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Siemens SRCM Room Condition Monitors 547-311B

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547-311B

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The Siemens 547-311B is a pressure monitor used to track room conditions accurately. With a pressure scale of ±0.5 in WC (12.5 Pa), it is suitable for maintaining desired environmental parameters in various settings.

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Technical specifications for 547-311B

ManufacturerSiemens
Product TypeRoom condition/pressure monitor
Product LineSRCM Room Condition Monitors
Part Number547-311B
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 547-311B is a sophisticated room condition and pressure monitoring device designed for precision in various environments. The monitor calculates pressure with a full-scale range of ±0.5 in WC, equivalent to 12.5 Pa. Its weight is a manageable 1.22 lbs, making installation straightforward.

Operating with an accuracy of ±0.5% RSS, the unit ensures reliable measurements for effective environmental control. It requires an AC excitation voltage between 18 to 32 Volts to function, with a frequency input range of 50 to 60 Hz.

For temperature operations, the monitor can handle an ambient range from 0 to 50 °C, while storage capabilities extend from -30 °C to 70 °C, ensuring adaptability for different situations. It also withstands humidity levels from 5% to 95% relative humidity in non-condensing conditions, further adding to its reliability.

Power consumption is efficient, with a maximum of 10 W and a typical usage of around 3 W. Output signals can be configured for voltage (0 to 5 Volts DC or 0 to 10 Volts DC) or current (4 to 20 mA), giving users flexibility in connectivity and integration.

The display, a 4.3-inch dimmable TFT LCD with a resolution of 480 x 272, provides clear visibility of monitored conditions, while the enclosure is crafted from UL94 V-0 rated fire-retardant plastic, enhancing safety. The electrical connection is made via a removable terminal block, allowing for easy maintenance or reconfiguration.