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Setra Systems

SRH400 Humidity and Temperature Transmitter

Modular humidity and temperature transmitter consists of basic unit and various pluggable, interchangeable probes

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The innovative, modular SRH400 humidity (RH) and temperature (T) transmitter consists of a basic unit and various pluggable, interchangeable probes. The basic unit can accommodate one combined S07 RH and T probe or two separate S07 probes, one for RH and one for T. The S07 probes are available in plastic or in stainless steel enclosure and can be plugged onto the basic unit either directly or with M12 extension cables up to 10 m (32.8 ft) long. An optional kit facilitates the mounting of the probes in a duct. The SRH400 basic unit is available with a metal enclosure suitable for wall mount.

The measured values are available on two analog voltage or current (2 wire, 4-20 mA) outputs, as well as on the optional display. One or two point adjustment for RH and T of the transmitter can be easily performed with push buttons on the electronics board of the SRH400 unit. Alternatively, the SRH400 probes can be adjusted individually with the PCA Product Configuration Adapter (see S07 data sheet).

The SRH400 is fully gasketed with a powder-coated finish and die cast construction for aggressive environments. All external hardware is stainless steel.

• Interchangeable probes
• Outstanding accuracy and long term stability
• Easy loop calibration
• Wide temperature working range

Supply Voltage (Class III) 0-10 V output: 15-30 VDC or 15-29 VAC
4-20 mA output: 10 -35 VDC
Current ConsumptionDC supply: typ. 10 mA
AC supply: typ. 20 mA
Load Resistor (4-20 mA output)RL < [(UV-10 V)/0.02 A][Ω]
ConnectionScrew terminals, max. wire 16 AWG
Housing MaterialAlSi9Cu3 (cast alloy)
Protection ClassIP65/ NEMA 4
Gland FittingPG9 cable, Ø 4.5-100 mm (0.18-0.39”)
Sensor ProtectionSST mesh
Electromagnetic CompatibilityEN61326-1, EN61326-2-3, Industrial environment
Temperature RangesOperating: -40 to 140°F (-40 to 60°C)
Storage: -40 to 140°F (-40 to 60°C)
Outputs0-1 V: -0.5 mA < IL < 0.5 mA
0-10 V: -1 mA < IL < 1 m
4-20 mA (2-wire): RL < 500 Ω
T dependence of analog outputsMax. 0.2 mV/°C; Resp. 1 μA/°C
Working Range (RH)0-100% RH
Accuracy including non-linearity, hysteresis, and repeatability at -40 to 140°F (-40 to 60°C); 0-90% RH±1% RH
Accuracy including non-linearity, hysteresis, and repeatability at -40 to 140°F (-40 to 60°C); 90-100% RH±3% RH
Temperature accuracy at 70°F±0.18°F

• HVAC
• Cleanrooms
• Operating rooms
• Patient isolation rooms
• Pharmaceutical labs
• Industrial manufacturing
• Compounding pharmacie

  • Thumbnail of document Model SRH400 Data Sheet 8387
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    Model SRH400 Data Sheet 8387

    Download

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