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MiniAir Junior Replacement Snap Heads
  • MiniAir Junior Replacement Snap Heads

MiniAir Junior Replacement Snap Heads

3 Week Del.

Quick Overview

The MiniAir Junior anemometers are designed with snap on heads that can be replaced on site without any need for recalibration or adjustment. Replacement snap heads should be of the same original size, flow range and vane material as the original probes. A table is provided on this page to allow you to select the correct replacement snap head for your MiniAir Junior probe.

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Details

Plastic snap-on heads for MiniAir Junior vane anemometer

The MiniAir Junior individual probes are designed with a snap head vane anemometer and separate probe handle that contains all the electronics. The standard probes include a synthetic plastic construction snap head with an Aluminium turbine that are suitable for non-aggressive gas flow measurements. For aggressive gas flows, or more aggressive environments, probes for the MiniAir Junior Ex are available with the same plastic snap head but with a Steel vane turbine.

Probes are available in three sizes, Micro, Mini and Macro and with two different flow rate ranges, 0-20m/s and 0-40m/s. All the probes work in the same way to generate a pulse output each time the metal blade passes the probes handle. The frequency of rotation is virtually proportional to the air flow velocity and largely independant of pressure, temperature, density and humidity. The difference sizes of snap heads generate different amounts of pulses for the different flow rates and this means that when the snap head is replaced, the new snap head should be the same size and flow rate as the old one. Failure to match the snap heads to the calibrated probe handle will result in inaccuracies in the output and therefore readings on the MiniAir Junior display.

The plastic snap head versions of the air-flow sensors are all designed as snap-on head versions. The snap-head fixing system makes it very simple to fit a new snap head impeller to the flow probe: this saves costly non-productive time and in the event of damage to the snap-head, having a replacement snap head allows you to have probes back in service in a matter of seconds by simply changing the snap-head. A defective measuring head can simply be replaced by a new snap-on head. The old snap head should be pulled directly from the handle and the replacement head pushed directly on to the handle. The original calibration is retained and no adjustments should be required.

A selection of specific snap-on heads are available in the following two versions:

Snap Head Principle

  • Head part: plastic, vane: Aluminium / Micro, Mini, Macro
  • Head part: plastic, vane: Steel / Mini, Macro, only explosion-protected version


A snap-on head can only be replaced by a snap-on head of the same size for the same model, i.e. Micro for Micro, Mini for Mini and Macro for Macro. The vane material must also be the same (Aluminium or Steel). Trying to use the wrong MiniAirJunior snap-on head, will cause the probe to lose its accuracy. Please refer to the table below to ensure the snap head matches your original probe.

Anemometer Part No. Description Flow Rate Snap Head Part No.
MINIJU212, MIEXJU2112,
95.2006 & 95.2036
Micro Plastic Head
with Aluminium Vane
0-20m/s

SNAPJU112

MINIJU214, MIEXJU2114,
95.2007 & 95.2037
Micro Plastic Head
with Aluminium Vane
0-40m/s

SNAPJU114

MINIJU222, MIEXJU2122,
95.2004 & 95.2038
Mini Plastic Head
with Aluminium Vane
0-20m/s

SNAPJU122

MINIJU224, MIEXJU2124,
95.2005 & 95.2039
Mini Plastic Head
with Aluminium Vane
0-40m/s

SNAPJU124

MINIJU232, MIEXJU2132,
95.2014 & 95.2040
Macro Plastic Head
with Aluminium Vane
0-20m/s

SNAPJU132

MINIJU234, MIEXJU2134,
95.2009 & 95.2041
Macro Plastic Head
with Aluminium Vane
0-40m/s

SNAPJU134

MINIJU252, MIEXJU2252

Mini Plastic Head
with Steel Vane
0-20m/s

SNAPJU252

MINIJU254, MIEXJU2254

Mini Plastic Head
with Steel Vane
0-40m/s

SNAPJU254

MINIJU262, MIEXJU2262

Macro Plastic Head
with Steel Vane
0-20m/s

SNAPJU262

MINIJU264, MIEXJU2264

Macro Plastic Head
with Steel Vane
0-40m/s

SNAPJU264


If you need any help selecting the correct snap head, please contact us directly to discuss your requirements.

