MAMAC SYSTEMS PR-276 Technical Information

FOR ADDITIONAL INFORMATION
SEE PR-276 DATA SHEET

SPECIFICATIONS

Accuracy*: ± 1% FS
Overpressure: 10 psid
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) 6061T aluminum probe
Finish: Baked on enamel-PMS2GR88B
Conformance: EMC Standards EN50082-1(1992)
EN55014(1993)/EN60730-1(1992)
Compensated Temp Range: 25ºF-150ºF (4ºC-65ºC)
T. C. Error: ±0.0125%/ºF (.02%/ºC)
Operating Temp Range: 0ºF-175ºF (-18ºC-80ºC)
Media Compatibility: Clean dry air or any inert gas
Environmental:10-90%RH Non-Condensing
Termination: Unpluggable screw terminal block
Wire Size: 12 Ga max.
Load Impedance: 1.6K ohms max. at 40 VDC (mA output units)
1K ohms min. (VDC output units)
Weight: 1.0 lbs. (.45 kg)
*Includes non-linearity, hysteresis and non-repeatability
RANGE
R10 ("wc)0 TO 5.0 / 0 TO 2.5 / 0 TO 1.25
R11 ("wc)0 TO 15.0 / 0 TO 7.5 / 0 TO 3.75
R12 (pa) 0 TO 1250 / 0 TO 625 / 0 TO 312.5
OUTPUT
mA (4-20 mA 2-wire)
VDC (0-5 VDC or 0-10 VDC field
Selectable)
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.

Mounting

Refer to Figure-7 for mounting dimensions.
1. Remove the transducer cover using a Phillips head
screwdriver.
2. Select the mounting location.
3. Mount transducer on a vertical surface with two #8
self-tapping screws (not provided).
4. Pull wires through bottom of enclosure and make
necessary connections.
5. Replace cover and make pneumatic connections.
Model PR-276
Technical Information
TI.276-01
Duct Pressure Transducer