--- product_id: 6585042 title: "1798828 Model 334A Loop Calibrator, 4-20 mA Process Control Loop" brand: "altek" price: "5033 zł" currency: PLN in_stock: true reviews_count: 2 category: "Altek" url: https://www.desertcart.pl/products/6585042-1798828-model-334a-loop-calibrator-4-20-ma-process-control store_origin: PL region: Poland --- # ±0.03% accuracy Dual current ranges with % & mA display Simulates & powers 2-wire transmitters 1798828 Model 334A Loop Calibrator, 4-20 mA Process Control Loop **Brand:** altek **Price:** 5033 zł **Availability:** ✅ In Stock ## Summary > ⚙️ Master your process loop like a pro—calibrate with confidence, every time. ## Quick Answers - **What is this?** 1798828 Model 334A Loop Calibrator, 4-20 mA Process Control Loop by altek - **How much does it cost?** 5033 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/6585042-1798828-model-334a-loop-calibrator-4-20-ma-process-control) ## Best For - altek enthusiasts ## Why This Product - Trusted altek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Controller Backup Mode:** Keep your process running smoothly by substituting the calibrator when controllers are offline—never miss a beat. - • **All-in-One Loop Mastery:** Simulate, power, and measure two-wire transmitters seamlessly—streamline your workflow with one compact tool. - • **Dual Display, Double Clarity:** Switch effortlessly between milliamps and percentage readings for instant, intuitive diagnostics. - • **Bench-Top Accuracy, Toolbox Ready:** Portable yet precise, this calibrator ensures fast, reliable setup for controllers, recorders, and final control elements. - • **Precision that Powers Performance:** Achieve ultra-accurate calibration with ±0.03% precision—because your process control deserves nothing less. ## Overview The Altek Model 334A Loop Calibrator is a versatile, high-precision instrument designed for 4-20 mA process control loops. It combines transmitter simulation, power supply, and measurement functions into one compact device, offering ±0.03% accuracy and dual current range displays. Ideal for troubleshooting, calibration, and temporary controller replacement, it ensures reliable, efficient process control management. ## Description Altek Model 334A Loop Calibrator has been designed to check, calibrate, and troubleshoot all the signals present within a standard 4 to 20 milliamp process control loop. A 24 mA source, mA meter, Two wire transmitter simulator, and a DC volt meter are combined into one easy-to-operate instrument. Dual current ranges allow display of each current function in percent of 4 to 20 mA signal, as well as directly in milliamps. Power and measure two wire transmitters simultaneously in Source Mode. The Altek model 334A supplies the required voltage and displays the current as regulated by the 2-wire transmitter. The Model 334A may also be used when a controller is temporarily removed for repair or replacement. Simply substitute the Model 334A for the controller and use it as a manual loading station. Bench-top accuracy in a toolbox calibrator assures fast, precise setting of current trips, recorders, controllers, loggers, computers, and final control elements. Review: arrived in very used condition - I haven't tested this unit yet, but one of the clips are bent, this really looks used and dirty/scratched . I bought it as Used but it was advertised as like new and this is defiantly not that. I am hoping it is working like it is suppose to. Review: It's a classic for a reason- easy to use - It's a classic for a reason- easy to use, works great. ## Features - Simulates two-wire transmitters - Read milliamp outputs - Power & Measure two-wire transmitters - Read DC Volts to check loop power supplies - Accuracy to ±0.03% ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00D398LJW | | Best Sellers Rank | #176,399 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Process Controllers | | Date First Available | January 30, 2011 | | Item Weight | 1.76 pounds | | Item model number | 334A | | Manufacturer | Altek Corporation | | Product Dimensions | 12.28 x 9.41 x 4.8 inches | ## Images ![1798828 Model 334A Loop Calibrator, 4-20 mA Process Control Loop - Image 1](https://m.media-amazon.com/images/I/81q4Ppt9KmL.jpg) ![1798828 Model 334A Loop Calibrator, 4-20 mA Process Control Loop - Image 2](https://m.media-amazon.com/images/I/81cu6p7KvTL.jpg) ## Questions & Answers **Q: Is the case included ?** A: It comes in a black soft zippered case yes ## Customer Reviews ### ⭐⭐ arrived in very used condition *by A***R on September 25, 2023* I haven't tested this unit yet, but one of the clips are bent, this really looks used and dirty/scratched . I bought it as Used but it was advertised as like new and this is defiantly not that. I am hoping it is working like it is suppose to. ### ⭐⭐⭐⭐⭐ It's a classic for a reason- easy to use *by S***Y on November 16, 2014* It's a classic for a reason- easy to use, works great. ## Frequently Bought Together - Altek 1798828 Model 334A Loop Calibrator, 4-20 mA Process Control Loop - Gaffer Power Spike Tape | Proudly Made in The USA Gaffer Tape | 5 Bright Colors - Gaffer Power Proudly Made in The USA, Real Professional Grade Gaffer Tape, Heavy Duty Gaffers Tape, Non-Reflective, Multipurpose. 2 Inches x 30 Yards, Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/6585042-1798828-model-334a-loop-calibrator-4-20-ma-process-control](https://www.desertcart.pl/products/6585042-1798828-model-334a-loop-calibrator-4-20-ma-process-control) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-25*