TENSE ERV-08 Multi-Function Time Relay

The TENSE ERV-08 is a multi-function electronic time relay manufactured by TENSE Electronic DGK-04F of Turkey. It is suitable for various time-control applications in industrial automation, residential and commercial fields. It offers a wide timing range of 0.1 second to 100 Std., supports DIN-rail mounting, and features high reliability and ease of use.

1. Core Specifications Overview

2. Key Product Features

2.1 Wide Compatibility

Wide voltage design: Universal 12V-240V AC/DC power supply, compatible with most electrical systems worldwide.

Ultra-wide timing range: From 0.1 second to 100 Std., covering almost all industrial and civil time-control requirements.

Multi-range selection: 6 time range options, quick setting via rotary knob.

2.2 Hohe Präzision & Zuverlässigkeit

Quartz crystal oscillation: Provides extremely high timing accuracy, superior to conventional electromagnetic time relays.

Solid-state electronic design: No mechanical contact wear, lange lebensdauer, strong vibration and shock resistance.

Wide temperature operation: Adapts to industrial ambient temperature changes for stable performance under harsh conditions.

2.3 Einfache Bedienung & Installation

Dual-knob control: “Time Steps” knob for range selection, “t” knob for fine adjustment.

DIN-rail mounting: Standard 35mm DIN rail for fast installation and removal.

Clear indication: Power and output LEDs clearly show operating status.

3. Betriebsmodi & Anwendungen

3.1 Standard Operating Modes

1. On Delay: Contacts actuate after the set time delay when power is applied.
2. Off Delay: Contacts reset after the set time delay when power is removed (supported by ERV-08M).

3.2 Typical Application Areas

1. Industrielle Automatisierung: Sequential production line control, motor start delay, intermittent pump control.
2. Gebäudeelektrik: Lighting timer control, delayed ventilation, elevator door control.
3. HVAC-Systeme: Air conditioning compressor protection delay, fan timer operation, heat pump cycle control.
4. Water treatment: Alternating pump operation, filter backwash timer, sedimentation tank sludge discharge control.
5. Agricultural applications: Irrigation system timing, greenhouse ventilation and temperature control.
6. Model Differences & Variants

5. Verdrahtung & Operation Guide

5.1 Standard Terminals

5.2 Bedienungsschritte

1. Connect power (A1, A2) and load (1-2 oder 1-3).
2. Turn the “Time Steps” knob to select the time range (z.B., 10-minute range).
3. Turn the “t” knob to set the precise time value (0.1-10 times the range value).
4. Apply power; the time relay starts operating, and contacts actuate when the set time is reached.
5. Auswahl & Alternativen

6.1 Key Selection Parameters

1. Supply voltage: Choose according to on-site power (220V AC or 110V AC).
2. Timing range: Select appropriate range based on control requirements (0.1s-100h).
3. Contact rating: Ensure rated current ≥ load current (5A for resistive loads; derate for inductive loads).
4. Operating mode: Select on-delay or off-delay based on control logic (ERV-08M).

6.2 Recommended Alternatives

7. Operating Notes
8. Umfeld: Avoid installation in high-temperature, feucht, dusty or corrosive gas environments.
9. Load matching: Use surge suppressors for inductive loads (Motoren, Schütze) to prevent arc damage to contacts.
10. Verdrahtung: Ensure correct polarity and secure connections to avoid poor contact.
11. Genauigkeit: Ambient temperature may affect timing accuracy; best performance at room temperature (25℃).
12. Wartung: Regularly check LED status and contact condition for proper operation.

As a cost-effective multi-function time relay, the TENSE ERV-08 is widely used globally thanks to its wide voltage, wide timing range and high reliability. It is especially suitable for small and medium-sized automation systems and civil electrical control fields.