DescriptionEXAIR's Digital Flowmeter™ is a clamp-on, non-intrusive flow monitoring device for compressed air with optional data logging. The bright digital display provides real-time flow in SCFM or m3/hr and helps identify leaks and inefficient air use without cutting or welding pipe. Designed for permanent or temporary mounting; blocking rings are available for models that require removal. Units fit Schedule 40 iron pipe (1/2"–8"), aluminum pipe (25–101 mm) and copper pipe up to 4". Consult EXAIR for NEMA 4 models and special materials.
Advantages- Quick installation — no cutting, welding, calibration or flow interruption required
- Optional Summing Remote Display and USB Data Logger for recording and remote viewing
- No moving parts — low maintenance
- Sensitive measurement at low flows
- Includes required components for installation
- Wide size range available (iron, copper, aluminum options)
Models- Available for Schedule 40 iron pipe from 1/2" through 8"
- Available for copper pipe from 3/4" through 4"
- Available for aluminum pipe sizes 25 mm to 101 mm
- Metric or English unit displays can be specified for all models
- Models available with or without drill guides
Accessories- USB Data Logger (Model 9147): connects directly to the Digital Flowmeter; configurable recording rate from once per second to once every 12 hours; data read via included software or exported to spreadsheets.
- Summing Remote Display: remote viewing of current consumption, previous 24 hours usage and total cumulative usage.
- Drill Guide Kit: ensures precise probe hole placement in pipe for reliable installation.
- Block-Off Ring: required if you remove or relocate the Digital Flowmeter.
Dimensions and Flow Range - Small Digital FlowmeterSeries 9090 | Pipe Size 1/2" | A in 3.31 | A mm 84 | Flow Range 1–100 SCFM (1.7–170 m3/hr)
Series 9091 | Pipe Size 3/4" | A in 3.49 | A mm 89 | Flow Range 1–150 SCFM (1.7–255 m3/hr)
Series 9092 | Pipe Size 1" | A in 3.87 | A mm 98 | Flow Range 2–200 SCFM (3.4–340 m3/hr)
Series 9093 | Pipe Size 1 1/4" | A in 4.24 | A mm 108 | Flow Range 4–400 SCFM (6.8–680 m3/hr)
Series 9094 | Pipe Size 1 1/2" | A in 4.62 | A mm 117 | Flow Range 4–400 SCFM (6.8–680 m3/hr)
Series 9091CU | Pipe Size 3/4" | A in 3.49 | A mm 89 | Flow Range 1–150 SCFM (1.7–255 m3/hr)
Series 9092CU | Pipe Size 1" | A in 3.68 | A mm 93 | Flow Range 2–200 SCFM (3.4–340 m3/hr)
Series 9093CU | Pipe Size 1 1/4" | A in 3.87 | A mm 98 | Flow Range 2–200 SCFM (3.4–340 m3/hr)
Series 9094CU | Pipe Size 1 1/2" | A in 4.24 | A mm 108 | Flow Range 4–400 SCFM (6.8–680 m3/hr)
Series 91025 | Pipe Size 25 mm | A in 3.49 | A mm 89 | Flow Range 2–200 SCFM (3.4–340 m3/hr)
Series 91040 | Pipe Size 40 mm | A in 4.24 | A mm 108 | Flow Range 4–400 SCFM (6.8–680 m3/hr)
Dimensions and Flow Range - Large Digital FlowmeterSeries 9095 | Pipe Size 2" | A in 5.34 | A mm 136 | Flow Range 6–600 SCFM (10.2–1020 m3/hr)
Series 9096 | Pipe Size 2 1/2" | A in 6.09 | A mm 155 | Flow Range 8–800 SCFM (13.6–1359 m3/hr)
Series 9097 | Pipe Size 3" | A in 6.71 | A mm 171 | Flow Range 12–1200 SCFM
Series 9098 | Pipe Size 4" | A in 7.71 | A mm 196 | Flow Range 20–2000 SCFM
Series 9099 | Pipe Size 5" | A in 8.84 | A mm 224 | Flow Range 30–3000 SCFM (51–5100 m3/hr)
Series 90100 | Pipe Size 6" | A in 9.84 | A mm 250 | Flow Range 50–5000 SCFM
Series 90101 | Pipe Size 8" | A in 11.84 | A mm 301 | Flow Range 100–6000 SCFM
Series 9095CU | Pipe Size 2" | A in 5.09 | A mm 129 | Flow Range 6–600 SCFM (10.2–1020 m3/hr)
Series 9096CU | Pipe Size 2 1/2" | A in 5.84 | A mm 148 | Flow Range 8–800 SCFM (13.6–1359 m3/hr)
Series 9097CU | Pipe Size 3" | A in 6.34 | A mm 161 | Flow Range 10–1000 SCFM (17–1699 m3/hr)
Series 9098CU | Pipe Size 4" | A in 7.34 | A mm 186 | Flow Range 20–2000 SCFM (34–3398 m3/hr)
Series 91050 | Pipe Size 50 mm | A in 5.1 | A mm 129 | Flow Range 6–600 SCFM (10.2–1020 m3/hr)
Series 91063 | Pipe Size 63 mm | A in 5.6 | A mm 142 | Flow Range 8–800 SCFM (13.6–1359 m3/hr)
Series 91076 | Pipe Size 76 mm | A in 6.3 | A mm 161 | Flow Range 10–1000 SCFM (17–1699 m3/hr)
Series 91101 | Pipe Size 101 mm | A in 7.3 | A mm 186 | Flow Range 20–2000 SCFM (34–3398 m3/hr)
Technical specifications- Accuracy: 5% of reading plus 1% of range for flows from 10% to 100% of indicated range at air temperatures between 20° to 120°F (approx. -7° to 49°C).
- Operating Pressure: 200 PSIG maximum on Sch. 40 iron and on Type L copper below 3"; consult EXAIR for other materials and higher pressures.
- Input Power: 250 mA at 24 VDC
- Output Resistance: 600 Ohms maximum
- Wetted Materials: stainless steel, gold, thermal epoxy and Viton
- Ring Material: aluminum
- Display: four-digit LED display
- Response Time: one second to 63% of change in value at flows above 30% of range
- Compliance: CE and RoHS
- Note: For use with compressed air and nitrogen only.