MP_Test_pressure_gauge_Riels0 pages

MP

TEST PRESSURE
GAUGES

PRESSURE
CONTROLS

Test pressure gauges Series MP
They are used to calibrate and test industrial gauges or for precision measurements in the
laboratory; they can be used for both liquid and gaseous fluids, except for those having a
high viscosity or prone to crystallisation. Each gauges is supplied with a calibration certificate
issued by our lab, indicatin the global error of the gauge and the references to the primary
gauge use for the calibration.

Tutti i dati ed i contenuti di questa scheda sono di proprietà esclusiva di Riels Instruments

Mounting

MP1 Direct, bottom connection.
MP2 Wall with 3 holes flange; bottom connection.
MP3 Direct, back connection.

MP4 Flush with 3 holes flange; back connection.
MP5 Flush with U clamp, back connection.

Design features
DIAL SIZE (DS): tt
ACCURACY: tt
CASE AND RING: tt
PRESSURE CONNECTION: t
t
t
t
ELASTIC ELEMENT: t t
t
t
t
MOVEMENT: tt
POINTER: t t
t
WINDOW: ttt
WINDOW GASKET: tt
DIAL: t
t
t

mm 100 – 150 – 200 – 250
Class 0,25. (Class 0,6 Ø 100 and ranges from 60 to 400 mbar) according to EN837-1.
AISI 304 stainless steel with bayonet clutch; nitrile rubber NBR safety plug.
AISI 316; thread G1/2” A UNI ISO 228/1
• from 60 to 400 mbar: Phosphorous bronze bellow - only for gaseous fluids
• form 0,6 to 1000 bar: CuBe seamless tube
• from 0,6 to 1000 bar - Class 0,6: AISI 316L st. st. seamless tube
hight precision clockwork alloy, pinion and bolt of the sector mounted on bushes in semi precious stone.
adjustable in black anodized aluminium; knife execution.
glass 3 mm thick.
nitrile rubber NBR.
white aluminium; black scale and graduation with anti-parallax mirror ring.

Ranges
Range mbar

Nr of division

Scale Interval
mbar

0 / 60*
0 / 100*
0 / 160*
0 / 250*
0 / 400*
0 / 600
0 / 1000

300
200
320
250
200
300
200

0,2
0,5
0,5
1
2
2
5

Nr of division

Scale Interval
bar

Range bar

Nr of division

Scale Interval
bar

-1 / 0
0 / 0,6
0/1
0 / 1,6
0 / 2,5
0/4
0/6
0 / 10
0 / 16

* Only DS 150

Range bar

200
300
200
320
250
200
300
200
320

0,005
0,002
0,005
0,005
0,01
0,02
0,02
0,05
0,05

0 / 25
0 / 40
0 / 60
0 / 100
0 / 160
0 / 250
0 / 400
0 / 600
0 / 1000

250
200
300
200
320
250
200
300
200

0,1
0,2
0,2
0,5
0,5
1
2
2
5

Equivalent units and ranges for pressure or vacuum

Thecnical characteristics
OPERATING PRESSURE: tt
OPERATING TEMPERATURE: t
t
OVERPRESSURE: ttt
THERMAL DRIFT: t
t
t
DEGREE OF PROTECTION: tt

Constant: full scale. tt
Changeable: 90% full scale.
Ambient: 10 ÷ 30 °C t t
Process fluid: max 60 °C
Up to 60 bar: 25% F.S.V. tt
From 100 bar: 15% F.S.V.
max ± 0.05% of span every 10 °C of deviation from the reference temperature of 20 °C.
IP55 according to EN 60529

Riels Instruments Srl

+39 049 8961771

+39 049 717368 www.riels.it info@riels.it