Product
Pressure Gauges with Electrical Contacts (Model M21 – M31 – M41 – M61)
Specifications (20°C) :
Measurement range See table on next page
Accuracy ± 3 %
Gauge working -20…70°C
temperature The gauge may be used on fl uid temperatures up to
200°C providing that the gauge temperature does not
exceed 70°C.
Protection rating IP 65 according NF EN 60529.
Sensing element Two 1.4404 (AISI 316L) stainless steel bellows.
Balance effect by high tensile leaf spring; mechanical
start and end-of-travel stops to withstand full static
pressure.
Connections and parts in contact with process fluid
1.4301 (AISI 304) Stainless steel.
Thread: G 1/2 or 1/2 NPT.
Case and bezel ring 1.4301 (AISI 304) Stainless steel.
bayonet lock type.
Window Transparent polycarbonate domed
with watertight index adjustment knob.
Window gasket Elastomer.
Movement Stainless steel.
Dial Aluminium alloy, rubber zero stop, black graduations
and figures on white background..
Pointer Aluminium alloy, black painted.
Electrical connection Terminal block. M20x1.5 cable gland
Ø 7 a 13 mm cable.
Description
Technical Data :
M21/M31 – Differential pressure
M41 – Relative pressure with strong overpressure
M61 – Pression Absolue
Gauges with bellows Ø 150 mm
For corrosive fluids and atmospheres
Dry contacts (CES)
Electrical part conforms to Low Voltage Directive
DBT 73/23/CE
Based upon the MZ (M21) – MX (M31) – ME (M41) – MA (M61) gauges of which
they share all characteristics, they are fitted with electrical contact blocks allowing
the following control functions:
– single : min and max
– dual : min-max and max-min
