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Energetika-VDS TLU 1.0 Temperature Logging Unit

Temperature Control

Energetika-VDS TLU 1.0 Temperature Logging Unit

IEC 62056 Mode C temperature data logger with OBIS coding, 9356-record memory, programmable 1-60 min interval, 2-year battery-backed RTC, and PC support software.

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Overview

TLU 1.0 is a temperature logging unit built around an external -40 to +125 °C probe and a fully IEC 62056 Mode C compliant optical interface. Every reading carries an OBIS code, so any standards-compliant Hand-Held Unit or our Energetika-VDS Data Logger 1.0 PC software can pull data from the unit without proprietary glue. Standard memory holds 9356 records (6.5 days at 1-minute sampling, 65 days at 10 minutes); the extended-memory factory option doubles capacity to 18 712. Designed and built on our own line, with 2-year backup retention of the RTC and accumulation counter.

Key features

  • IEC 62056 Mode C compliant optical interface with OBIS codes
  • Cycling LCD: OBIS, current time, date, probe temp, log interval
  • W indicator at moment of recording, R during readout, G on service required
  • Companion Energetika-VDS Data Logger 1.0 PC software with Excel export
  • Field-replaceable lithium backup, 2-year shelf retention of RTC

Standards

  • IEC 62056 (Mode C, OBIS)

How it is used

Cold-chain, pharma cold storage, food retail, HVAC commissioning, and any application that requires standards-compliant temperature logging readable by any IEC 62056-2/HHU or PC. OBIS-coded readings let downstream BMS / SCADA integrate the log without proprietary translation.

How we build it

Built on our DDM Novastar line. SPR-45 prints SAC305 paste through a 120 µm stencil. LS60 places the metering controller, RTC crystal, lithium backup cell holder, character LCD glass connector, IR phototransistor and LED, and supply components under vision check. GF 120HC reflows at 245 °C. AOI on every joint. Probe wired as a separate harness with quick-connect.

Assembled on our in-house Novastar SMT line: SPR-45, LS60, GF-120HT.

Optical inspection and test

AOI inspects every board: controller IC pitch, RTC crystal alignment, LCD ZIF seating, IR LED orientation, and probe connector. Functional test at a partner test house: probe accuracy against a reference thermometer at three points across the range (-40, 25, +125 °C), optical readout verified against an IEC 62056 Mode C reference reader, log-interval and accumulation-counter behaviour verified across a power cycle.

Design specifications

Mechanical

Wall-mount enclosure 96.4 × 142.4 × 44.7 mm, mounting pitch 77 × 128 mm, external probe on quick-connect harness.

Electrical

220 V AC at 50 Hz, 3.4 V lithium backup, 2-year shelf retention of RTC and accumulation counter.

Environmental

Probe range -40 to +125 °C, accuracy ±0.5 °C.

Communication

IEC 62056 Protocol Mode C optical port, OBIS-coded readings, 9600,n,8,1 link. Companion Energetika-VDS Data Logger 1.0 / Temperature Logging Unit Support Software (Windows) for download, tabular and chart views, Excel export.

Specifications

Source voltage
220 V AC, 50 Hz
Probe temperature range
-40 to +125 °C
Temperature accuracy
±0.5 °C
Maximum recording cycle
9356 records (standard); 18 712 (extended option)
Recording interval
1 to 60 minutes (standard); 2 s to 1 min (extended option)
Backup supply
3.4 V lithium, 2 years
Optical communication
IEC 62056 Mode C, OBIS, 9600,n,8,1
Dimensions
96.4 × 142.4 × 44.7 mm
Mounting pitch
77 × 128 mm

Services used to build this

Relevant industries

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