Koehler Lead Corrosion Apparatus

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Constant temperature apparatus rotates copper and lead test panels in lubricant samples to determine corrosiveness to lead per FTM specifications. Panels are rotated at 600rpm in samples maintained at 163°C (325°F) and aerated at 0.94L/min. (2.0 Cu. ft./hr.). Test panel shafts ride on ball bearing spindles driven by a 1⁄15hp motor. A counterbalanced support bar positions the drive shaft for testing or for mounting and removal of test panels. When the support bar is raised, a safety microswitch automatically stops the drive motor to prevent splashing of hot oil. Fully insulated bath features double-wall stainless steel construction, with a built-in support rack to suspend test cells vertically at the proper depth. Microprocessor PID control provides quick temperature stabilization without overshoot, and the bath is protected by an overtemperature control circuit that interrupts power should bath temperature exceed a programmed cut-off point. Dual LED displays provide actual and setpoint temperature values in °C/°F format. Communications software (RS232, etc.), ramp-to-set and other enhanced features are available as extra cost options. Contact your Koehler representative for information. A 1⁄20hp stirrer thoroughly circulates the bath medium for temperature uniformity. Redundant overtemperature protection is provided by a built-in backup thermostat. Flowmeters and valves mounted on a convenient manifold provide individual air flow control for each test cell.



FTM 791-5321

Testing Capacity

6 lubricant samples

Maximum Temperature

199°C (390°F)

Temperature Control Stability

±0.05°C (±0.1°F)

Air Flow Control

0.94±0.047L/min. (2±0.1 Cu. ft./hr) six (6) flowmeters mounted on a common manifold


Key Features

  • Conforms to FTM 791-5321 specifications
  • Six-sample capacity
  • Microprocessor programmable high accuracy temperature control