1、INTRODUCTION ------------------------------------------------- 1
2、ASSEMBLY ------------------------------------------------- 1
3、INSTALLATION ------------------------------------------------- 1
4、PRECAUTION ------------------------------------------------- 1
5、FEATURES ------------------------------------------------- 2
6、AVAILABLE UNITS ------------------------------------------------- 2
7、PANEL AND KEYPAD DEFINITION ------------------------------------------------- 2
7. 1 FUNCTION SETTING ------------------------------------------------- 4
7. 2 PARAMETER SETTING ------------------------------------------------- 4
BACKLIGHT SETTING ------------------------------------------------- 4
RESOLUTION SETTING ------------------------------------------------- 4
FILTER SETTING ------------------------------------------------- 5
ZERO BAND SETTING ------------------------------------------------- 5
BAND RATE SETTING ------------------------------------------------- 5
BUZZER SETTING ------------------------------------------------- 5
CHECK-WEIGHING MODE SETTING ------------------------------------------------- 6
CHECK-WEIGHING MEMORY SETTING ------------------------------------------------- 6
RS232 OUTPUT FORMAT SETTING ------------------------------------------------- 6
EXTERNAL DEVICE SETTING ------------------------------------------------- 7
AUTO TARE SETTING ------------------------------------------------- 7
RS232 OUTPUT CONTENT SETTING
------------------------------------------------- 7
RS232 OUTPUT CONTENT SETTING
------------------------------------------------- 7
UNITS SETTING ------------------------------------------------- 7
INITIAL UNIT SETTING ------------------------------------------------- 8
8、KEYPAD ------------------------------------------------- 8
ZERO ------------------------------------------------- 8
TARE ------------------------------------------------- 8
PRE-TARE ------------------------------------------------- 9
0~9 AND ● ------------------------------------------------- 9
IMPUT ELIMINATE ------------------------------------------------- 9
WEIGHING FUNCTION CONVERSION ------------------------------------------------- 10
UNITS CONVERSION ------------------------------------------------- 10
SAMPLE IN PCS AND % MODE ------------------------------------------------- 10
PRINT ------------------------------------------------- 10
RETURN ------------------------------------------------- 10
NET AND TOTAL WEIGHT CONVERSION ------------------------------------------------- 10
ACCUMULATE ------------------------------------------------- 11
ACCUMULATE DISPLAY ------------------------------------------------- 12
ACCUMULATION ELIMINATE ------------------------------------------------- 13
CHECK-WEIGHING ------------------------------------------------- 14
AUTO TARE ------------------------------------------------- 14
9、 CALIBRATION OPERATION ------------------------------------------------- 15
9.1 CALIBRATION（six point calibration） ------------------------------------------------- 15
9.2 SINGLE POINT CALIBRATION ------------------------------------------------- 16
10、INTERNAL COUNT DISPLAY，TESTING ------------------------------------------------- 17
11、RTC ------------------------------------------------- 18
RTC TIME DISPLAY ------------------------------------------------- 19
RTC TIME SETTING ------------------------------------------------- 20
12、ERROR MESSAGE ------------------------------------------------- 21
12.1 ERROU MESSAGE ------------------------------------------------- 21
12.2 TROUBLE SHOOTING ------------------------------------------------- 21
13、SPECIFICATIONS ------------------------------------------------- 21
(normal type) ------------------------------------------------- 21
(high resolution and filter type) ------------------------------------------------- 22
14、RS-232 OUTPUT FORMAT ------------------------------------------------- 22
-1 -
1、INTRODUCTION：---
Thank your for your purchase of a Hengx high resolution electronic scale. This scale enables you to measure the
quality and weight. The scale is easy to operate, precise, stable and with fast display reaction. It is applicable in the
electronic, hardware, plastic, medicine, textile and various other industries. It is useful for packaging, inventory and
various production and quality control cases.
2、ASSEMBLY：---
3、INSTALLATION：---
z Assembly（please follow the sequence）
z Release and remove the protection screw【6】to resist the bottom housing。
z Always lock the protection screw before transportation
z 【1】Power switch
z 【2】RS-232 uni-direction
z 【3】RS-232 bi-direction
z 【4】DC power connector
z 【5】RELAY check-weighing (output)
4、PRECAUTION：---
1） full charge the battery after unpacking the scale.
2） recharge the battery: when battery symbol appears on the LCD display, please plug in the power lord to charge the
battery. The indicator of charge will light up in red. When it becomes green means charge completed( it takes about
8hours to full recharge the battery)*.
