Advanced Calibration Designs, Inc.
Certified Calibration Gas Solutions
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ACD Advanced Calibration Designs, Inc. Advanced Calibration Designs, Inc.

Advanced Calibration Designs, Inc.
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MiniBump Calibration Gas or Bump Tester

The Cal 2000 is CSA, ATEX and CE certified

The ACD MiniBump is Calibration Ready!

Gases supported:

  • CSA certified intrinsically safe.
  • Compact "shirt pocket" size.
  • Low power consumption.
  • Tracks cell usage.
  • Field replaceable generating source.





The MiniBump is an ultra-small certified calibration gas instrument specifically designed to bump test and calibrate gas monitors for chlorine, hydrogen, hydrogen cyanide and hydrogen sulfide.

  • Interchangeable calibration gases.
  • Automatic shut down after each test.
  • Alkaline battery powered.
  • Disposable generating source.
  • ATEX II3G EEx nL IIB T4 approved.
  • CSA NRTL/C Exia T-6 approved intrinsically safe with CE Mark.

The MiniBump is the smallest, most lightweight and adaptive calibration gas source on the market. It is our lowest entry cost product as well as our simplest to use. It is certified to be intrinsically safe for operation on potentially explosive atmospheres. The MiniBump is also safe for plane transport, something not possible with calibration gas cylinders.

The MiniBump operates with interchangeable generating sources providing either fixed concentration output for calibration, or ‘bump’ output to drive your monitor into alarm
for operational verification.

Available in hydrogen sulfide, chlorine, hydrogen and hydrogen cyanide. The complete device fits into your shirt pocket and provides the equvalent of five 58 liter cylinders of gas with each generating source.

MiniBump operation video

MiniBump brochure

How ACD's revolutionary calibration gas generators out perform cylinder gas.

ACD MiniBump calibration gas bump tester



Bump Test Sources  
Chlorine (Cl2) 1-25 PPM > 5 PPM
Hydrogen (H2) 1-25 PPM > 25 PPM
Hydrogen Sulfide (H2S) 1-25 PPM > 10 PPM
Hydrogen Cyanide (HCN) 1-25 PPM > 25 PPM
Calibration Gas Sources  
Chlorine (Cl2) Specify
Hydrogen (H2) Specify
Hydrogen Sulfide (H2S) Specify
Hydrogen Cyanide (HCN) Specify
Cell Life Up to 1000 tests or 5 hours
L x W x H 4.09 x 2.36 x 1.18" (10.4 x 6.0 x 3.0cm)
Weight .5 lb. (220 g)
Operating Temperature 0° C to 50° C
Relative Humidity (intermittent use) 0 - 100%
Intrinsic Safety Class 1, Division 1, Groups A, B, C, D
Battery Power 2 alkaline "AA"
Battery Life Approx. 10 hours