Digital Corrosion Resistant Programmable Stirring Hot Plates

SKU: HS70 Category:

Designed for corrosive environments where other stirring hot plates would be destroyed quickly by vapors or spills. It can be purged using an inert gas, such as lab air, through a fitting on the rear of the unit. Purging provides a positive gas pressure inside the unit to prevent corrosive gases from entering the chassis.

The HS70  is supplied with a corrosion resistant 6″ ptfe immersion probe.

Price: $ 2200.00

Click Accessories for other probes and calibration kits.


Data Sheet


EchoTherm™ Model HS70 Corrosion-Resistant Fully Programmable Digital Stirring Hot Plates are the most advanced and easy-to-use units available. They are designed with a purge port for infusing an inert gas, such as lab air, into the chassis of the unit. This positive pressure inside the chassis causes the gas to flow out of any openings and prevents corrosive gasses form entering the chassis, improving unit life greatly. In manual operation, simply select the parameter to be set and scroll to the value needed. The unit will do the rest. In the programmable mode, routines can be stored for instant recall and use. The stored routine will run automatically, without attention, and exactly the same time after time.

Programs can be simple or complex depending upon the need. Multiple temperatures, temperature ramp rates, stirring speeds and timed events can be stored. When run, the unit monitors the program to be sure it runs exactly as written. Complete walk-away automation.


  • 10-program memory stored in CMOS. No batteries required
  • Each program can be 10 steps, where each step includes a temperature, stirring speed, time and heating rate
  • Repeat any program 1–98 times automatically. Infinite repeats settable
  • Programmable and non-programmable operation
  • Platinum RTD temperature measurement for ±1% accuracy
  • 8” solid ceramic heater top for quick heating on a flat, white, chemically resistant surface
  • Settable to 450˚C in 1˚ increments
  • Temperature ramping for exact heating and cooling rates
  • PID temperature control to 1°C on plate surface or solution with probe
  • Stir up to 2 liters of aqueous solutions from 100–1500 rpm
  • Timer goes up to 99 hours, 59 minutes, 59 seconds with user settable Auto-Off
  • 6” ptfe probe provided
  • Electronic calibration stored in CMOS
  • RS232 interface for control or recording data on a computer
  • NTP pipe-to-pipe, ¼” purge gas fitting on rear of chassis
  • 12-month warranty
  • ETL, CSA and CE compliant


  • Acid digestions or dissolution of minerals with acids or bases and at high temperatures
  • Cleaning silicon wafers in aggressive chemicals
  • working at high temperatures with acids or bases
  • Sample preparation by digestion or dissolution for determining the metal content of materials using aggressive acids or bases
  • Dissolution of polymers or resins
  • cleaning metal or electronic parts with aggressive chemicals
  • Optical coating of filters and wafers
  • Making polymers in a silicone bath
  • Heating solvents

Full Product Specifications

Memory Capacity10 programs
Individual Program Capacity10 steps
Repeat a program automatically1 to 98 times or infinitely
Temperature Measurement
Platinum RTD100 ohm at zero in plate and in probe
Hot Plate
Dimensions8” (20.3 cm) x 8” (20.3 cm)
Maximum plate temperatureCeramic 450°C
Temperature control typePID
Temperature accuracy±1%
Temp stability1°C
Heater power in watts600 watts
Speed range unloaded100–1500 rpm
Capacity2 liters water
Readability1 rpm
Settabilitynearest 10 rpm
Watts600 Watts
VAC115 VAC, 50/60 Hz (230 VAC available upon request)
Fusedhigh line
Line cord Detachable, 6 foot (1.8 meter), three-wire grounded
Dimensions (unpacked)
Width9.125” (23.18 cm)
Depth15.75” (40.01 cm)
Height4.75” (12.07 cm)
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