ABB 261GS - Total Performance and Technical Data

261Gx, 261Ax | IM/261Gx/Ax-EN Rev. 08 41
9.3.12 Total performance
Similar to DIN 16086
In the range -10 … 60 °C (14 … 140 °F):
0.42% of the set span (TD 1:1)
The total performance accuracy includes the measuring error
(non-linearity including hysteresis and non-reproducibility), as
well as the thermal change in the ambient temperature as
regards the zero signal and span.
2
2
21
)(
linTSTSperf
EEEE 

E
perf
= Base accuracy
E
ΔTS1
= Effect of the ambient temperature on the URL
E
ΔTS2
= Effect of the ambient temperature on the measuring
span
E
lin
= Measuring error (for setting cut-off point)
9.4 Technical specification
(Please refer to the order information to check the availability
of different versions of the relevant model)
9.4.1 Materials
Process separation diaphragms
1
Hastelloy C276, Hastelloy C276 gold plated,
Stainless steel (1.4435 / 316L)
Process connection
1
Stainless steel (1.4404 / 316L)
Sensor filling fluid
Silicone oil, inert fill (fluorocarbon), white oil (FDA)
Mounting bracket
Stainless steel
Sensor housing, electronics housing and cover
Stainless steel (1.4404 / 316L)
Filter for atmospheric ventilation
Filter housing: plastic (standard), stainless steel (code EA, AB)
Filter material: polyamide (PA)
Viewing window in cover (LCD display)
Polycarbonate, Makrolon 6557
Cover O-ring
EPDM
Plates
Plastic data plate attached to the electronics housing
1 Wetted parts of the transmitter.
9.4.2 Calibration
Standard:
— 0 to upper range limit (URL)
Optional:
— To specified measuring span
9.4.3 Optional extras
Mounting bracket
For vertical and horizontal 60 mm (2 in.) pipes or wall
mounting
LCD display
Can be rotated in 90° increments into 4 positions
Additional tag plates
Code I2: For measuring point tag (up to 30 characters) and
calibration specifications (up to 30 characters: lower and
upper value plus unit), attached to transmitter housing.
Code I1: For customer data (4 lines with 30 characters each),
attached to transmitter housing with wire.
Cleaning stage for oxygen applications (O2)
Certificates (test, design, characteristics, material
traceability )
Name plate and operating instruction language
Communication plug connectors
9.4.4 Process connections
1/2-14 NPT female or male thread, DIN EN 837-1 G 1/2 B or
G 1/2 B (HP) for convex seal, flush diaphragm, for installation
in ball valve.