Product details
Product Overview
Meet the IFM204 inductive sensor from ifm. It belongs to the IF series. This sensor offers a 7 mm extended sensing range in a stainless steel M12 housing. It carries E1 type approval for mobile machines. The order code is IFKC007-ASKG/V4A/US-104.
Use it for non-flush mounting. The stainless steel 316L body resists harsh conditions. The white LCP sensing face supports reliable detection. Two lock nuts come in the box for quick setup.
Key Technical Data
- Brand: ifm
- Model: IFM204
- Series: IF inductive sensor
- Module type: Inductive proximity switch
- Sensing range: 7 mm nominal; real Sr 7 mm ±10%; operating distance 0 to 5.67 mm
- Switching frequency: 300 Hz
- Sensitivity: fixed per inductive principle; correction factor steel 1, stainless steel 0.7, brass 0.5, aluminium 0.4, copper 0.3
- Linearity: switch point drift -10 to 10% of Sr; hysteresis 1 to 20% of Sr
- Resolution: not published by manufacturer for this standard proximity switch
- Temperature range: -40 to 85 °C operating
- Environmental resistance: IP 67 and IP 69K; salt spray EN 60068-2-52 Kb level 5; fast temperature change EN 60068-2-14 Na
- Interference immunity: E1 type approval per ECE R10; reverse polarity protection; short-circuit and overload protection
- Supply voltage: 10 to 36 V DC nominal
- Current consumption: less than 10 mA typical
- Output: 1 x PNP/NPN normally open; max voltage drop 2.5 V DC; permanent current rating 100 mA; min load current 2 mA
- Housing: M12 x 1 threaded, length 70 mm; stainless steel 316L/1.4404; sensing face LCP white
- Mounting: non-flush mountable; tightening torque 15 Nm
- Electrical connection: 1 x M12 A-coded connector, 3 gold-plated contacts
- Display: 4 x 90° yellow LED for switching status
- Weight: 29.7 g
- Protection class: II
Installation Guide
- Use the two lock nuts supplied to fix the sensor.
- Keep a non-flush mounting position. Avoid metal close to the sensing face.
- Tighten to 15 Nm. Do not over-torque.
- Connect the M12 A-coded plug. Match the 3 gold-plated contacts correctly.
- Check the 4 yellow LEDs for switching status after power-up.
Setup and Maintenance
- Apply 10 to 36 V DC. Reverse polarity protection is built in.
- Keep load current between 2 mA and 100 mA.
- Use the 300 Hz switching frequency for fast cycle tasks.
- Clean the white LCP face with a soft cloth. Avoid abrasive tools.
- The IP 69K rating supports high-pressure washdown.
- No routine calibration is needed. The sensor is factory set.
Compatibility Notes
- Works with steel targets at full 7 mm range.
- For stainless steel, apply factor 0.7 to the range.
- For brass, use factor 0.5. For aluminium, use factor 0.4. For copper, use factor 0.3.
- Fits standard M12 x 1 threaded mounts.
- Accepts common M12 A-coded cordsets.
Certifications
- E1 type approval per ECE R10 (Kraftfahrt-Bundesamt) for mobile machines.
- UL approval no. A051, file E174191 (Ta 0 to 40 °C, Type 1).
- IP 67 and IP 69K protection ratings.
- Salt spray test per EN 60068-2-52 Kb level 5.
- Fast temperature change test per EN 60068-2-14 Na.
- MTTF 1253 years.
Package Contents
- 1 x IFM204 inductive sensor
- 2 x lock nuts (brass, white bronze coated)
FAQ
Q: Can this sensor detect aluminium targets at 7 mm?
A: No. Aluminium has a correction factor of 0.4. Expect about 2.8 mm sensing range on aluminium.
Q: Does the IFM204 work on 24 V DC mobile systems?
A: Yes. It accepts 10 to 36 V DC. The E1 approval supports mobile machine use.
Q: What is the real switching distance tolerance in practice?
A: The real sensing range is 7 mm ±10%. Switch point drift stays within -10 to 10% of Sr.
Q: How do I know the output is active?
A: The yellow LEDs show switching status from four sides. They are visible at 90° angles.
Q: Can I mount it flush in metal?
A: No. This model is non-flush mountable. Keep metal away from the sensing face.
Q: Is a separate amplifier needed?
A: No. The sensor has a built-in PNP/NPN normally open output. Connect it directly to your input card.
Q: What spare part should I keep on hand?
A: Keep an extra M12 A-coded cordset. Also keep the two lock nuts for fast replacement.
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