Technical Specifications
| Parameter | Specification |
|---|---|
| Model | NFAF135‑S50 |
| Type | Frequency Input Module (8 channels, isolated) |
| Number of Channels | 8 |
| Frequency Input Range | 0.01 Hz to 1000 kHz |
| Accuracy | ±0.01% of reading |
| Input Signal Range | 0.01 V to 10 V |
| Sampling Rate | 10 kHz |
| Power Supply | 24 V DC, 20 mA |
| Operating Temperature | –20 °C to +60 °C |
| External Dimensions | Width ≈ 482 mm × Height ≈ 210 mm × Depth ≈ 220 mm |
| Weight | Approx. 1.0 kg |
FAQ
Q1: What does the model code “‑S50” in NFAF135‑S50 mean?
A1: The suffix “S50” denotes a standard version of the NFAF135 frequency input module, with standard features (no explosion‑proof option) and base configuration.
Q2: What kind of signals can the NFAF135‑S50 accept?
A2: It can accept voltage pulses in the range 0.01 V to 10 V, over a frequency range from 0.01 Hz up to 1000 kHz.
Q3: What are the physical size and weight of this module?
A3: The module’s external dimensions are approximately 482 mm width × 210 mm height × 220 mm depth, and it weighs about 1.0 kg.
Q4: What is the accuracy of the frequency measurement?
A4: The accuracy is specified at ±0.01% of the reading, meaning very precise measurement capability.
Q5: How many input channels does the module have?
A5: It supports 8 isolated input channels, making it useful for multi‑sensor frequency measurement.
Q6: What power supply does this module require?
A6: It operates on 24 V DC and consumes approximately 20 mA under typical conditions.
Q7: Is this module suitable for industrial automation control systems?
A7: Yes — given its wide frequency measurement range, high accuracy, isolated channels and rack‑mountable form‑factor, it is designed for industrial process control applications.
Q8: What environment ratings does this module support?
A8: It supports an operating temperature range from –20 °C up to +60 °C and is built to handle industrial automation environments.
