PMT2 Series Particulate Transmitter
The PMT2 Series Particulate Transmitter is designed to measure particulate levels in the emissions of dust collectors. Utilizing DC-coupled electrostatic induction sensing technology, it monitors the pA current generated as particulates pass near the probe. The transmitter provides a 4-20 mA signal that varies with particulate levels. It offers 6 sensitivity ranges, user-selectable for optimal application fit. Range and test selection switches can be set to output 4 mA or 20 mA signals for setup or troubleshooting. An averaging time setting can suppress signal fluctuations if needed.
Features & Benefits
- Simple 2-wire installation for PLCs and control panels.
- Non-stick PTFE coated probe prevents erroneous readings from moisture and conductive dust, condensation, and dust buildup.
- Remote zero calibration reduces maintenance time.
Applications
- Emissions monitoring
- Bag break detection in dust collectors
- Filter leak or wear detection
- Bin vent monitoring
Product Attributes
- Brand: Dwyer Instruments, Inc.
- Certifications: ATEX and IECEx (IS), UL (IS)*
- Materials: 316L SS, Silicone, PTFE, Powder Coated Aluminum
Technical Specifications
| Model | Series | Probe Length | Process Connection | Housing Rating | Electrical Inlet | Options |
| PMT2-05-A-U2 | PMT2 | 05 (5) | 3/4 Male NPT | UL (IS)* | 1/2 Female NPT (Standard) | - |
| PMT2-05-A2-U2 | PMT2 | 05 (5) | 3/4 Male NPT | ATEX and IECEx (IS) | M20 Female | - |
| PMT2-10-A-U2 | PMT2 | 10 (10) | 3/4 Male NPT | UL (IS)* | 1/2 Female NPT (Standard) | - |
| PMT2-15-BSPT-A2 | PMT2 | 15 (15) | 3/4 Male BSPT with 1.5 Tri-Clamp Kit | ATEX and IECEx (IS) | M20 Female | - |
| PMT2-20-NPT-A | PMT2 | 20 (20) | 1 Male NPT | UL (IS)* | 1/2 Female NPT (Standard) | - |
| PMT2-30-M20-A2 | PMT2 | 30 (30) | 3/4 Male NPT | ATEX and IECEx (IS) | M20 Female | ST Stainless Steel Tag |
| PMT2-36-NPT-U2 | PMT2 | 36 (36) | 3/4 Male NPT | UL (IS)* | 1/2 Female NPT (Standard) | - |
*Not an option without ATEX or IECEx. Devices without suffix A2 do not comply with 2014/34/EU (ATEX) directive and are not suitable for potentially explosive atmospheres in the EU. These devices may carry CE marking for other EU directives.
Specifications Summary:
| Specification | Details |
| Media | Air and compatible gases, conductive or non-conductive particles of any type. |
| Wetted Materials | 316L SS, Silicone, and PTFE. |
| Enclosure | Powder coated aluminum. |
| Accuracy | 5% of reading. |
| Particle Size | 0.3 micron and larger. |
| Detection Range | 5 to 5000 pA (6 selectable range options). |
| Temperature Limits | Ambient: -40 to 63C (-40 to 145F); Process: -40 to 120C (-40 to 248F). |
| Pressure Limit | 30 psi (2 bar). |
| Output Signal | 4-20 mA. |
| Power Requirement | 12-28 VDC. |
| Electrical Connections | Two 1/2 female NPT or two M20 electrical inlets (M20 only for suffix A2). |
| Wiring Terminals | Removable (16 to 20 AWG wire). |
| Process Connections | See model table. BSPT process connections are not UL rated. |
| Probe Length | See model table. |
| Housing Rating | UL Type 4 (IP66); ATEX/IECEx IP65. |
| Mounting Orientation | Any. |
| Averaging Time | 1 to 360 seconds (10 selectable options). |
| Weight | Varies with probe length and mounting type. |
| Agency Approvals | CE, E, O, O, N, L, I, N, E |
2507241753_Dwyer-PMT2-10-A-U2_C49318658.pdf
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