GM8802F-2 Field Mounting Transmitter
GM8802-F2110101
17
5.2.1.4 Calibration
1
）
Zero calibration with weights
Note: Write command to calibrate zero when system is stable.
Calibration command
：
STX
Address
Channel no.
C
Z
Y
CRC
CR
LF
Correct response
：
STX
Address
Channel no.
C
Z
Y
O
K
CRC
CR
LF
Here
：
C —— 1bit
，
43H
Z —— 1bit
，
5AH
Y —— 1bit
，
59H
For example:
Calibrate zero on address
01
in channel no.
1:
Calibration command
：
02 30 31 31 43 5A 59 39 34 0D 0A
Correct response:
02 30 31 31 43 5A 59 4F 4B 34 38 0D 0A
2
）
Gain calibration with weights
Note
：
Write weight when load weight
80%
of maximum capacity.
Calibration command
：
STX
Address
Channel no.
C
G
Y
Weight
CRC
CR
LF
Correct response
：
STX
Address
Channel no.
C
G
Y
O
K
CRC
CR
LF
Here
：
G
—— 1bit
，
47H
Weight —— 6bits
，
present weight value
For example:
Gain calibration to address
01
in channel no.
1
after loading weight
80%
of maximum
capacity.Command data format from host computer as follows
：
02 30 31 31 43 47 59 30 30 30 32 30 30 36 35 0D 0A
Correct response:
02 30 31 31 43 47 59 4F 4B 32 39 0D 0A
Instruction for calibration with weights
：
In zero and gain calibration with weights, please record zero millivolt, gain millivolt and
related weight in following list. If no weights to calibrate sometimes, user can calibrate
without weights as following values.
Times
Zero millivolt
（
mV
）
Gain millivolt
（
mV
）
Weight
（
Kg
）
Date
Memo
1
2
3
www.zemicusa.info
