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Installation, Operation, & Maintenance Manual
ES-09374-1
9.1
Installation in Potentially Explosive
WARNING
Atmosphere
The PD200 positioner is intended for installation in potentially explosive atmospheres
and is designed to meet IEC / EN 60079-0, IEC / EN 60079-11 intrinsic safety standards.
CAUTION
Before installing the instrument, it is necessary to pay attention to the parameters of the
entity and ensure that the positioner is installed with an intrinsic safety barrier suitable
for operating with positioners.
DANGER
- Always separate intrinsically safe (SI) circuits from non-intrinsically safe (NSI) circuits.
- Always install the positioner with a suitable intrinsically safe barrier.
- Check the entity parameters of the positioner. See Section 2 - Specifications.
- Protect cables from external impacts.
SAFETY
- Grounding the positioner is of utmost importance and highly recommended.
- Potential risk of electrostatic charge, clean only with damp cloth.
NOTICE
9.1.1
Entity Parameters (Pending)
In intrinsically safe installations, one must pay attention to the entity parameters.
Entity parameters are information of intrinsically safe instruments, field elements and
associated intrinsically safe instruments (Ex i barriers) that allow the instruments to be
interconnected or not.
For all the instruments to be safely interconnected, some conditions must be met.
Positioner Parameters
Ui - Maximum input voltage
Ii - Maximum input current
Pi - Input power
Ci - Maximum Internal Capacitance
Li - Maximum internal inductance
Barrier Parameters
Uo - Max. open circuit voltage
Io - Max. short-circuit current
Po - Maximum output power
Co - Maximum external capacitance
Lo - Maximum external inductance
Um - Maximum voltage at non-Ex terminals
Interconnection Position x Barrier
Ui ≥ Uo
Ii ≥ Io
Pi ≥ Po
Ci + C cable ≤ Lo
Li + L cable ≤ Lo
Intrinsically Safe Entity Parameters:
CN1 4-20ma Input:
Ui=28V, Ii=93mA, Pi=651mW, Ci=6.4nF, Li=0µH
CN7 4-20ma Position Indication:
Ui=28V, Ii=93mA, Pi=651mW, Ci=22nF, Li=0µH
Alarm Switches (Connectors CN4 and CN5):
Ui=28V, Ii=93mA, Pi=651mW, Ci=0nF, Li=0µH
Alarm Switches (Connectors CN4 and CN5):
Ui=28V, Ii=93mA, Pi=651mW, Ci=0nF, Li=0µH
90
Certifications
August 23, 2022
PMS 151
C0 M55 Y100 K0
PMS 109
C3.1 M2 Y91.4 K.05
PMS 186
C1.2 M92 Y92 K0
PMS 335
C100 M0 Y63 K39
PMS 285
C100 M44 Y0 K17
Certifications
8
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