中文版
ENGLISHPRODUCT CATEGORIES
Load Cells
Weigh Modules
Scale indicator & contr…
Scales
Auxiliary product
Product description:
EM300 is an industrial-grade process-controlling explosion-proof weight indicator and controller, using flameproof and intrinsic safety design, intrinsic safety loop design, to be suitable for all kinds of dust and gas under potential explosive hazardous sites, which be applied to transmission and simple process controlling.
Key features:
• Certification accuracy：3000e
• Safety grid not required: load cell interface intrinsic safety loop design.
• Dual screen display：six digits LED, 1.7 "OLED screen for text message
• Square structure design：IIC explosion-proof rating, high utilization of internal space, easy installation and maintenance, top rod-typed flameproof big button.
• Communication interface：standard isolated RS232 and isolated RS485; CAN, analog output, 4~20mA/0~10V；Optional discrete I/O port, 8 inputs and 8 outputs.
• Communication protocols: Modbus-RTU, Modbus-TCP, CANopen, command output
| Product model | EM300-0-2 | EM300-0-0 | EM300-1-2 | EM300-1-0 | ||||
| Materials | stainless steel（0Cr18Ni9） | cast aluminium（ADC12） | stainless steel（0Cr18Ni9） | cast aluminium（ADC12） | ||||
| Cavity size (LxWxH)mm | 235x182x109 | 209x156x105 | 235x182x109 | 209x156x105 | ||||
| Weight (Kg) | 22 | 11 | 23 | 12 | ||||
| Explosion-proof sign | Ex db [ib Gb] llB+H2 T6 Gb, Ex tb [ib Db] lllC T80℃ Db | Ex db [ib Gb] llC T6 Gb, Ex tb [ib Db] lllC T80°C Db | ||||||
| AC/DC Power | 85-264VAC/18-36VDC | |||||||
| Protection degree | IP68(2m/2h) | |||||||
| Operating temperature | -20~+60 | |||||||
| Service entrance | G3/8” M16x1.5 | G1/2” M20x1.5 | G3/4” M25x1.5 | |||||
| Applicable cable diameter | φ4-φ9 | φ6-φ12 | φ6-φ13 | |||||
| Intrinsic safety parameter | Loop | Uo(V) | lo(mA) | Po(mW) | Co(μF) | Lo(mH) | ||
| +EXC | 7.14 | 342 | 397 | 13.5 | 0.7 | |||
| +SEN | 7.14 | 342 | 397 | 13.5 | 0.7 | |||
| +SIG | 7.14 | 342 | 397 | 13.5 | 0.7 | |||
| -SIG | 7.14 | 342 | 397 | 13.5 | 0.7 | |||
| -SEN | 7.14 | 342 | 397 | 13.5 | 0.7 | |||
| -EXC | 7.14 | 342 | 397 | 13.5 | 0.7 | |||
| Display screen | LED nixie and 1.7 "OLED dot matrix display | |||||||
| Number of verification scale intervals (e) | 3000 | |||||||
| Number of scale intervals for indicator (d) | 100000 | |||||||
| Number of sensors | Up to 4 350 ohm load cells (2 or 3mV/V) | |||||||
| AD sampling rate | 300Hz | |||||||
| Load cell Excitation | 5VDC | |||||||
| Minimum sensitivity | 1 μV/e | |||||||
| Accuracy class | Ⅲ | |||||||
| KeyPad | 4 key top bar button; Film keyboard (expandable up to 32 keys) | |||||||
| Communication protocol | Command output, continuous output,Modbus RTU,Modbus TCP | |||||||
| Calibration function | Weight calibration; Weight-free calibration; Remote calibration | |||||||
| Scale | 1 | |||||||
| Capacity | 1-500,000kg(default60) | |||||||
| Increment size | 0.001/0.002/0.005 | |||||||
| 0.01/0.02/0.05(default0.01) | ||||||||
| 0.1/0.2/0.5 | ||||||||
| 1/2/5 | ||||||||
| 10/20/50 | ||||||||
| Serial ports | 1 way RS232/RS485 multiplexing (isolation) | |||||||
| 1 way RS232 (isolation) | ||||||||
| 1 way CAN (isolation) | ||||||||
| 1 way LAN | ||||||||
| Baud rate | 1200，2400，4800，9600 (default) ,19200，38400，57600，115200 | |||||||
| Analog quantity ※ | 1 way 4-20mA or 0-10v | |||||||
| Input/output point ※ | 8 inputs (optocoupler isolation) /8 outputs (relays, transistors) | |||||||
Note:The list marked with ※ is optional, customers need to purchase separately.
