FML621 Spare Parts List Overview
The FML621 series density controller is widely used in industrial process measurement. This article summarizes its commonly used spare part ordering codes, categorized by functional module, to facilitate quick identification and replacement by engineering technicians and procurement personnel. All ordering codes are subject to original manufacturer specifications; please verify the device model and interface type when selecting.
FML621X Series Spare Parts
The FML621X series comprises the core spare parts for the FML621 main unit, divided into multiple groups by number. The table below lists the ordering codes and specification descriptions for each group.
| Nr | Ordering Code | Specification Description |
|---|---|---|
| 1 | FML621X-HA | Spare part for FML621 FML621X- |
| 1 | FML621X-HB | Spare part for FML621 FML621X- |
| 2 | FML621X-HC | Spare part for FML621 FML621X- |
| 3 | FML621X-BA | Spare part for FML621 FML621X- |
| 4 | FML621X-NA | Spare part for FML621 FML621X- |
| 4 | FML621X-NB | Spare part for FML621 FML621X- |
| 4 | FML621X-NC | Spare part for FML621 FML621X- |
| 4 | FML621X-ND | Spare part for FML621 FML621X- |
| 5 | FML621X-DA | Spare part for FML621 FML621X- |
| 5 | FML621X-DB | Spare part for FML621 FML621X- |
| 5 | FML621X-DC | Spare part for FML621 FML621X- |
| 5 | FML621X-DE | Spare part for FML621 FML621X- |
| 5 | FML621X-DF | Spare part for FML621 FML621X- |
| 5 | FML621X-DG | Spare part for FML621 FML621X- |
FML621A Density Controller Accessories
The FML621A series comprises dedicated accessories for the density controller, including communication, temperature, and digital modules. The following are commonly used accessory ordering codes.
| Nr | Ordering Code | Specification Description |
|---|---|---|
| 6 | FML621A-CA | Density controller accessory FML621A |
| 6 | FML621A-CB | Density controller accessory FML621A |
| 6 | FML621A-TA | Density controller accessory FML621A |
| 6 | FML621A-TB | Density controller accessory FML621A |
| 6 | FML621A-UA | Density controller accessory FML621A |
| 6 | FML621A-UB | Density controller accessory FML621A |
| 6 | FML621A-DA | Density controller accessory FML621A |
| 6 | FML621A-DB | Density controller accessory FML621A |
| — | FML621A-AA | Density controller accessory FML621A |
Terminal Blocks and Connectors
Terminal blocks and connectors are among the most frequently replaced components in FML621 system maintenance. The table below lists specifications and interface types by ordering code for easy cross-reference during selection.
Terminal Blocks
| Ordering Code | Specification Description |
|---|---|
| 51000780 | Supply terminal 4 pole |
| 51004062 | Relay terminal/loop power |
| 51004063 | Analogue terminal 1 (PFM/pulse/analogue/loop power) |
| 51004064 | Analogue terminal 2 (PFM/pulse/analogue/loop power) |
| 51004065 | Terminal RS485 |
| 51004066 | Output terminal (analogue/pulse) |
| 51004907 | Pt100/Pt500/Pt1000 |
| 51004908 | Pt100/Pt500/Pt1000 |
| 51004909 | PFM, pulse, loop power |
| 51004910 | PFM, pulse, loop power |
| 51004911 | Terminal RMx/FML621 dig./open collector |
| 51004912 | Terminal plug-in RMx/FML621 relay |
| 51005953 | PFM, impulse, loop power |
| 51005954 | Terminal plug-in 4pol. SMSTB2,5 82/81/10/ |
| 51005957 | Terminal plug-in 4pol. SMSTB2,5 82/81/10/ |
| 51005958 | Pt100/Pt500/Pt1000 |
| 51005959 | PFM, impulse, loop power |
| 51005960 | Pt100/Pt500/Pt1000 |
| 71005487 | gray |
| 71005489 | blue |
| 71005491 | gray |
| 71005492 | blue |
Connectors
| Ordering Code | Specification Description |
|---|---|
| 51010519 | Connector 4pin RMM621 digital output III |
| 51010520 | Connector |
| 51010521 | Connector |
| 51010522 | Connector 4p RMM/FML621 dig.input II grey |
| 51010523 | Connector 4p RMM/FML621 dig.input II blue |
| 51010525 | Connector 4pin RMM621 digital output II |
Other Accessories and Spare Parts
In addition to the above modules, the FML621 system also involves mounting panel accessories, flat cables, and CPU mainboards. The relevant ordering codes are listed below.
- 71402350: Mounting panel accessory, suitable for RMA42x/RMx621/RTA421/RN221N/TMT12x.
- 51006804: Flat cable RMx621.
- 71028983: Flat flexible cable display Ex RMx621.
- FML621C-: CPU mainboard, including CPU board FML621C-, available in A/B/C/D/E/F/G/AA/AB versions.
- FML621S-: S-DAT module FML621S-, available in 1/2/A versions.
- RXU10-: Data manager accessory RXU10, available in A/E versions.
- DIENST-: Service-type spare parts.
- RMS621A-P1 / RMS621A-P2: RMS621A accessories.
Selection and Procurement Recommendations
When purchasing FML621 spare parts, it is recommended to confirm the model according to the following steps to avoid misordering.
- Verify the main unit model and serial number to confirm the applicable series (FML621X / FML621A / FML621C / FML621S).
- Select terminal blocks or connectors according to the interface type, noting signal differences such as PFM, pulse, analogue, and loop power.
- For temperature inputs, distinguish terminals corresponding to Pt100/Pt500/Pt1000.
- For Ex explosion-proof applications, use explosion-proof certified cables such as 71028983.
- For the CPU mainboard and S-DAT module, confirm the version suffix to ensure compatibility with the existing firmware.
The above spare parts list can serve as a quick reference for routine maintenance and procurement. For a complete selection manual, please refer to the original manufacturer's catalog to verify the latest ordering information.