Product specifications

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DIFFERENTIAL PRESSURE
10
Model 264
ential Pressure Transducer

■ 
■ Installation Time Minimized with Snap Track
Mounting and Easy-To-Access Pressure Ports
and Electrical Connections
■ 
Outputs Are Compatible with Energy Man-
agement Systems
■ 
■ Internal Regulation Permits Use with Unregu-
lated DC Power Supplies
■ 
 
■ Meets CE Conformance Standards
APPLICATIONS
■ 

■ Energy Management Systems
■ 
■ Environmental Pollution Control
■ 
■ 

The calibration of this product is NIST traceable.
U.S. Patent nos. 6019002; 6014800
DESCRIPTION

measures pressures and ows with the accuracy necessary for
proper management of building pressurization and air ow
control.

     
±1.0% full scale in normal ambient temperature environments.
-

Model 264
w/ Conduit Cover Option
SPECIFICATIONS
Performance Data Environmental Data Electrical Data (Voltage)
Standard Optional
Operating Temperature
3
°F (°C) 0 to +175 (-18 to +79) Circuit 3-Wire (Com, Out, Exc)
Accuracy RSS
1
(at constant temp)
±1.0% FS ±0.4% FS ±0.25% FS
Storage Temperature °F (°C) -65 to +250 (-54 to +121) Excitation/ Output
4
9 to 30 VDC / 0 to 5 VDC
5 ,6
Non-Linearity, BFSL ±0.96% FS ±0.38% FS ±0.22% FS
Physical Description
Output Impedance 100 ohms
Hysteresis 0.10% FS 0.10% FS 0.10% FS
Case Fire-Retardant Glass Filled Polyester
(UL 94 V-O Approved)
Bidirectional output at zero pressure 2.5 VDC
5 ,6
Physical Description
Electrical Connection Screw Terminal Strip
Electrical Data (Current)
Compensated Range ºF (ºC) 0 to +150 (-18 to +65) Mounting
4 screw holes on removable zinc plated
steel base (designed for 2.75” snap track)
Circuit 2-Wire
Zero/ Span Shift
%FS/100ºF(50ºC)
±0.033 (±0.06)
Pressure Fittings
3/16” O.D. barbed brass for 1/4”
pushon tubing
Output
2
4 to 20 mA
8,9
Maximum Line Pressure 10 PSI Zero and Span Adjustments Accessible on top of case External Load 0 to 800 ohms
Overpressure Up to 10 PSI (Range Development) Weight (approx.) 10 Ounces Minimum Supply Voltage (VDC) 9 + 0.02 x (resistance of receiver plus line)
Long Term Stability 0.5% FS/1 YR
Pressure Media
Maximum Supply Voltage (VDC) 30 + 0.004 x (resistance of receiver plus line)
Typically air or similar non-conducting gases. Bidirectional output at zero pressure 12 mA
8,9
Position Eect
Range %FS/G
1
RSS of Non-Linearity, Hysteresis, and Non-Repeatability.
2
Units calibrated at nominal 70˚F. Maximum thermal error computed from this datum.
3
Operating temperature limits of the electronics only. Pressure media temperatures may be considerably higher.
4
Calibrated into a 50K ohm load, operable into a 5000 ohm load or greater.
5
Zero output factory set to within ±50mV (±25 mV for optional accuracies).
6
Span (Full Scale) output factory set to within ±50mV. (±25 mV for optional accuracies).
7
Calibrated at factory with a 24 VDC loop supply voltage and a 250 ohm load.
8
Zero output factory set to within ±0.16mA (±0.08 mA for optional accuracies).
9
Span (Full Scale) output factory set to within ±0.16mA (±0.08 mA for optional accuracies).
Specications subject to change without notice.
Unit is factory calibrated at 0g
eect in the vertical position
0.1 in. WC 2.3
0.25in. WC 1
0.5 in. WC 0.5
1.0 in. WC 0.3
2.5 in. WC 0.2
10 in. WC 0.15