M2000
Differential pressure measuring
instrument with analogue scale
MAGNEHELIC
The MAGNEHELIC differential pressure
gauges in the 2000 series are particularly suitable for measuring positive, negative (vacuum)
or differential pressures within a range of
60 Pa up to 30 kPa, and within a range from
30 Pa up to 10 kPa for mid-scale zero point
indication. Except for the gauges with ranges
0–60 Pa and 0–100 Pa which must always be
mounted in vertical position, other gauges can
be mounted in any position from vertical to horizontal. However, they have to be zero-gauged
after installation.
The core of the M2000 differential pressure gauge is a magnetic coupling between
diaphragm and pointer. A diaphragm with an
integrated O-ring separates the two pressure
compartments. The motion of the diaphragm is
transmitted by means of a rigid connection to
a leaf spring especially adapted to the respective measuring range. Mounted on the flexible
end of the spring is a small permanent magnet which deflects the pointer fixed on a ferromagnetic helix shaft on a sapphire bearing.
The gradient of the helix is chosen in such way
that a linear reading in proportion to the pressure differential is ensured. On both scale ends
there are pointer stops of moulded rubber to
protect the pointer and the measuring mechanism, as the gauges can be exposed to large
over-pressures despite their small measuring
Technical data
Media compatibility
air or non-corrosive gases
Measuring ranges
refer to data table
Measuring accuracy
±4.0 % at a range of 0–60 Pa
±3.0 % up to 0–100 Pa
±2.0 % from 0–100 Pa or higher (of full scale)
Max. permissible pressure
100 kPa
Max. permissible temperature
–20 to + 65 °C
Pressure connection
two pressure connections with 1/8” NPT female thread,
from behind or sidewards (left side), for plastic tubing
4 x 6/8 mm
Weight
~ 0.5 kg
Standard accessories
2 hose nipples
2 blind nipples
3 clamp bows with bolts for panel assembly
(assembly kit for flush mounting)
* other measuring/indicating ranges on request
05/09
Standard types
Type
M 2000– 60 Pa
M 2000– 100 Pa
M 2000– 200 Pa
M 2000– 300 Pa
M 2000– 500 Pa
M 2000– 750 Pa
M 2000– 1 kPa
M 2000–1.5 kPa
M 2000– 2 kPa
M 2000– 3 kPa
M 2000– 5 kPa
M 2000– 10 kPa
M 2000– 15 kPa
M 2000– 20 kPa
M 2000– 30 kPa
ranges. The design resists repeated pressure
shocks or fast pressure changes.
Main fields of use are: monitoring fan and
blower pressures, measuring filter resistance,
measuring pressure drops across orifice plates,
monitoring liquid levels with bubbler systems,
over-pressure monitoring in cleanrooms and
air halls, monitoring over-pressures and negative pressures in air-conditioned rooms of laboratories and research institutes, furnace draft
in burners and furnaces, air velocity measurements by Pitot tubes etc. Thus, the Magnehelic
pressure gauges are the industry standard in
heating, air-conditioning and climate (HVAC)
systems.
Measuring range*
0– 60 Pa
0–100 Pa
0–200 Pa
0–300 Pa
0–500 Pa
0–750 Pa
0– 1kPa
0– 1.5kPa
0– 2kPa
0– 3kPa
0– 5kPa
0– 10kPa
0– 15kPa
0– 20kPa
0– 30kPa
Measuring instrument with zero center ranges
Type
Measuring range*
M 2300– 60 Pa
30–0– 30 Pa
M 2300–100 Pa
50–0– 50 Pa
M 2300–200 Pa
100–0–100 Pa
M 2300–250 Pa
125–0–125 Pa
M 2300–500 Pa
250–0–250 Pa
M 2300– 1 kPa
0.5–0– 0.5 kPa
M 2300– 3 kPa
1.5–0– 1.5 kPa
M 2300– 5 kPa
2.5–0– 2.5 kPa
M 2300– 10 kPa
5.0–0– 5.0 kPa
Note:
Depending on the field of
application, the differential
pressure gauges can be
supplied with special (optional) scales such as scale
reading in mbar, mm w.c.,
red-green to highlight and
emphasize critical pressures,
m/s, m3/h, 0–100 % and
other units of measurement.
Also available are factory
and calibration certificates
produced by DKD-approved
and certified testing instruments in compliance with
DIN 10204.
Briem
Steuerungstechnik GmbH
Lauterstraße 23
D-72622 Nürtingen
Phone +49 (0)70 22-60 92-0
Fax +49 (0)70 22-60 92-60
[email protected]
www.briem.de
M2000