MyWeigh HD User Manual

My Weigh HD Series Scales Manual

My Weigh HD Series Scales Manual

Thank you for purchasing the My Weigh HD Series parcel scale. This scale is designed to provide years of
accurate weighing. Please read this entire manual before use. If you have any questions about your scale or
have troubleshooting concerns, please visit our website at www.MyWeigh.com

**Batteries and AC Adaptor:
The HD Series scale was designed to run with AC power (ac adapter included) or optional AA batteries. The AC
adaptor plugs into the hole on the back side of the scales weighing indicator. If you want to use batteries, please
install them in the battery compartment on the underside of the base of the scale.

For battery installation, turn over the scale, you’ll see the battery compartment on the underside of the base of
the scale , lift and open (see the enclosed drawing Fig1) the battery cover, remove and/or install the batteri es. Be
sure that the batteries are installed correctly following the polarity indicators in the battery comp artment. Reinst all
the battery cover..

Only operate the scale on a flat, level surface that is stable and durable enough to support the scale and the
items being placed on the scale. Either place the remote display box together with the scale on its surface or
mount the display box on a wall at a suitable height with the included wall mounting kit.

This HD Series scale is compatible with most UPS and other shipping software through the built-in RS-232 port.
Please contact your software vendor for all computer hookup, operation and installation related questions. More
information regarding RS-232 connectivity can be found in the Advanced Operating Instructions within Section 4
of this manual.

Notice：

1).Press [ON/OFF] key to turn on the sacle.

2). Press and hold [ON/OFF] for 3 seconds to tu rn off the scale.

1. Specifications
Model HD150 HD300
Capacity
Graduation

2. How to Program the Auto-off time:

(1) Press down the “D” key until the indicator displays “A.OFF.X” (X=0.1.2.3.4.5.6.7.8.9 minutes), the

display value “X” is the auto-off time, when the “X” value is “0”, the auto-off function is disabled.
NOTE: The default factory setting is X=0

(2) To change the auto-off time press the “M” or “D” key; the X value will increase or decrease by 1,

press the “T” key to confirm the auto-off time setting.

(3) To exit the auto-off timer programming, press the ⊙ key, the display will then reset.

3. Weighing Operation

Press the ⊙ key, the display will show “150.00lb” for the HD150 shipping scale and “300.0lb” for the
HD300 shipping scale. The display will then read ”0.00”. The scale is now ready for use. To begin
weighing, follow these steps:
(1) Press and release the ⊙ key, the scale is now set at its zero point. If you press and hold the key,

then the scale will be turned off.

(2) Press the “M” key to change the weighing unit between “lb” and “kg”.

60kg/150lb 120kg/300lb

0.02kg/0.05lb 0.05kg/0.1lb

.

(3) Press the “T” key to TARE or Zero the scale
(4) Press the “D” key to transmit the data through the RS-232 port

Definition of display symbols:

(1) 150.00: the scales maximum capacity is 150.00lbs, the scale is attempting to locate the proper zero

position for accurate weighing.

300.00: the scales maximum capacity is 300.00lbs, the scale is attempting to locate the proper zero

position for accurate weighing.
(2) 0￣￣￣￣: the zero is too high
(3) A.0FF.x :the indicator of auto-off time
(4) CAL-Er : an error of calibration
(5) CAL-0 : the indicator mark of calibration zero
(6) CAL-F : the indicator mark of calibration full capacity
(7) A.ch.Er : an error of the A/D converter path
(8) EEP.Er : writing and reading error of the memory chip.
(9) ￣￣￣￣￣:the weight exceeds the maximum capacity (150.45lb/300.9lb)
(10) _________ :the weight is less minimum capacity
(11) Lo :low voltage
(12) SCI.x :the select indicator of the transmission protocol.

4. Advanced Operating instructions:

(1) How to reprogram the RS-232 Interface

The RS-232 interface of HD shipping scale has four work modes: SCI.1 (factory default setting and

should not be changed unless necessary.) and SCI.0,SCI.2,SCI.3; to select the work mode, please

use the following steps:

Step1. Press down and hold the “M” key until the indicator displays “SCI.x” (x=0 or 1or 2 or 3)

Step2. Press the “M” or “D” key to change the x value, the displ ay will flash the “x” value when

it is changed, press the “T” key for confirmation, the “x” will then stop flashing

Step3. Press the ⊙ key to exit programming

When work mode “SCI.1” (Serial Communication Interface transmitting and recei ving dat a format “1”)

is selected, the HD shipping scale will work with the UPS® Worldship® program. The HD Series

data transmitting and receiving format is the same as the Toledo® PS60. Within UPS® Worldship®,

select the COM1 Serial Port and select the Toledo® PS60 150lb ‘Flat Top’ Scale.

When work mode “SCI.0” is selected and the scales “DATA” key is pressed or the carriage return

(0d hex) is received, the HD shipping scale will transmit the appropriate weight, unit, stability,

over/down or low voltage message through computers serial port:

Baud rate : 9600bps

Start bit : 1 bit

Data bits : 8 bits

Stop bit : 1 bit

Parity : none

When work mode “SCI.2” is selected and the scales “DATA” key is pressed or the carriage return

(0d hex) is received, and the weight is not zero and stable, the HD shipping scale will transmit the
appropriate weight, unit, stability, over/down or low voltage message through computers serial port
once..

Baud rate : 9600bps

Start bit : 1 bit

Data bits : 8 bits

Stop bit : 1 bit

Parity : none

When work mode “SCI.3” is selected and the scales “DATA” key is pressed or the carriage return

(0d hex) is received, the HD shipping scale will transmit the appropriate weight, unit, stability,
over/down or low voltage message through computers serial port continuously.

Baud rate : 9600bps

Start bit : 1 bit

Data bits : 8 bits

Stop bit : 1 bit

Parity : none

(2) The scale transmits 14 bytes ASCII data each time:

The details are as follows:

Byte1. “:” (colon), starting byte
Byte2. “W” the following 7 bytes (3 through 9) are weight;

“M” the following 7 bytes (3 through 9) are messages

Byte3. “- “ Byte 4 through Byte 9 are negative weight;

“ ” Byte 4 through Byte 9 are positive weight or other message

Byte4. Current weight or other message

Byte5. Current weight or other message
Byte6. Current weight or other message
Byte7. Current weight or other message
Byte8. Current weight or other message
Byte9. Current weight or other message
Byte10.11. “lb” the weight unit is lb;
“kg” the weight unit is kg
Byte12. “S” the readings are stable;

“ ” the readings are unstable

Byte13. “L” low voltage

“ ” normal voltage

Byte14. Carriage Return (0d hex)

(3) RS-232 connect between HD scale and Host :

Scale--------------------------Cable-----------------------Host

(DB9 female)-----------(DB9 male)-(DB9 female)-------(DB9 male)

TXD 2----------------2------------------2-------------2 RXD

RXD 3----------------3------------------3-------------3 TXD

GND 5----------------5------------------5-------------5 GND

DSR 4----------------4------------------4-------------4 DTR

DTR 6----------------6------------------6-------------6 DSR

CTS 7----------------7------------------7-------------7 RTS

RTS 8----------------8------------------8-------------8 CTS

NC 1----------------1------------------1-------------1

NC 9----------------9------------------9-------------9

***Note: HD scale DB9 female’s pin4 and pin6 is shorted, pin7 and pin8 is shorted!