Sentera Controls DXH-F, Mounting And Operating Instructions

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MIW-DXH-EN-001 - 02 / 10 / 2017 4 - 10
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PRODUCT DESCRIPTION
The DXH is a sensor / switch for relative humidity measurements in ducts. It provides
four predefined ranges and one user-definable range. The unit is equipped with
Modbus RTU (RS485) communication and has an analogue output and a relay
output.
ARTICLE CODES
Code Supply Connection
DXH-G 13—26 VAC
18—34 VDC
3-wire
DXH-F 18—34 VDC 4-wire
INTENDED AREA OF USE
■
Monitoring and maintaining constant relative humidity level in duct systems
■
For duct use only
TECHNICAL DATA
■
Analogue output: 0—10 VDC / 0—20 mA
■
Relay output: C/O (230 VAC / 2 A)
■
Power consumption:
►
no load: max. 55 mA
►
full load: max. 75 mA
■
Load resistance:
► 0—10 VDC mode > 500 Ω
►
0—20 mA mode < 500 Ω
■
Selectable sensor ranges by trimmer: 20—90 % rH / 0—60 % rH / 0—80 % rH /
0—95 % rH
■
Free selectable sensor range via Modbus: 0—95 % rH
■
Selectable switching point: by trimmer or via Modbus
■
Hysteresis:
►
fixed (Standalone mode): 5 % rH
►
selectable (Modbus mode): 1 / 3 / 5 / 7 / 10 % rH
■
Accuracy: ± 3 % rH (0—95 % rH)
■
Enclosure:
►
ASA, grey (RAL9002)
►
IP54 (according to EN 60529)
■
Fixing flange:
► PE, black (RAL9004)
► IP20 (according to EN 60529)
■
Operating ambient conditions:
►
temperature: 0—50 °C
►
rel. humidity: < 95 % rH (non-condensing)
■
Storage temperature: -40—50 °C
STANDARDS
■
Low Voltage Directive 2014/35/EU
■
EMC Directive 2014/30/EU
■
WEEE Directive 2012/19/EU
■
RoHs Directive 2011/65/EU
DXH
DUCT HUMIDITY
SENSOR / SWITCH