MAMAC SYSTEMS HU-224 Technical Information

8189 Century Boulevard • Minneapolis, MN 55317-8002 • USA
800-843-5116 • 952-556-4900 • Fax 952-556-4997
sales@mamacsys.com • www.mamacsys.com
For Additional Information See HU-224/225 Data Sheet
HU-225
Executive Style
(Wall Mount)
SPECIFICATIONS
Accuracy*: ± 2% / ±3% RH
Range: 0–100% RH
Hysteresis: ± 1%
Supply Voltage: 12–40 VDC
12–35 VAC (VDC output units only)
Supply Current: VDC Units – 10 mA max.
mA Units – 20 mA max.
Enclosure: 18 Ga C. R. Steel NEMA 4 (IP-65)
or ABS Plastic
Finish: Baked on enamel–PMS2GR88B or off-white
EMC Conformance: EN 55022, 55024, 61000-3-3,
61000-4-2, 3, 4, 5, 6 & 11
Compensated Temp Range: -30°F to 130°F (-35°C to 55°C)
Environmental: 10–90%RH Non-Condensing
Termination: Unpluggable screw terminal block
Wire Size: 12 Ga max.
Load Impedance: 1.5K ohms max. at 40 VDC (mA
output units)
1K ohms min. (VDC output units)
Weight: Duct Mount: 1.0 lbs. (.45 kg)
Wall Mount: 0.5 lbs (.25 kg)
*Includes non-linearity and non-repeatability
ORDERING INFORMATION
PACKAGING ACCURACY
HU-224 (Duct Mount) ± 2%
± 3%
HU-225 (Wall Mount)
Ex: HU-224-2-mA – Duct Humidity Transducer, ± 2% RH accuracy with 4–20 mA output.
HU-224
Duct Mount
OUTPUT
mA (4–20 mA 2-wire)
VDC (0–5 VDC/0–10 VDC
field selectable)
RoHS
INSTALLATION
Inspection
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.
Requirements •
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
Warning:
• 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.
Caution:
•
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.
HU-224 (DUCT) – The HU-224 must be mounted as referenced by
Mounting
Figure 6.
1. Drill 5/8" hole in appropriate location.
2. Mount transducer on a vertical surface with two #8 self-tapping
screws (not provided).
3. Pull wires through knockout and make necessary connections
(see wiring drawings).
4. Replace cover and tighten Philips screws.
HU-225 (WALL) – The HU-225 must be mounted as referenced by
Figure 6.
1. Turn both allen screws CW on bottom of unit – remove cover.
2. Select the mounting location (locate away from diffusers, lights,
or any external influences).
3. Mount transducer on a vertical surface with two screws
provided.
4. Pull wires through sub base hole and make necessary
connections (see wiring drawings).
5. Replace plastic cover and turn allen screws CCW.
Wiring Use maximum 12 AWG wire for wiring terminals. Refer to Figures
1, 2, 3, & 4 for wiring information and Figure 5 for dip switch
designations.
(Wiring Instructions continued on Pages 2 & 3.)
Model HU-224/225

Technical Information

TI.224/225-08
HUMIDITY SENSOR