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BH Series Precision Constant Temperature Water Baths

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BH Series Precision Constant Temperature Water Baths

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Benchtop precision constant temperature bath equipped with high performance controller for higher precision and wider temperature range.

Performance and functions

  • Precision controller enables temperature adjustment accuracy of ±0.01°C (at 20°C)
  • BH501 can be used as precision water or oil bath
  • Maximum of 99 steps of programming operation, fixed temperature operation, quick auto stop, auto stop and auto start functions
  • RS485 communication function, temperature output terminal (1~5V), alarm output terminal, calibration offset function and key lock function
  • Better external circulation with powerful circulation pump
  • Circulation pump flow changeable up to 10 patterns
  • Circulated water temperature (closed type) can be controlled precisely by external sensor
  • Control panel can be removed for remote control by using communication cable (sold separately)

Safety features

  • Self diagnostic functions, Earth leakage circuit breaker, Empty boiling prevention switch, Automatic overheating prevention, Independent overheating prevention

For more information please see 'Additional Info' tab.

Circulation systemWater jet pump circulation (closed system circulation)
Operating temperature range *¹RT+15~100°CRT+15~200°C
Temperature adjustment accuracy±0.01°C (water: RT+15°C~80°C), ± 0.1 (silicon oil: KF96/50cst 70°C~200°C)
Temperature indication unit0.1°C
Circulation Pump (50/60Hz)Water jet pump circulation
Pump max. flow14/15L/min. (Circulation pressure loss when below 10kPa)
Pump max. lift2.8/3.4m (water flow about 0.5L/min)
Ambient temperature range5~30°C
Temperature control / systemPID control by microprocessor
Temperature setting / display methodDigital setting / display
SensorW sensor: Pt 100Ω A-class (for temperature control)+ K-thermocouple (for overheat prevention) double sensor
Timer1min.~99hrs.59min., 100~9999hrs Timer / Time switchable function
Operation functionFixed temp. operation, Quick auto stop, Auto stop / start at setting time, Program operation (max. 99 steps, repeating, gradient operation), Program auto start operation
Safety deviceEarth leakage circuit breaker, Key lock function, Breakout protection function, Automatic overheating prevention, Independent overheating prevention, Float switch
Other functionsRS485 communication function, Temperature output terminal, Alarm output terminal, Calibration offset function
DimensionsW239 x D299 x H200mm
Internal capacity13L (liquid 10L)
Effective water bath dimensionW227 x D150 x H200mm (front corner R34)
External dimensions *²W310 x D396 x H607mm (water bath height)
Power sourceAC115V 10A / AC220V 5AAC115V 11.5A / AC220V 6A
AccessoriesHose nipple (1/2 x ø14mm) 2pcs.

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Thomas No.
Mfr. No.
Programmable Precision Constant Temperature Water Bath, 13L 115V 10A / 220V 5A 50/60Hz
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Thomas No.
Mfr. No.
Programmable Precision Constant Temperature Water Bath, 13L 115V 11.5A / 220V 6A 50/60Hz
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