- Signal Conditioners
Applications: SPE-P400 is a high-precision smart transmitter with high-precision silicon pressure sensor which achieves the field device communication by microprocessor. It is with high accuracy superior stability, and It is suitable to measure liquid, gas, or steam flow as well as liquid level, density and pressure. It widely used in petroleum, chemical, electric power, metallurgy, water, brewing and other industrial fields.
Span/ Range Limits
|Reference Accuracy of Calibrated Span:|
±0.075%，±0.1% （If TD>10(TD=URL/SPAN), ±(0.005×TD)%）
(includes terminal-based linearity, hysteresis, and repeatability)
The square root accuracy is 1.5 times of reference accuracy of calibrated span.
|Ambient Temperature Effects：|
-40℃~-20℃ & 65℃~85℃:±(0.1×TD+0.025)%×Span
Every 10℃ is ±0.04% ×Span (TD=1)
|Static Pressure Effects：||±(0.025%URL+0.05%Span)/10MPa|
|Over pressure Effects：||±0.05%×Span /10MPa|
|Stability：||±0.1%×Span /3 years|
|Power Supply Effects：||±0.001% /10V (12~42V DC)|
Two wire 4~20 mADC output with digital communications, linear or square root programmable.
HART FSK protocol are superimposed on the 4~20 mADC signal. Output range: 3.9 mA to 20.5 mA.
|Failure Alarm (the mode can be selected):|
Low Mode (min): 3.7 mA High Mode (max): 21 mA
No Mode (hold): Keep the effective value before the fault. Note: The standard setting of failure alarm is High Mode.
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 0.1 to 60 sec by software and added to response time.
Ambient Temperature Limits:
|-40 to 85℃ / -20 to 65℃ with LCD display or fluorine rubber sealing|
Storage and Transportation
|-50 to 85℃ / -40 to 85℃ with LCD display|
|Working Pressure Limits (Silicone oil):||Maximum working pressure:16MPa,25MPa,40MPa|
|Static Pressure Limits:||3.5kPa abs. to maximum working pressure|
|One-way Overload Pressure Limit:||The maximum one-way overload pressure is maximum working pressure|
Wetted Parts Materials
|Sensor Body：||316L stainless steel|
316L stainless steel / Hastelloy C/Gold plated on 316L/FEP
plated on 316L/Tantalum
|Cover Flange：||316 stainless steel|
|Nuts and Bolts：||304 stainless steel|
|Process Connector：||316 stainless steel|
|Fill fluid：||Silicone oil/Fluorinated oil|
|Process Connector Gasket：||Perbunan（NBR）/Viton （FKM）/Teflon(PTFE)|
|Amplifier Housing：||Aluminum with epoxy resin coat|
|Name plate and tag：||304 stainless steel|
Degrees of Protection:
Model and suffix codes
Supply & Load Requirements
24VDC supply, R≤(Us-12V)/Imax kΩ, Imax=23 mA. Maximum voltage limited: 42VDC, Minimum voltage limited: 12VDC, 15VDC（with LCD display）230Ω to 600Ω for digital communication
The electrical connection is made via cable entry M20x1.5.The screw terminals are suitable for wire cross-sections up to 2.5mm²
Flange with fixing thread 7/16-20 UNF and 1/4-18 NPT female thread on both sides.