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MiniAir Junior Ex Vane Anemometer for Hazard Applications

MiniAir JuniorEx Portable Vane Anemometer with Hazardous Area Display

Quick Overview

The MiniAir Junior Ex Approved anemometer is suitable for measuring the velocity of gaseous media. The display provides a reading of flow measurement with 2 selectable intervals, 6 or 22 seconds. Min, max and average readings can be displayed for latest interval. Sets are available with standard micro, mini and macro probes as well as individual displays and probes. Standard probes use a snap head principle for quick and easy replacement without the need for re-calibration.

Hazardous Area Approved

The MiniAir Junior Ex anemometer has been discontinued. The closest equivalent available unit is the MiniAir 20 Ex, available via the link below.

Miniair20 ex ATEX approved portable anemometer

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Details

The MiniAir Junior Ex is a portable vane anemometer designed with an explosion protected housing for use in hazardous area applications. The MiniAir Junior is a single channel hand held measuring instrument for air flow measurements using a selection of detachable vane anemometers. The vane anemometers come in three different sizes: Micro; Mini; and Macro, with two different flow ranges available for each: 0-20ms; and 0-40m/s.

The individual probes include a synthetic plastic construction snap head with a metal turbine that generates a frequency output each time the metal blade passes the probe handle. The frequency of rotation is virtually proportional to the air-flow velocity and largely independent of pressure, temperature, density and humidity. The MiniAir Junior display converts the rotational frequency into a standard signal and shows the measured value in the display. Probes are available with either Aluminium or Steel vane and handles. The Aluminium probes are suitable for non-aggressive gases, whilst the Steel probes are more suited for more aggressive environments and more durable.

Features

Suitable for use with all MiniAir JuniorEx flow sensors.
4 Digit LCD display
Instantaneous value measurements
Minimum, Maximum and Averare values continuously selectable
2 Average value measurement intervals: Fast = 6 Secs, Slow = 22 Secs.
Easy operation by key pad
Snap head vanes for easy measuring vane replacement, existing calibration retained.

Specifications

MiniAir Junior Ex Display Unit

Display:	4 Digit LCD
Unit of Measure:	Flow: m/s
Power Supply:	9V LR22 Battery
Battery Life:	12 Hours
Case Dimensions:	80 x 145 x 39mm
IP Rating:	IP40 (ABS Plastic)
Weight:	230g
Operating Temp:	0 to 50°C
Storage Temp:	-30 to + 80°C
ATEX Certification:	II 2G Ex ia IIC T6 Gb I M2 Ex ia I Gb

Vane Anemometers

Air Probe	Micro	Mini	Macro
Flow Range	0.5-20m/s 0.7-40m/s	0.3-20m/s 0.5-40m/s	0.15-20m/s 0.3-40m/s
Accuracy of Flow	±2% fs, ±5% rdg	±1% fs, ±3% rdg	±1% fs, ±3% rdg
Operating Temperature	-30 to +140°C	-30 to +140°C	-30 to +140°C
Vane & Shaft Construction	Aluminium	Aluminium or Steel	Aluminium or Steel
Head Dimensions	ø 11 x 15 mm	ø 22 x 28 mm	ø 85 x 80 mm
Handle Diameter	15mm	15mm	15mm
Probe Length	165 mm	175 mm	235 mm
Cable Length	1.8m	1.8m	1.8m

The internal battery is replaceable and the unit should be removed from the hazardous area to a safe area when the battery is being replaced. Any replacement battery needs to be one that is approved in the MiniAir Junior EX Certification to retain the ATEX certification. The use of any other battery would invalidate the certification of the unit and it should not be retaken back into the Hazardous Area with an incorrect battery. The battery compartment has to be resealed and secured with the special screw after changing battery before returning it to any Hazardous Area. A special screwdriver is supplied with each new display to allow the battery compartment to be opened.

Snap-Head Replacement

The snap-head fixing system renders it very simple to fit a new impeller to the flow probe: this saves costly non-productive time and in the event of damage to the snap-head enables you to have the probe back in service in a matter of seconds by simply changing the snap-head.

Any snap head replacement should be of the same original size and flow range.

