......................................................................................... 9
Circuit diagram ........................................................................................ 10
Control specifications .............................................................................. 11
Temperature calibration ........................................................................... 15
Test data .................................................................................................. 16
- Pull-up test..................................................................... 16
- Temperature distribution data ........................................ 17
- Pull-up graph ................................................................. 19
- Pull-down graph............................................................. 21
Instruction manual ................................................................................... 22

- 1 -
Structural specifications
Model MIR-162 MIR-262
External dimensions W580 x D595 x H820 (mm) W730 x D645 x H870 (mm)
Internal dimensions W450 x D460 x H450 (mm) W600 x D510 x H500 (mm)
Effective capacity 93L 153L
Exterior Painted steel
Interior Stainless steel
Outer door Painted steel
Inner door Tempered glass
Insulation Glass wool
Shelf Stainless steel plate, 2pcs. Stainless steel plate, 3pcs.
Shelf support 4 6
Temperature controller Sensor K, PID control
Temperature display Digital display
Timer Electronic timer with delay timer
Circuit breaker 10A
Overheat prevention
mechanism
Built-in thermister (electric circuit), Thermal guard
Heater 200W 300W
Weight 44 kg 61 kg
Performance specifications
Model MIR-162
Temperature control range Ambient temperature +5Υto 60Υ(setting available to 80Υ)
Temperature fluctuation +/- 0.5Υ
Temperature variation +/- 1Υ(AT37Υ)
Rated voltage AC110V AC115V AC220V AC220V AC230V AC240V
Rated frequency 60Hz 60Hz 50Hz 60Hz 50Hz 50Hz
Rated power consumption 200W 200W 200W 200W 200W 200W
Model MIR-262
Temperature control range Ambient temperature +5Υto 60Υ(setting available to 80Υ)
Temperature fluctuation +/- 0.5Υ
Temperature variation +/- 1Υ(AT37Υ)
Rated voltage AC110V AC115V AC220V AC220V AC230V AC240V
Rated frequency 60Hz 60Hz 50Hz 60Hz 50Hz 50Hz
Power consumption 300W 300W 300W 300W 300W 300W
Specifications

- 2 -
Dimensions
<MIR-162>

- 3 -
<MIR-262>

- 4 -
Air jacket

This model has air jacket temperature control system which making some space around cabinet
and inside isolation, as figure shown.
Air jacket temperature control system enables to conduct heated air in the space.
Outer box
Glass wool
Air
Inner box
Chamber

- 5 -
Components on PCB
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1. Mode of DIP switch (SW01)
a … Fan switch is used for fan motor
b … Capacity switch is used depend on cabinet capacity
㻌c ... Adjust switch is used for shipping out only
2. How to initialize back-up memory
When you disconnect connecter(s) during power is given to PCB, and display and all switches are
locked by miss-feeding of micro-processor, follow the procedure (1) to (4) to initialize back-up memory.
(1) Turn back-up switch off.
(2) Turn power switch off.
(3) Turn power switch on.
(4) Turn back-up switch on.
Back-up switch Power relay
Buzzer
1
5
Triac
Heater
Power transformer
(For Zero calibration)
Key lock switch
Dip switch
a b c
MIR-162
abc
MIR-262

- 6 -
Connections on PCB

The following table shows the connections of connectors on main PCB.
Connector Connects to Usage
CN1
#1 - #2: Heater
#5: Triac
To heat chamber.
To control heater ON/OFF
CN2 #1 - #4: Power transformer To supply the power to PCB.
CN5 #1 - #4: Thermal guard
To turn heater off when it detects abnormality in
chamber temperature.
CN7 Front board (CN10)
CN8 Front board (CN11)
CN9 Front board (CN12)
CN13 #1 – #2: Key lock switch
CN14 #1 - #2: Thermister sensor To detect chamber temperature.

- 7 -
Electric parts
Thermister sensor Type 103AT-1 103AT-1 103AT-1
Rating 10K䃈10K䃈10K䃈
Key lock switch Type MFS201N-Z MFS201N-Z MFS201N-Z
Rating AC125V, 1A AC125V, 1A AC125V, 1A
Thermal guard Type OHD3-85B OHD3-85B OHD3-85B
Rating 85䉝OFF 85䉝OFF 85䉝OFF
Power relay Type G4F-11123T G4F-11123T G4F-11123T
Rating 20A, DC12V 20A, DC12V 20A, DC12V
Circuit breaker Type BS-1110 IR11A2E101R BS-1110
Rating 110V, 10A AC250V, 10A 110V, 10A
Triac Type TG16C60 TG16C60 TG16C60
Rating 16A, 600V 16A, 600V 16A, 600V
Varistor Type ERZV14D241 ERZV14D511 ERZV14D511
Heater Rating 57V, 100W 110V, 100W 110V, 100W
Power transformer Type GS-4891B GS-4891A GS-4891A
Rating 110V, 7VA AC200, 230V AC200, 230V
Noise filter Type ZHG2206-11S
(CE mark model only) Rating AC250V, 6A
Breaker switch Type ZHG2206-11S
(CE mark model only) Rating AC250V, 6A
220V, 60Hz110/115V, 60Hz
MIR-162/262 220~240V, 50Hz