Setra 269 Data sheet
Very Low Differential Pressure Transducer
Air or Non-Conducting Gas
the diaphragm away from the electrode,
decreasing the capacitance. The change in
capacitance is detected and
converted to a
electronic circuit.
The tensioned sensor allows up to 2 PSI over-
to the unit. In addition, the parts that make up
the sensor have matched thermal coeffi cients,
which promote improved temperature per-
formance and excellent long-term stability.
etra Systems Model 269 pressure
transducers sense differential
and convert this pressure difference
to a proportional electrical output for either
20 mA analog output.
applications
, these transducers are capable
of
The 269 Series transducers are available for
air pressure ranges as low as 0.1 in. W.C. full
scale. Static standard
accuracy is ±0.25% full
scale (terminal-based) in normal ambient
temperature environments. The units can
temperature compensated to 0.01% FS/
o
thermal error over the temperature range of
20
o
o
The Model 269 utilizes an improved all
stainless steel micro-tig welded sensor. The
tensioned stainless steel diaphragm and in-
sulated stainless steel electrode, positioned
close to the diaphragm, form a variable
capacitor. Positive pressure moves the dia-
capacitance. A decrease in pressure moves
CRITICAL
HIGHER
Model 869 Low
Pressure Generating &
Documenting Calibrator
ACCURACY
&
PEFORMANCE
Model 269
Applications
● Critical Environments
● Clean Rooms
● Isolation Rooms
● Room Pressure Monitoring
● Environmental Pollution
Control
Features
■ Installation Time Minimized
with Din Rail Mounting
and Easy-to- Access Pressure Ports and Electrical
Connections
■ Removable Process Heads
Eliminates the Need to Cut
Tubes for Easier Installation
■ Detachable Terminal Block
so Field Wiring Can Remain
In-Situ During Calibration
S
■ Calibration Secure - Calibra-
tion Key for Making Zero
and Span Adjustments
■ 2-Wire 4 to 20 mA Analog
Output Compatible with Energy Management Systems
■ Reverse Wiring Protection
■ Internal Regulation Permits
Use with Unregulated DC
Power Supplies
■ Fire Retardent Case
(UL 94 V-0 Approved)
■ Calibration Certs Available
■ 2:1 Turndown Ratio
Available
■ Meets CE Conformance
Standards
Visit Setra Online:
http://www.setra.com
800-257-3872
Accuracy Class (FS) Code V E G
±0.25% ±0.50% ±1.00%
±0.15% ±0.35% ±0.75%
±0.10%
±0.25% ±0.55%
0.05%
±0.05%
±0.10%
±
0.05%
±0.05%
±0.05%
Zero Setting Tolerance
±
.04mA
±
.08mA
±
.12mA
Span Setting Tolerance
.04mA
.08mA
.12mA
Thermal Effects
*
Compensated Range °F 20 to +140
Zero/Span Shift %FS/°F 0.01% 0.02% 0.02%
Overpressure Up to 2 psi i(Range Dependent)
Circuit 2-Wire
Output
4 to 20mA
**Calibrated at factory with a 24 VDC loop supply voltage and a 250 ohm load.
T
ypically air or similar non-conducti
Specifi cations subject to change without notice.
Toll Free: 800-257-3872; Fax: 978-264-0292; email: sales@setra.com
Code all blocks in table.
Model
2691 = 269
Calibration Certifi cates are standard for all units.
ordering for calibration key accessory.
2 6 9 1
0R1WD = 0 to 0.1 in. WC R05WB = ±0.05 in. WC
R25WD = 0 to 0.25 in. WC 0R1WB = ±0.1 in. WC
0R5WD = 0 to 0.5 in. WC R25WB = ±0.25 in. WC
001WD = 0 to 1 in. WC 0R5WB = ±0.5 in. WC
1R5WD = 0 to 1.5 in. WC 001WB = ±1 in. WC
2R5WD = 0 to 2.5 in. WC 1R5WD = ±1.5 in. WC
003WD = 0 to 3 in. WC 2R5WB = ±2.5 in. WC
005WD = 0 to 5 in. WC 005WB = ±5 in. WC
010WD = 0 to 10 in. WC 015LB = ±15 Pa
025LD = 0 to 25 Pa 025LB = ±25 Pa
050LD = 0 to 50 Pa 050LB = ±50 Pa
100LD = 0 to 100 Pa 100LB = ±100 Pa
250LD = 0 to 250 Pa 250LB = ±250 Pa
500LD = 0 to 500 Pa 500LB = ±500 Pa
001KD = 0 to 1 kPa 001KB = ±1kPa
2R5KD = 0 to 2.5 kPa
Mounting
Confi guration
D = Din Rail Mount
Output
Confi guration
Confi guration
Outline Drawings
While we provide application assistance on all Setra products, both personally and
through our literature, it is the customer’s responsibility to determine the suitability
of the product in the application.
Zero Offset
effect in the vertical position.) To 0.5 in. WC 1.00
To 1.0 in. WC 0.50
To 2.5 in. WC 0.22
To 5.0 in. WC 0.14
Temperature
Operating °F -20 to +160
Storage °F -40 to +185
C
ase Fire-Retardant ABS
Connector
on Removable Process Head
Zero and Span Adjustments External Security Key
*Units calibrated at nominal 70˚F. Maximum thermal error computed from
this datum.
D = With Display
N = No Display
Version
Version
Terminal Block
32
Specifi cations)
Accuracy
Class
V = ±0.25% FS
E = ±0.50% FS
G = ±1.0% FS
Optional Display
Optional Display
Optional
Optional Turn-Down Switch Location
Security
Cal Key
Cal
Cal
Security Key Accessory
Transducer
MM
3.40
86
Turndown
A = 2 x 1
N = None
N = None
0.75
5.63
3.90
3.90
99
0.48
0.48
0.75
2.90
73
2.90
73
Model 269 Specifi cations
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