The display uses a 24 bit A / D converter, can be connected to various types of sensors and transmitters to achieve the pressure, flow, level, composition analysis and volume measurements, and other physical and mechanical parameters, display, alarm monitoring, data acquisition and recording. Functions: Relay(1,2,3) Amplifer 4-20mA, 0-5V Modbus RTU RS485 Dual 6 digit LED display Baud rate 19200 Applications: Load cells Torque transducers

1.Introduction：

The display uses a 24 bit A / D converter, can be connected to various types of sensors and transmitters to achieve the pressure, flow, level, composition analysis and volume measurements, and other physical and mechanical parameters, display, alarm monitoring, data acquisition and recording.

2.Parameters：

Work Environment:	Temperature：-20-50℃	Display	Dual 5 high brightness red LED
Work Environment:	Humidity：20-90％RH	Output excitation voltage	5V ~15V (for sensor supply), current <50MA
Accuracy	±0.2％F.S±1 word	Supply Voltage	AC195 ~ 242V, power consumption <5w
Monitoring cycle	0.2 seconds: can be increased to 0.05 seconds

3.Button introduction：

“SET”button：SET “>”button：Shift key or tare key(peak meter)

“∧”button：UP “CLR”button：Peak clear key or tare key(upper and lower limit gauge)

4. Content：

Symbol	Name	Range
SAL	OUT1relay	00000~full scale
SPL	OUT1deviation	0
SAH	OUT2relay	00000~full scale
SPH	OUT2deviation	0
SL	Zero calibration	00000
SH	Load calibration	More than half scale
Sd	Decimal location	0~3
Id	Division value	1.2.5.10.20
CLTF	Peel key selection	0.1
FIL	Weight filtering degree	1-9
ZERO	Zero tracking range	0~4
bd	Baud rate	0~3
Ad	Address setting(RS485 only)	01-30
OUTF	Alarming output	0 or 1

5. Operating introduction：

1． Press’SET’ more than three seconds to show ‘SAL’for setting OUT1relay. Press’SET’ again to show ‘SPL’ for setting OUT1deivationExplanation: When ‘SPL’=0, if force value > SAL, OUT1 close; If force value < SAL, OUT release When ‘SPL’≠0, if force value > SAL+SPL, OUT1 close; If force value < SAL+SPL, OUT1 release

2． Press’SET’ to show ‘SAH’for setting OUT1relay. Press’SET’ again to show ‘SPH’ for setting OUT2deivation

3． Press’SET’ to show ‘CIN’ for entering password. The original password is 00000. If you don’t want to change password, press ‘SET’ for next step. If you want to change password, press ‘CLR’ to show ‘CON’, set your 5 digit password and press ‘SET’ for next step.

4． Press ‘ SET’ to show ‘SL’ for zero calibration

5． Press’SET ’to show ‘SH’ for load calibration. The loading should be more than half scale. Input corresponding force value.

6． Press’SET’ to show ‘Sd’ for decimal setting. Press ‘∧’ for adjusting decimal location.

7． Press’SET’ to show ‘Id’ for division value.

8． Press’SET’ to show ‘CLFT’ for peel key selection. When ‘CLFT’ is 0, ‘CLR’ can peel. When ‘CLFT’ is 1, ‘CLR’ cann’t peel.

9． Press ‘SET’ to show ‘FIL’ for weight filtering. The value is from 1-9. The value means the speed of value stability. The bigger the value is, the slower the speed stabilize.

10． Press ‘SET’ to show ‘ZERO’, if the time is less than 2 seconds, the value will track to zero.

6. Communication protocol

1. Baud rate

bd	Value	Baud rate
	0	2400
	1	4800
	2	9600
	3	19200

2. RS232 wiring definition

Serial ports are GND(indicator 21 foot), RXD(indicator 22 foot), TXD(indicator 23 foot), RXD refers to PC’s RXD. TXD refers to PC’s TXD.

3. Communication adopts MODBUS-RTU format: address domain+functional domain+data domain+check domain

Functional domain：

Functional code	meaning	Behavior
0x03	Read data register	Read data register value
0x10	Modify data register	Overwrite multi-bit data register values

Format：

Read data register

address

function

Data

start reg hi

Data

start reg lo

Data # of

Reg hi

Data # of

Reg lo

Crc-16 lo

Crc-16 hi

0x01

0x03

0x00

0x55

0x00

0x01

0x94

0x1A

Modify the switch

address

function

Data

start reg hi

Data

start reg lo

Data # of

Reg hi

Data # of

Reg lo

Crc-16 lo

Crc-16 hi

0x01

0x05

0x00

0xFF

0x00

CRC0

CRC1

Modify data register

address

function

Data

start reg hi

Data

start reg lo

Data # of

Reg hi

Data # of

Reg lo

Byte

count

Value hi

Value

Crc-16 lo

Crc-16 hi

0x01

0x10

0x00

0x50

0x00

0x01

0x02

0x03

0xE8

0xAA

0xBE

Address: Follower address function: function code

Data start reg hi: Register start address high byte Data start reg lo: Register start address low byte

Data # 0f reg hi: Read register number high byte Data # 0f reg lo: Read register number low byte

Crc -16 lo: Check code low byte Crc -16 hi: Check code high byte

4. Parameters and address

Register address	Parameters	Value range	Data type
0x50	LO limit	0-60000	word
0x51	LO deviation	0-60000	word
0x52	UPPER limit	0-60000	word
0x53	UPPER deviation	0-60000	word
0x54	Decimal	0-3	word
0x55	Positive or negative	0 is positive ; 1 is negative	word
0x56	Value display	0-60000	word
0x57	peel	Write 1 means peel	word

7. Attention

1． Setting error or invalid, press’∧’ for reset.

Press’>’ for three seconds to display 0 or 1. Press ‘>’ again for switching 0 and 1. When display ‘0’ press’>’ for lowest force value indicator, when display ‘1’ for peak indicator.

　　Zhimin is a Chinese leading manufacturer of precision weight measurement technologies designed for use across a diverse range of industrial sectors. Our journey began in 1995 When Chinese biggest strain gauges and load cells manufacturer closed. One of their engineers established a load cell company, designing and developing innovative load sensors. Very soon the business grew to one of the biggest private sensor manufacturer in China.In 2019, Zhimin was successfully listed on the Anhui stock market. After that, more and more shareholders join in Zhimin, which makes Zhimin maintain constant vigor and vitality.