Products for Industry

Water Bath (High Precision Constant Temp., Programmable) BH401

Item Code : 222057
Model : BH401

Left side BH401 Right side BH501

Control Panel

Heating Performance(Heat medium:water)

The control panel section can be disconnected from the main unit and can be operated remotely. Option: Remote control cable 5 m is required.

Rear side (circulation port)

Water Bath (High Precision Constant Temp., Programmable) (BH401)

Water Bath (High Precision Constant Temp., Programmable)BH401

Product Summary

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

Features of Water Bath (High Precision Constant Temp., Programmable) (BH401)

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.



Item Code 222057
Model BH401
Circulation system Water jet pump circulation / External closed circulation
Operating temperature range RT+15~100°C
Temperature adjustment accuracy ±0.01°C (water: RT+15°C~80°C)
Temperature indication unit 0.1℃
Circulation Pump Water jet pump circulation
Pump max. flow (50/60Hz) 14/15L/min. (Circulation pressure loss when below 10kPa)
Pump max. lift (50/60Hz) 2.8/3.4m (water flow about 0.5L/min)
Heater 1kW
Ambient temperature range 5~30°C
Temperature control / system PID control by microprocessor
Sensor W sensor: Pt 100Ω A-class (for temperature control)+ K-thermocouple (for overheat prevention) double sensor
Timer 1min.~99hrs.59min., 100~9999hrs Timer / Time switchable function
Operation function Fixed temp. operation, quick auto stop, auto stop / start at setting time, program operation (max. 99 steps, repeating, gradient operation), program auto start operation
Safety device Earth leakage circuit breaker, key lock function, breakout protection function, automatic overheating prevention, independent overheating prevention, float switch
Other functions RS485 communication function, Temperature output terminal, alarm output terminal, calibration offset function
Accessories Hose nipple (1/2×ø14mm) 2pcs.
Internal dimensions(W×D×H mm) 239×299×200mm
External dimensions(W×D×H mm) 310×396×607mm
Remarks(dimensions) Effective tank dimensions W227×D150×H200mm(Frontage corner R34) Tank height 307㎜(rubber height included)Internal capacity13L(Liquid volume approx.10L)
Power Source AC220V 5A
Single-phase with step down transformer
Weight 20kg

Maintenance and warranty

Conditions: temperature : 20 deg.C (no load)
External dimensions do not include protrusions.


Optional items

Silicon hose for circulation (OBH12)
External communication adapter (RC232C) (ODK18)
External Pt sensor (OBH22)
Communication cable for remote control (OBH14)
Remote control panel stand
Remote control power

Same series products

Water Bath (High Precision Constant Temp., Programmable) (BH501)