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G
®
RHEASGARD
KHSSF ⁄ RHEASREG
Electronic duct top-hat rail airflow sensor RHEASGARD
boxes or control cabinets with 35 mm mounting rail, external flow probe incl. mounting flange, for determining the flow velocity
(0.1...20 m/s). The measuring transducer automatically detects the required output type and converts the measurands into the required
standard signal of 0–10 V or 4...20 mA (Automatic Output Switching).
Electronic duct top-hat rail airflow monitor RHEASREG
control cabinets with 35 mm mounting rail, external flow probe incl. mounting flange, for determining the flow velocity (0.1...20 m/s).
The flow sensors ⁄ flow monitors are suitable for monitoring or controlling airflows in ducts, at fans and dampers,
for flow-dependent monitoring of humidifiers and electric heating registers according to DIN 57100, Sect. 420,
or for use in connection with DDC systems.
TECHNICAL DATA
Power supply:
Current consumption:
Outputs:
Data point:
Sensor:
Measuring range:
Accuracy:
Long-term stability:
Reproducibility:
Switching hysteresis:
Warm-up time:
Response time:
Start-up override:
LED operating
status indicator:
Housing:
Probe/sensor:
Sensor cable:
Electrical connection:
Process connection:
Ambient temperature:
Medium temperature:
Permitted humidity:
Protection class:
Protection type:
Standards:
®
KHSSW
®
KHSSF with active ⁄ switching output, housing for installation in distributor
®
KHSSW with switching output, housing for installation in distributor boxes or
24 V AC ⁄ DC (± 10 %)
(KHSSW-W24, KHSSF-W)
230 V AC (± 10 %), 50 Hz
(KHSSW-W230)
approx. 3 VA
KHSSF-W
0–10 V ⁄ 4...20 mA (via Automatic Output Switching –
the unit recognises the required output type
and automatically switches to U or I output);
24 V changeover contact (max. 5 A, cos ϕ = 1), a switching hysteresis
of 2 % final value, threshold can be adjusted via potentiometer
KHSSW-W24
24 V changeover contact (max. 5 A, cos ϕ = 1), a switching hysteresis
of 2 % final value, threshold can be adjusted via potentiometer
KHSSW-W230
230 V AC changeover contact (max. 10 A, cos ϕ = 1), a switching hysteresis
of 2 % final value, threshold can be adjusted via potentiometer
flow velocity [m/s]
calorimetric, temperature compensated, sensor breakage protection
0.1...20 m/s
0.5 m/s + 3 % measured value
± 0.5 % of final value per year
± 1.0 % of final value
2.0 % of final value
< 2 min
< 60 s
60 s (changeover contact switched or 10 V / 20 mA at output,
after applying the supply voltage)
Yellow LED
off:
switching point not reached (contact 5-6 open)
on:
switching point reached (contact 5-6 closed)
flashing:
start-up override is active
Green LED
on:
Unit is ready for operation
flashing:
error in sensor or sensor line
PC / ABS (UL94-V0) material, light grey colour,
36 mm (2TE) wide for 35 mm mounting rail,
approx. 90 x 36 x 58 mm (H x W x D)
Polyamide (PA6) material, white colour (blue sensor holder), with torsion protection,
Ø 12 mm, EL = approx. 20–155 mm, v
PVC LiY Y, 3-wire, K L = approx. 2.4 m
0.14–2.5 mm
2
, via screw terminal
by means of mounting flange with seal
(included in the scope of delivery)
storage –20...+50 °C; operation 0...+60 °C
0...+70 °C
< 98 % RH, non-precipitating air free of harmful substances
II (according to EN 60 730) with UB = 230 V
III (according to EN 60 730) with UB = 24 V
IP 30 (according to EN 60 529) housing
IP 20 (according to EN 60 529) sensor technology
CE conformity according to EMC Directive 2014 ⁄ 30 ⁄ EU, according to EN 61326-1, as per EN 61326-2-3
= 30 m /s (air)
max
(KHSSW-W230)
(KHSSW-W24, KHSSF-W)
8
Rev. Data - V10
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