3） install the equipment on a level and stable surface.
4） do not install the equipment near the air condition or a vibrating machine.
5） Please in the temperature of 0 ~ 40℃℃，prevent from rapid temperature changes.
6） independent AC outlet for this equipment is recommended, check the voltage before plug in.
7） warm up the equipment for 15 minutes before use.
- 2 -
5、FEATURES：---
1) Load Cell have OIML approved, R60 test，
2) the microprocessor in this scale features：
A. automatic zero point tracking function
B. tare, pre-tare and auto tare function
C. ACAI function is applicable for the accuracy of unit weight
D. weight HI/LOW setting
E. MAX accumulation (10sets)
F. Each accumulation value print
G. Total accumulation value print
H. BACKLIGHT AUTO ON
I. 2 sets of RS-232 (option)
J. Relay output (option)
K. Mini printer（option）
L. RTC( option)
3) clear LCD display, with 22mm digits
4) backlight function
5) over load and transportation protection
6) membrane keypad，easy operation and nice water-resistant function
7) can be used as simple counting scale
8) stainless steel weighing pan
6、AVAILABLE UNITS：---
1) 1 kg = 1000g
2) 1 lb = 453.59237g
3) 1 oz = 28.349523125g
4) PCS
5) %
7、PANEL AND KEYPAD DEFINITION: ---
627
10
34 85
21
9
2019
18
22
1
16
14 11
15
17
1213
-3 -
keypad
1
Press “accumulation” to
accumulate(totally 10 times)
(HI used for check-weighing)
8
To come into zero
2
Press this key to enter accumulation
display function,(LO used for
check-weighing)
9
For print
( used to check in unit weight warning
and accumulation memory function)
3
Press this key to clear accumulation value
(OK used for check-weighing)
1
0
Units conversion
4
To clear the input data 11
Weighing mode conversion
5
When some weight on the pan, Press
“tare” to tare
1
2
Net weight/ total weight conversion
6
For pre-tare
(used to check in accumulation display
and eliminate)
1
3
Return
7
Put samples onto the pan, and input the
number, then press “sample”
1
4
Press to enter weight, quantity and
HI/LO/OK check-weighing setting
1
5
~ &
Used for inputting number data
Panel illuminate
1
6
Display weight
1
7
Level instruction
1
8
Recharge instruction
1
9
Check-weighing bigger than instruction
2
0
Check-weighing equals with instruction
2
1
Check-weighing smaller than instruction
2
2
Enter accumulation
- 4 -
7.1 FUNCTION SETTING：---
KEYPAD FUNCTION
NO/OFF +
Parameter setting
NO/OFF + +
display COUNT（OFFSET）
NO/OFF + + +
weighing mode
NO/OFF +
Linearity calibration
NO/OFF +
Single point calibration
RTC on/off, display and setting
NO/OFF + +
Initialization setting
7.2 PARAMETER SETTING：(underline words are initial setting) ---
OPERATION LCD display
press to switch on：
Backlight setting：--
press ：
z on / off / auto
(“on” means the backlight is always be
light; “off” means the backlight is turn
down; “auto” means the backlight will on
when there is weight on it.)
press to change the setting
Resolution setting：--
press ：
z 1 (15000 dual display resolution)
2 (3000 or 3750)
3 (6000 or 7500) 4 (15000)。
(normal type)
z 2 (3000 or 3750) 3 (6000 or 7500)
4 (15000)
5 (30000)。
(high resolution and filter type)
press to select in turn
-5 -
Filter setting：--
press ：
z F1 / F2 / F4 / F8
(higher value, higher filter grade)
press to select in turn
Zero band setting：--
press ：
z d0 / d1 / d2 / d3 / d4 / d5
(more bigger means auto zero
Tracking more bigger)
press to select in turn
Band rate setting：--
press ：
z band rate setting： 9600
Buzzer setting：--
press ：
z on(buzzer on) / oFF(buzzer off)
press to select in turn。
- 6 -
Check-weighing mode setting:--
press ：
z HI(upper )/ Lo(lower)/ In(during
upper value to lower value) /un
( outside the value)/ 3b( 3 point)/
oK( 1 point) /oFF(close)
z (totally we have 3 value to set. For
example, if you set 3kg for HI, and
1kg for LO, and 2kg for OK, then if
you want it warning when upper than
3kg, then you choose HI, if you want
it warning when lower than 1kg, then
you choose LO, if you want it
warning when during 1kg-3kg, then
you choose IN, if you want it warning
when upper than 3kg and lower than
1kg, then you choose Un, if you
want it warning just in 3kg, 2kg, and
1kg, then you choose 3b, if you want
it warning in 2kg, then you choose
OK, if you do want any warning, then
you choose OFF.)
