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Setting the Temperature

• Press Set key for 3 seconds. it display the code St.
• Press Set key again to display the temperature SETPOINT.

Modify by pressing the UP or DOWN keys.

Changing Parameters - Enter Admin Section

• Press Set key for 3 seconds, it will display the code St.
• Press DOWN arrow to Po. Press Set - 00.
• Press DOWN arrow to password (55). Press Set.
• Choose parameter by scrolling with UP or DOWN arrows.

Select parameter by pressing Set.

• Change parameter settings with the UP and DOWN arrow

• When finished changing parameters press Set.

Parameter

Description

Setting scope

Default

User menu

St

Set cabinet temperature point

LS to US

-80

Administrator menu

Po

Administrator menu password

(The password is 55 and 

cannot be changed)

55

C8

Cabinet temp. probe calibration when below 0°

Use this parameter to match temp display with datalogger

-15.0~15.0

0

C9

Condenser probe calibration (High-temp. compressor loop)

-15.0~15.0

0

C10

Ambient temp. probe calibration

-15.0~15.0

0

C11

High-temp. evaporator probe calibration

-15.0~15.0

0

C13

The Minimum set temp. of cabinet

-95.0~C14

-86

C14

The Maximum set temp. of cabinet

C13~50.0

-40

C15

Maximum temp. of high-temp. evaporator when low-temp. 

compressor turned off

C7~10.0

-12

H1

The cycle time of capillary heating wire

1~300

108

H2

The working time of capillary heating wire

1~90

3

H3

Maximum delay time of capillary heating

1~90

60

A3

Alarm output delay after opening cabinet door

0~60

1

A4

Alarm ringback time when the alarm is not cleared

0~60

10

A5

Maximum temp. of over-temp. alarm of ambient (A5>A6)

A6~70.0

40

A6

Minimum temp. of over-temp. alarm of ambient (A6<A5)

-10.0~A5

5

A7

Delay time of over-temp. alarm of ambient

0~60

10

do1

Door switch controls output

0:Cancel door switch 

1:Alarm when the door open

0

do2

Whether a buzzer response is required when the door is open

0:No   1:Yes

1

Cd1

High temperature alarm starting value of condenser

30.0~Cd3               

38

Summary of Contents for YK205ULT

Page 1: ...Scientific To use this unit properly read this Instruction Manual thoroughly before using this unit Keep this instruction manual around this unit for referring at any time WARNING Carefully read and thoroughly understand the important warning items described in this manual before using this unit Yamato Scientific America Inc Santa Clara CA ...

Page 2: ...esult in a loss of product Yamato will not be held responsible for losses due to unauthorized parameter changes Changing advanced parameters may damage the unit or void your warranty Please contact Yamato before attempting to change advanced parameters Unfamiliar with the operation of a controller Call us for assistance with special parameters Some units can be changed from Celsius to Fahrenheit W...

Page 3: ...tenance must be performed by qualified service personnel Do not use this appliance for other than its intended use Do not cover the front grille or block the rear air entry by placing object up against the cabinet Ensure adequate ventilation If the main supply cord is damaged it must be replaced by the manufacturer its service agent or similarly qualified and skilled persons in order to avoid haza...

Page 4: ...ny overflow Ventilation All models must have clear and unobstructed ventilation from the entire surface area of the front grille Temperature Controller 3 SET RST Enter a parameter setting Switch between menu and parameter Adjust menu and parameters After 3s parameter setting downloads Adjust menu and parameters After 3s parameter setting uploads Exit from parameter settings Press for 3s to force s...

Page 5: ...m of secondary system condenser High temperature protection of secondary system condenser Door open alarm Grid power supply anomaly Normal power supply Parameters 4 Temperature parameter setting Compressor high temperature limit alarm compressor is not running Compressor high temp limit alarm reached unit shut compressor off to cool Compressor low temperature limit alarm compressor is running Comp...

Page 6: ... 0 0 C9 Condenser probe calibration High temp compressor loop 15 0 15 0 0 C10 Ambient temp probe calibration 15 0 15 0 0 C11 High temp evaporator probe calibration 15 0 15 0 0 C13 The Minimum set temp of cabinet 95 0 C14 86 C14 The Maximum set temp of cabinet C13 50 0 40 C15 Maximum temp of high temp evaporator when low temp compressor turned off C7 10 0 12 H1 The cycle time of capillary heating w...

Page 7: ...Product Description 5 ...

Page 8: ...Maintenance 6 Alarm Code ...

Page 9: ... external data logger may be used for this purpose A logger with text email or online access is an added layer of protection for your product load in the event of a temperature excursion Yamato offers NIST calibrated data loggers to match your unit at a very affordable rate Temperature Logging 7 ...

Page 10: ...0 C15 Maximum temp of high temp evaporator when low temp compressor turned off C7 10 0 12 H1 The cycle time of capillary heating wire 1 300 108 H2 The working time of capillary heating wire 1 90 3 H3 Maximum delay time of capillary heating 1 90 60 A3 Alarm output delay after opening cabinet door 0 60 1 A4 Alarm ringback time when the alarm is not cleared 0 60 10 A5 Maximum temp of over temp alarm ...

Page 11: ...t the discretion of Yamato Warranty Conditions This warranty shall have force and effect only if all items are used with proper circuits voltages and frequencies and the operation thereof is in accordance with instructions furnished by the manufacturer This warranty shall not extend to such parts as refrigerants finishes belts and dryers This warranty shall not extend to ordinary wear and tear or ...

Page 12: ...and materials are subject to a 25 restocking fee Shipping and handling cost are non refundable All retrofitted customized and special order item sales are final and non returnable In Case of Request for Repair If the failure occurs stop the operation turn OFF the power switch and unplug the power plug Please contact the sales agency that this unit was purchased or Yamato Scientific s sales office ...

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