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cut-off valve between flange connector and tube for easy installation and
repair.
There is one nylon protection cap on the pressure port of flush
diaphragm type controllers. Please do not take off the cap to protect
diaphragm if the user does not install.
Please mount controller to pressure port M20X1.5 female, the screw
depth should be less than 20mm (there should be a seal-ring on the type
face). Pressure port G1/2 female's depth should be no less than 15mm.
Please do not wrap tape on pressure port G1/2 male to seal. This would
affect product stability or damage product.
7.2 MDM484C, MDM484ZL, MDM460
The pressure ports for standard MDM484A, MDM484ZL differential
pressure controller are two G1/4 female. Marked with "+" is high (positive)
pressure side; marked with "-" is low (negative) pressure side. The
transmitter should be connected to process tube together with 3 valve
manifolds by pressure leading tube. Pressure leading tube's high
(positive) pressure side connects to pressure port marked "+"; pressure
leading tube's low (negative) pressure side connects to pressure port
marked "-". Please make two pressure port horizontal for right installation
position, and make indicator facts to worker directly.
For normal operation and easy installation, please install 3 valve
14
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