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Inlet
LCD screen
On/off
button
Introduction
Description
The chek-mate Flowmeter (Figure 1) is designed specifi cally for use with air sample pumps. It has a fl ow measurement range of 0.75 to
5 L/min and a volumetric accuracy of 1% of reading.
Checking Package Contents
See below to verify that you received all items associated with the Cat. No. ordered. If you are missing items, contact SKC
at 800-752-8472 (U.S. only) or 724-941-9701.
If You Ordered Cat. No.
Your Package Should Contain
375-07550N
Flowmeter with 9-volt alkaline battery and NIST-traceable calibration certifi cate
Required Equipment
1/4-inch ID tubing
863 Valley View Road, Eighty Four, PA 15330 USA • Tel: 724-941-9701 • www.skcinc.com
Outlet
Front View
Figure 1. chek-mate Flowmeter
www.skcinc.com
chek-mate Flowmeter
Cat. No. 375-07550N
Operating Instructions
Battery
compartment
cover
Battery
Back View
Form 38058 Rev 1706
Page 1 of 4
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Summary of Contents for SKC chek-mate
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Page 1: Operating Instructions
Introduction Description The chek-mate Flowmeter (Figure 1) is designed specifi cally for use with air sample pumps. It has a fl ow measurement range of 0.75 to 5 L/min and a volumetric accuracy of 1% of reading. Checking Package Contents See below to verify that you received all items associated with the Cat. -
Page 2: Getting Started
LCD. Replace the batt ery. See Maintenance. When the battery voltage drops below 7 volts, the LOW BATTERY message displayed on the LCD will fl ash on and off and the chek-mate will turn off automatically. If the chek-mate is turned on again with the battery still in this condition, the LCD will display bAtt LO ten times and then turn off automatically. -
Page 3: Replacement Parts
Maintenance If the chek-mate is not going to be used for an extended period, remove the battery from the battery compartment. Deep discharge of alkaline batteries can result in the eventual leakage of battery electrolyte even from quality batteries and can corrode the battery compartment terminals and potentially the fl... - Page 4 Appendix Performance Profi le Flow Measurement 0.75 to 5.0 L/min volumetric Range Airfl ow Display 0.001 L/min Resolution Airfl ow Accuracy ± 1% of reading Operating Temperature 32 to 104 F (0 to 40 C) Range Operating Atmospheric 20.7 to 32.2 in Hg (700 to 1090 mbar) Pressure Range Operating Altitude Sea level to approximately 10,000 ft (3050 m) above sea level...
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