Omega Products HX401D User Manual
Humidity/Temperature
Transmitter
HX400 Series
Optional
U 4 to 20 mA for Both
RH and Temperature
U Two Points Field
Calibration
U Models with Built-In
Display Indicate Humidity
and Temperature
U Field Configurable
Parameters
U Two Isolated SSR Output
The HX400 Series transmitters
provide remote and on‑site
monitoring of relative humidity and
temperature. Each parameter is
transmitted as a 4 to 20 mA signal
to remote receivers.
The HX400 is a programmable
2‑wire field‑mounted humidity/
temperature transmitter for use
in environmental air monitoring
and system. Its state‑of the art
design combines digital capacitor
humidity/temperature chip and
microprocessor‑based linearization
with temperature drift compensation
technology offering proportional,
linear, and highly accurate dual
4 to 20 mA output current in a
variety of applications.
The HX400 integrates functions
of transmitter, indicator and
alarm outputs in one unit. All
directly measured and computed
parameters are configured via front
3 pushbutton without personal
computer involved. Dual
3‑digit 7‑segments LED
display module indicates
the values of the measured
parameters in measuring mode
or prompting the programming
instructions during setup mode
and calibration mode. The current
output models enable placing of
the transmitter at a remote location
virtually any distance away from
the measuring device. The HX400
models feature built‑in dual displays
that indicate both humidity and
temperature simultaneously.
HX402D shown
smaller than
actual size.
H
u
HX402W shown
smaller than
actual size.
Hu-1
Specifications
Loop Power: 12 to 32 Vdc; dual 4 to
20 mA loop current; reverse polarity
protected (Vloop = 24 Vdc, Tamb = 23
±2°C, Rload = 250 Ω)
Dual Isolated Solid State Relay Output:
For output #1 and output #2; 15 mA
maximum, 40 Vdc maximum
Accuracy and Range of Output Current:
±0.02 mA; 4 to 20 mA (both channels)
Accuracy @ 23°C and Scaleable
Measurement Range: Without field
calibration
Relative Humidity (RH): ±2%;
10 to 90%
Temperature: ±0.5°C (0.9ºF)
Dew Point: ±2°C (3.6ºF)
Wet Bulb Temperature: ±2°C (3.6ºF),
‑20 to 80°C (‑4 to 176ºF)
Repeatability of Relative Humidity
and Temperature: ±1% RH, ±0.1°C
Display Resolution: 0.1% RH, 0.1°C
(temperature < 100°C)
Response: 10 seconds (relative humidity);
30 seconds maximum (temperature)
Filtering Ability of Sensor Cap:
Stainless steel wire mesh; 0.05 mm
Type of Fluid: Air and neutral gases
Configuration Operation:
Front 3 pushbutton with dual high bright
3‑digit LED module
Working Temperature:
Electronics Device: ‑20 to 70°C
(‑4 to 158ºF)
Sensing Probe: ‑40 to 100°C
(‑40 to 212ºF)
Dual Miniature Loop-Powered
Indicators: Dual 3‑digits LED (green for
humidity; red for temperature)
Reading Rate: 1 update per second
Display Accuracy
Relative Humidity: ±2% RH
Temperature: ±0.5°C (1°F)
Display Resolution:
Relative Humidity: 0.1% RH
Temperature: 0.1°C (0.2°F)
Housing Material: POM
(sensing probe); polycarbonate
(electronics device)
Protection: NEMA 4 (IP65) (electronic
device); IP40 (sensing probe)
Dimensions: 110 W x 80 L x 56 mm D
(4.3 x 3.2 x 2.2")
Weight: 250 g (8.8 oz)
Probe Dimensions:
Wall Mount Unit: L = 73 mm (2.87"),
D = 15.5 mm (0.61")
Remote Mount Unit: L = 100 mm
(3.94"), D = 15.5 mm (0.61"),
100 cm (39.4") cable, 5.3 (0.21")
diameter cable
Duct Mount Unit: L = 200 mm
(7.87"), D = 15.5 mm (0.61")
To Order Visit omega.com/hx400 for Pricing and Details
Model No. Description
HX401W Wall mount relative humidity transmitter
HX401R Remote probe relative humidity transmitter
HX401D Duct mount relative humidity transmitter
HX402W Wall mount RH and temperature transmitter
HX402R Remote probe RH and temperature transmitter
HX402D Duct mount RH and temperature transmitter
Accessories
Model No. Description
CAL-3-HU NIST‑traceable calibration
RHCN-7001 RH controller, 0 to 1 Vdc input, 110 Vac
PSR-24S Regulated power supply, US plug, 90 to 264 Vac input, 24 Vdc output, 400 mA,
screw terminals, UL
PSR-24L Regulated power supply, US plug, 90 to 264 Vac input, 24 Vdc output, 400 mA,
stripped leads, UL
PSR-24L-230 Regulated power supply, European plug, 230 Vac input, 24 Vdc output, 400 mA,
stripped leads, CE
PSU-93 Unregulated power supply, 16 to 23 Vdc, 300 mA max, screw terminal
TX4-100 4‑conductor shielded transmitter cable 30 m (100')
Comes complete with operator’s manual.
Ordering Example: HX402W, wall mount relative humidity and temperature transmitter.
For Complete
Details Visit
omega.com/
rhcn7000
Relative Humidity On/Off Controller
RHCN-7000
Series
U Bright Green 3-Digit
LED Display
U 0 to 1 or 0 to 3 Vdc,
4 to 20 mA Inputs
U 8 Amp Relay Output
U Simple On/Off Control
U Compatible with RH
Transmitters
U Optional RH Probe
Hu-2
RHCN-7001
Loading...