MC Series Peripheral

Master Chamber: In the Master Comparison method, a non-leaking work is used as the master.
The Master Chamber replaces this non-leaking work.
Robust construction.
Can be used as a stable master for a long time.

Basic Specs.

Types of Master Chamber

Model	Internal volume adjustment range	Maximum operating pressure
MC-F02A(100C)^*1	Approx. 56 mL	800 kPa
MC-F02A(200C)^*1	Approx. 109 mL	800 kPa
MC-50B	25 to 50 mL	800 kPa
MC-100B	50 to 100mL	800 kPa
MC-200B	100 to 200mL	800 kPa
MC-500B	231 to 500mL	800 kPa
MC-1000B	527 to 1000mL	800 kPa
MC-2000B	986 to 2000mL	800 kPa

* 1 Only for Mastering. The fins cannot be rearranged.

Features / Functions

Role of master

Pressurizing inside the work causes rise in air temperature due to adiabatic compression.
This slight temperature change becomes an error factor for leak test.
In differential pressure decay leak test, the reference (master) cancels out the temperature change of the work.

Mechanism and structure of Master Chamber

The Master Chamber can be adapted to the temperature characteristics of the work by changing the ratio of volume to surface area by the number and spacing of the fins.
Master Chambers A and B below have different surface areas, causing difference in temperature stabilization, which results in change in pressure change characteristics.

Advantages of using a Master Chamber

Can be adjusted according to the work thermal change characteristics.
Small and space-saving.
Costs less than using a work as a master.
Secure sealing with an o-ring ensures long-term reliable use.
No volume change and excellent reproducibility of measurement.
When used with Mastering, a single Master Chamber can be used for multiple types of work.