Wafab International - A global supplier of Solar Cell Processing, wet processing stations and components

WAFAB International Products

Quartz Tanks

Megatherm™ Recirculating Bath

Wabaf Quartz Tanks General Information

WAFAB's Megatherm™ High Temperature Quartz Recirculating bath is manufactured with pure fused quartz for low contamination environments and high temperature applications with three important considerations in mind: safety, reliability and clean operation. The Megatherm™ Quartz Center Feed Recirculating baths operate in conjunction with a variety of pneumatic diaphragm pumps. It's four sided cascading inner weir with serrated edge, TEFLON® diaphragm pump, TEFLON® filter chamber, and TEFLON® plumbing all contribute towards a safe and clean operating environment. The heater design was developed to provide efficient heat transfer, rapid bath heat-up, durability and longevity. Flow rates will depend on tank, pump size, and filter porosity

Features

Molded Seamless Tank
Megatherm™ systems are designed with a seamless, molded quartz inner tank, delivering a low contamination and particle-free environment.

Secondary Containment Tank
The inner quartz tank is protected by a flame retardant polypropylene containment tank with an exclusive flange design that offers a labyrinth style seal protecting the heater pads from acid fumes and fluid overflow.

Redundant Over Temperature Safety
Each Megatherm™ has indirect heating elements for fast and reliable heating. This is accomplished by using external panel heaters mounted to the outside of the quartz tank. The quartz tanks have two redundant safety circuits that are placed directly on the heater pads. The first one is a bi-metallic snap switch and the second is a J type thermocouple. The bimetallic switch is an auto-resetting circuit, and the J type thermocouple is a manual reset circuit.

Other Features

N2 Liquid level sensor with back pressure switch, regulator and flow meter.
Drain or no drain option
Electrical Service:120/208/240 VAC, Single Phase or Three Phase, 50/60Hz.
10:1 TEFLON® dilution drain valve option

Product Highlights

The MPC-102 is a self contained, fully programmable, microprocessor-based temperature controller that has been configured exclusively for WAFAB. This controller is designed to operate the Megatherm™ line of quartz baths. The MPC-102 has a full PID control scheme, digital display and timer. A 10 key membrane face panel allows the operator to easily set up the controller and adjust the system to meet changing process requirements. The built in timer is capable of implementing a count-up, count-down, and count-thru or freeze display at completion of timing sequences. A J type thermocouple is used to sense bath temperature and a solid state relay enables the controller to

carry the heater load without the need for any external components. The controller has a chemical resistant Kydex enclosure to protect the electrical components from acid fumes and splashes (picture below).

MPC-102

Bath Specifications