4
• Installation, electrical connection, set-up, operation and maintenance of the unit
must be carried out by qualified personnel authorised by the machine operator�
• Protect units and cables against damage�
3 Functions and features
The unit monitors the system pressure in a plant�
3.1 Applications
Type of pressure: relative pressure
Order no.
Measuring range
(in brackets: extended display range)
Permissible
overpressure
Bursting
pressure
bar
PSI
bar
PSI
bar
PSI
PG2409
-1���1 (1�6)
-14�52���14�52 (23�22)
10
145
30
435
PG2450
0���400 (600)
0���5800 (8700)
800
11600 1200 17400
PG2451
0���250 (400)
0���3625 (5800)
600
8700
1000 14500
PG2452
0���100 (160)
0���1449 (2322)
300
4350
700
9400
PG2453
-1���25 (40)
-14�5���362�5 (580�0)
100
1450
350
5070
PG2454
-1���10 (16)
-14�4���145 (232)
50
725
150
2175
PG2455
-1���4 (6�4)
-14�5���58 (92�8)
30
435
100
1450
PG2456
-0�125���2�5 (4)
-1�8���36�25 (58�00)
20
290
50
725
PG2457
-0�05���1 (1�6)
-0�72���14�5 (23�20)
10
145
30
435
mbar
inH2O
bar
inH2O
bar
inH2O
PG2458 -12�5���250 (400)
-5�0��100�4 (160�6)
6
2400
30
12044
PG2489
-5���100 (160)
-2�00���40�16 (64�24)
4
1606
30
12044
The units comply with the Pressure Equipment Directive� They are
designed for group 2 fluids and manufactured in accordance with sound
engineering practice� Use of group 1 fluids on request�
Avoid static and dynamic overpressure exceeding the given overload
pressure by taking appropriate measures�
The indicated bursting pressure must not be exceeded�
Even if the bursting pressure is exceeded only for a short time, the unit
may be destroyed� ATTENTION: risk of injury!
Use in gases at pressures > 25 bar only after contacting the manufacturer
ifm�
