SMART MICRO DIFFERENTIAL
PRESSURE TRANSMITTER
SMDPT-LD
OVERVIEW
SMDPT-LD Smart Micro Differential Pressure Transmitter applies in lossless and remote signal transferring in industrial automation controls engineering. It combines with industrial controlling instrument to form necessary pressure measuring instrument for smart controlling system. It uses built-in microprocessor and high performance signal microprocessor sensor to collect pressure signal, transfers it to digital signal through A/D and passes it to user’s receiving devices.
FEATURES
● High performance based with microprocessor
● Digital signals system
● RS485/RS232 output signal to collect maximum 512 sensors
● Use software to calibrate zero point and full pressure range. No potentiometer required.
● Suit for mass digit collecting and automatic controlling system.
● Max. zero drift is ±0.25kPa. All zero drifts can be corrected and have no impact to the span.
● Adjustable with span or zero point button of the device, or able to be remotely controlled through HART hand-held communicator.
SPECIFICATIONS
Pressure range：0.15 / 0.5；0.125 / 1.5 KPa
Pressure Measurement：Gauge pressure；absolute pressure
Output signals：RS485/RS232 4-20mA / HART
Display mode：4-digit LED display
Output indicator：linear (0-100% scale)；square root (0-100% scale)；
3-1/2-digit LCD (0-100% linear)；3-1/2-digit smart LCD
Accuracy：0.2% F.S.
Nonlinearity：＜0.25% F.S. ＜0.5% F.S.
Hysteresis：＜0.25% F.S. ＜0.5% F.S
Repeatability：＜0.25% F.S. ＜0.5% F.S
Zero compensation：＜0.1% F.S. ＜0.2% F.S
Temp.compensation：＜0.01% F.S. ＜0.2% F.S
Stability (year)：＜0.2% F.S. ＜0.25% F.S
Damping time (sec.)：Adjustable
Working voltage：12-36V DC (standard：24V DC)
Working temperature：-20～85°C
(silicon oil filled: -40～85°C；Inert liquid: -30～60°C)
Overload capacity：300%；0～6.9 MPa pressure put on any side of the transmitter causes no harm.；3.45KPa～6.9MPa in static pressure can meet the performance requirement
Reliability：Over 90 million times (25°C)
Loading resistance：＜750Ω
Response Time：＜1ms
Measuring media：Any media compatible with 316L
Diaphragm materials：SS316L or ceramic
Housing materials：1Cr18Ni9Ti or cast aluminum
Process connection：M20x1.5, or follow customer’s requirement
Explosion-proof：ExiaIICT4 (Intrinsic safety)；ExdIIBT5 (explosion-proof)
Housing protection：IP67
*Note: The case of blind and explosion-proof series is prohibited to open when it is powered.
DIAPHRAGM PRESSURE GAUGE
Sanitary Process Connection –
Tri-Clamp Type
DS500 series
*Applications
Diaphragm pressure gauges are used when medium is high viscous, crystallizing or with particles. DS500 series is particularly used in food, beverage, biochemical and pharmaceutical industry. The features are easy to open, cleaning without residues and quickly measuring point.
*SPECIFICATIONS
1. Instruments: SUS series pressure gauges and pressure transmitters are available.
2. Process connection Tri-Clamp:Diaphragm housing SS304; SS316; SS316L
3. Diaphragm: SS316L standard, other material available made-to-order
4. Temperature: Medium 80 deg.C ; 80~400 deg.C available made-to-order
5. Filling Fluid: Glycerin, food compatible
6. Pressure Range :
Tri-clamp 1-1/2”：0/2.5 ~ 0/40 kg/cm2 (bar)
Tri-clamp 2” ：-760mmHg ~ 40kg/ cm2 (bar)
Tri-clamp 2-1/2”：-760mmHg ~ 40kg/ cm2 (bar)
7. Accessory assembly (option): Cooling fin
Clamp ring (ferrule) + welding socket (whole set)
Capillary for remote measuring (specify length of capillary when ordering)
