Input/Output Specifications; Table 3: Differential Pressure Specifications; Table 4: Static Pressure Specifications - ABB 266 MODBUS User Manual

Input/output specifications

The multivariable transmitter features multiple inputs that include DP, SP, and temperature. The transmitter output is RS-485
®
MODBUS communication.
Differential pressure input
The transmitter includes a differential pressure input. The specifications are documented in Table 3.
Item
Accuracy 4
Static pressure effect (SPE) to DP
Zero (zero errors can be
calibrated out at line pressure)
Long term stability
Ambient temperature effect
Static pressure effect (SPE) to DP
span
Vibration effect
Static pressure input
The transmitter includes a static pressure input. The specifications are documented in Table 4.
Item
4
Accuracy
Long term stability
Ambient temperature effect
Vibration effect
4
Including linearity, hysteresis, and repeatability at reference conditions
5
FCS is Factory Calibrated Span. This is the pressure range over which the factory thermally calibrated the sensor.

Table 3: Differential pressure specifications

Description
User calibrate spans from 1:1 to 10:1 (for spans > 10:1, see DS/2101130)
±0.04% (266JST)
±0.075% (266JSH)
Up to 1450 PSI: 0.02% of FCS 5
5
>1450 PSI: 0.02% of FCS per 1450 PSI
5
±0.15% of FCS over a 24 month period
Between the temperatures of -35 °F to +185 °F
5
±0.04% of FCS , ±0.02% of reading
Up to 1450 PSI: 0.02% of reading
>1450 PSI: 0.02% of reading per 1450 PSI
O (3.74 mbar) according to IEC 61298-3 "Field with general application or pipeline with low
2
±1.5 InH
vibration"

Table 4: Static pressure specifications

Description
User calibrated spans from 1:1 to 10:1 (for spans > 10:1, see DS/2101130)
±0.05% (266JST)
±0.075% (266JSH)
5
±0.15% of FCS over a 24 month period
Between the temperatures of -35 °F and +185 °F
5
±0.05% of FCS , ±0.02% of reading
O (0.00345 bar) according to IEC 61298-3 "Field with general application or pipeline with low
2
±0.05 InH
vibration"
266 MODBUS® multivariable transmitter User manual 2105216 Rev. AB | 9
2 System description