The ALA5 is an ATEX approved strain gauge/load cell amplifier designed for operation within hazardous zones 0,1 & 2.

The high performance amplifier provides 2-wire 4-20mA current loop output and connects in-line for a range of signal conditioning for strain gauges, load cells, pressure and torque transducers. Intrinsically safe to EN60079-11 (previously EN 50020) standards.

The device can be connected to ATEX approved equipment within the hazardous zone or to non-approved ATEX equipment outside the hazardous zone provided that a suitable barrier is used.

Designed for fitting in-line to strain gauge sensors such as load cells, the amplifier is housed within a stainless steel IP67 NEMA 4 EMC protected enclosure and is supplied with 1m strain gauge cable and 5m output cable.

An OEM option is available for customers wishing to embed the ATEX amplifier within the sensor. Please note: the ICA5ATEX is approved for incorporation into load cells and other enclosures. Please contact us to discuss your requirements.

Evaluation units now available for trial and evaluation at low cost. Click Buy Now! Tab Above to request more information.

• High performance amplifier certified for ATEX Hazardous Zones 0, 1 & 2
• Designed for fitting in-line to strain gauge sensors such as load cells
• Intrinsically Safe to EN60079-11
• Environmentally sealed to IP67
• Provides 2-wire 4-20mA current loop output
• Fast calibration via gain and offset trim
• Bridge impedance min 350 Ohms max 5000 Ohms
• Wide temperature range -40C to +85C
• Supplied with 1m strain gauge cable and 5m output cable
• Robust design, reverse polarity & short circuit protected
• OEM option available

• ALA5 Product Sheet
• ALA5 & ICA5ATEX Manual (word doc)

• No Relevant Documents Available

Q: What Strain Gauge parameters is the ALA5 designed for?

A: Designed for a 1k bridge, however, 350R can be used at the expense of noise and drift performance due to the reduced excitation voltage on the bridge. It is factory set for 2.5mV/V.

Q: What do the ATEX markings mean?

II 1 G Ex ia IIC T4
Tamb = -40°C to +85°C
CE0891 TRAC09ATEX1xxxX

ATEX Marking details
	Explosion protection
II	Equipment group: industrial
1	Equipment category: very high protection
G	Hazard: gas atmosphere - zones 0,1 and 2
Certification Code details
Ex	Explosion protection
ia	Intrinsic safety according to EN60079-11 (previously EN 50020)
IIC	Hydrogen/Acetylene gas group
T4	Temperature Classification – surface temperature <135°C

Q: Are there different mV/V settings available?

A: The sensitivity can be set between 0.5 mV/V and 55 mV/V by changing the SPAN (gain) resistor. Please enquire with our Sales team for more info.

Q: Can I extend the output cable on the ALA5?

A: Yes by use of an ATEX approved junction box.
Please note: The total cable capacitance must be taken into account and must not exceed TBD pF (pico farads).

Q: What is the maximum cable length for the load cell connections?

A: Maximum is 2 metres.

Q: Is a barrier needed for Zones 1 and 2?

A: Yes, a barrier is needed for all ATEX installations. Please contact us for more information.

Q: Can I embed the OEM device into my own loadcell?

A: Yes, the ICA5ATEX amplifier is designed to fit into a pocket in a certified loadcell.
Please note: OEM customers must hold a notified body Quality Assurance Notification (QAN) and ensure that the load cell and amplifier assembly is submitted for ATEX certification by an appropriate body.

ATEX Intrinsically Safe
ICA5ATEX 4-20mA 2 wire

The ATEX miniature load cell signal conditioner offers a high performance strain gauge amplifier in miniature format, designed specifically for fitting inside load cells, converting a standard load cell to a mA output.

Offering high stability and fast response.

Optional (ILE) in line enclosure to convert a standard load cell to a conditioned load cell output

ICA (models ICA1 - ICA6 S & H)

• ATEX certificated strain gauge conditioner and load cell amplifier
• Miniature PCB format for fitting inside sensors, 19mm diameter, 7.6mm height
• 2 wire current loop 4-20mA output
• Low interaction between the trimmers makes calibration fast and easy
• High speed 1000 Hz
• User selectable span and zero resistors
• Robust design, high noise immunity & reverse polarity protected
• Option of an in-line enclosure (shown on thumbnail image)

FR=Full Range (16mA)

Note 1: 1000 Ohm load cell – Typically 0.53V for 350 Ohm cell
Note 2: Set by calibration resistor
Note 3: Limited by the 300Ω barrier impedance
Note 4: 1000 Ohms load cell – change R1 to suit other load cell impedances.

Note: Recommended bridge impedance is 1,000 Ohms

Note: The voltage between either of the power supply connections and the load cell shield should not exceed 50V. Any leakage will be greater than 10M Ohms.

• ALA5 Product Sheet
• ALA5 & ICA5ATEX Manual (word doc)

• No Relevant Documents Available

Q: What do the ATEX markings mean?

II 1 G Ex ia IIC T4
Tamb = -40°C to +85°C
CE0891 TRAC09ATEX1xxxX

ATEX Marking details
	Explosion protection
II	Equipment group: industrial
1	Equipment category: very high protection
G	Hazard: gas atmosphere - zones 0,1 and 2
Certification Code details
Ex	Explosion protection
ia	Intrinsic safety according to EN60079-11 (previously EN 50020)
IIC	Hydrogen/Acetylene gas group
T4	Temperature Classification – surface temperature <135°C

Q: Is a barrier needed for Zones 1 and 2?

A: Yes, a barrier is needed for all ATEX installations. Please contact us for more information.

Q: Can I embed the OEM device into my own loadcell?

A: Yes, the ICA5ATEX amplifier is designed to fit into a pocket in a certified loadcell.
Please note: OEM customers must hold a notified body Quality Assurance Notification (QAN) and ensure that the load cell and amplifier assembly is submitted for ATEX certification by an appropriate body.

Q: Are there different mV/V settings available?

A: The sensitivity can be set between 0.5 mV/V and 55 mV/V by changing the SPAN (gain) resistor. Please enquire with our Sales team for more info.

Q: Can I extend the output cable on the ALA5?

A: Yes by use of an ATEX approved junction box.
Please note: The total cable capacitance must be taken into account and must not exceed TBD pF (pico farads).

Q: What is the maximum cable length for the load cell connections?

A: Maximum is 2 metres.

Q: What Strain Gauge parameters is the ALA5 designed for?

A: Designed for a 1k bridge, however, 350R can be used at the expense of noise and drift performance due to the reduced excitation voltage on the bridge. It is factory set for 2.5mV/V.