High Accuracy Differential Pressure Transmitter

PERFORMANCE SPECIFICATIONS
Reference Accuracy of Calibrated Span (includes terminal-based linearity and hysteresis, AND repeatability)
± 0.075%; If TD>10 (TD=URL/SPAN):
± (0.0075×TD) %;


Power Supply Effects:
±0.001% /10V (12~42V DC)


External Zero Adjustment
External zero is continuously adjustable with 0.01% incremental resolution of span. Re-range can be done locally using the range setting switch.


Mounting Position Effects
Rotation in diaphragm plane has no effect. Tilting up to 90 degree will cause zero shift up to 0.4 kPa which can be corrected by the zero adjustment.


Output
Two wire 4 to 20 mA DC output with digital communications, linear ors square root programmable. HART FSK protocol is option superimposed on the 4 to 20 mA signal. Output range: 3.9 mA to 20.5 mA


Failure Alarm (the mode can be selected)
Low Mode (min): 3.7 mA and High Mode (max): 21 mA
No Mode (hold): Keep the effective value before fault. The standard setting of failure alarm is High Mode.


Response Time
The amplifier damping constant is 0.1 sec; The sensor damping constant is 0.1~1.6 sec, IT depends on the range AND range compression ratio. Amplifier damping time constant is adjustable from 0 to 60 sec by software AND added to response time.