Emerson Mobrey Hydratect 2462, Справочное руководство

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39
Reference Manual
24625020, Rev AA
System Testing
March 2017
System Testing
Section 4 System Testing
4.1 Test summary
Section 4 contains the procedures for testing the two basic configurations of the Hydratect
2462 system: (1) water-normal and (2) steam-normal
Use the procedures to check the operation of the Hydratect 2462 system after installation
completion or any configuration change. In each procedure, checking includes the
detection sensitivities and the latched fault relay facility.
The test equipment required is minimal and depends to some extent on the ancillary
equipment installed in your system. You will need:

A resistor to simulate steam presence:
10 M


A resistor to simulate water presence:
56 k

(low sensitivity) or 120 k

(high sensitivity).

A resistor to simulate electrode contamination:
270

(low sensitivity) or 820

(high sensitivity).

A fault relay reset push-button.
(This is required only when the latched relay option is configured).

A device, such as a lamp or beeper.
(This is to check the operation of the output contacts. The contact ratings are given
in
Appendix A: Specifications and Data ).
Where ancillary equipment is already connected to the output contacts, and may
safely be used, it may be more appropriate to check the contact operation with
that equipment.