press to select in turn
Check-weighing memory setting：--
press：
z M.On / M.oFF
(“M.On” means check-weighing
memory is open; “M.oFF” means
check-weighing memory is closed)
press to select in turn
press and to eliminate
check-weighing
RS232 output format setting：--
press ：
z Prt.Pr -data sent when key
Pressed(can do date send in dual
direction, see page 22)
z Prt.Co- data sent continuously
z Prt.St-data sent auto matically when
stable symbol show
press to select in turn
-7 -
External device setting：--
press ：
z PC / SH / TDP/ SCR(“PC” means
connect to computer; “SH” means
connect to matrix printer; “TDP”
means connect to thermal printer;
“SCR” means connect to large
screen.)
press to select in turn
Auto- tare setting：--
press ：
z YES(on) / NO(off)
press to select in turn
RS232 output content setting (net weight)：--
press：
z Pr（print）/ nP（not print）
press ：to select in turn
RS232 output content setting (accumulation value)：--
press ：
z Pr（print）/ nP（not print）
press ：to select in turn
Units setting
press ：then press
press and on/off setting
in turn
press back to parameter setting
- 8 -
Initial unit setting：--
press ：
z units
press to select in turn
press ：
back to normal weighing mode
8、KEYPAD：---
ZERO：--
z press ：
tare：--
z
z press
z tare ： can’t operate below zero or
above max capacity
-9 -
Pre-tare：--
press
z press ~ and to
input pre-tare value
z press ：
z tare condition: zero symbol should
display on
0~9 and ●：--
z ~ and
z to load the pre-tare value and
check-weighing
Imput eliminate：--
z press
z in the pre-tare, check-weighing
mode
- 10 -
Weighing function conversion：--
z press
z used for weighing, pcs and % mode
Units conversion:
z press
z for units conversion
Sample in PCS and % mode：--
z in PCS and % mode
z press ~ and
z put on object
z press to sample
print：--
Condition of printing：must be stable. press ：printing LCD display value.
return--
press ：return to weighing mode
Net and total weight conversion：--
press net and total weight conversion
-11 -
accumulate：--
z
z press ，perform accumulation
z accumulation condition：in the stable
conditon; only can accumulate once,
remove objects on the pan and
could accumulate once more; totally
can accumulate for ten times.
z 1 sec later return to normal weighing
mode
z when accumulating more than 10
times，
z means: times of accumulation over
range, 1sec later return to normal
weighing mode
- 12 -
Accumulate display：--
z press ，perform accumulating
display
z press ~ or or to select accumulation time
z press
z means: accumulate the first
accumulation and quantities of
individual accumulation
z press
z means：total weight accumulation,
times of accumulation and quantities
of accumulation
z press back to normal
weighing mode
z when total value of accumulation
over display range, it will show
press to get the accumulation
value
-13 -
Accumulation eliminate：--
z press to carry out
accumulation
z press ~ or or to select time of accumulation
z press
z means：accumulate value of the first
time and individual quantities.
z press to cancel the
accumulation value
z press
z means： total weight, times and
quantities of accumulation
z press to cancel the
accumulation value
z press back to normal
weighing mode
z press to get accumulation
value.
- 14 -
Check-weighing：--
z press
z press 、 、 to select
the check-weighing value
z select check-weighing condition then press ~ and to load check-weighing range
z press to confirm the loading of check-weighing range
z then press back to normal weighing mode, when check-weighing wrong, it will show
z press to cancel check-weighing and back to normal weighing mode
Auto-tare：--
z auto-tare condition: cann’t work below zero or above max
capacity. In the stable condition, max≥2%
z Can not tare constantly (after auto tare, press “tare” to
cancel pre-tare and get new tare value)
z if need another auto tare, clear the pan, press “zero” or
“tare” to re-tare.
