OMRON K3TE Series Digital Panel Meters

Technical Dossier

Product Details And Specifications

OMRON K3TE Series: Comprehensive Module Range and Technical Overview

The OMRON K3TE series is a line of compact digital panel meters engineered for precision measurement and display of process variables in heavy industrial environments. Deployed across chemical processing plants, petroleum refineries, power generation facilities, and nuclear utility infrastructure, the K3TE series occupies a critical role in panel-level instrumentation where reliable real-time readout of voltage, current, temperature, and frequency is non-negotiable. Its DIN-rail-compatible form factor and broad input range compatibility have made it a standard specification in control panel builds across Asia-Pacific, Europe, and the Americas for over two decades. The K3TE-V315 specifically handles AC voltage measurement and remains one of the most widely installed variants in legacy SCADA and DCS panel assemblies.

The Evolution of K3TE Architecture

The K3TE series was introduced by OMRON as a successor to earlier analog panel instrumentation, providing digital readout accuracy in a compact 48×24mm front-panel footprint. Early variants focused on single-input DC voltage and current measurement. Subsequent revisions expanded the input range to cover AC voltage (V3xx), AC/DC current (A3xx), temperature via thermocouple and RTD (T3xx), frequency (F3xx), and process signal (4–20mA / 1–5V) inputs. The architecture relies on a dedicated A/D conversion front-end, a 3½ or 4-digit LED display, and configurable alarm relay outputs on select models. Compatibility across the K3TE range is governed by the input type suffix and power supply suffix — mixing incompatible variants in the same panel bus is a known integration risk in retrofit projects. As the K3TE series has entered its mature/end-of-life phase, OMRON's current recommended migration path is toward the K3HB and K3MA series for new installations. However, the installed base of K3TE units in operational facilities remains substantial, and direct replacement sourcing continues to be the primary maintenance strategy for facilities that cannot justify a full panel retrofit.

K3TE Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked models within the OMRON K3TE series, organized by input/function category. Each model is a discrete, independently orderable unit.

AC Voltage Input Models

• K3TE-V315: AC voltage input, 100–240VAC range, 3½-digit LED display, panel mount
• K3TE-V115: AC voltage input, 0–199.9V range, compact 48mm housing, single alarm output
• K3TE-V215: AC voltage input, 0–500V range, dual setpoint relay, DIN48 format
• K3TE-V415: AC voltage input, 0–600V range, high-range industrial panel meter

DC Voltage Input Models

• K3TE-VD115: DC voltage input, 0–199.9VDC, single relay alarm, 100–240VAC supply
• K3TE-VD215: DC voltage input, 0–500VDC, dual relay, panel-mount DIN format

AC/DC Current Input Models

• K3TE-A115: AC current input, 0–19.99A, external CT compatible, 3½-digit display
• K3TE-A215: AC current input, 0–199.9A, high-current range, relay alarm output
• K3TE-AD115: DC current input, 0–19.99A, shunt resistor input, single alarm
• K3TE-AD215: DC current input, 0–199.9A, dual setpoint, DIN48 housing

Temperature Input Models

• K3TE-T115: Thermocouple input (K/J type), –199 to +999°C range, 3½-digit LED
• K3TE-T215: RTD (Pt100) input, –199 to +600°C, dual alarm relay, panel mount
• K3TE-T315: Thermocouple input (K type), high-temperature range, single relay output

Frequency Input Models

• K3TE-F115: Frequency input, 10Hz–9999Hz range, 4-digit LED display, relay alarm
• K3TE-F215: Frequency/RPM input, pulse signal compatible, dual setpoint relay

Process Signal (4–20mA / 1–5V) Models

• K3TE-P115: 4–20mA process input, scalable display, single alarm relay, DIN48
• K3TE-P215: 1–5VDC process input, engineering unit scaling, dual relay output

Sourcing Hard-to-Find & Obsolete K3TE Parts

The K3TE series has been formally discontinued by OMRON for new production orders. Standard distribution channels no longer carry stock for the majority of K3TE variants, including the K3TE-V315. DriveKNMS maintains a dedicated inventory of new-old-stock (NOS) and reconditioned K3TE units sourced through verified industrial surplus and OEM channel partners. For facilities operating under long-term maintenance contracts — particularly in nuclear, petrochemical, and utility sectors where panel replacement is subject to regulatory approval cycles — DriveKNMS provides lifecycle extension support including unit-level replacement, functional equivalency documentation, and cross-reference to current OMRON K3HB/K3MA alternatives where direct substitution is not feasible. Procurement teams requiring traceability documentation, country-of-origin certificates, or batch test reports can request these at the time of order.

Quality Control for the K3TE Range

Each K3TE unit processed by DriveKNMS undergoes a structured functional verification protocol prior to dispatch. Testing covers: input signal injection across the full rated measurement range to verify A/D conversion linearity and display accuracy; alarm relay actuation testing at both setpoint thresholds; power supply input tolerance verification (85–264VAC where applicable); and front-panel display segment integrity check. For units with relay outputs, contact resistance and switching endurance are verified against OMRON's published specifications. Units that fail any test parameter are quarantined and not offered for sale. Test records are retained per unit serial number and are available upon request for regulated industry procurement.