Digital Flowmeter

Digital Flowmeter

The Exair Digital Flow Meter is a tool designed to monitor compressed air usage and identify waste. Here are some key features:

Easy Installation: No cutting, welding, adjustments, or calibration required.
Data Logging: Records air flow rates from once per second to once every 12 hours.
Multiple Pipe Sizes: Available for 1/2" to 8" Schedule 40 Iron Pipe, 25mm to 101mm Aluminum Pipe, and Copper Pipe up to 4".
Remote Monitoring: Optional remote display for viewing data from a distance.
Pressure Sensing: Some models can also monitor pressure inside the pipe.
CE and RoHS Compliant: Meets OSHA noise and pressure requirements

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What Is The Digital Flowmeter?

EXAIR's Digital Flowmeter, with data logging capability available, is the easy way to monitor compressed air consumption and waste! The digital display shows the exact amount of compressed air being used, making it easy to identify costly leaks or inefficient air products. No cutting, welding, adjustments or calibration are ever required. It is designed for permanent or temporary mounting to a compressed air pipe. If the unit needs to be removed, blocking rings are available. Available for measuring air flow in SCFM on schedule 40 iron pipe from 1/2"-6" diameter. Air flow meters for copper pipe up to 4" are also available.

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Why The Digital Flowmeter?

The Digital Flowmeter has an LED display that directly indicates the SCFM or m3/hr volume of airflow through that pipe. Models from 1/2" to 4" iron pipe are in stock. Each Digital Flowmeter is calibrated for the pipe size to which it is mounted.
The Digital Flowmeter is designed for permanent or temporary mounting to the pipe. It requires the user to drill two small holes through the pipe using the included drill bit and locating fixture. The two flow sensing probes of the fl owmeter are inserted in these holes. The unit seals to the pipe once the clamps are tightened. No cutting, welding, adjustments or calibration are ever required. If the unit needs to be removed, blocking rings are available. NEMA Type 4 (IP66) meters available. Consult the factory.

How it Works?

These flowmeters measure flow by maintaining a temperature differential between the two probes inserted into the compressed air pipe. One probe is kept warmer than the other and mass flow rate is determined by the amount of heat required to maintain the temperature differential.The flow rate, in SCFM or m3/hr, is shown on the large four-digit display. A 4-20 mA output and pulse output permit remote display of the flow value and data collection.

Specifications - Digital Flowmeter
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.
Operating Pressure	200 PSIG maximum on Sch. 40 iron and on Type L Copper below 3". Consult EXAIR for other materials and at 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.
Pressure Range	N/A
Compliance	CE and RoHS
Note: For use with compressed air and nitrogen only.

Dimensions and Flow Range - Small Digital Flowmeter
			A
	Series	Pipe Size	in	mm	Flow Range
	9090	1/2"	3.31	84	1-100 SCFM (1.7-170 m³/hr)
	9091	3/4"	3.49	89	1-150 SCFM (1.7-255 m³/hr)
	9092	1"	3.87	98	2-200 SCFM (3.4-340 m³/hr)
	9093	1 1/4"	4.24	108	4-400 SCFM (6.8-680 m³/hr)
	9094	1 1/2"	4.62	117	4-400 SCFM (6.8-680 m³/hr)
	9091CU	3/4"	3.49	89	1-150 SCFM (1.7-255 m³/hr)
	9092CU	1"	3.68	93	2-200 SCFM (3.4-340 m³/hr)
	9093CU	1 1/4"	3.87	98	2-200 SCFM (3.4-340 m³/hr)
	9094CU	1 1/2"	4.24	108	4-400 SCFM (6.8-680 m³/hr)
	91025	25mm	3.49	89	2-200 SCFM (3.4-340 m³/hr)
	91040	40mm	4.24	108	4-400 SCFM (6.8-680 m³/hr)

Dimensions and Flow Range - Large Digital Flowmeter
			A
	Series	Pipe Size	in	mm	Flow Range
	9095	2"	5.34	136	6-600 SCFM (10.2-1020 m³/hr)
	9096	2 1/2"	6.09	155	8-800 SCFM (13.6-1359 m³/hr)
	9097	3"	6.71	171	12-1200 SCFM
	9098	4"	7.71	196	20-2000 SCFM
	9099	5"	8.84	224	30-3000 SCFM (51-5100 m³/hr)
	90100	6"	9.84	250	50-5000 SCFM
	90101	8"	11.84	301	100-6000 SCFM
	9095CU	2"	5.09	129	6-600 SCFM (10.2-1020 m³/hr)
	9096CU	2 1/2"	5.84	148	8-800 SCFM (13.6-1359 m³/hr)
	9097CU	3"	6.34	161	10-1000 SCFM (17-1699 m³/hr)
	9098CU	4"	7.34	186	20-2000 SCFM (34-3398 m³/hr)
	91050	50mm	5.1	129	6-600 SCFM (10.2-1020 m³/hr)
	91063	63mm	5.6	142	8-800 SCFM (13.6-1359 m³/hr)
	91076	76mm	6.3	161	10-1000 SCFM (17-1699 m³/hr)
	91101	101mm	7.3	186	20-2000 SCFM (34-3398 m3/hr)

Easy to install
Summing Remote Display and Data Logger available
No moving parts
Sensitive at low flows
No calibration or setup required
Includes all components for installation
Models from 1/2" to 4" Schedule 40 iron pipe in stock
Models are available for sizes 1/2" to 8" in iron pipe
Models are available for sizes 3/4" to 4" in copper pipe
Models are available for sizes 25mm to 101mm in aluminum pipe

Digital Flowmeter Models

Models are available for 1/2" through 8" Schedule 40 iron pipe.
Models are available for 3/4" through 4" copper pipe.
Models are available for sizes 25mm to 101mm in aluminum pipe
Metric or English unit displays can be specified for all model sizes.
Models can be ordered with or without drill guides.

USB Data Logger

EXAIR's USB Data Logger Model 9147, which has received accolades, is designed to seamlessly connect to the Digital Flowmeter, ensuring ease of use. This versatile device can be set to log flow rates at intervals ranging from every second to every 12 hours. The recorded data can then be accessed using the provided software or exported into a spreadsheet for further analysis.

Drill Guide Kit

The Drill Guide Kit ensures accurate placement when drilling the necessary holes in your pipe for the Digital Flowmeter probes.

Block-Off Ring

The Block-Off Ring is necessary should you decide to remove or relocate your Digital Flowmeter.

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