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1.2 Device-specific safety instructions
1.2.1 General
!
WARNING
!
NOTICE
1.2.2 Pneumatic safety
!
WARNING
!
NOTICE
41/18-79 EN
•
Any user-made changes or manipulations of the device are prohibited!
Only the manufacturer or an expert for explosion protection are autho-
rized to modify the device.
•
Before re-using a TZIDC positioner that has already been used in
another installation place always reset the device to the factory setting.
Never start the autoadjustment function before having restored the fac-
tory setting! Otherwise, hazardous situations may occur due to
improper settings.
•
Do not use the internal communication interface (LKS) on the mother-
board when the TZIDC positioner is installed and used in the hazard-
ous area.
•
The (optional) safety shutdown module must be subject to a functional
test every two years at the latest. Follow the instructions in chapter
3.5.1.
•
Protection class IP 65 / NEMA 4 X is achieved only when the splash
guard cap is in place. Do not use the positioner without the cap.
•
Observe the accident prevention rules of the Employers Liability Insur-
ance Association.
•
Observe the safety instructions for the pneumatic actuator used. The
actuator's high actuating power may cause injuries !
•
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
- Oil content: max. concentration 1 mg/m
- Pressure dew point: maximum value 10 K below operating temp.
Before connecting the air pipes blow them out to remove dust, splinters
and other particles.
Electro-pneumatic positioner TZIDC
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3
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