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A constant temperature bath LOIP LT-820 designed for Reid vapor pressure determinations of liquid petroleum products and liquefied petroleum gases according to ASTM D323, D1267; ISO 3007, 4256 and related specifications. LOIP LT-820 can be installed as both floor free-standing unit and benchtop instrument. Unlike other baths for similar purposes, LOIP LT-820 has transparent windows, which helps to observe Reid cylinders in order to be sure in their leak tightness, which, in turn, is one of the main conditions of the correct measurement. The baths accommodates 3 standard Reid cylinders (not included) A draining tap, installed in the bottom of the baths, makes its refilling very simple.

Features and benefits:

  • Microprocessor PID control provides quick temperature stabilization without overshoot. Special control algorithm manages PID parameters so that eliminate influence of mains oscillations and ambient temperature instability.
  • A high performance motorized stirrer ensures temperature uniformity throughout the baths.
  • Easy readable red LED display shows current and set temperature with the resolution 0.1°С
  • Splash-proof control panel
  • In case of malfunction (e.g. due to low fluid level) auto-testing system stops the instrument, gives visual and acoustical alarm and displays the causes
  • Built-in cooling coil, when connected to tap water, permits operation at ambient or below ambient temperatures
  • Simple user calibration facility for optimum accuracy at the required operating temperature
  • Socket for reference thermometer on the unit lid


Temperature range
without external cooling (Tambient +5)…100°C
with tap water cooling (Twater +5)…100°C
with an external chiller 0…100°C
Places for hydrometer cylinders four round openings 60 mm dia.
Cylinder dimensions (height*diameter) 500*50 mm
Temperature accuracy±0.2
Temperature stability ±0.1
Display resolution 0.1
Mains supply 200…250 V, 50 Hz
Power consumption 2200 VA
Filling volume 33 l
Overall dimensions (WxDxH) 560x240x690 mm
Weight without fluid 27 kg

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