Vacuum Gauges

MKS 628B Series Capacitance Manometers

MKS has improved on the industry standard Type 628A by incorporating new features into the Type 628B Baratron^® capacitance manometer.

Features

• Temperature regulated to 100° C
• Accurate to 0.25% of reading
• Includes updated temperature control electronics to provide superior long-term stability and repeatability
• Optional heater and temperature status LED/switches indicate that the heater (which maintains the sensor temperature to 100° C) is at temperature
• Available from 0.05–1,000 mm Hg (Torr)
• Input power is ±15 VDC
• Output signal is 0–10 VDC
• Replaces the Type 628A and Type 128 absolute capacitance manometer
• Inconel^® construction for excellent resistance to corrosive gases

Specifications Table

Measurement Method	Capacitance Manometer
Accuracy (% of measurement)	0.25% (1, 2, 10, 20, 100, & 1,000 Torr FS) 0.5% (0.05, 0.1 Torr FS)
Temperature (operating)	15-50° C
Max. Pressure	45 psia
Materials Exposed to Vacuum	Inconel
Analog Outputs	0-10 VDC
Internal Volume	6.3 cc
Input Power	±15 VDC ±5% @ 0.6A max.
Temperature Coeff. (zero)	0.002%(1-1,000 Torr FS) 0.01% (0.1 Torr) 0.02% (0.05 Torr)
Temperature Coeff. (span)	0.02% of reading/° C
Full-Scale Pressure	0.05, 0.1, 1, 2, 10, 20, 100, & 1,000 Torr
Resolution	0.001% of F.S. (0.1 Torr or greater) 0.002% of F.S. ( 0.05 Torr)

Product Configuration Ordering Table

Build your own gauge or controller below by choosing the base unit and options. A part number and price will automatically be generated for you to review and add to your shopping cart.

Note: Due to the custom nature of these products, they are no cancel / no return items.

Unit	Base Price
MKS 628B Capacitance Manometer	$1,654.00
Option	Additional Price
Full Scale Range       0.05 Torr   $104.00     0.1 Torr   $0.00     1 Torr   $0.00     2 Torr   $0.00     10 Torr   $0.00     20 Torr   $0.00     100 Torr   $0.00     1,000 Torr   $0.00 Fittings       1/2" Tube End   $0.00     8 VCR® Female   $68.00     1-1/3" CF (rotatable)   $68.00     KF16   $68.00     8 VCR® Female   $68.00     2-3/4" CF (rotatable)   $68.00     KF25   $68.00 Accuracy       Standard: 0.25% of Reading (1-1,000 Torr FS)   $0.00     Standard: 0.5% of Reading (0.05, 0.1 Torr FS)   $0.00 Readout Options       Standard Display   $0.00     Optional Heater/Temp. Status Display   $99.00 Connector       15-pin Type D with Thread Lock   $0.00     15-pin Type D with Slide Lock   $0.00

Questions? Email us:   [USA]   |   [Canada]   |   [Europe]   |   [China]   |   [Rest of World]

Accessories Table

Accessory Type	Description	PartNo	Price (USA)	Add To Cart
Interconnect Cable	From 627 manometer to 250, 244, 260PS-3 (Y-cable, 3m)	MCB128210	P.O.R.
Interconnect Cable	From 627 manometer to PDR2000 (3m)	MCB2000S1M1	$104.00
Interconnect Cable	From 627 manometer to PR4000, 146, 651 (3m)	MCB259510	$57.00

Questions? Email us:   [USA]   |   [Canada]   |   [Europe]   |   [China]   |   [Rest of World]