Memmert UNB-100

Memmert Model UNB 100.
30 °C to 220 °C.
w x h x d: 470 x 520 x 325 mm

For standard temperature control applications with insensitive load, the Basic class is recommended. An electronic PID controller with an integrated self-diagnosis system ensures reliable and exact temperature control.

• Temperature range: 30 °C (at least 5°C or 10°C above ambient) to 220 °C
• Temperature variation (time): < ±0.5 °C at 150 °C
• Double overtemperature protection: If the electronic heating control should fail, heating is switched off at a fixed level of 10 °C above the setpoint. In addition a mechanical temperature limiter, TB, switches off heating permanently if the maximum permitted oven temperature is exceeded by approx. 10 °C.
• A high-quality platinum temperature sensor Pt100 (DIN class A) in a 4-wire circuit (for stable long-term transmission of measurement signals)
• Programmable digital timer (1 min. to 99 hrs 59 min.)
  Manually adjustable air flap for fresh air intake
• Visual alarm if temperature is exceeded
• Function signals for stand-by, operating mode, heating and overtemperature

Standard equipment

Ventilation and Control

• natural convection
• continuous adjustment of pre-heated fresh air admixture
• vent connection with restrictor flap
• microprocessor PID-temperature controller with integrated autodiagnostic system with fault indicator
• one Pt100 sensor class A in 4-wire-circuit
• integrated digital timer (1 min. up to 99 h 59 min) to switch off heating to stand-by mode
• digital LED- display of set and actual temperature as well as remaining process time
• resolution of display for set value and actual value 0,5 °C

Overtemperature protection (double)

• in case of total breakdown of sensor, the heating is switched off at approx. 10 °C above set value
• in case of failure of the switching element, the heating will be controlled by an additional relay approx. 10 °C above the set temperature
• in case of a faulty sensor (incorrect measuring values) or the total breakdown of the controller the heating is switched off at approx. 10 °C above the max. oven temperature by the mechanical temperature limiter TB protection class 1
• for very sensitive and/or valuable load in terms of being non-reproducable, we recommend ovens of our E- and P-class guaranteeing an even higher safety standard

Textured Stainless Steel Casing

• fully insulated stainless steel door with double locking and 4-point adjustment
• rear zinc-plated steel

Interior - Heating Concept

• easy-to-clean interior, made of stainless steel, reinforced by deep drawn ribbing with integrated and protected large-area heating on four sides
• 1 perforated stainless steel shelf, non-tipping