Description
The Honeywell MA243SAN is a sealed front-end variable reluctance speed sensor designed for accurate rotational speed detection in harsh operating environments. It provides a minimum 60 V peak-to-peak output, supporting stable signal generation in applications exposed to fluids, vibration, and temperature extremes.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Honeywell |
| Category |
Sensors |
| Part Number |
MA243SAN |
| Subcategory |
Speed Sensors |
| Sensor Type |
Variable Reluctance Speed (VRS) |
| Output Voltage |
60 V Peak-to-Peak Minimum |
| Coil Resistance |
910–1200 Ohms |
| Response Frequency |
Up to 15,000 Hz |
| Minimum Surface Speed |
10 IPS (0.25 m/s) Typical |
| Gear Pitch Range |
24 DP or Coarser |
| Mounting Thread |
5/8-18 UNF-2A |
| Thread Length |
3.0 in (76.2 mm) |
| Dimensions |
104.12 × 21.98 × 19.05 mm |
| Operating Temperature |
-55 to 150 °C |
| Environmental Protection |
Sealed Front-End |
| Vibration Standard |
MIL-STD-202F Method 204D |
| Weight |
0.3 lbs |
Information About MA243SAN
The MA243SAN is part of Honeywell’s MA240 series of variable reluctance speed sensors developed for high-output and high-reliability performance. It features a sealed sensing face that protects internal components from lubricants, fluids, and contaminants commonly found in industrial and heavy-duty machinery. The sensor utilizes a high-resistance precision coil to generate strong voltage output across a wide range of speeds and gear configurations. Compliance with MIL-STD-202F vibration requirements ensures consistent operation in mechanically demanding environments.
Key Features
- High Voltage Output: Produces a minimum of 60 V peak-to-peak signal for reliable speed detection in electrically noisy systems.
- Sealed Front-End Design: Protects the sensing element from oils, debris, and moisture in harsh environments.
- High-Resistance Coil Construction: Coil resistance of 910–1200 ohms supports strong signal generation at low surface speeds.
- Wide Temperature Capability: Operates reliably from -55 °C to 150 °C across diverse industrial conditions.
- Standard Threaded Mounting: 5/8-18 UNF-2A thread with 3.0-inch length enables secure and repeatable installation.
- Broad Gear Compatibility: Designed for gear pitches of 24 DP or coarser, supporting multiple mechanical designs.
- High Frequency Response: Capable of sensing rotational speeds with response frequencies up to 15,000 Hz.
The MA243SAN delivers the reliability and precision required for speed sensing applications in harsh industrial and heavy-equipment environments.
