HUMIDITY TRANSDUCER SPECIFICATIONS
Accuracy*: ± 2% / ±3% RH
Range: 0-100% RH
Hysteresis: ± 1%
Supply Voltage: 12-40 VDC
12-35 VAC (VDC output units only)
Compensated Temp Range: -30°F to 130°F (-35°C to 55°C)
Load Impedance: 1.5K ohms max. at 40 VDC (mA output units)
1K ohms min. (VDC output units)
* Includes non-linearilty and non-repeatability
Inspection
Requirements
For Additional Information See HU-226 Data Sheet
INSTALLATION
8189 Century Boulevard • Minneapolis, MN 55317-8002 • USA
800-843-5116 • 952-556-4900 • Fax 952-556-4997
Model HU-226
Technical Information
TI.226-05
HUMIDITY / TEMP SENSOR
Inspect the package for damage. If damaged, notify the appropriate
carrier immediately. If undamaged, open the package and inspect
the device for obvious damage. Return damaged products.
• Do not use on oxygen service, in an explosive/hazardous
environment, or with flammable/combustible media.
• Disconnect power supply before installation to prevent
electrical shock and equipment damage.
• Make all connections in accordance with the job wiring diagram
and in accordance with national and local electrical codes. Use
copper conductors only.
• Use electrostatic discharge precautions (e.g., use of wrist straps)
during installation and wiring to prevent equipment damage.
• Avoid locations where severe shock or vibration, excessive
moisture or corrosive fumes are present. NEMA Type 4 housings
are intended for outdoor use primarily to provide a degree of
protection against wind-blown dust, rain, and hose-directed water.
• Do not exceed ratings of the device.
• Tools (not provided)
- Digital Volt-ohm Meter (DVM)
- Appropriate screwdriver for mounting screws
- Appropriate drill and drill bit for mounting screws
• Appropriate accessories
• Two #8 self-tapping mounting screws (not provided)
• Training: Installer must be a qualified, experienced technician
RoHS
HU-226
Duct Mount
THERMISTOR SENSOR SPECIFICATIONS
Interchangeability: ± 0.2°C
Heat Dissipation: 3.0 mW/°C
R/T Characteristics: Refer to TI.700-11 (See Temperature Sensor section)
Operating Temp Range: -30°F to 130°F (-35°C to 55°C)
PLATINUM RTD SENSOR SPECIFICATIONS
Accuracy: 0.12% at 0°C
Resistance: 100 or 1,000 ohm at 0°C
Standard: DIN 43760
Heat Dissipation: 3.0 mW/°C
R/T Characteristics: Refer to TI.700-11 (See Temperature Sensor section)
GENERAL SPECIFICATIONS
CONFORMANCE & TESTING
Environmental: 10-90%RH Non-Condensing
Enclosure: 18 Ga C.R. Steel NEMA 4 (IP-65)
Finish: Baked on enamel - PMS2GR88B
Termination: Unpluggable screw terminal block
Wire Size: 12 Ga maximum
Weight: Duct Mount: 1.0 lbs. (.45 kg)
TEMP SENSOR
ACCURACY
(4-20 mA 2-wire)
(0-5 VDC/0-10 VDC
field selectable)
mA
VDC
Ex: HU-226-2-mA-3 - Humidity/Temp
Sensor, ±2%RH accuracy with 4-20 mA
output and 1,000-ohm Platinum RTD.
OUTPUT
± 2%
ORDERING INFORMATION - HU-226-
± 3%
1
2
3
4
5
7
8
10
12
13
14
15
16
17
18
21
100 ohm Platinum RTD
1,000 ohm Nickel RTD
(5,000 PPM)
1,000 ohm Platinum RTD
1,000 ohm Nickel RTD
(6,000 PPM)
1,000 ohm Balco RTD
10,000 ohm NTC Thermistor
(Type III)
10,000 ohm NTC Thermistor
(Carel)
3,000 ohm NTC Thermistor
10,000 ohm NTC Thermistor
(Type II)
5,000 ohm NTC Thermistor
1,035 ohm Silicon PTC
100,000 ohm NTC
10,000 ohm NTC Thermistor
(Eliwell)
Thermistor
20,000 ohm NTC Thermistor
2,252 ohm NTC Thermistor
1,800 ohm NTC Thermistor
Operating Temp Range: -30°F to 130°F (-35°C to 55°C)
Warning:
Caution:
RoHS Compliant
EMC Testing: BS EN 55022:1998, BS EN 55024:1998,
EN 61000-3-3, EN 61000-4-2,
EN 61000-4-3, EN 61000-4-4,
EN 61000-4-5, EN 61000-4-6
EN 61000-4-11
For Resistance vs. Temperature Tables,
please refer to TI.700.11
(4 pages)
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