The Monitran MTN/M2285 is a general-purpose, top-input vibration velocity transducer with a 4-20 mA two-wire output proportional to the RMS velocity (mm/s), for direct connection to PLCs, DCSs, and other controllers. It is ATEX and IECEx Group I intrinsically safe (Ex ia I Ma) certified; the datasheets cite intrinsically safe data collectors, oil and mining, and fans, compressors, and pumps as applications.
Stainless steel body with electronics in a Faraday cage isolated from the body, sealed to IP67, and integrated ETFE cable with stainless steel braid (5 m standard), with ¼" UNF female mounting or Q/F female quick-release base. Guemisa is an official distributor of Monitran in Spain.
BAS02ATEX0245XIECEx BAS 08.0013X
Group I Ambient temperature −55 °C ≤ Ta ≤ +115 °C
Intrinsically safe for mining (Group I, protection level Ma). Hover or click on each part of the marking to see what it means.
For what environments is the Monitran MTN/M2285 certified?
For Group I (mining), with Ex ia I Ma marking, ambient temperature from −55 °C to +115 °C and BAS02ATEX0245X and IECEx BAS 08.0013X certificates.
Do you need an intrinsically safe barrier?
Yes. It connects to the PLC or control system via a barrier. The datasheet mentions the MTL7787+ (BAS01ATEX7217) and the P&FZ787 (BAS01ATEX7005), or any other barrier conforming to note 4 of drawing ATX038. Entity parameters: Ui = 28 V, Ii = 93 mA, Pi = 0.65 W.
Is it suitable for surface industry (Group II)?
No. The technical data sheets certify the M2285 only for Group I (Ex ia I Ma) and do not indicate Group II certification.
| Feature | Specification |
|---|---|
| Measure and signal | |
| Measured magnitude | Vibration velocity, rms value |
| Exit | 4-20 mA DC proportional to the rms speed (mm/s), 2 wires |
| Measurement ranges | 0-10, 0-20, 0-25, 0-50 or 0-100 mm/s rms |
| Frequency response | 2 Hz to 1 kHz ±10% |
| Resonance of the mounted base | 5 kHz (nominal) |
| Dynamic range | 50g peak |
| Temperature sensitivity | 0.08 %/°C |
| Cross-sectional sensitivity | Less than 5% |
| ATEX/IECEx Certification | |
| Cluster | I |
| Marked | Ex ia I Ma |
| Certificates | BAS02ATEX0245X and IECEx BAS 08.0013X |
| Ambient temperature | −55 °C ≤ Ta ≤ +115 °C |
| Entity parameters | Ui = 28 V, Ii = 93 mA, Pi = 0.65 W; Ci and Li: see certificate |
| Food and environment | |
| Feeding | 12-32 V DC (4-20 mA) |
| Isolation | Electronics in a Faraday cage, isolated from the body |
| Protection | IP67 |
| Mechanics and connection | |
| Housing material | Stainless steel |
| Entrance | Superior |
| Mounting | ¼" UNF female thread or Q/F female quick-release base |
| Dimensions | Ø27.0 mm × 43.0 mm high, 28 mm hexagon between faces |
| Tightening torque | 8 Nm |
| Weight | 150 g (nominal) |
| Connection | Integrated ETFE cable with stainless steel braid |
| Standard cable length | 5 m |
| Maximum cable length | See system diagram ATX038 |
| Reference | Configuration |
|---|---|
| MTN/M2285IC-xx MTNM2285ICXX | Variant: M2285IC · Connection: Integrated ETFE cable with stainless steel braid · Mounting: ¼" UNF female · Top entry · xx = range 0-10, 0-20, 0-25, 0-50 or 0-100 mm/s rms |
| MTN/M2285ICQ-xx MTNM2285ICQXX | Variant: M2285IC · Connection: Integrated ETFE cable with stainless steel braid · Mounting: Female Q/F quick-release base · Top entry · xx = range 0-10, 0-20, 0-25, 0-50 or 0-100 mm/s rms |
MTL7787+ (BAS01ATEX7217) or P&FZ787 (BAS01ATEX7005), or any other barrier in accordance with note 4 of drawing ATX038.
Do not install in an atmosphere with high-speed airborne dust.
The parameters Ci and Li refer to the certificate; the sheet does not give their value.
Eaton Zener Barrier, MTL7700 Series
Cited in the Monitran technical data sheet. Barrier data: Eaton specification sheet.