-15 -
9、CALIBRATION OPERATION：---
9.1 calibration（six point calibration
）
：
--
operation LCD display
z press to switch on the
machine.
z press
z zero point calibration
z waiting
z place 1/6 of load on ，press ，to perform 1/6 load calibration
z waiting
z place 2/6 of load on，press ，to perform 2/6 load calibration
z waiting
z place 3/6 of load on，press ，to perform 3/6 load calibration
z waiting
z place 4/6 of load on，press ，to perform 4/6 load calibration
- 16 -
z waiting
z place 5/6 of load on，press ，to perform 5/6 load calibration
z waiting
z place full load on，press ，to perform full load calibration
z waiting
z press to return normal weighing mode
9.2 single point calibration：--
operation LCD display
z press to switch on the
machine
z press
z press
z place poise of equivalent weight
-17 -
z waiting for judging the weight
z waiting
z press
z press back to normal
weighing mode
10、COUNT DISPLAY，testing：---
operation LCD display
z press to switch on the
machine
z press
z then press any other key, display
total weight
z press ：display offset value
z press back to normal weighing mode
- 18 -
11、RTC：--
z press to switch on the
machine
z press
z press
z press to choose：on(with RTC)/oFF( without RTC)
z press ：
z press back to normal
weighing mode
-19 -
RTC time display:--
operation LCD display
z press to switch on the
machine
z press
z press
z press to display on turn
z press
z press back to normal weighing mode
- 20 -
RTC time setting::--
operation LCD display
z press to switch on the
machine
z press
z press
z press to display in turn
z press ~ from let to right
to load time, press to
confirm
z press
z press back to normal weighing mode
-21 -
12、ERROR MESSAGE:---
12.1、 errou message:
message problem
Err5
Over load（max capacity +9e）
ACC.ov Times of accumulation over 10 times
over Display value over range
Battery symbol Low battery
12.2、trouble shooting：---
when Error message Trouble shooting
Power on Battery symbol appear Charge the battery
Normal weighing mode Err5 Check if weighing object over the capacity +9e,Err
13、specifications：---
(normal type)
mode：
1530 3075 7515 1530K
Max. Cap：
0g~1500g 1500g~3000g 0g~3000g 3000g~7500g 0g~7500g 7500g~15000g 0g~15000g 15000g~30000g
Resolution： kg
0.0001kg 0.0002kg 0.0002kg 0.0005kg 0.0005kg 0.001kg 0.001kg 0.002kg
Resolution： g
0.1g 0.2g 0.2g 0.5g 0.5g 1g 1g 2g
Linearity：
±2d ±2d ±2d ±2d
Repeatability：
0.1g 0.2g 0.2g 0.5g 0.5g 1g 1g 2g
Internal resolution：
0.01g 0.02g 0.05g 0.1
LCD： LCD Display LED backlight 6 1/2 Digits。With 24.5 mm digits
dimension：
300X320 cm
pan：
300X200 cm
adaptor： DC12V 300mA Adaptor、6V4A rechargeable battery
resolution 1/7,500 1/6,000
Keypad：
25 key
Protect device：
Over load and transportation protect
Wind shields：
yes
Function
Check-weighing, weight accumulation（10times）
Pre-tare、linearity calibration,（six point 1/6 max、2/6 max、3/6 max、4/6 max、5/6 max、max）
Soft-ware filtering, units conversion, printing setting, auto average
temperature：
0°c~40°c
RS-232： Bi-direction and dual-direction, could connect PC、SH-24、TDP-643 printer、SCR
RELAY
HI、 LO 、OK RELAY output module
- 22 -
(high resolution and filter type)
mode：
3000 7500 15K 30K
Max. Cap：
0g~3000g 0g~7500g 0g~15000g 0g~30000g
Resolution： kg
0.0001kg 0.0002kg 0.0005kg 0.001kg
Resolution： g
0.1g 0.2g 0.5g 1g
Linearity：
±2d ±2d ±2d ±2d
Repeatability：
0.1g 0.2g 0.5g 1g
LCD： LCD Display LED backlight 6 1/2 Digits。 With 24.5 mm digits
dimension：
300X320 cm
pan：
300X200 cm
adaptor： DC12V 300mA Adaptor、6V4A rechargeable bettery
resolution 1/15,000
Keypad：
25 key
Protect device：
Over load and transportation protect
Wind shields：
yes
function
Check-weighing
weight accumulation (10 times)
Pre-tare, linearity calibration( six point, 1/6 max、2/6 max、3/6 max、4/6 max、5/6 max、max)
soft-ware filtering、units conversion, printer setting and auto average
temperature：
0°c~40°c
RS-232： Bi-direction and dual-direction、can connect with PC、SH-24、TDP-643 printer、SCR
RELAY
HI、 LO 、OK RELAY output
bi-direction RS-232 interface
14、RS-232 output format：---
Remarks for Dual output:1. data can be sent in dual direction when you choose Prt.Pr,
2. it equals with pressing when computer send “Z”to scale;
it equals with pressing when computer send “T”to scale;
it equals with pressing when computer send “R”to scale;
SCALE
單向
DSUB9
5
9
4
8
3
7
2
6
1
SCALE
雙向
DSUB9
5
9
4
8
3
7
2
6
1
TXD1
RXD1
GND
TXD2
GND
BI-DIRECTION DSUB9
UNI-DIRECTION DSUB9
-23 -
RS-232 serial interface
The 9PIN interface in the right back is the standard interface of RS-232, 3rd PIN is output, 5th PIN is grounded，the rest is
useless.
