Rockwell Automation Publication 836P-IN002B-EN-P - December 2017
3
Non-display Solid-state Pressure Transmitter
Dimensions [mm (in.)]
1/4 in. NPT Female
1/4 in. NPT Male
Process Connection
Commissioning
Making the Mechanical Connection
• While mounting, make sure that the sealing faces at the instrument and the measuring point are clean and undamaged.
• Only screw or unscrew the instrument via the spanner flats and to the prescribed torque with an appropriate tool. The correct torque
depends on the dimensions of the process connection and the gasket used (form/material). When screwing or unscrewing the pressure
transmitter, do not use the housing as contact surface.
• Be careful not to cross-thread.
• Max torque is 50 N•m (442.54 lb•in).
Mating Cables
Process Connection
889D-F4AC-2 (M12x1 connector)
Measuring Cell
Piezoresistive measuring cell and metallic measuring diaphragm
889D-R4AC-2 (M12x1 right angle connector)
Application
Measurement and monitoring of absolute and gauge pressures
Process connection
Thread
− 1/4 NPT female
− 1/4 NPT male
− G1/4 BSPP male
G 1/2B
SAE 7/16-20 UNF O-ring BOSS
ATTENTION:
Before commissioning, the pressure transmitter must be subjected to a visual inspection.
• Fluid leakage is indicative of damage.
• Only use the pressure transmitter if it is in perfect condition concerning safety.
33
(1.3) dia.
25 (0.98)
± 0.1 dia.
1/4 in.
NPT
27
(1.06)
20
(0.79)
14
(0.55)
M12x1
29
(1.14) dia.
29 (1.14) dia.
M12 x 1
1/4 in. NPT
13 (0.51)
27
(1.06)
12
(0.47)
ca./approx.
33 (1.3)
21.3
(0.84)
13
(0.51)
27
(1.06)
29.5 (1.16) dia.
G1/4B
EN837
2
(0.08)
Wiring Diagrams
4…20 mA
(+)
(-)
1
4
2
3
4…20 mA
20
(0.79)
12
(0.47)
7/16-20 UNF
SAE J514
O-ring BOSS
G 1/2 B
EN837
3
(0.12)
G 1/2 B EN837
G 1/4 BSPP
7/16-20 UNF