Section 5
5.1
TECHNICAL SPECIFICATIONS
General
Communication
Digital only. PROFIBUS-PA, 31.25 Kbits/s voltage mode, according to IEC 61158-2.
Current consumption quiescent
17.5 mA from Profibus-PA network.
Turn-on Time
Approximately 10 seconds.
Update Time
Approximately 0.5 second.
Humidity Limits
0 to 100% RH.
Output Impedance
Non-intrinsic safety from 7.8 kHz -
39 kHz should be greater or equal to 3 kΩ. Intrinsic
safety output impedance (assuming an IS barrier in the power supply) from 7.8 kHz –
39 kHz should b
e greater or equal to 400 Ω.
Function Blocks
2 Discrete Input Function Blocks (DIs) and 2 Discrete Output Function Blocks (DOs).
Indication
Optional 4½ digit LCD indicator.
Temperature Limits
Operation:
-40 to 85ºC (-40 to 185 ºF).
Storage:
-40 to 120ºC (-40 to 250 ºF).
Display:
-10 to 60ºC ( 14 to 140ºF) operation;
-40 to 85ºC (-40 to 185 ºF) without damage.
Vibration Effect
Meets SAMA PMC 31.1.
Electro-Magnetic Interference Effect
Designed to comply with IEC 801.
Hardware
Physical: according to IEC 61158-2 and conformity with the FISCO model.
Electrical Connection
1/2-14 NPT, PG 13.5 or M20 x 1.5.
Material of Construction
Injected low copper aluminum with polyester painting or 316 Stainless Steel housing,
with Buna N O-rings on cover (NEMA 4X, IP67).
Mounting
With an optional bracket that can be installed on a 2" pipe or fixed on a wall or panel.
Weight
Without display and mounting bracket: 0.80 kg. Add for
digital display: 0.13 kg.
Add for mounting bracket: 0.60 kg.
FRI303 Output Relays
Description - Outputs
The outputs are designed with Solid State relays that are able to drive incandescence lamps,
solenoids and other DC and AC loads.
When the output relays are N.C., if via function block is assigned a state on to the outputs, it means
that the loads will be switched off.
When the output relays are N.O., if via function block is assigned a state on to the outputs, it means
that the loads will be switched on.
Technical specifications for Normally Closed relays
Architecture
Number of Outputs: 2.
Switching Voltage
350 Vpeak.
Switching Current: AC mode
100 mA.
Switching Current: DC mode
165 mA.
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