Comeco – Official Distributor for INOR Process AB in Bulgaria

Temperature transmitters and signal conditioning for industrial automation – selection, configuration, and commissioning with engineering support from Comeco.

INOR Process AB (Sweden) designs and manufactures instruments for temperature measurement (RTD/TC/mV/Ω) and signal conversion/isolation for the process industry and OEM systems. The portfolio includes head-mounted and DIN-rail transmitters, HART solutions, as well as isolators/isolation transmitters for protecting measurement loops and controller inputs.

Application-based selection • Configuration (HART/NFC) • Loop check/commissioning • Documentation

RTD / TC / mV / Ω inputs

4–20 mA + HART

Diagnostics and monitoring

NFC / Bluetooth configuration

INOR Process AB – Focused on the Temperature Measurement Chain

INOR is a specialized manufacturer of temperature transmitters and signal interface modules designed for reliable operation in industrial environments. Their solutions cover the typical measurement chain: sensor → transmitter → 4–20 mA current loop (and/or HART) → PLC/DCS, as well as modules for galvanic isolation, mitigation of ground-loop effects, and input protection.

Temperature transmitters: IPAQ C (head-mounted), IPAQ R (DIN-rail)
Pt100 applications: IPAQ C202
Isolation/signal conditioning: IsoPAQ
Integration: 4–20 mA / HART, configuration (model-dependent) via NFC/Bluetooth
INOR Connect – configuration (model-dependent) via NFC/Bluetooth

Why INOR (through Comeco)?

Universal input flexibility and linearization

Support for Pt100/Pt1000, thermocouples (K, J, T…), mV and Ω (depending on the specific model), with options for range and characteristic configuration.

HART-based configuration and diagnostics

Ideal for systems requiring digital overlay, identification, diagnostics, and service.

Convenient on-site configuration (NFC/Bluetooth)

On selected models (e.g., IPAQ C330, IPAQ C530) — easier setup without a wired HART modem (model-/variant-dependent).

Signal integrity and galvanic isolation

IsoPAQ solutions for input protection, elimination of ground loops, and stable analog signals in noisy environments.

Core INOR product lines we supply and support

Used when: installed in the sensor/probe head, with a short path for the low-level sensor signal, and a 4–20 mA output (and/or HART).
Key models:
- IPAQ C530 – a universal transmitter with HART 7 and advanced capabilities (diagnostics/configuration; NFC/Bluetooth on certain variants).
- IPAQ C330 – focused on convenient mobile configuration (NFC/Bluetooth on certain variants) and universal inputs (model-dependent).
  Typical applications: retrofitting existing sensors, OEM temperature probes, process lines, heat exchangers, reactors.

Used when: centralized cabinet measurement, multi-channel installations, easy serviceability and accessibility.
Key model:
- IPAQ R530 – a universal HART transmitter, suitable for cabinet-based systems and installations requiring diagnostics/identification.
  Typical applications: PLC/DCS panels, cabinet-mounted measurement stations, OEM skid systems.

Used when: the application is Pt100-focused and a clear, straightforward configuration for RTD measurement is required.
Key model:
- IPAQ C202 – a Pt100 transmitter; suitable for standard industrial RTD applications (including features such as a runtime counter—useful for planned maintenance/calibration intervals, if utilized).

Used when: ground loops, differing potentials, noisy environments, input/output protection, and separation of “field” and “control” grounds are needed.
Solutions: isolators and isolation transmitters for analog signals (4–20 mA/voltage—model-dependent).
Typical applications: long cable runs, mixed systems, measurements near power equipment (VFDs/inverters), and low-level inputs to PLCs.

Engineering support and implementation in Bulgaria

Application-based selection – sensor (Pt100/TC), range, accuracy class, and conditions (EMC/noise, cable lengths, installation).
Parameterization and configuration – ranges, linearization, diagnostics, tags; HART/NFC setup depending on the model.
Commissioning and verification – loop check, current loop verification, measurement stability, diagnostics, documentation.
Service and support – spare models, replacements, operational guidance, and recommendations for calibration intervals.

Request a Quote / Technical Selection

Send your application parameters — we’ll recommend a specific model (e.g., C530/C330/R530/C202) and configuration.

Frequently Asked Questions

When should I choose a head-mounted transmitter (IPAQ C) instead of a DIN-rail transmitter (IPAQ R)?

A head-mounted unit (IPAQ C330/C530) is the best choice when you want the conversion as close to the sensor as possible. This converts the low-level RTD/TC (mV/Ω) signal to 4–20 mA right in the head, making it more immune to interference along the cable run. This is typical for temperature probes/heads, OEM sensors, and on-site retrofits.

A DIN-rail unit (IPAQ R530) is more suitable when you have a centralized cabinet, many measurement points, and you want servicing/replacement in the panel (easier access), often in PLC/DCS panels and measurement stations. The R530 is a universal HART transmitter for DIN rail, designed for high requirements in accuracy and reliability.

What do I need for HART configuration and diagnostics (e.g., C530 / R530)?

For HART models (e.g., IPAQ C530 and IPAQ R530) you typically have two engineering options:

HART modem/communicator + software → full access to parameters, tags, diagnostics, and status. The C530 is HART 7 and offers advanced diagnostics (device errors, sensor/wiring conditions, etc.).
With the IPAQ C530 (and some wireless variants), you can use NFC/Bluetooth for configuration/monitoring (convenient for on-site work and service), while HART remains available for integration and diagnostics in the control system.

Rule of thumb: if the customer has DCS/AMS/asset management, HART is almost always a plus for diagnostics and documentation.

I have “floating” readings/noise/ground loops — how does IsoPAQ help and when is it needed?

With long cable runs, differing ground potentials, proximity to VFDs/inverters, and general industrial noise, you’ll often encounter:

ground loops,
parasitic currents/voltages,
a “floating” zero signal and instability on 4–20 mA inputs.

In that case, galvanic isolation (e.g., IsoPAQ solutions) separates the “field” from the “control” side and breaks the path of parasitic currents, improving stability and protecting inputs. (Conceptually this is their main role; the specific IsoPAQ model is selected based on signal type and the required isolation.)

Pt100: 2/3/4-wire — what should I choose and how do cables affect it?

2-wire: simplest, but the cable resistance adds error → suitable only for short cables / lower accuracy requirements.
3-wire: the industrial standard — compensates for lead resistance provided the conductors are similar (length/cross-section).
4-wire: most accurate — virtually eliminates cable effects; used for high accuracy and/or long cable runs.

For Pt100-focused applications, the IPAQ C202 (per the datasheet) uses a 3-wire Pt100 connection and provides a temperature-linear 4–20 mA output.
For the universal C530/R530 (variant-dependent), you often have 2/3/4-wire options on the RTD inputs—convenient when retrofitting different installations.

Which model should I choose: C202 vs C330 vs C530 vs R530 (quick engineering rule)?

Pt100-only, standard RTD application + convenient maintenance/interval tracking → IPAQ C202 (Pt100, runtime counter).
Universal head-mounted + convenient mobile configuration (NFC/Bluetooth) → IPAQ C330.
Universal head-mounted + HART 7 + advanced diagnostics + NFC/Bluetooth → IPAQ C530.
Universal DIN-rail + HART (cabinet/panel) → IPAQ R530.
Explore the full product range on the official website – INOR