EMA 200 Instruction Manual
6
4 Instrument description
4.1 Functions
The EMA 200 is a battery-operated, digital pressure gauge for measuring
overpressure, vacuum and differential pressure of non-aggressive gases. Operating
range is 200 Pa to 200 kPa.
Because it is robust, easy-to-use and includes an analogue output, this instrument is
especially suitable for maintenance, customer service and record-keeping for heating,
ventilation and air-conditioning units.
At its heart is a pressure measurement capsule with a beryllium bronze membrane
spring, which is displaced by the pressure difference between the two chambers of
the measurement capsule. Measurement range is between 200 Pa and 20 kPa. A
distance measurement system converts this displacement into an electrical signal.
A semiconductor sensor is used for measuring pressures in the area of 200 kPa.
4.2 Instrument controls
The instrument control panel consists of a keypad with four buttons.
pressure display
flow-rate / temperature display
on/off
select key: pressure, min.,
max., hold
select key: pressure units
zero-point calibration /
configuration
