Schlumberger IMT4N Multi‑function Timer Relay
The Schlumberger IMT4N is a versatile timer relay designed for industrial control applications. It accepts a wide supply voltage range (24‑250 VAC or 48‑230 VAC) and offers multiple timing functions, making it suitable for interfacing with PLC outputs to control timed operations such as delays, pulses, and cycling.
Supply Voltage and Consumption
Input voltage: AC 24‑250 V (50/60 Hz) and DC 24‑220 V (auto‑ranging). Power consumption: < 5 VA (AC) or < 2 W (DC). The wide range allows connection to various PLC power supplies or direct line voltage.
Timing Functions
Selectable functions via DIP switches: On‑delay, Off‑delay, Pulse (one‑shot), Flashing (symmetrical/asymmetrical), and Interval. Time ranges: 0.1 s to 100 h (selectable by decade and potentiometer). Accuracy: ±1% of setting.
Output Contacts
One changeover relay (SPDT) rated 8 A at 250 VAC (resistive). Mechanical life: 10 million operations; electrical life: 100,000 at rated load.
Control Inputs
External trigger input (start/reset) can be activated by a PLC transistor output (24 VDC) or dry contact. The timer also has a reset input.
Environmental and Mechanical Data
Housing: polycarbonate, UL 94 V‑0. Mounting: DIN rail (35 mm) or panel. Dimensions: 75 mm × 22.5 mm × 110 mm (H×W×D). Operating temperature: ‑10 to +60°C, storage: ‑40 to +85°C. Protection: IP20.
Diagnostic and Status
Green LED for power and timing status. Red LED for output activation.
Applications
Used in conveyor control, pump sequencing, lighting control, and machinery safety delays. Directly triggered by PLC outputs for precise timing.
Installation and Wiring
Terminals accept solid/stranded wires up to 2.5 mm². Follow wiring diagram for supply, trigger, and output connections.
Maintenance
No adjustment required; replace if faulty. Periodic check of terminal tightness.
Certifications
CE approved. Complies with EN 61812‑1 and EN 61000‑6‑2/‑4.
In summary, the Schlumberger IMT4N timer relay offers flexible timing solutions with wide voltage compatibility, ideal for PLC‑based control systems requiring reliable time delays.
