FLOWMETER Three models available• High Flow: 5 to 30 L/min• Medium Flow: 0.50 to 5 L/min• Low Flow: 20 to 500 ml/min

 CalChek® capability in medium and high flow models provides directcommunication to CalChek-ready pumps for automatic flow rate
verification/calibration
 Certified volumetric accuracy is 1% of reading for ranges of
5 to 30 L/min (high flow), 750 to 5000 ml/min (medium flow),and 50 to 500 ml/min (low flow)• 2.5% accuracy outside of above ranges

 Average flow display feature Built-in sensors adjust for changes in temperature
and atmospheric pressure
 Calibrated against NIST, UK, or ISO national standards
in an ISO 17025-accredited laboratory• NIST, UK, or ISO standards traceable calibration
certificate supplied Sleek design for flow rate verification anywhere, anytime• 7.1 x 3.3 x 1.3 inches (18 x 8.3 x 3.3 cm)• Models under 9 ounces (255 grams)• Compact for handheld use

 9-volt alkaline battery operation• Auto shut-off feature

 No moving parts, use in any orientation
 Internal filter protects components from dust

To learn more, visit www.skcinc.com

The Leader in Sampling Solutions andExpertise for OEHS Professionals

www.skcinc.com

Low flow chek-mate shown withPocket Pump TOUCH sample pump

SCIENCE. SERVING PEOPLE.

Long barbed fitting
securely holds tubing
Moving-average flow
reading available
continuously on large
display
Easy one-button operation

Sleek, lightweight

How chek-mate Works

The highly accurate SKC chek-mate Flowmeters are reliable
differential pressure airflow meters that incorporate sensors
to measure pressure drop across a fixed orifice. Sensors
automatically correct for changes in air temperature andatmospheric pressure to provide accurate volumetric flowrate readings without the inconveniences of piston-styleflowmeters.

chek-mate Flowmeters with CalChek Feature

The CalChek feature allows direct communication between
chek-mate Flowmeters and CalChek-ready sample pumps.
With the CalChek Cable connected directly between the Leland
Legacy pump or an AirChek TOUCH Standard or e-Cradle,
CalChek automatically verifies flow at a single flow point orcalibrates across the pump’s flow range.

Performance Profile

Principle of Operation: Differential pressure 		measurement of pressure drop
across a fixed orifice
Flow Measurement Range (volumetric):
High Flow: 5 to 30 L/min
Medium Flow: 0.5 to 5 L/min		
Low Flow: 20 to 500 ml/min
Display Resolution: High Flow: 0.01 L/min
Medium Flow: 0.001 L/min
Low Flow: 0.01 up to 100 ml/min and
0.1 above 100 ml/min
Accuracy: ±1% of reading (2.5% outside of listed ranges
for Medium Flow and Low Flow models)High Flow: 5 to 30 L/min
Medium Flow: 750 to 5000 ml/min
Low Flow: 50 to 500 ml/min
Operating Temperature Range: 32 to 104 F (0 to 40 C)
Operating Atmospheric Pressure: 20.7 to 32.2 inches Hg(700 to 1090 mbar)
Operating Altitude: Sea level to approx. 10,000 ft (3050 m)
above sea level
Power: One disposable 9-V alkaline battery 		(PP3/6LR61/1604A or equivalent) or rechargeable
8.4-V NiMH battery (PP3/6HR1/8.4H5 or 		equivalent)
Run Time: Approximately 30 hrs, dependent on battery
Certifications: CE, UKCA
Dimensions: 7.1 x 3.3 x 1.3 in (18 x 8.3 x 3.3 cm)
Weight: Medium Flow - 8.3 oz (236 gm)
Low Flow - 8.2 oz (232 gm)
High Flow - 8.6 oz (244 gm)

Ordering Information
Description
High Flow chek-mate Flowmeter with CalChek Feature includes a 9-volt alkaline battery, (CalChek Cable soldseparately; see below. Flowmeter hosetail is a larger diameter for higher flow pumps.)with UK standard traceable calibration certificate
with NIST standard traceable calibration certificate
with ISO standard traceable calibration certificate
Kit with NIST standard traceable calibration certificate and pulsation dampener Cat. No. 375-150
Kit with ISO standard traceable calibration certificate and pulsation dampener Cat. No. 375-150
Medium Flow chek-mate Flowmeter with CalChek includes a 9-volt alkaline battery
with UK standard traceable calibration certificate
with NIST standard traceable calibration certificate
with ISO standard traceable calibration certificate
Kit with NIST standard traceable calibration certificate and pulsation dampener Cat. No. 375-100
Kit with ISO standard traceable calibration certificate and pulsation dampener Cat. No. 375-100
Low Flow chek-mate Flowmeter includes a 9-volt alkaline battery
with UK standard traceable calibration certificate
with NIST standard traceable calibration certificate
with ISO standard traceable calibration certificate
Accessories
CalChek Communication Cable use with Cat. Nos. 375-0550N, 375-0550, 375-0550S, 375-50300N, 375-50300, and375-50300S, required for CalChek automatic flow rate verification/calibration of AirChek TOUCH and Leland Legacy
sample pumps
Pulsation Dampeners, required for use with the following (also available in kits; see above)chek-mate Flowmeter Cat. Nos. 375-0550N, 375-0550, and 375-0550S
for CalChek full calibration of AirChek TOUCH pumpchek-mate Flowmeter Cat. Nos. 375-50300N, 375-50300, and 375-50300Sfor flow rate verification of high flow pumps and CalChek flow rate verification/calibration of theLeland Legacy pump

Flow Range
5 to 30 L/min

Cat. No.
375-50300
375-50300N
375-50300S
375-50300-KN
375-50300-KNS

0.50 to 5 L/min

20 to 500 ml/min

www.skcinc.com | SKC Inc. 724-941-9701 | SKC-West 714-992-2780 | SKC South 434-352-7149

375-0550
375-0550N
375-0550S
375-0550-KN
375-0550-KNS
375-00205
375-00205N
375-00205S

375-200
375-100
375-150

MP1912 Rev 2024.04