On eBay Now...
![]()
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The WATLOW 3508 (Eurotherm 3508) is a 1/4‑DIN advanced temperature and process controller from the Eurotherm 3500 family, used for precise multi-function process control in industrial applications.
What it isThe 3508 is part of the Eurotherm 3500 Advanced Temperature Controller and Programmer range (models 3504 and 3508) marketed by Watlow after acquiring Eurotherm.
It is designed to precisely control temperature and other process variables in demanding industrial environments such as heat treatment, semiconductor tools, environmental chambers, autoclaves, and reactors.
Control capability:
Up to 2 PID control loops with advanced auto-tuning and control strategies.
Up to 50 setpoint programs with as many as 500 total segments for ramp/soak profiling.
Inputs, outputs, and accuracy:
Supports multiple input types (thermocouples, RTD, mV, mA, volts) with process variable accuracy better than 0.1%.
Multiple analog and digital inputs/outputs (on the order of 5 analog in, 6 analog out, and around 40 digital I/O points depending on class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0\" style=\"box-sizing: border-box; border-width: 0px; border-style: solid; border-color: oklch(0.3039 0.04 213.68 / 0.16); scrollbar-color: initial; scrollbar-width: initial; --tw-border-spacing-x: 0; --tw-border-spacing-y: 0; --tw-translate-x: 0; --tw-translate-y: 0; --tw-rotate: 0; --tw-skew-x: 0; --tw-skew-y: 0; --tw-scale-x: 1; --tw-scale-y: 1; --tw-pan-x: ; --tw-pan-y: ; --tw-pinch-zoom: ; --tw-scroll-snap-strictness: proximity; --tw-gradient-from-position: ; --tw-gradient-via-position: ; --tw-gradient-to-position: ; --tw-ordinal: ; --tw-slashed-zero: ; --tw-numeric-figure: ; --tw-numeric-spacing: ; --tw-numeric-fraction: ; --tw-ring-inset: ; --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgb(59 130 246 / .5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; --tw-shadow: 0 0 #0000; --tw-shadow-colored: 0 0 #0000; --tw-blur: ; --tw-brightness: ; --tw-contrast: ; --tw-grayscale: ; --tw-hue-rotate: ; --tw-invert: ; --tw-saturate: ; --tw-sepia: ; --tw-drop-shadow: ; --tw-backdrop-blur: ; --tw-backdrop-brightness: ; --tw-backdrop-contrast: ; --tw-backdrop-grayscale: ; --tw-backdrop-hue-rotate: ; --tw-backdrop-invert: ; --tw-backdrop-opacity: ; --tw-backdrop-saturate: ; --tw-backdrop-sepia: ; --tw-contain-size: ; --tw-contain-layout: ; --tw-contain-paint: ; --tw-contain-style: ; margin-top: 0px; margin-bottom: 0px; padding-inline-start: 0.375em; padding-top: 0px; padding-bottom: 0px;\">
User interface and configuration:
4‑line alphanumeric display with a large main PV display and customizable operator pages for showing key parameters.
“Quick Start” menu for basic setup plus a PC-based graphical configuration tool that lets you connect functional blocks using “soft wiring.”
Advanced functions:
Built‑in maths, logic, timers, and counters for building complex control strategies without a PLC.
Recipe handling and setpoint programs suitable for batch or profile-based and integration
The 3508 supports several industrial communication protocols for integration into larger systems:
Modbus RTU (serial), Ethernet/Modbus TCP, Profibus DP, and DeviceNet, depending on module options.
It can act as a communications master in some configurations, allowing it to coordinate with other applications
Heat treatment furnaces and ovens needing multi‑segment temperature profiles and tight control.
Semiconductor and electronics processes, environmental test chambers, autoclaves, fermenters, and general process heating where precise temperature trajectories and logging are important.
*** OLD_TITLE: Watlow 3508 PROCESS Controller BRAND NEW ***
*** SHELF: 46 ***

TESTED Eurotherm 3508 Temperature Controller
$219.00
Eurotherm 3508 Process Controller Semiconductor Tools Systems Components NEW
$370.00
Eurotherm 3508 Temperature Controller 3508 CCE VH 2 XX 1 8 60 G D4 R4AM Y2 XX XX
$299.00
![]()
Popular Tutorials
Alarms and Indicator Circuit diagrams