Safety grid not required:load cell interface intrinsic safety loop design
Dual screen display:Certification accuracy: 6000e six digits LED, 1.7″OLED screen for text message
Square structure design:IlC 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
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
| Parameter | ||||
| 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 (L×W×H)/mm | 235×182×109 | 209×156×105 | 235×182×109 | 209×156×105 |
| Weight (Kg) | 22 | 11 | 23 | 12 |
| Explosion-proof sign | Ex db [ib Gb] IIB+H2 T6 Gb; Ex tb [ib Db] IIIC T80°C Db | Ex db [ib Gb] IIC T6 Gb; Ex tb [ib Db] IIIC 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 | 1µV/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 (default 60) | |||
| Increment size | 0.001/0.002/0.005 | |||
| 0.01/0.02/0.05 (default 0.01) | ||||
| 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) | |||
The list marked with ※ is optional, customers need to purchase separately.
