Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613950166376 | ||
| +8613950166376 | |||
| 13950166376 |
Technical Specifications
| Parameter | Details |
|---|---|
| Product | Foxboro FBM214b HART Communication Input Module |
| Part Number | RH927AH |
| Product Type | HART Communication Input Module |
| Series | Foxboro 200 Series FBM |
| Input Channels | 8 individually isolated channels |
| Input Signal | 4–20 mA analog input |
| HART Communication | HART digital FSK communication superimposed on the 4–20 mA signal |
| HART Versions | HART Version 5, 6, and 7 compliant devices |
| HART Communication Speed | 1200 baud, asynchronous, half-duplex |
| HART Message Rate | Up to 2 messages per second |
| Channel Isolation | Each channel is galvanically isolated from other channels, ground, and module logic |
| Sense Resistor | 61.5 Ω nominal |
| Total Input Resistance | 280 Ω nominal |
| Accuracy | ±0.03% of full scale, including nonlinearity |
| Resolution | 15 bits |
| Temperature Coefficient | 50 ppm/°C |
| Update Rate | 100 ms |
| Integration Time | 500 ms |
| Common-Mode Rejection | >100 dB at 50/60 Hz |
| Normal-Mode Rejection | >35 dB at 50/60 Hz |
| Field Device Distance | Up to 3,030 m (10,000 ft), subject to loop conditions |
| Internal Loop Supply | 18.5 V DC minimum at 20.5 mA |
| Mounting | Modular baseplate; compatible with DIN-rail or rack mounting arrangements |
| Termination | DIN-rail-mounted termination assembly |
| Operating Temperature | -20 to +60°C (-4 to +140°F) |
| Storage Temperature | -40 to +70°C (-40 to +158°F) |
| Relative Humidity | 5–95%, non-condensing |
| Module Dimensions | 102 H × 45 W × 104 D mm; 114 mm high including mounting lugs |
| Module Weight | Approx. 284 g |
| Termination Assembly Weight | Approx. 181 g |
| Application | Process measurement, HART transmitter integration, monitoring and device diagnostics |
FAQ
FAQ
Q1: What is the Foxboro FBM214b RH927AH used for?
A: The FBM214b RH927AH is used to interface 4–20 mA field transmitters with a Foxboro DCS while also providing two-way HART digital communication with compatible field devices.
Q2: How many input channels does the FBM214b provide?
A: It provides 8 individually isolated input channels. Each channel can handle a standard 4–20 mA signal or a 4–20 mA signal with HART communication.
Q3: Does the FBM214b support HART communication?
A: Yes. The module has a dedicated FSK modem for each input channel and supports HART Version 5, 6, and 7 compliant instruments.
Q4: Can standard 4–20 mA transmitters be connected to the FBM214b?
A: Yes. The module supports both conventional 4–20 mA instruments and HART-enabled transmitters, so the eight channels can be used in different combinations.
Q5: Are the eight input channels electrically isolated?
A: Yes. Each input channel is galvanically isolated from the other channels, ground, and the module logic. This helps reduce interference between field circuits.
Q6: What is the accuracy of the FBM214b analog input?
A: The specified accuracy is ±0.03% of full scale, including nonlinearity. The module uses sigma-delta conversion for the analog input channels.
Q7: What are the dimensions and weight of the FBM214b?
A: The module measures approximately 102 mm high × 45 mm wide × 104 mm deep, with a height of approximately 114 mm including the mounting lugs. The module weighs approximately 284 g.
Q8: What type of mounting system is used with the RH927AH?
A: The FBM214b mounts on a modular baseplate. The RH927AH baseplate can be installed on a DIN rail, either horizontally or vertically, or mounted horizontally in a 19-inch rack with the appropriate mounting kit.
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Packing & Delivery
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