Product Overview
A 4-20 mA Analog Output Module for an Opto 22 G4 Rack
Condition
Graded New and sold each. We hold more than one of these, so the module in the photos is representative of the stock rather than a portrait of the exact piece that ships. The two faces shown are clean white plastic with crisp printing. The label face carries the Opto 22 triangle logo, OPTO 22, 4-20 MA OUTPUT, a CE mark and G4 DA3, plus the head of a captive hold-down screw. The housing also carries 200% TESTED 0596 with 8359 printed below it in magenta ink. The pin side shows two rows of pins, one row of gold-colored round pins and one row of flat bright-metal pins, all standing straight in the photos, with the threaded end of the captive screw between them.
Same or next business day shipping from our Idaho warehouse. Honest pricing, no nonsense.
Online since 1999. We are here for our customers, with a no-hassle satisfaction guarantee.
Product Overview
The Opto 22 G4 DA3 is a plug-in analog output module from the G4 family. Its own label face reads OPTO 22, 4-20 MA OUTPUT, G4 DA3, alongside a CE mark. G4 modules are plug-in units that seat into an Opto 22 G4 analog rack, which is what the two pin rows on the underside are for, and the captive screw that passes through the body holds the module down once it is seated. Working strictly from the part in front of the camera, the confirmed identity is Opto 22, G4 DA3, 4-20 mA analog output, CE marked, with 200% TESTED 0596 and 8359 printed on the white housing. Output channel count, loop supply voltage, maximum load resistance, resolution and isolation rating are not printed on either face shown in the photos. Not confirmed - verify against the Opto 22 datasheet before use. One module is the sale unit; no rack, base, wiring or mounting hardware beyond the module's own captive screw is included.
Key Features
- Marked OPTO 22 and G4 DA3 on the label face, with the Opto 22 triangle logo
- Marked 4-20 MA OUTPUT - an analog current-loop output module
- CE mark printed on the label face
- Captive hold-down screw through the body, head on the label face, threaded end on the pin side
- Two rows of pins on the underside: one row gold-colored and round, one row flat and bright metal
- 200% TESTED 0596 and 8359 printed on the housing in magenta ink
- Condition New, sold each; the photographed module is representative of our stock
- Output channel count, loop supply, load resistance, resolution and isolation ratings: Not confirmed - verify against the Opto 22 datasheet before use
Applications
- A plant maintenance tech with a G4 rack that is one analog output short after a channel went quiet, who needs the same G4 DA3 rather than a redesign
- An integrator finishing an Opto 22 G4 brick and adding a 4-20 mA command output for a valve positioner or a drive speed reference
- A controls engineer keeping a documented legacy G4 panel exactly as drawn, matching the module number on the print instead of adapting to a newer family
- A bench setup where an existing G4 rack is used to exercise a 4-20 mA loop device before it goes back into the field
Frequently Asked Questions
What does the G4 DA3 actually do?
It is the analog output side of an Opto 22 G4 rack. The marking on its own label face reads 4-20 MA OUTPUT, so it takes the command from the rack and puts it out as a 4-20 mA current loop signal to whatever the panel is driving.
What are the numbers printed on the housing?
The magenta printing reads 200% TESTED 0596 on one line and 8359 below it. Those are factory markings on the module. We are quoting them exactly as printed rather than decoding them, because the meaning of the number groups is not confirmed here.
Does this come with a rack or mounting base?
No. The sale unit is the module by itself, sold each. The captive hold-down screw is part of the module and is visible in the photos; the G4 rack it seats into is not included and is not part of this listing.
Which specifications should I verify before ordering?
Output channel count, loop supply voltage, maximum load resistance, output resolution and isolation rating are not printed on either face shown here, so treat them as Not confirmed and check them against the Opto 22 datasheet for the G4 DA3 before you commit the module to a design.
Why buy this one module instead of chasing a surplus lot of G4 parts?
Because you get one photographed G4 DA3, described from its own markings, in the count you actually need - not a mystery tray of mixed G4 modules where half the label faces say something else and you sort them yourself. Shipping is a flat $8 per order, free once your order passes $28, and orders leave our Idaho warehouse the same or next business day.
The magenta 200% TESTED 0596 stamp is a factory marking we quote as printed, not a test we ran here. If your G4 rack is short a 4-20 mA output, this is the small white block marked for the job.
