二手 KIN-TEK SP61-H2O-SDHA #77298 待售

Moisture generator Built-in 491M secondary dilution for very low moisture standards High purity mass flowmeters Controllers Back pressure regulators Standard SPAN PAC H2O generator specifications: Applications: Calibrate sensitive moisture monitors (100 ppb) Verify moisture sensors and probes Calibrate product quality control monitors Calibrate on-line process monitors Features: Span Pac H2O can be remotely or manually operated High thermal mass oven keeps permeation tube at a constant temperature Oven temperature is factory set to NIST specification Can use disposable, LFH, or ULED type Trace source Permeation Tubes Electropolished, stainless steel tubing reduces moisture adsorption within the system Special vacuum fittings on the input and output ports prevent atmospheric contamination of the system Calibration sample is available at any pressure up to 40 psig for calibration of monitors requiring pressurized sample Mass flowmeter measures the dilution flow to ± 1% of full scale Direct dilution flow readout, accessible dilution flow adjust on the back panel Cabinets that are purged with dry, inert gas to insure the integrity of the system Specifications: Single oven unit with one concentration range Oven capacity: up to (6) 1/4" dia x 5" long disposable permeation tubes or (1) refillable permeation tube Flow range: 0.25 to 5 L/min 491M-SD Secondary Dilution Module Specifications: Extends the range of concentration attained from permeation tubes: Designed to split off a measured flow of calibration gases from a permeation tube system and combine it with a larger flow of clean dilution gas to form lower concentration mixtures Dilution rations: from 3.5:1 to 1000:1 (100 ppb mixture from a permeation tube can be diluted to 100 pptr) Broadens concentration range of single permeation tube: Can increase concentration range up to 20,000:1 (Single LFH tube can be used for concentrations from 1000 ppm down to 50 ppb without changing its operating temperature) Primary design: Span mixture from 491M permeation unit fed into calibration gas 491M-SD 100 ml/min mass flow controller splits off a portion of this flow for redilution Dilution gas is mixed with this small flow of calibration gas to form the final diluted span mixture Variations in calibration gas flow amounts (mass flow controller) and dilution gas flow amounts (mass flow meter) determine final dilution ratios possible 1998 vintage.