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Description
Room pendulum humidity and temperature sensor
HYGRASGARD® RPFF / RPFTF
The calibratable HYGRASGARD® RPFF / RPFTF pendulum room humidity and temperature transmitter with plastic sinter filter measures relative humidity and air temperature of air. It converts the measurands into standard signals of 0-10 V or 4...20 mA, supports four switchable temperature measuring ranges and is available with or without optional display.
The measuring transducer is applied in non-aggressive dust-free atmospheres in refrigeration, air conditioning, ventilation and cleanroom engineering, in hotels, utility rooms, meeting rooms and convention centres. It provides precise detection of temperature and humidity. A digital long-term stable sensor is used as a measuring element for humidity and temperature. The sensor is suitable for ceiling and duct installation, or for integration into equipment. The device is factory-calibrated and can be fine-tuned to ambient conditions by an expert.
Technical details
Power consumption
< 1.1 VA/ 24 V DC ; < 2.2 VA/ 24 V AC
Voltage supply
24 V AC (± 20 %) and
15…36 V DC
15…36 V DC
Operating range, humidity
0...95 % RH (without dew formation)
Deviation of humidity
typical ± 2 % RH (20…80 % RH ); at + 77 °F, otherwise ± 3 %
Data points
elative humidity [% RH]
Load resistance
RL > 5 kOhm
Measuring range, humidity
0...100 % RH
(output corresponding to 0 -10 V)
(output corresponding to 0 -10 V)
Output, humidity
0 - 10 V
Accuracy
± 2 %
Ambient temperature
storage +23...+140 °F
operation +23...+140 °F
operation +23...+140 °F
Protective tube
stainless steelV2A (1.4301), Ø = 0.63 in, L = 5.59 in
Electrical connection
2-, 3- or 4-wire connection
AWG 26 - 16 via terminal screws on circuit board
AWG 26 - 16 via terminal screws on circuit board
Cable gland
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 0.4 in
max. inner diameter 0.4 in
sensor cable
PVC, LiYY, 6 x 26 AWG,
KL = approx. 6.5 ft(other lengths optional)
KL = approx. 6.5 ft(other lengths optional)
Long-term stability
± 1 % per year
Protection class
III (according to EN 60 730)
Protection type
IP 65 (according to EN 60 529) Housing tested,
TÜV SÜD, Report No.713139052 (Tyr 1)
TÜV SÜD, Report No.713139052 (Tyr 1)
Sensor protection
plastic sinter filter, Ø 0.63 in, L = 1.38 in, exchangeable
(optional metal sinter filter, Ø 0.63 in, L = 1.26 in)
(optional metal sinter filter, Ø 0.63 in, L = 1.26 in)
Cable connection
cable gland, plastic (M 16 x 1.5; with strain relief, exchangeable, max. inner diameter 0.4 in) or
M12 connector according to DIN EN 61076-2-101 (optional on request)
M12 connector according to DIN EN 61076-2-101 (optional on request)
Housing
plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)
Housing dimensions
2.8 x 2.5 x 1.5 in (Tyr 1)
Standards
CE conformity,
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3