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Pressure Meter

SMR01 series

Pressure Transmitter

Description

The Pressure Transmitter is connected directly via RS485 communication interface, providing simple, reliable, cost-saving process data with remote monitoring, calibration, configuration and diagnostic capabilities. Housing in a robust IP68 proof enclosure, 1500 N tensile strength Kevlar reinforced cable, up to 1.2 km digital data transmission, the transmitter is ideally used in water/wastewater industry.

DM (3.6 MB)

Features

All-in-One Compact Housing, Built-in Transmitter and Sensors
Robust IP68 Water Submersible Protection, Directly Installed in the Field, No Cabinet Required
Plug & Play, On-line Realtime Measurement
Ultra Low Power Consumption, Ideal for Outdoor Applications
1500 N Tensile Strength Kevlar Reinforced Cable
Surge Protection for Power and RS485 Communication
RS485 Digital Communication, Minimize Cabling and Engineering Cost
Standard Modbus RTU Protocol, Direct Connected with PLC, HMI
Onboard Memory Allowing Users Easily Calibrate and Configure Sensor at Lab and Distribute to Various Fields and Sites
AQCFG Software Tool for Data Monitoring, Calibration, Configuration and Diagnosis
IECEx/ATEX Ex ia IIB T5 Ga Explosive Proof Certification

Applications

Drinking water, stormwater groundwater, industry, water treatment, wastewater, gas petrochemical

Specifications

Measurement Method
The transmitter is with a small profile, piezoresistive silicon pressure sensor packaged in a 316L stainless steel housing in a 1/4-18 NPT threaded fittings. The package utilizes silicon oil to transfer pressure from 316L stainless steel diaphragm to the sensing element. A ceramic substrate is attached to the package that contains laser-trimmed resistors for temperature compensation and offset correction.

Pipe Insertion
Submersible

SMR01 Pressure Transmitter

General
Output Signal	RS485 (Modbus RTU protocol), 19,200 bps, 8 data bits, no parity, 1 stop bit ; 4~20 mA (optional)
Data Resolution	16 bits (0.001% FS)
Surge Protection	4000 VDC
Power	5~12 VDC, 5 mA
Protection	Polarity, Overload, Short circuit
Safety	CE, FCC
Pressure
Measurement range	-1~20 Kgf/cm²
Accuracy	± 0.1% FS
Resolution	0.01% FS
Repeatability	±0.025% FS
Stability(annual)	0.1% FS
Overload	3 X measurement range
Burst	>4 X measurement range
Operating temperature	0 ~ 60 °C
Response time	1 sec
Protection	IP68
Connection	5-pin M16 plug
Process connection	1/4" NPT
Housing sensor	SS316L
Sensor Material	SS316L
Dimension	Φ 23Χ 110 mm
Weight	transmitter : approx. 200 g ; cable: 80 g/m