Availability: Stock Item

 

Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

REF DESCRIPTION DOWNLOADS PRICE ORDER ITEM
 
Replacement MiniAir Junior Snap Heads
SNAPJU112
SNAPJU112
Replacement MiniAir Junior Micro snap head with an air velocity range of 20 m/s with an Aluminium turbine. Sensing head 11mm diameter x 15mm. This snap head may be used with the MiniAirJunior anemometer probe, Part Ref: MINIJU212 or MiniAirJuniorEx Anemometer probe, Part Ref MIEXJU2112.
£120.01
or call us for a quote
SNAPJU114
SNAPJU114
Replacement MiniAir Junior Micro snap head with an air velocity range of 40 m/s with an Aluminium turbine. Sensing head 11mm diameter x 15mm. This snap head may be used with the MiniAirJunior anemometer probe, Part Ref: MINIJU214 or MiniAirJuniorEx Anemometer probe, Part Ref MIEXJU2114.
£128.51
or call us for a quote
SNAPJU122
SNAPJU122
Replacement MiniAir Junior Mini snap head with an air velocity range of 20 m/s with an Aluminium turbine. Sensing head 22mm diameter x 28mm. This snap head may be used with the MiniAirJunior anemometer probe, Part Ref: MINIJU222 or MiniAirJuniorEx Anemometer probe, Part Ref MIEXJU2122.
£107.27
or call us for a quote
SNAPJU124
SNAPJU124
Replacement MiniAir Junior Mini snap head with an air velocity range of 40 m/s with an Aluminium turbine. Sensing head 22mm diameter x 28mm. This snap head may be used with the MiniAirJunior anemometer probe, Part Ref: MINIJU224 or MiniAirJuniorEx Anemometer probe, Part Ref MIEXJU2124.
£120.01
or call us for a quote
SNAPJU132
SNAPJU132
Replacement MiniAir Junior Macro snap head with an air velocity range of 20 m/s with an Aluminium turbine. Sensing head 85mm diameter x 80mm. This snap head may be used with the MiniAirJunior anemometer probe, Part Ref: MINIJU232 or MiniAirJuniorEx Anemometer probe, Part Ref MIEXJU2132.
£295.22
or call us for a quote
SNAPJU134
SNAPJU134
Replacement MiniAir Junior Macro snap head with an air velocity range of 40 m/s with an Aluminium turbine. Sensing head 85mm diameter x 80mm. This snap head may be used with the MiniAirJunior anemometer probe, Part Ref: MINIJU234 or MiniAirJuniorEx Anemometer probe, Part Ref MIEXJU2134.
£316.48
or call us for a quote
 
Replacement MiniAir Junior Ex Steel Snap Heads
SNAPJU252
SNAPJU252
Replacement MiniAir Junior Mini snap head with an air velocity range of 20 m/s with a synthetic plastic construction snap head with a Steel vane. Sensing head 22mm diameter x 28mm. This snap head may be used with the MiniAirJuniorEx Anemometer probe, Part Ref MIEXJU2252.
£159.29
or call us for a quote
SNAPJU254
SNAPJU254
Replacement MiniAir Junior Mini snap head with an air velocity range of 40 m/s with a synthetic plastic construction snap head with a Steel vane. Sensing head 22mm diameter x 28mm. This snap head may be used with the MiniAirJuniorEx Anemometer probe, Part Ref MIEXJU2254.
£170.97
or call us for a quote
SNAPJU262
SNAPJU262
Replacement MiniAir Junior Macro snap head with an air velocity range of 20 m/s with a synthetic plastic construction snap head with a Steel vane. Sensing head 85mm diameter x 80mm. This snap head may be used with the MiniAirJuniorEx Anemometer probe, Part Ref MIEXJU2262.
£394.00
or call us for a quote
SNAPJU264
SNAPJU264
Replacement MiniAir Junior Macro snap head with an air velocity range of 40 m/s with a synthetic plastic construction snap head with a Steel vane. Sensing head 85mm diameter x 80mm. This snap head may be used with the MiniAirJuniorEx Anemometer probe, Part Ref MIEXJU2264.
£427.99
or call us for a quote