20
Electro-pneumatic positioner TZIDC-220
42/18-82 EN
3.2 Pneumatic connection
3.2.1 Safety instructions
3.2.2 Making the pneumatic connections
All pneumatic piping connections are located on the right-hand side of the positioner.
Threaded bores G 1/4 or 1/4-18 NPT, respectively, are provided. The positioner is
labeled according to the type of thread. The corresponding screwed pipe connections
have to be supplied by the customer. We recommend pipes with the dimension 6 x 1 mm
for the pneumatic piping.
The amount of supply pressure has to be matched to the working pressure necessary for
the actuation. The positioner's operating range is between 1.4 and 6 bar.
!
WARNING
•
Observe the accident prevention rules of the Employers Liability
Insurance Association.
•
Observe the safety instructions for the pneumatic actuator used. The
actuator's high actuating power may cause injuries!
!
NOTICE
•
Take suitable precautions to ensure that even in case of malfunctions
the positioner’s max. admissible operating pressure of 6 bar (90 psi) is
not exceeded. Otherwise, the positioner and/or the actuator may be
damaged.
•
The positioner must be supplied with instrument air exempt from oil,
water and dust according to DIN/ISO 8573-1, Class 3
- Purity: max. particle size 5 µm, max. particle density 5 mg/m
3
- Oil content: max. concentration 1 mg/m
3
- Pressure dew point: maximum value 10 K below operating temp.
3
Before connecting the air pipes blow them out to remove dust,
splinters and other particles.
Pneumatic outputs
Air supply
Fig. 15
Pneumatic connections
Summary of Contents for D400
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