Swema SwemaMan 7 Operating Instructions Manual

SwemaMan 7

Operating instructions

vers 1.13 MB_CW20180425

WARNING! Before start measuring please read chapter ”6. Set­tings (Set)”. At delivery k2-factor is turned on.

Contents:
SWEMA AB
Pepparv. 27
123 56 FARSTA
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
Web page: www.swema.com

1. Introduction......................... 1

2. Technical data....................... 2

3. Start of instrument............... 2

4. Unit..................................... 3

5. Mode................................... 5

6. Settings (Set)....................... 9

7. Notebook............................ 10

1. Introduction

SwemaMan 7 is a micro manometer for differential pressure, air ow
and air velocity. Differential pressure is measured in Pa, airow in l/s,

m3/h or CFM and air velocity in m/s or fpm. It’s possible to set baro­metric pressure and temperature to compensate for correct air density.

Measure airow either with k-factor or with area in duct. The area is

entered into the instrument directly, as diameter or as height x width.
SwemaMan 7 can calculate minimum, maximum and average value.
Saved measurements are easily transferred to a PC.

SwemaMan 7 has display light, usb connector and are delivered with
two easily replaceable AA batteries.

Differential pressure

Key Up

Max

Key Left
Average

Key Down

Min

Function keys

Enter

Key Right
Zeroing

ON / OFF
Display light

USB connector

Batteries

1.

2. Technical data

Differential pressure: -1000... 9999 Pa
Air velocity: 2... 130 m/s

Measurement uncertainty at 23°C:
±1% read value, min ±0.5Pa

95% coverage probability in non condensing, non moist air, <80%RH, non aggressive
gases.

Ambient temperature: 0... 50°C
Memory: 300 Notes
PC-communication: USB
Battery: 2x 1,5V AA (Standard or rechargeable)
Battery operating time: Up to 150h (24h with display light turned
on)
Size: 180x82X36mm
Weight: 390g
IP50 (dust)

2. Start of instrument

When starting the instrument (ON/OFF-button), the display shows

the battery voltage, rmware version and calibration date. After a

couple of seconds it’s in measuring mode. SwemaMan 7 will start in
the same measuring mode it was set to when turned off.

Display light: The display light can be turned On and Off by pressing
the ON/OFF-button (when instrument is turned on).

Turn Off: To turn off the instrument press and hold down the ON/
OFF-button for about 2 seconds until the text ”OFF” is shown on the

display.

Zeroing: To reset the pressure sensor to zero
press Key Right. When the pressure sensor
is zeroing the text ”Zero” and the digit ”0” will
be shown on the display (see picture to the
right).
Note! Disconnect pressure from the pressure
connectors before zeroing.

2.

Measurement: When in measuring mode press
Enter to store a value in the volatile memory.

The number of measuring points stored in the
volatile memory is shown on the display directly
under the measured values, ”2P” (see picture to
the right) means the two measuring points has
been stored. When Enter is pressed an average
of the measuring points is shown for a short
while before the measured values is shown in
real time again.

Average, Max & Min: To check the average, max or min value of
the stored measurement points press Key Left (Average), Key Up
(Max) or Key Down (Min), as long as the button is hold down the
corresponding value will be shown on the display.

Save a measurement: After a measuring point has been stored it’s
possible to save the measurement into SwemaMan 7:s Notebook by
pressing Save. The display will show which note number the meas­urement is saved as (example n3 = note 3). To instead erase the
measurement from the volatile memory press Clear.

4. Unit

Press Unit to alternate between the different units. The units Swema­Man 7 can display are:

• Pa

• m/s & Pa (fpm & Pa if US-unit is selected)

• l/s & Pa (cfm & Pa if US-unit is selected)

• m3/h & Pa (cfm & Pa if US-unit is selected)

• hPa & °C (inHg & °F if US-unit is selected)

Differential Pressure (Pa): Press Unit until
SwemaMan 7 shows the unit Pa. A measurement
with average, max and min and also saving of
the measurement is possible. If pressure is big­ger than 10.000 Pa or lower than -1000 Pa (out

of range) the digit will ash.

Air Velocity (m/s & Pa): It’s possible to meas-
ure air velocity with SwemaMan 7 by connecting
a pito static tube. Press UNIT until SwemaMan
7 shows the units m/s and Pa. A measurement
with average, max and min and also saving of
the measurement is possible. Air velocity lower
than 0.7 m/s will be shown as zero.

3.

Differential pressure meas­urement

Air velocity measurement