VELOCICHECK® Air Velocity Meters from TSI Incorporated

Models 8330 and 8340

Features
Specifications
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Model 8330 Features

• Extended velocity range of 0 to 20.00 m/s
• Temperature range of -18 to 93°C
• Easy-to-read digital display
• Slow and fast time constant modes available to smooth the display when measuring fluctuating flows
• 94.0 cm telescoping probe provides exceptional convenience in difficult situations
• Includes a battery check that monitors battery level to ensure accurate readings
• NIST*-traceable calibration certificate

Model 8340 Features

• Listed by Underwriters Laboratories as intrinsically safe for use in hazardous locations for
  Divisions 1 and 2 in Class I, Groups C and D; Class II, Groups E, F and G; and Class III.
• Velocity range of 0 to 10.00 m/s
• Easy-to-read digital display
• Slow and fast time constant modes available to smooth the display when measuring fluctuating flows
• Includes a battery check that monitors battery level to ensure accurate readings
• NIST*-traceable calibration certificate

Specifications - Models 8330 and 8340 VELOCICHECK

Velocity (Model 8340):
  Range:  0 to 10.00 m/s (0 to 2,000 ft/min)
  Accuracy1:  5.0% of reading or ±0.025 m/s (±5 ft/min)  whichever is greater
Velocity (Model 8330):
  Range:  0 to 20.00 m/s (0 to 4,000 ft/min)
  Accuracy2:  5.0% of reading or ± 0.025 m/s (±5 ft/min)  whichever is greater
Temperature (Model 8330):
  Range:  -18 to 93°C (0 to 200°F)
  Resolution:  1°C (1°F)
  Accuracy:  ±1°C (±1°F)
External Meter Dimensions (all models):
  Size Measurements:  70 mm x 33 mm x 132 mm (2.75 in. x 1.3 in. x 5.2 in.)
Meter Probe Type (Model 8330):
  Description:  Detached telescoping
  Material:  Nickel-plated brass and stainless steel
Meter Probe Type (Model 8340):
  Description:  Retractable
  Material:  Stainless steel
Meter Probe Dimensions (Model 8330):
  Probe Length:  94.0 cm (37 in.) telescopic
  Probe Diameter of Tip:  6.0 mm (0.236 in.)
  Probe Diameter of Base: 10.03 mm (0.395 in.)
Meter Probe Dimensions (Model 8340):
  Probe Length:  79 mm (3.1 in.) length when extended
  Probe Diameter:  6.4 mm (0.25 in.)
Operating Temperature Range (Model 8330):
  Instrument:  0 to 60°C (32 to 149°F)
  Probe:  -18 to 93°C (0 to 200°F)
Operating Temperature Range (Model 8340):
  Instrument:  0 to 50°C (32 to 122°F)
  Probe:  0 to 50°C (32 to 122°F)
Battery Life:
  Model 8330:  Minimum 10 hours at 0.5 m/s (100 ft/min)
  using alkaline batteries
  Model 8340:  Minimum 20 hours at 0.5 m/s (100 ft/min) using alkaline batteries
Display (all models):
  Type:  Digital
  Description:  4 1/2 digits, 10 mm (0.4 in.) high
Time Constant (all models):
  Fast mode:  3-second averaging
  Slow mode:  12-second averaging
Power Requirements:
  Model 8330:  Four AA-size batteries, nickel cadmium or  alkaline (provided)
  Model 8340:  Four AA-size batteries, alkaline only (provided)
Safety Rating (Model 8340): UL listed intrinsically safe for use in hazardous locations for Divisions 1 
and 2 in Class I, Groups C and D; Class II, Groups E, F and G; and Class III when used with alkaline batteries
Standard Equipment (all):  Free certificate of NIST* traceability, operation and service manual, 
four size AA alkaline batteries and hard-shell carrying case

	Velocity Range 0 to 10.00 m/s	Velocity Range 0 to 20.00 m/s	Temp.	Digital Display	Time Constant	NIST* Calibration Certificate	Intrinsically Safe
8330
8340

*U.S. National Institute of Standards and Technology

¹The accuracy statement of 5.0% of reading or ±.025 m/s (±5 ft) applies to 0.13 through 10.00 m/s (25 ft/min through 2000 ft/min).
²The accuracy statement of 5.0% of reading or ±.025 m/s (±5 ft) applies to 0.13 through 20.00 m/s (25 ft/min through 4000 ft/min).

Specifications are subject to change without notice.
Specifications in parentheses ( ) indicates metric equivalents.