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	PRICE	ORDER ITEM

MiniAir Junior Ex Display Unit
MCJUEX	MiniAir Junior EX Anemometer Display Unit. Single channel hand-held air flow monitoring unit with 4 Digit LCD display showing min, max and average flow velocity (selectable 6 or 22 sec averaging). Internal 9V LR22 battery suitable for up to 12 hours operation. IP40 explosion protected housing. Dimensions: 80 x 145 x 39mm, weight 230g. Operating temp: 0 to 50°C. ATEX Certification: II 2G Ex ia IIC T6 Gb & I M2 Ex ia I Gb	£2,222.43	Not Available online

MiniAir Junior EX ATEX Approved
MIEXJU2112	MiniAir Junior EX Micro Vane Anemometer. Range 0-20m/s with a ±2% FS accuracy. Plastic measuring head, designed as a snap-on head with Aluminium vane and shaft. Suitable for media temperatures up to 140°C. Probe head dimensions 11mm diameter x 15mm with a probe length of 165mm and 1.8m cable with connector for MiniAir Junior EX display unit.	£1,111.89	Not Available online
MIEXJU2114	MiniAir Junior EX Micro Vane Anemometer. Range 0-40m/s with a ±2% FS accuracy. Plastic measuring head, designed as a snap-on head with Aluminium vane and shaft. Suitable for media temperatures up to 140°C. Probe head dimensions 11mm diameter x 15mm with a probe length of 165mm and 1.8m cable with connector for MiniAir Junior EX display unit.	£1,188.71	Not Available online
MIEXJU2122	MiniAir Junior EX Mini Vane Anemometer. Range 0-20m/s with a ±1% FS accuracy. Plastic measuring head, designed as a snap-on head with Aluminium vane and shaft. Suitable for media temperatures up to 140°C. Probe head dimensions 22mm diameter x 28mm with a probe length of 175mm and 1.8m cable with connector for MiniAir Junior EX display unit.	£964.98	Not Available online
MIEXJU2124	MiniAir Junior EX Mini Vane Anemometer. Range 0-40m/s with a ±1% FS accuracy. Plastic measuring head, designed as a snap-on head with Aluminium vane and shaft. Suitable for media temperatures up to 140°C. Probe head dimensions 22mm diameter x 28mm with a probe length of 175mm and 1.8m cable with connector for MiniAir Junior EX display unit.	£1,037.76	Not Available online
MIEXJU2132	MiniAir Junior EX Macro Vane Anemometer. Range 0-20m/s with a ±1% FS accuracy. Plastic measuring head, designed as a snap-on head with Aluminium vane and shaft. Suitable for media temperatures up to 140°C. Probe head dimensions 85mm diameter x 80mm with a probe length of 235mm and 1.8m cable with connector for MiniAir Junior EX display unit.	£1,243.97	Not Available online
MIEXJU2134	MiniAir Junior EX Macro Vane Anemometer. Range 0-40m/s with a ±1% FS accuracy. Plastic measuring head, designed as a snap-on head with Aluminium vane and shaft. Suitable for media temperatures up to 140°C. Probe head dimensions 85mm diameter x 80mm with a probe length of 235mm and 1.8m cable with connector for MiniAir Junior EX display unit.	£1,311.35	Not Available online
95.2032	MiniAirJunior Mini, EEX probe anemometer, air velocity range 0.3 - 20 m/s, accuracy +/- 1% of full scale, 3% of reading, head dim 22 x 28mm, access opening 35 mm, probe length 175mm, with 1.5 metres of cable. vane and Handle in steel	£1,188.71	Not Available online

Extension Rods
98.0030	Aluminium extension rod for the MiniAir/Water range of vane/turbine probes. Diameter 15mm and 180mm long extension rod. Rod includes M12 male and female threads for connecting to all MiniAir, MiniWater and ThermoAir probes.	£44.57	or call us for a quote
98.0016	Aluminium extension rod for the MiniAir/Water range of vane/turbine probes. Diameter 15mm and 300mm long extension rod. Rod includes M12 male and female threads for connecting to all MiniAir, MiniWater and ThermoAir probes.	£65.81	or call us for a quote

Replacement MiniAir Junior Snap Heads
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.	£209.07	Not Available online
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.	£254.70	Not Available online
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.	£168.75	Not Available online
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.	£209.07	Not Available online