Positive pressure manifolds: Must have or equal to approximately 48 ports. Must have or equal to a rotameter and rotameter valve. Must have or equal to a low flow (pressure) and high flow (pressure) switches. Must have or equal to a flow rate (pressure) selector. Must have or equal to two (2) compression switches. Must have or equal to a minimum of 4 toggle switches to allow user to turn on/off gas to row(s) containing samples. Must, or able to, be compatible with SPE or SLE columns. Gas supply: minimum pressure of approximately 60 psi (4.1 bar), maximum pressure of approximately 100 psi (6.9 bar), Optimum pressure of approximately 80 psi (5.5 bar) Dimensions: Approximately 335 x 305 x 390 mm (13.2” X 12.0” x 15.4”) Weight: Approximately 28-35 pounds Operating Temperature: approximately 5-40 degrees Celsius
