Orifice Plate Introduction- The Opening Where Ions Enter The Mass Spectrometer

 The orifice plate is the opening where ions enter the mass spectrometer, one of the key components in the mass spectrometer.

The function of the orifice plate is to have a voltage applied to it and to help prevent ions from clumping together.

 

 

The good orifice plate should be included below factors

1. Detachable heater
It uses an MCH heater which is the abbreviation of metal ceramic heaters.
It refers to a ceramic heating element in which a meta tungsten or molybdenum manganese paste is printed on a ceramic casting body and laminated by hot pressing and then co-fired at 1600°C, in a hydrogen atmosphere to co-sinter ceramic and metal.

 

MCH ceramic heating element is high-efficiency, environmentally friendly, and energy-saving.

 

MCH Heater has the advantages
Energy-saving, high thermal efficiency, unit heat power consumption is 20-30% less than PTC;

The surface is safe and non-charged, with good insulation performance, can withstand the withstand voltage test of 4500V/1S, no breakdown, and leakage current <0.5mA;

No impulse peak current; no power attenuation; rapid heating; safe, no open flame;

Good thermal uniformity, high power density, and long service life.

 

The most important is for heating evenly, so the MCH heater performs very good in this factor.

The detachable heater design in orifice plate is very economical and practical, and when the heater fails, it can be easily replaced and used, saving the cost and time of replacement.

 

 

2. Precision size of the center hole

The important requirement is the center hole should be very small and high precision of 300-600um, Depending on different requirements, the size of the center hole will be measured by a quadratic instrument before shipment.

 

3. With heating resistance and sensor resistance
Electrical performance test before shipment, including on-voltage test, heating resistance test, sensor resistance test, generally resistance tolerance does not exceed +/-10%.

 

Innovacera provides customized design of the orifice plate and also repairing for the standard model like Sciex 4000/4500/5000 etc.

INNOVACERA’s many years of experience in metallization and ceramic-to-metal sealing production enable us to provide solutions according to your requirements. Our ceramic-to-metal components and analytical instruments components ideal for use in high vacuum, High voltage, and high-pressure applications.

If you need more information, pls contact us.