IP ratings and conformal coatings

Alicat devices are available with conformal coatings and a variety of IP ratings for protection from dust and water. This article details the available options for Alicat devices and briefly explains the purpose of each.

Conformal coating (-CC build option)

High-humidity and condensation due to sudden temperature changes can damage electronics. Most devices are available with an optional acrylic conformal coating, applied to the internal electronics to protect them from moisture.

IP ratings for Alicat devices (-IPXX build option)

Most Alicat instruments are rated to IP40 by default. These are protected against solid objects ≥1.0 mm and have no water protection. IP40-rated devices can be configured with any electrical connectors and any communication protocol. These devices come with a front panel display by default.

IP66 or IP67 ratings are available for most devices ≥50 SCCM. IP-rated devices <20 SLPM have a larger-than-standard form factor, which increases the dead volume and slows instrument response time.

  • IP66 rated devices are dust-tight and resistant to powerful water jets from any direction.
  • IP67 rated devices are dust-tight and can be temporarily immersed in water ≤1 m.

IP66/67 rated instruments use M12O locking connectors. They are available with any analog or serial communication protocol, as well as Ethernet-based industrial protocols: Modbus TCP/IP, EtherCAT, and Ethernet/IP.

Exceptions

IP ratings table

Ingress protection is represented by a two digit IP rating, the first number represents protection from solid objects and the second protection from water.

0
1
2
3
4
5
6
7
8
9
Solid object protection
No protection
Foreign solid objects ≥50 mm
Foreign solid objects ≥12.5 mm
Foreign solid objects ≥2.5 mm
Foreign solid objects ≥1.0 mm
Dust-protected (Ingress of dust is not entirely prevented, but it must not interfere with the satisfactory operation of the equipment.)
Dust-tight (No ingress of dust; complete protection against contact. A vacuum must be applied. Test duration of up to 8 hours based on air flow.)
N/A
N/A
N/A
Water protection
No protection
Vertically falling water drops when mounted in upright position
Vertically falling water drops when tilted up to 15°
Spraying water at an angle up to 60° from the vertical for 5 minutes
Splashing water from any direction for 10 minutes
Water jets (6.3 mm nozzle) from any direction
Powerful water jets (12.5 mm nozzle) from any direction
Temporary immersion in water ≤1 m (under defined conditions)
Continuous immersion in water ≤1 m (under defined conditions)
High pressure, high temperature water jets from any direction

*For a full description of the IP ratings, including their testing conditions, please refer to IEC 60529.

** Higher numerical ratings do not necessarily indicate that they cover the lower ratings as well. For example, an IP67-rated device may be suitable for submersion but unable to withstand water jets. However, all Alicat instruments rated to IP66 or IP67 meet both specifications.

FastTrack Ordering

Hydrogen mass flow instruments that ship in just 3-5 business days.
CALIBRATION
Standard or High Accuracy
DISPLAY
Monochrome, Color, or None
PROTOCOL
Analog, RS-232, RS-485, or Modbus RTU
CONNECTOR
MD8, Locking Industrial, DB9M, DB15
FITTINGS
NPT

METER RANGES

2 SCCM – 500SLPM

CONTROLLER RANGES

2 SCCM – 100SLPM

Service and Support

Whether it is time for your instrument’s annual recalibration or your instrument needs a repair or upgrade,
you can fill out the Service Request Form below, email us, call us, or start a live chat session to get the service process started.

7641 N Business Park Dr. Tucson, AZ 85743

service@alicat.com

+1(888)290-6060

FastTrack Ordering

M/MC mass flow meters and controllers that ship in just 3-5 business days.
CALIBRATION
Standard or High Accuracy
DISPLAY
Monochrome, Color, or None
PROTOCOL
Analog, RS-232, RS-485, or Modbus RTU
CONNECTOR
MD8, Locking Industrial, DB9M, DB15
FITTINGS
NPT

METER RANGES

2 SCCM - 500SLPM

CONTROLLER RANGES

2 SCCM - 100SLPM

Service and Support

Whether it is time for your instrument’s annual recalibration or your instrument needs a repair or upgrade,
you can fill out the Service Request Form below, email us, call us, or start a live chat session to get the service process started.

7641 N Business Park Dr. Tucson, AZ 85743

service@alicat.com

+1(888)290-6060