TSI Instruments HM685, Руководство пользователя

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2-8 Hydronic Manometer Model HM685
Attaching the Hoses to the Test Points
1. As indicated previously, use an appropriate fitting to connect the open
end of the High pressure (red) hose to the test point with the higher line
pressure.
2. Using an appropriate fitting, connect the open end of the Low pressure
(blue) hose to the test point with the lower line pressure.
Note: If the hoses are connected in the inverse orientation (i.e., High
pressure (red) hose to the lower line pressure), the displayed High-
side gauge pressure (
High P ) will be less than the Low-side gauge
pressure ( Low P ), and the Differential pressure ( dP ) and resulting
calculated flow ( Flow ) will be negative.
P e r f o r m i n g P r e s s u r e M e a s u r e m e n t s
The HM685 Hydronic Manometer allows for simultaneous measurement
and display of the High-side gauge and Differential pressure. The
calculated Low-side gauge pressure is also displayed. While in the
Pressure Measurement screen, the manometer makes and displays
continuous pressure measurements, and allows for data storage to the
memory.
Accessing the Pressure Measurement Screen
The Pressure Measurement screen is accessed by pressing the PRESS
key from the Flow Measurement screen, or by pressing the ESC key from
any of the primary menus (Main Menu, Data Logging Menu, and
Calculations Menu) when that menu was accessed from the Pressure
Measurement screen.
Pressure Measurement Screen
High Side
Pressure
Temperature
Low Side
Pressure
Differential
Pressure
Battery Status
or Power
Input Type
Current
Test ID
*Shown with two optional accessory temperature probes attached.