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Siemens SRCM Room Condition Monitors 547-311A

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547-311A

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The 547-311A from Siemens serves as a precise monitor for room conditions and pressure, efficiently tracking environmental metrics. This device features a pressure range of ±0.5 inches WC (12.5 Pa) and achieves a remarkable accuracy of ±0.5% over the full scale. With a compact weight of 1.22 lbs, it fits seamlessly into operational environments.

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Technical specifications for 547-311A

ManufacturerSiemens
Product TypeRoom condition/pressure monitor
Product LineSRCM Room Condition Monitors
Part Number547-311A
Pressure Range (Full Scale)0.5 (-/+) in WC (12.5 Pa)
Accuracy (Full Scale, RSS)0.5%, -/+
Excitation Voltage Rating (AC)18 to 32 Volts AC
Input Voltage Frequency50 to 60 Hz
Operating Temperature Range0 to 50°C (electronics only)
Storage Temperature Range-30°C to 70°C
Humidity Range5 to 95% RH (Non-Condensing)
Power Consumption10 W max., 3 W typical
Output Signal (Voltage)0 to 5 Volts DC or 0 to 10 Volts DC
Output Signal (Current)4 to 20 mA
Display4.3 in. dimmable TFT LCD, 480 x 272
Case MaterialFire-retardant plastic, UL94 V-0
Electrical ConnectionRemovable terminal block
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The Siemens 547-311A device operates effectively as a room condition and pressure monitor. It supports a full-scale pressure range of ±0.5 inches of water column (WC), equivalent to approximately 12.5 Pa. Its accuracy is commendably established at ±0.5%, ensuring reliable readings in various applications. Weighing in at 1.22 lbs, it is suitable for easy integration into existing systems.

This monitor requires an excitation voltage of 18 to 32 Volts AC and functions efficiently within a frequency range of 50 to 60 Hz. The operating temperature lies between 0°C and 50°C for the electronics, while the storage conditions extend from -30°C to 70°C. It accommodates relative humidity from 5% to 95%, provided the environment remains non-condensing.

Power consumption peaks at 10 watts, with typical consumption around 3 watts, ensuring energy-efficient operation. The output signals are versatile, providing 0 to 5 Volts DC or 0 to 10 Volts DC, along with current options of 4 to 20 mA.

The built-in display is a 4.3-inch dimmable TFT LCD, delivering a resolution of 480 x 272 for clear visibility. Constructed from fire-retardant plastic compliant with UL94 V-0 standards, the case is designed with safety in mind. The unit also includes a removable terminal block for straightforward electrical connections, simplifying installation and maintenance.