M1500 系列工业压力变送器
M1500 系列工业压力变送器简单介绍
Meriam’s compact, M1500 Digital Pressure Transmitters are ideal for pressure measurement needs from 10” H20 to 3000 PSI Full Scale. Output options include digital (RS-232, RS-485 and USB) or analog (mA or V DC). Choose from differential (dry/dry or wet/wet), gauge, compound or absolute pressure types. Typical NIST traceable digital accuracy is ±0.025% of F.S. including all effects of linearity, repeatability, hysteresis and temperature from -20º to +50º C (-4º to +122º F). Digital output options for the M1500 deliver accurate pressure measurement to compatible receiving devices. Choose RS-232 single point or RS-485 for networks up to 255 devices. M1500 connections are made with a 7 position terminal block or DB-9 serial port. The USB digital communication option also powers the M1500 via high power USB ports or powered USB hubs. Software is included for initial setup and support. Meriam Serial Protocol (MSP) or Modbus RTU protocol (pending) can be used to send and receive information. Implementation Guides for MSP and Modbus RTU are available at www.meriam.com (see Resources / Application Notes). Analog output options are also available. Output accuracy is typically ±0.035% of F.S. The user may configure the M1500 for 0 – 5 VDC or 4 – 20 mA output. Two SPST alarm switches are included. Analog units are configured using a USB Mini A Connector and the included Meriam Setup Utility. The utility supports initial configuration, zeroing, recalibration and other functions. For wider pressure range requirements, model M1502 incorporates two pressure sensors. Most combinations of AI or CI type pressure sensors are supported. See the table below for available AI or CI ranges. M1502 is only available with RS-232, RS-485 or USB digital outputs - not available with analog output. A single software command returns both pressure readings. The M1502 reduces purchase price and installation costs when multiple pressure measurements are needed.
M1500 系列工业压力变送器的详细介绍
Industrial Pressure Transmitter
M1500
Field Recalibration: All M1500 transmitters can be recalibrated in the field using suitable reference standards.
Applications
• Lab data acquisition
• Test and monitoring applications
• Barometric pressure reference
• Production skids
• Pneumatic / hydraulic go, no go testing
• Pressure leak testing
• Process control applications
• Plant instrumentation
• OEM applications
• Laminar Flow Systems
• Wet / wet differential monitoring and control
• Head type flow metering:
(Orifice plate, Venturi, Accutube, Wedge)
• Clean room pressure monitoring
Standard Accessories
P/N Z9A000003PN06 Support Disk for M1500 including:
- Meriam Setup Utility
- Meriam Serial Protocol Implementation Guide
- Modbus RTU Implementation Guide (Pending)
- USB Device Drivers & Installation Instructions
- LabVIEW® VI’s
Optional Accessories
P/N Z9P273 Analog Starter Kit, USB cable, 6 ft. for configuration through PC software
P/N ZA900447-00052 DB-9 connector cable, 6 ft., female by male
P/N Z7621 RS-485 to RS-232 interface adapter, DIN rail mounted
P/N Z7621-1 RS-485 to RS-232 interface adapter, PC port mounted and powered
LabVIEW® is a registered trademark of National Instruments.
Pressure
NIST Traceable Accuracy
Digital: ±0.025% of Full Scale including all affects of linearity, repeatability, hysteresis and temperature
Analog: ±0.035% of Full Scale including all affects of linearity, repeatability, hysteresis and temperature
Temperature Spec.: Accuracy statements include all affects of temperature from 20º to +50º C (-4º to +122º F)
Pressure Measurement Update Rate:
M1500: 14 readings per second, maximum
M1502: 7 readings per second, maximum (consult factory for faster update rates)
Engineering Units: 32 selectable pressure units plus two user units (pending)
Limits
DN sensors: 2x range when pressurized on P1 (HI) side only, 150 PSI when applied simultaneously to P1 (HI) & P2 (LO) sides.
DI sensors: 3x range when pressurized on P1 (HI) side only, 3x range or 150 PSI (whichever is less) on P2 (LO) side only, 1000 PSI when applied simultaneously to P1 (HI) & P2 (LO) sides.
GI, CI & AI sensors: 2x range
Media Compatibility
DN sensors: Non-isolated for clean, dry, non-corrosive gases only (Brass, 316L SS, Silicon gel)
DI sensors: Isolated for fluids compatible with 316L SS and Viton®
GI, CI, AI sensors: Isolated for fluids compatible with 316L SS
Output Options
Digital (use Meriam Serial Protocol, LabView® or Modbus RTU Protocol - Pending)
RS-232: 19200 baud (adjustable), 8 data bits, 1 stop bit, no parity
RS-485: half duplex, 3-wire TR-1, TR-0, signal ground, 19200 baud (adjustable), 1 start bit, 1 stop bit, no parity. Multi-drop addressing for up to 255 devices (MSP) or 246 devices (Modbus RTU)
USB: USB 2.0
Analog
4 – 20 mA: 2-wire loop powered, 3-wire, 4-wire systems.
0 – 5 VDC Analog: 3-wire, 1 – 5 VDC is user configurable
Two SPST alarm switches, 80V DC, 100 mA maximum, 3-or 4-wire systems only
Connections
Pressure: 1/8” NPT (female)
Electrical / Communications / Output:
Power: 7 position terminal block; 1.3 mm diameter holes for 16 – 25 gauge solid or stranded wire
RS-232: DB-9 (female) Serial Connector or 7 position terminal block
RS-485: 7 position terminal block
USB: USB type B female connector
Analog: Terminal blocks with USB Mini -A Connector for configuration and recalibration