You could compensate for this by setting it 1 ft/s slow so those 3 shots would now be in the range -0.5 to +0.5 ft/s. So it may pass the test with all 3 shots in the range +0.5 to +1.5 ft/s, +0.4 to 1.5 is a fail. Also the spread must be no more than 1 ft/s. They have to measure 3 consecutive shots at 500+ ft/s and get them with in 2 ft/s of the test gun. The test got stricter until we got a significant failure rate, I like a challenge. We promise you 1% on the velocity and test them to better than half a percent to make sure they can do it. It's a bit geeky but if you can understand it you will like it. If you do not think you can handle this chronograph safely, please do not use it.4: 100 This is neat feature. Improper alignment of the chronograph's sensors with the barrel may lead to the pellet hitting the sensor(s) thus causing irreversible damage to the unit as well as possible bodily harm.Ĥ. Combro chronograph contains glass components in its display panel. Always follow safety procedures in handling your airguns - stay clear of the muzzle at all times!Ģ. Check batteries and / or connections.ĭisplay test ( when holding down RST button ).ġ. Only on circular surface ( barrel or cylinder ) with 12 to 32 mm diameterĮrror. Optional interface si-625 may be used for more detailed displays and expanded functions Large LCD read-outs in either metric or imperial units Velocity and power ( maximum / minimum / average )
), and to ensure the airgun is within legal specifications.įour 1.5 volt batteries ( Duracell LR44, Eveready A76, Varta V13GA, or equivalent ) Use it as a tuning aid, consistency test, to get the most out of a cylinder of air / gas, to detect problems before they become serious ( e.g.
The cb-625 MK4 is a compact chronoscope specifically designed for. Please note: These units are factory calibrated and do not come with a test reference number on the back. The measuring path is also enclosed so measurments under broad daylight are improved. The new version MK4 features a hinged support that allows the user quickly swing the unit away for actual test firing at the target without the worry of damaging the unit. Introducing the latest version of Combro cb-625 MK4 chronograph
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