User manual DHI INSTALLATION OF REGULATOR KIT ONTO 12 IN. MOLSTIC-S MOUNTING PLATFORM PN 401881

[. . . ] This upgraded configuration is ideal for the situation where the device under test (DUT) will be tested while plumbed downstream of the molbloc-S. High pressure gases are potentially hazardous. Energy stored in these gases can be released unexpectedly and with extreme force. High pressure systems should be assembled and operated only by personnel who have been instructed in proper safety practices. Thread the VCR male union (6) into the regulator's outlet port female VCR swivel nut and tighten finger-tight. [. . . ] Place a new VCR gasket into the regulator's outlet port female VCR swivel nut (5). Figure 2. molstic-S Nut Plate Place the flat side of the 60 mm nut plate under the molstic-S platform (See Figure 2). Align it with the holes in the platform and the regulator bracket. Thread the two M4 socket head cap screws and M4 flat washers through the regulator bracket and tighten them securely into the nut plate. SYSTEM PRESSURIZATION AND REGULATOR ADJUSTMENT During system operation, be extremely careful not to apply pressure in excess of the maximum operating pressure of the molbox: 600 kPaa (87 psia) for molbox1-A700K; 250 kPaa (36 psia) for molbox1-A350K. Once the test system with molbloc-S and molstic-S has been completely interconnected, the following procedure should be used for its safe pressurization and operation. The outlet pressure of a pressure reducing regulator is controlled by adjusting the position of the control knob. Rotating the knob in the clockwise direction raises the outlet (control) pressure. Counterclockwise rotation, coupled with venting of the downstream side of the regulator plumbing, lowers the outlet pressure. molstic-S regulators are NOT self-venting so the outlet pressure will not decrease with counterclockwise rotation of the control knob unless the downstream gas is allowed to escape. Make final adjustments of control pressure in the direction of increasing pressure in order to obtain the most accurate and stable set point. clockwise raises the outlet pressure. Rotate counterclockwise to lower the outlet pressure. Increase the system pressure to the desired DUT operating pressure. Make final adjustments of control pressure in the direction of increasing pressure in order to obtain the most accurate and stable set point. Adjust the regulator to obtain the desired operating pressure. Provide additional margin only if the final pressure will be within the safe operating range of the molbox. Regulator Adjustment Once the regulator has been adjusted to the desired pressure its adjusting stem should be locked down to prevent further adjustments. This will help protect the molbox RPTs from over-pressurization. Remove regulator knob cover: Use a small flat screwdriver to remove the plastic cap on the top of the regulator adjustment knob. Loosen jamb nut: Using the properly sized socket wrench, loosen the jamb nut located on top of the adjustment knob. Adjust knob position: Rotate the regulator adjustment knob clockwise until it gently bottoms out against the regulator body. Tighten jamb nut: Hold the adjustment knob in position while using the socket wrench to tighten the jamb nut against the top of the adjustment knob. [. . . ] Refer to molbox Operation and Maintenance Manual for details. Turn on gas supply: Apply the supply pressure to the pressure control regulator. Slowly raise system pressure to desired test pressure: Rotating the regulator's control knob The following parts are included in the shipment: DESCRIPTION Regulator, pressure reducing Regulator bracket Adaptor, 8VCR x 8T Male nut, 8VCR Gasket, 8VCR Quick connect body Quick connect stem Union, 8VCR male SHC screw, #10-32 x 3/8 Split lock washer, #10 Flat washer, #10 SHC screw, M4 x 12 Flat washer, M4 Nut plate, 60 mm QTY 1 1 1 1 4 1 1 1 2 2 2 2 2 1 PART NO. 103232 123657 103233 103029 102923 103234 103235 103236 103277-Z 103021-Z 103278-Z 101016-Z 100918-Z 123621 molbloc, molbloc-S, molbox, molstic and molstic-s are trademarks, registered and otherwise, of DH Instruments, Inc. [. . . ]