Schneider 140AIO33000 Intrinsic Safe Analog Output

Schneider Electric 140AIO33000 Intrinsically Safe Analog Output Module

Eight Channels for Hazardous Area Control

The 140AIO33000 belongs to the Modicon Quantum family. It drives analog actuators like I/P converters, valve positioners, and chart recorders. This module gives you 8 isolated outputs in one slot. You can use it in Zone 20, 21, or 22 dust environments.

Several output ranges are available. Choose 0-20mA, 0-25mA, or 4-20mA. For the 4-20mA range, you get 15-bit resolution with two scaling options. First, 0 to 16000 points. Second, 0 to 4095 points. This flexibility matches most field instruments.

Accuracy stands at ±0.2% of full scale at 25°C. Furthermore, linearity reaches ±1 LSB. Therefore, your control loops stay precise. Maximum loop resistance is 500 Ohms. That value supports long cable runs.

Thermal Stability and Drift Control

Temperature changes affect analog circuits. The 140AIO33000 limits accuracy drift to 40 ppm/°C (typical). Even at 70 ppm/°C maximum, performance remains reliable. Operating temperature ranges from 0°C to 60°C. Storage from -40°C to 85°C.

Additionally, the module dissipates 12.5W of power. Bus current requirement is 2.5A. Always verify your power supply capacity before installation.

Fast Response for Real-Time Control

Update time is only 4 ms. Setting time reaches 1 ms to ±0.1% of final value. Consequently, this Schneider 140AIO33000 suits fast-acting loops. For instance, pressure control or flow regulation.

The module also detects open circuits on 4-20mA loops. This fault detection helps with diagnostics. An internal fuse protects against overcurrent. However, hot swapping is not allowed. Intrinsic safety standards prohibit removal or insertion while powered.

Isolation and Safety Certifications

Channel-to-bus isolation reaches 1780 Vrms for 60 seconds. This high rating protects the backplane from field wiring faults. Markings include CE and II 1 G/D-EEx ia IIC.

Key certifications:

• ATEX 94/9/EC (SIRA 02ATEX2345X)

• FM Class 1 Division 2

• CSA C22.2 No 142

• UL 508

• C-Tick

Thus, the 140AIO33000 works in hazardous locations. Group A, B, C, D are approved. Dust zones are outside the module itself.

Installation and Mounting

Mounting is rack-based, standard for Quantum. First, insert the module into any available slot. Next, connect your 4-20mA or 0-20mA field wiring. Use shielded cables for best noise immunity. Finally, configure the output ranges inside Unity Pro, Concept V2.2+, or ProWORX.

Operating altitude reaches 5000 meters. Relative humidity tolerance is 95% without condensation. ESD resistance hits 4 kV contact and 8 kV air. Electromagnetic field resistance is 10 V/m from 80-2000 MHz.

Package and Shipping

Each 140AIO33000 ships individually. The package contains:

• One intrinsically safe analog output module

• Terminal block connector (removable)

• Slot filler cover

• Quick start guide

Note: No ATEX certificates or warranty papers are inside the box. Contact your distributor for compliance documentation.

Shipping partners are FedEx, UPS, and DHL. Tracking numbers are provided for all orders.

Packaging List

• 140AIO33000 module (8 analog outputs, intrinsically safe)

• Removable screw terminal block

• Rack slot filler cover

• Installation quick guide

Frequently Asked Questions

1. Can I use the 140AIO33000 with 0-10V actuators?
No, this module only provides current outputs (0-20mA, 4-20mA, 0-25mA). For voltage outputs, select a different Quantum module.

2. Why is hot swapping not allowed?
Intrinsic safety standards prohibit live removal. The Schneider 140AIO33000 must be installed in a de-energized rack. Otherwise, spark risks increase in hazardous areas.

3. What software versions support this module?
Unity Pro, Concept V2.2 and above, and ProWORX all support the 140AIO33000. Older Modsoft versions do not work.

4. How do I test an output channel?
Force a known value (e.g., 12mA) from your programming software. Then measure the actual current at the terminal block. The difference should stay within ±0.2% plus drift.

5. Can I mix the 140AIO33000 with non-intrinsically safe modules in the same rack?
Yes, but maintain physical separation. Keep IS wiring away from non-IS wires. Follow local hazardous area installation codes for barriers and labeling.