S+S Regeltechnik HYGRASGARD RPFTF 20 - Modbus - T3 Notice D'instruction page 7

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HYGRASGARD
Calibratable room pendulum humidity and temperature sensor HYGRASGARD
with Modbus connection, in an impact-resistant plastic housing with quick-locking screws, optionally with ⁄ without display, cable sensor with a
stainless steel pendulum and a plastic sinter filter (exchangeable), to exactly detect the relative humidity (0...100% RH) and the temperature
(– 35...+80 °C / – 31...+176 °F) and to detect various parameters in humidity measurement. International system of units SI (default) can be switched
to Imperial (via Modbus). The pendulum sensor is applied in a non-aggressive, dust-free environment and is suitable for installation in ceilings, ducts
and devices. It is used in the refrigeration, air conditioning and clean room technology, engineering rooms, hotels and conference facilities.
A long-term stable, digital humidity and temperature sensor guarantee exact measurement results. These measurands are used to internally
calculate the following parameters that can be retrieved via Modbus: relative humidity, absolute humidity, mixture ratio, dew point, enthalpy (ignoring
atmospheric air pressure) and ambient temperature.
Innovative Modbus sensor with galvanically separated RS485-Modbus-interface, selectable bus termination resistance, DIP switch for setting the
bus parameters and bus address in curent-free state, internal LEDs for telegram status display, two separate push-in terminals and large three-line
display (illuminated; with customised programming in the 7-segment and dot-matrix range). The sensor is factory-calibrated; an environmental precision
adjustment by an expert is possible.
TECHNICAL DATA
Voltage supply:
Power consumption:
System of units:
Data points:
Sensor:
Sensor protection:
Measuring range:
Deviation, humidity:
Temperature deviation:
Zero point offset:
Ambient temperature:
Medium:
Bus interface:
Bus protocol:
Baud rate:
Signal filtering:
Housing:
Housing dimensions:
Cable connection:
Connection cable:
Protective tube:
Electrical connection:
Permissible air humidity:
Protection class:
Protection type:
Standards:
Features:
Switchable system of units
Measurements / Data points
Temperature
Relative humidity
Dew point
Absolute humidity
Mixing ratio
Enthalpy
®
RPFTF (20) - Modbus-T3
24 V AC (± 20 %); 15...36 V DC
< 1.2 W ⁄ 24 V DC; < 1.8 VA ⁄ 24 V AC
SI (default) or Imperial (switchable via Modbus)
temperature [°C] [°F], relative humidity [% RH], dew point [°C] [°F], absolute humidity [g/m
mixing ratio [g/kg] [gr/lb], enthalpy [kJ/kg] [Btu/lb]
digital humidity sensor with integrated temperature sensor,
low hysteresis, high long-term stability
plastic sinter filter, Ø 16 mm / 0.63 in, L = 35 mm / 1.38 in, exchangeable
(optional metal sinter filter, Ø 16 mm / 0.63 in, L = 32 mm / 1.26 in)
0...100 % RH (humidity); – 35...+80 °C / – 31...+176 °F (temperature)
RPFTF - Modbus-T3:
RPFTF 20 - Modbus-T3:
typically ± 0.2 K at +25 °C / ± 0.4 °F at +77 °F
± 10 % RH (humidity); ± 5 °C ⁄ ± 9 °F (temperature)
–30...+70 °C / –22...+158 °F
clean air and non-aggressive, non-combustible gases
RS 485, galvanically isolated, Bus termination activatable via DIP switches.
Up to 32 devices possible in one segment.
In case of a greater number of devices, RS485 transceivers must be used.
Modbus (RTU mode), address range 0...247 selectable
9600, 19200, 38400 Baud
4 s / 32 s
plastic, UV-resistant, material polyamide, 30 % glass-globe reinforced,
with quick-locking screws (slotted ⁄ Phillips head combination),
colour traffic white (similar to RAL 9016), housing cover for display is transparent!
108 x 78.5 x 43.3 mm / 4.25 x 3.09 x 1.70 in (Tyr 3 without display)
108 x 78.5 x 45.8 mm / 4.25 x 3.09 x 1.80 in (Tyr 3 with display)
cable gland, plastic (2x M 20 x 1.5;
with strain relief, exchangeable, inner diameter 8 - 13 mm / 0.3 - 0.5 in) or
M12 connector according to DIN EN 61076-2-101 (optional on request)
2
PVC, LiYY, 6 x 0.14 mm / 6 x26 AWG, KL = approx. 2 m (other lengths optional)
stainless steel V2A (1.4301), Ø =16 mm / 0.63 in, NL = 142 mm / 5.6 in
0.2 - 1.5 mm² / 24 - 16 AWG, using push-in terminals
< 95 % RH, non-precipitating air
III (according to EN 60 730)
IP 65 (according to EN 60 529)
CE conformity according to EMC Directive 2014 ⁄ 30 ⁄ EU
Display with illumination, three-line, programmable, cutout approx. 51 x 29 mm / 2.0 x 1.1 in (W x H),
for displaying the actual humidity and actual temperature (cyclic)
or a selectable parameter (static)
or an individually programmable display value
SI (default) → Imperial
[°C] → [°F]
[% RH] → [% RH]
[°C] → [°F]
[g/m³] → [gr/ft³]
[g/kg] → [gr/lb]
[kJ / kg] → [Btu/lb]
® RPFTF - Modbus - T3 (± 2.0 %) or RPFTF 20 - Modbus - T3 (± 1.8 %),
typically ± 2.0 % (20...80 % RH) at +25 °C / +77 °F, otherwise ± 3.0 %
typically ± 1.8 % (10...90 % RH) at +25 °C / +77 °F, otherwise ± 2.0 %
Measuring ranges
7
Rev. Data - V40
3
] [gr/ft
SI (default) →
–35...+80 °C → –31...+176 °F
0...100 % RH → 0...100 % RH
3
],
Imperial