Name: 9905-971 Woodward Input Module new brand
Price: 2654 CNY
Availability: InStock

Description

1.9905-971 Technical Specifications

Power Supply Voltage: 12–24 Vdc (±10% tolerance)

Operating Temperature Range: -40 °C to +85 °C (-40 °F to +185 °F)

Storage Temperature Range: -55 °C to +105 °C (-67 °F to +221 °F)

Measurement Range: 0–10,000 rpm (rotational speed) / 10 Hz–167 Hz (frequency)

Accuracy: ±0.1% of full scale ±1 rpm (over operating temperature range)

Response Time: Maximum 50 ms (from speed change to output signal update)

Input Type: Hall effect sensor (compatible with ferrous targets)

Output Signal:

NPN open collector (default)

PNP open collector (configurable via internal jumper)

Signal level: 0–5 Vdc (logic compatible)

Protection Rating: IP67 (equivalent to NEMA 6)

EMC Compliance:

Radiated Emissions: EN 55011 Class B

Conducted Emissions: EN 55011 Class B

ESD Susceptibility: IEC 61000-4-2 (±8 kV contact, ±15 kV air)

Surge Immunity: IEC 61000-4-5 (±2 kV differential, ±4 kV common mode)

Vibration Resistance: IEC 60068-2-6 (10–2000 Hz, 10 g peak)

Shock Resistance: IEC 60068-2-27 (50 g peak, 11 ms duration)

2.9905-971 Specifications

Model Number: 9905-971

Application: Rotational speed monitoring for prime movers, pumps, motors, and industrial machinery

Housing Material: Anodized aluminum alloy (corrosion-resistant)

Target Requirement: Ferrous material, minimum 6 teeth (for toothed wheel targets)

Gap Between Sensor and Target: 0.5–2.0 mm (0.02–0.08 in)

Terminal Type: M12 4-pin circular connector (IP67 rated)

Cable Option: 2 m (6.56 ft) shielded PVC cable (optional accessory)

Certification: UL 61010-1, CE, RoHS compliant

Operating Humidity: 10–95% RH (non-condensing)

3.9905-971 Dimensions

Overall Length (L): 150 mm (5.91 in)

Body Diameter (D): 30 mm (1.18 in)

Mounting Thread Size: M24 × 1.5 (metric thread)

Thread Length: 40 mm (1.57 in)

Sensor Head Protrusion: 10 mm (0.39 in)

Weight (without cable): 350 g (0.77 lb)

Weight (with 2 m cable): 420 g (0.93 lb)

4.9905-971 Mounting Instructions

Preparation

Ensure the installation surface is clean, flat, and free of debris or corrosion.

Verify the target (toothed wheel or ferrous disc) meets the required specifications (ferrous material, minimum 6 teeth).

Check that the ambient temperature and humidity at the installation site are within the product’s operating range.

Gather necessary tools: wrench (M24 size), torque wrench, caliper (for gap measurement), and wiring tools.

5.9905-971 Installation Steps

Align the sensor with the target:

Ensure the sensor head is perpendicular to the target surface (maximum deviation ±5°).

Position the sensor such that the gap between the sensor head and the target is 0.5–2.0 mm (use a caliper for precise measurement).

Secure the sensor using the M24 × 1.5 thread:

Screw the sensor into the mounting hole by hand to avoid cross-threading.

Tighten the sensor with a torque wrench to a torque of 15–20 N·m (11–14.7 ft-lb); do not over-tighten to prevent housing damage.

Wiring connections (follow M12 connector pinout):

Pin 1: Power supply positive (+12–24 Vdc)

Pin 2: Power supply negative (GND)

Pin 3: Output signal (NPN/PNP, configurable)

Pin 4: Not used (reserved for future functions)

Use shielded cable to minimize electromagnetic interference; connect the cable shield to the ground at the control unit end.

6.9905-971 Post-Installation Checks

Verify the sensor is securely mounted and there is no loose movement.

Recheck the gap between the sensor and target to ensure it remains within 0.5–2.0 mm.

Apply power to the sensor and check the output signal via a multimeter or oscilloscope to confirm proper operation.

Run a test of the connected machinery to ensure the sensor accurately detects rotational speed.

7.9905-971 Safety Notes

Disconnect power to the machinery and sensor before starting installation or wiring.

Do not install the sensor in areas with direct exposure to high-pressure water jets or corrosive chemicals (beyond IP67 protection).

Avoid mounting the sensor near high-voltage cables or strong electromagnetic sources to prevent signal interference.

9905-971 PDF
9905-971

9905-971

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