Dwyer ISDP User Manual

Page 13

ArEA

DIA

XDIM

and

YDIM

SUB MENUS

These SUB MENUS become accessible if the instrument is set for flow. When measuring
flow, the area of the duct must be specified. Tables 3 and 4 show the input range vs max-
imum flow and duct size. For a rectangular duct the maximum size is specified in square
feet or meters. For a circular duct the maximum size is specified as the diameter. X, Y and
circular dimensions are entered in feet with 0.01 foot resolution for FLOr = LO and 0.1 foot
resolution for FLOr = HI, or entered in millimeters with 1 millimeter resolution.

ArEA

- Area, select

CIR

for a circular duct or

RECT

for a rectangular duct. If a

circular duct is selected, the

DIA

SUB MENU will be activated. If a rectangular duct is

selected, the

XDIM

and

YDIM

SUB MENUS will be activated.

DIA

- Diameter, enter the diameter of a duct

XDIM

- Enter the “X” dimension of a duct

YDIM

- Enter the “Y” dimension of a duct

d.S

(Display) MAIN MENU

PEAK

- Peak value

rESO

- Resolution

VALy

- Valley value

Pd.S

- Process display

ZERO

- Zero

DAMP

- Dampening level

PEAK

(Peak) SUB MENU

The Peak feature stores the highest pressure reading the instrument has measured

since the last reset or power up. At power up

PEAK

is reset to the present

pressure reading. To manually reset the

PEAK

value, press the ENTER key while in

the

PEAK

SUB MENU.

VALy

(Valley) SUB MENU

The valley feature stores the lowest pressure reading the instrument has measured

since the last reset or power up. At power up

VALy

is reset to the present

pressure reading. To manually reset the

VALy

value, press the ENTER key while in

the

VALy

SUB MENU.

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