Constant Low Temp. Water Baths | Standard

BB311C/411C/611C

Constant low temperature water baths that can adjust from -30~+80℃ with an accuracy of ±0.1℃.

Features

• Capable of achieving temperature adjustment precision of ±0.1℃.
• Extend the use of the water bath itself while ensuring effective space inside the bath.
• Equipped with external circulation function.
• Switching between internal and external circulation can be easily achieved with a simple operation of the water valve.
• Shelf height can be adjusted in 3 segments, allowing even small containers to be used.
• Primarily operates with automatic stop and automatic start functions, with RS485 communication function, temperature output terminal (4~20mA) as standard features.

Safety

• Self-diagnostic function, leakage circuit breaker to prevent overcurrent, pressure detection for the refrigeration unit, anti-dry heating float switch, overload protection relay for the refrigeration unit, delayed function for refrigeration unit protection.

Shared Specifications

Specification	Details
Operating temp. range	-30~80℃
Temp. adjusting accuracy	±0.1℃
Temp. distribution accuracy	±0.3℃
Temp. unit	0.1℃
Temp. control	PID control
Operation functions	Fixed operation, automatic stop operation, automatic start operation
Temp. sensor	Temperature regulator: Pt thermal resistor, for overheat protection: K-type thermocouple
Temp. setting/display	Digital setting, digital display
Device circulation capacity (50/60Hz): Max. flow rate	2.8/3.2L/min (jet stirring)
Device circulation capacity (50/60Hz): Max. lift head	1.1/1.4m
Heater	Stainless steel heating pipe
Cooling pipe	Nickel-plated copper
External circulation port	Ø11 mm (outlet & return)
Operating ambient temp. range	5~30℃
Safety device	Self-diagnosis function, overload protection relay for the refrigeration unit, pressure detection for the refrigeration unit, anti-dry heating float switch, delay function for refrigeration unit protection, key lock function, automatic overheating protection function, leakage protection switches for over-current, overheating protector
Other functions	Water valve, condenser filter, RS485 communication function, temperature output terminal (4-20mA), refrigeration unit pressure indicator, deviation correction function, power failure compensation function
Accessories	Top cover, drainage pipe, overflow pipe, shelf

Difference Between Models

Model	BB311C	BB411C	BB611C
Cooling capacity	Approx. 420W (361Kcal/h), at liquid temp. 15°C	Approx. 510W (439Kcal/h), at liquid temp. 15°C	Approx. 730W (628Kcal/h), at liquid temp. 15°C
Refrigerator, refrigerant	300W, R404A	350W, R404A	600W, R404A
Water bath dimensions (WxDxH mm)	150×300×170	250×315×190	330×435×200
Effective bath dimensions (WxDxH)	120×140×140	220×150×160	300×285×170
Internal bath capacity	6L	13L	26L
External dimensions (WxDxH mm)	395×520×880	420×550×880	440×650×880
Power supply (50/60Hz)	AC220V 7A	AC220V 9A	AC220V 10A
Weight	Approx. 46kg	Approx. 53kg	Approx. 70kg
Heater	850W	850W	1.2KW

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As the authorized distributor of Yamato Scientific in Indonesia, PT Universal Labora Analitika is ready to support your needs from product consultation to delivery and after-sales support.