BAUD RATE：9600 bps DATA BIT：8 PARITY BIT：N﹝ONNE﹞ STOP BIT：1 CODE：ASCII
BIT FORMAT：
LSB MSB
0 1 2 3 4 5 6 7
START BIT DATA BIT STOP BIT
DATA FORMAT：(Prt.Co)
N ● W ● : +/- k g CPLF
T ● W ● : +/- k g CPLF
G ● W ● : +/- k g CPLF
e.g.
N.W.: 1.000 kg
T.W.: 0.050 kg
G.W.: 1.050 kg
DATA FORMAT：(Prt.Co)
N ● W ● : +/- g CPLF
T ● W ● : +/- g CPLF
G ● W ● : +/- g CPLF
e.g.
N.W.: 1000 g
T.W.: 50 g
G.W.: 1050 g
DATA FORMAT：(Prt.Co)
N ● W ● : +/- l b CPLF
T ● W ● : +/- l b CPLF
G ● W ● : +/- l b CPLF
e.g.
N.W.: 1.000 lb
T.W.: 0.050 lb
G.W.: 1.050 lb
DATA FORMAT：(Prt.Co)
N ● W ● : +/- o z CPLF
T ● W ● : +/- o z CPLF
G ● W ● : +/- o z CPLF
e.g.
N.W.: 1.000 oz
T.W.: 0.050 oz
G.W.: 1.050 oz
DATA FORMAT：(Prt.Co)
N ● W ● : +/- T - J i n g CP LF
T ● W ● : +/- T - J i n g CP LF
G ● W ● : +/- T - J i n g CP LF
e.g.
N.W.: 1.000 T-Jing
T.W.: 0.050 T-Jing
G.W.: 1.050 T-Jing
- 24 -
DATA FORMAT：(Prt.Co)
N ● W ● : +/- H - J i n g CP LF
T ● W ● : +/- H - J i n g CP LF
G ● W ● : +/- H - J i n g CP LF
e.g.
N.W.: 1.000 H-Jing
T.W.: 0.050 H-Jing
G.W.: 1.050 H-Jing
DATA FORMAT：(Prt.Co)
N ● W ● : +/- t l . t CP LF
T ● W ● : +/- t l . t CP LF
G ● W ● : +/- t l . t CP LF
e.g.
N.W.: 1.000 tl.t
T.W.: 0.050 tl.t
G.W.: 1.050 tl.t
DATA FORMAT：(Prt.Co)
N ● W ● : +/- t l . H CP LF
T ● W ● : +/- t l . H CP LF
G ● W ● : +/- t l . H CP LF
e.g.
N.W.: 1.000 tl.H
T.W.: 0.050 tl.H
G.W.: 1.050 tl.H
DATA FORMAT：(Prt.Co)
N ● W ● : +/- P C S CPLF
T ● W ● : +/- P C S CPLF
G ● W ● : +/- P C S CPLF
e.g.
N.W.: 1000 PCS
T.W.: 50 PCS
G.W.: 1050 PCS
DATA FORMAT：(Prt.Co)
N ● W ● : +/- % CPLF
T ● W ● : +/- % CPLF
G ● W ● : +/- % CPLF
e.g.
N.W.: 1000 %
T.W.: 50 %
G.W.: 1050 %
DATA FORMAT：(Prt.St Prt.Pr)
A c c ● X X
N ● W ● : +/- X X X X X X CP LF
A c c ● A l l X X
N ● W ● : +/- X X X X X X CP LF
e.g.
HAWXXXX
N/S:XXXXXX
Acc.01
N..W.: 1.000 XX
Acc.ALL01
N..W.: 1.000 XX
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