Emerson Rosemount 705, Справочное руководство

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High Gain Remote Antenna Option
May 2017
Reference Manual
00809-0200-4705, Rev AB
56
High Gain Remote Antenna Option
C.2 Functional specifications
C.2.1 Output
Wireless HART
®
2.4 GHz DSSs (direct sequence spread spectrum)
Radio Frequency Power Output from Antenna:

High gain remote (WN option) antenna:
Maximum of 40 mW (16 dBm) EIRP (Equivalent Isotropically Radiated Power)

High gain remote antenna (WJ1 option):
Maximum of 40 mW (16 dBm) EIRP 25 ft. of cable.
C.2.2 Coaxial length
25 ft. (7.6 m) with Type N Connections
C.2.3 Coaxial material

Heavy duty, low loss LMR400 cable

Minimum coaxial bend diameter: 1.0 ft. (0.3 m)
C.2.4 Antenna

Remote mount omni directional antenna

Fiberglass and aluminum construction

8 Db Gain WJ1 - 6dBi

Meets MIL-STD-810G (Method 510.5, Procedure I and II)
C.2.5 Physical specifications
Weight: 1.0 lb. (0.4 kg)
C.2.6 RF lightning arrestor
In-line lightning arrestor
Electrical connection: Lightning arrestor MUST be grounded per local electrical codes and regulations.
Mounting bracket

Horizontal or vertical mast accommodation

Supported mast diameter: 1.0 to 2.5-in. (2.5 to 6.4 cm)

Aluminum bracket

Nickel/zinc plated mounting U-bolts
C.2.7 Ratings
NEMA
®
4X, and IP66/67
C.2.8 Vibration
3 g Max vibration