Foxboro|RH927AH |Analog Input Module
Description
The RH927AH is an Analog Input Module in the Foxboro™ DCS system, designed to interface with a variety of analog input signals. It provides eight galvanically isolated input channels for processing 4-20 mA, 0-20 mA, and 0-10 V signals. The module supports single-ended and differential inputs and is suitable for use in harsh environments (Class G3), ensuring reliable performance in demanding industrial applications.
Features
- Eight Galvanically Isolated Input Channels: Supports 4-20 mA, 0-20 mA, and 0-10 V inputs.
- Configurable Input Types: Each channel can be individually configured for different signal types.
- High Accuracy: Achieved using sigma-delta data conversion techniques.
- Rugged Design: Suitable for Class G3 (harsh) environments, per ISA Standard S71.04.
- Visual Indicators: LEDs on the front of the module provide status indications.
- Fieldbus Communication: Interfaces with a 2 Mbps redundant module Fieldbus, accepting communication from either path (A or B).
- Modular Baseplate Mounting: Mounts on a standard modular baseplate, which can accommodate up to eight FBMs.
- Fail-Safe Action: Configurable options include Hold/Fallback, Analog Input Fail-Safe Fallback Data, and Fieldbus Fail-Safe Enable.
- Hot Swappable: Modules can be replaced without disrupting field input signals or removing field device termination cabling, power, or communications cabling.
Technical Specifications
-
Input Types:
- 4-20 mA, 0-20 mA, 0-10 V.
-
Accuracy:
- ±0.05% of span for 4-20 mA, 0-20 mA, and 0-10 V inputs.
- Temperature Coefficient: ±50 ppm/°C.
- Common Mode Rejection: >125 dB at 50 or 60 Hz.
- Normal Mode Rejection: >95 dB at 50 or 60 Hz.
- Input Signal A/D Conversion: Independent sigma-delta conversion technique.
- Integration Period: Software configurable.
-
Power Supply:
- Input voltage: 24 V dc nominal (range: 18 to 32 V dc).
- Power consumption: 1.5 W max per module.
-
Operating Temperature:
- Module: -20 to +70°C (-4 to +158°F).
- Termination Assembly: -20 to +70°C (-4 to +158°F).
- Storage Temperature: -40 to +70°C (-40 to +158°F).
- Relative Humidity: 5 to 95% (noncondensing).
-
Altitude:
- Operating: -300 to +3,000 m (-1,000 to +10,000 ft).
- Storage: -300 to +12,000 m (-1,000 to +40,000 ft).
- Vibration Resistance: 7.5 m/s² (0.75 g) from 5 to 500 Hz.
- Contamination: Suitable for Class G3 (harsh) environments, based on exposure testing according to EIA Standard 364-65, Class III.
-
Weight:
- Module: 284 g (10 oz) approximate.
- Termination Assembly (Compression): 181 g (0.40 lb) approximate.
- Termination Assembly (Ring Lug): 249 g (0.55 lb) approximate.
-
Dimensions:
- Height: 102 mm (4 in), 114 mm (4.5 in) including mounting lugs.
- Width: 45 mm (1.75 in).
- Depth: 104 mm (4.11 in).
-
Termination Cables:
- Cable Lengths: Up to 30 m (98 ft).
- Materials: Polyurethane or Low Smoke Zero Halogen (LSZH).
- Connection: 25-pin male D-subminiature.
-
Field Termination Connections:
- Compression: Accepted wiring sizes:
- Solid/Stranded/AWG: 0.2 to 4 mm²/0.2 to 2.5 mm²/24 to 12 AWG.
- Stranded with Ferrules: 0.2 to 2.5 mm² with or without plastic collar.
- Compression: Accepted wiring sizes:
Foxboro|RH927AH |Analog Input Module
Current product
Current
Vendor:
Foxboro
Foxboro|RH927AH |Analog Input Module
Regular price
$95.00
Sale price
$95.00
Regular price
$300.00
Options
Descriptions
Description
The RH927AH is an Analog Input Module in the Foxboro™ DCS system, designed to interface with a variety of analog input signals. It provides eight galvanically isolated input channels for processing 4-20 mA, 0-20 mA, and 0-10 V signals. The module supports single-ended and differential inputs and is suitable for use in harsh environments (Class G3), ensuring reliable performance in demanding industrial applications.
Features
- Eight Galvanically Isolated Input Channels: Supports 4-20 mA, 0-20 mA, and 0-10 V inputs.
- Configurable Input Types: Each channel can be individually configured for different signal types.
- High Accuracy: Achieved using sigma-delta data conversion techniques.
- Rugged Design: Suitable for Class G3 (harsh) environments, per ISA Standard S71.04.
- Visual Indicators: LEDs on the front of the module provide status indications.
- Fieldbus Communication: Interfaces with a 2 Mbps redundant module Fieldbus, accepting communication from either path (A or B).
- Modular Baseplate Mounting: Mounts on a standard modular baseplate, which can accommodate up to eight FBMs.
- Fail-Safe Action: Configurable options include Hold/Fallback, Analog Input Fail-Safe Fallback Data, and Fieldbus Fail-Safe Enable.
- Hot Swappable: Modules can be replaced without disrupting field input signals or removing field device termination cabling, power, or communications cabling.
Technical Specifications
-
Input Types:
- 4-20 mA, 0-20 mA, 0-10 V.
-
Accuracy:
- ±0.05% of span for 4-20 mA, 0-20 mA, and 0-10 V inputs.
- Temperature Coefficient: ±50 ppm/°C.
- Common Mode Rejection: >125 dB at 50 or 60 Hz.
- Normal Mode Rejection: >95 dB at 50 or 60 Hz.
- Input Signal A/D Conversion: Independent sigma-delta conversion technique.
- Integration Period: Software configurable.
-
Power Supply:
- Input voltage: 24 V dc nominal (range: 18 to 32 V dc).
- Power consumption: 1.5 W max per module.
-
Operating Temperature:
- Module: -20 to +70°C (-4 to +158°F).
- Termination Assembly: -20 to +70°C (-4 to +158°F).
- Storage Temperature: -40 to +70°C (-40 to +158°F).
- Relative Humidity: 5 to 95% (noncondensing).
-
Altitude:
- Operating: -300 to +3,000 m (-1,000 to +10,000 ft).
- Storage: -300 to +12,000 m (-1,000 to +40,000 ft).
- Vibration Resistance: 7.5 m/s² (0.75 g) from 5 to 500 Hz.
- Contamination: Suitable for Class G3 (harsh) environments, based on exposure testing according to EIA Standard 364-65, Class III.
-
Weight:
- Module: 284 g (10 oz) approximate.
- Termination Assembly (Compression): 181 g (0.40 lb) approximate.
- Termination Assembly (Ring Lug): 249 g (0.55 lb) approximate.
-
Dimensions:
- Height: 102 mm (4 in), 114 mm (4.5 in) including mounting lugs.
- Width: 45 mm (1.75 in).
- Depth: 104 mm (4.11 in).
-
Termination Cables:
- Cable Lengths: Up to 30 m (98 ft).
- Materials: Polyurethane or Low Smoke Zero Halogen (LSZH).
- Connection: 25-pin male D-subminiature.
-
Field Termination Connections:
- Compression: Accepted wiring sizes:
- Solid/Stranded/AWG: 0.2 to 4 mm²/0.2 to 2.5 mm²/24 to 12 AWG.
- Stranded with Ferrules: 0.2 to 2.5 mm² with or without plastic collar.
- Compression: Accepted wiring sizes:
