OPTO22 SNAP-AIMA-4
OPTO22 SNAP-AIMA-4
OPTO22 SNAP-AIMA-4
OPTO22 SNAP-AIMA-4
OPTO22 SNAP-AIMA-4
OPTO22 SNAP-AIMA-4
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SNAP-AIMA-4

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Opto 22 SNAP-AIMA-4 is a four-channel isolated analog current input module measuring −20 to +20 mA for SNAP PAC I/O systems.
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Technical specifications for SNAP-AIMA-4

  • Manufacturer:
    OPTO22
  • Part Number:
    SNAP-AIMA-4
  • Product Family:
    SNAP Analog Input Modules
  • Product Type:
    SNAP four-channel analog current input module
  • Stock:
    1
  • Module family:
    SNAP analog input module
  • Channels:
    4
  • Input signal:
    Analog current
  • Input range:
    −20 to +20 mA
  • Resolution:
    0.8 µA
  • Overrange:
    −22 to +22 mA
  • Input response:
    99.9% of 19.9 mA in 10 ms
  • Data freshness:
    Maximum 23 ms
  • Common-mode rejection:
    Greater than −120 dB DC and at 60 Hz AC
  • Maximum survivable input:
    36 mA or 9 VDC
  • Operating common-mode voltage:
    250 V maximum
  • Accuracy:
    0.05% / 10 µA
  • Gain temperature coefficient:
    30 ppm/°C
  • Offset temperature coefficient:
    15 ppm/°C
  • Input resistance:
    200 ohms per channel
  • Power supply:
    5 VDC ±0.15 V
  • Current draw:
    170 mA
  • Operating temperature:
    −20 to 70 °C
  • Storage temperature:
    −40 to 85 °C
  • Humidity:
    5–95% non-condensing
  • Wire range:
    22–14 AWG
  • Hold-down torque:
    1 in-lb maximum
  • Connector screw torque:
    5.22 in-lb
  • Approvals:
    UL, CE, RoHS, DFARS, UKCA; ATEX for SNAP-AIMA-4
  • Tariff Code:
    Please confirm the destination before shipping.
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Applications Communication Diagnostics Temperature

Features:

  • Four isolated current-input channels cover −20 to +20 mA signals.
  • 0.8 µA resolution and 23 ms maximum freshness support responsive acquisition.
  • SNAP PAC mounting and configuration provide a compact I/O path.
Opto 22 SNAP-AIMA-4 is supplied for four-channel current-loop acquisition in a SNAP PAC control or monitoring system.

Its isolated channels convert bipolar loop signals into controller data while maintaining the common-mode and survival limits specified for the module.

Select the SNAP mounting position, shielded conductors and controller configuration together; field wiring must respect the input polarity and torque limits.

The SNAP-AIMA-4 is an Opto 22 analog input module; Apter Power supports sourcing, documentation and configuration checks.
Verified resources for Opto 22 SNAP-AIMA-4: Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Analog current-loop measurement in SNAP PAC control nodes.
  • Process-variable acquisition for supervisory monitoring points.
  • Four-channel field input expansion where isolated loops are required.
  • The module plugs into compatible SNAP I/O mounting and PAC controller hardware.
  • Four channels share the SNAP system data path while remaining input-isolated.
  • Controller configuration must use the SNAP-AIMA-4 module definition.
  • Input protection supports a maximum survivable signal of 36 mA or 9 VDC.
  • Common-mode operation is limited to 250 V maximum.
  • Shielding and correct loop polarity help prevent invalid current readings.
  • Operating ambient is specified from −20 to 70 °C.
  • Storage ambient is specified from −40 to 85 °C.
  • Relative humidity is 5–95% non-condensing.
Description
OPTO22 SNAP-AIMA-4 is a four-channel SNAP analog input module for current signals from −20 to +20 mA. Each channel resolves 0.8 µA, accepts the published ±22 mA overrange and is intended for dense analog measurement in a SNAP I/O installation.

The module reports changing values with a 10 ms response at 19.9 mA and a maximum data-freshness interval of 23 ms. Common-mode rejection greater than −120 dB at DC and 60 Hz helps preserve measurement quality when field wiring is exposed to electrical noise.

A 5 VDC supply and 170 mA draw define the I/O power budget, while the 250 V maximum common-mode rating and 36 mA or 9 VDC survivable input limit guide protection planning. Check the wire range, terminal torque, thermal limits and required approvals before installing SNAP-AIMA-4.
Alternative Names
SNAP-AIMA-4 SNAPAIMA4 SNAP analog current input module Opto 22 SNAP-AIMA-4 SNAP four-channel ±20 mA input SNAP-AIMA4 module SNAP PAC analog input Opto22 SNAP AIMA 4
Technical notes
Before wiring Opto 22 SNAP-AIMA-4, verify the current-loop polarity, 36 mA survivable limit, common-mode voltage and SNAP connector torque.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What signal range does Opto 22 SNAP-AIMA-4 accept?
The four channels measure bipolar current from −20 to +20 mA.
How many analog loops can Opto 22 SNAP-AIMA-4 read?
The module provides four isolated current-input channels.
What is the data freshness of Opto 22 SNAP-AIMA-4?
The official specification lists a maximum data freshness of 23 ms.
What input protection limit applies to Opto 22 SNAP-AIMA-4?
A channel can survive up to 36 mA or 9 VDC; wiring must remain within the operating limits.
Which SNAP PAC hardware is compatible with Opto 22 SNAP-AIMA-4?
Use the module in a compatible SNAP I/O mounting and configure it through the associated SNAP PAC system.
What information is needed to quote Opto 22 SNAP-AIMA-4?
Send the full module number, channel quantity, PAC controller or rack, destination and documentation requirement.

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