Gram C7 Series User manual
SERIES
C7
3T / 5T / 10T
OPERATION MANUAL
2
INDEX English
Main specification 3
Analog 3
Display 3
Ambient Environment 3
Front and back view of the indicator 4
Keys function 4
Operation 5
Turning on 5
Zero function 5
Tare 5
Manual accumulation 5
Check accumulation 6
Clear accumulation 6
Parameters setup 6
Calibration 8
Error indication 9
Rechargeable lithium battery 10
Maintenance 10
Guarantee 12
3
ENGLISH
MAIN SPECIFICATION
Analog
Accuracy: n=3000
Input Signal: 1.5~3mv/V
Converting Speed: 10 times/second
Display
Display: 0~999999
5 digits LCD/LED, 7 indicators
Division Value: 1/2/5/10/20/50 (optional)
Ambient Environment
Distance between scale and indicator: 150m
Power Supply: DC: 3.7V
Ambient Temperature: 0~40 ºC
Storing Temperature: -25 ºC ~55 ºC
Ambient Moisture: ≤ 85% RH
Warm-up Time: 10~15 分钟
4
FRONT AND BACK VIEW OF THE INDICATOR
KEYS FUNCTION
In weighing status hold the key for more than 5s, it enters setup mode
(All the setting in this mode should be recorded with the calibration
header on; or the data will lose).
Tare function in weighing status.
Zero function in weighing status.
For selecting.
Weighing accumulation
Long press for 1sec to turn on. Long Press for 3sec to turn off.
5
OPERATION
Turning on
Turn on the power, the indicator performs self-checking and go into weighing mode.
Zero function
Press for zero return, indicator returns to zero within the zero range 2%FS.
Please make sure the stabilization light is on when zero operation.
If obstruction occurs by more than 1 wireless indicator working at same time,
you can open both indicator and scale, change the number of transcoder
inside with same number and restart.
Tare
At weighing mode, press to deduct displaying weight while it is positive
and stabilization light is on. At no-load status of the scale, press to
deduct tare and then tare light is off.
Manual accumulation
At weighing mode, press , it displays “ADD-01”, “01” means times of
accumulation (the Max times is 99 and then it will return to 01). After then
it will display the value of accumulation for 3s and then back to normal
weighing mode by itself.
6
Check accumulation
At weighing mode, press , it will display the times and the value of current
accumulation, after then back to normal weighing mode automatically.
Clear accumulation
At weighing mode, press , it displays “ADD---” and back to weighing
mode which means clear the current accumulation.
PARAMETERS SETUP
In weighing status, hold for more than 5s and entering setup mode. (P
mode, all the setting in this mode should be recorded with the calibration
header on; or the data will lose.)
P1~P13 parameters are available, press to switch, and press to
select parameter. Detail for parameter:
1. P1 x kg Lb shift
X=1: kg mode (default)
X=2: Lb mode
2. P2 x Not available for this model
3. P3 x Baud rate setup
X=1: 9600 (default)
X=2: 4800
X=2: 2400
X=2: 1200
7
4. P4 x Not available for this model
5. P5 x Not available for this model
6. P6 x Power saving mode
X=1: No power saving
X=2: Power saving available
X=3: None
7. P7 x Zero-tracking Scope
X=1: 0.5e
X=2: 1.0e
X=3: 1.5e (default)
X=4: 2.0e
X=5: 2.5e
X=6: 3.0e
X=7: 3.5e
8. P8 x Zero key Scope
X=1: 2%FS
X=2: 4%FS
X=3: 10%FS (default)
X=4: 20%FS
9. P9 x Zero scope upon start
X=1: 2%FS
X=2: 4%FS
X=3: 10%FS (default)
X=4: 20%FS
8
10. P10 x Digital filtering intensity
X=1: Fast (default)
X=2: Middle
X=3: Slow
11. P11 x Stabile time
X=1: Fast (default)
X=2: Middle
X=3: Slow
12. P12 x Stabile extent
X=1: Low
X=2: Middle
X=3: High (default)
13. P13 x Select division value
X is division value
Press to select division value, then press to confirm.
CALIBRATION
Turn on the crane scale first, then hold key and power on the indicator
secondly, it enters calibration mode.
Step Operation Display Explanation
1Press to choose
division value (several times)
[d *]
Division value: 1, 2, 5, 10, 20, 50
optional, press to confirm
e.g.: 2
2
Press to choose
decimal point position
(several times)
[P *]
Decimal point optional: “0”,
”0.0”, ”0.00”, ”0.000”, press
to confirm. e.g.: 0.00
9
3Setup F.S. [FULL ]
Input F.S.:Press to choose
the digit bit; press to select
the digit; press to confirm
the input F.S. e.g.: 30000
4Zero point calibration:
Press when the stable
light is on
[noLoAd] Assure there’s no loading
5Load standard weights.
6
F.S. calibration: (Press
directly if the value to be
input is same as F.S. when
stable light is on)
[AdLoAd]
Input weight of standard weights
loaded: Press to choose
the digit bit; press to select
the digit. Until the input value is
same as the loaded weight and
the digit bit is at the highest bit,
press to confirm when the
stable light is on.
7Calibration finished.
ERROR INDICATION
1Err 1 AD value is too small when calibration.
2Err 2 Zero point is out of range when calibration.
3Err 3 Zero point is out of range when power on
4Err 5 Weight input is 0 when full scale calibration
5bAt-Lo Indicator out of battery, please charge!
6Err 8 Mistakes in inputting F.S.
7Err 10 Resolving capability is too high
10
8Err 11 Load-cell problem
9Err 13 Resolving capability is too high
10 Err 14 Damaged inside indicator
11 Loch Overload and locked
RECHARGEABLE LITHIUM BATTERY
Battery inside of scale is Lithium battery. Please charge it after running
down for 7 hours the first three times. Please charge the battery for timing
if not use it often.
The battery is an easily exhausted product. And it is not granted free
guarantee.
MAINTENANCE
1. To guarantee indicator clarity and using life, the indicator shouldn’t be
placed directly under sunshine and should be set in the plain space.
2. The indicator can’t be placed into the place where the dust pollution and
vibration are serious.
3. Load cell should connect with indicator reliably, and the system should
be well connected into ground. The indicator must be protected from
high electrical field and high magnetic field.
In order to protect the operator, indicator and relevant device, you should
mount lightning rod in thunderstorm frequently happening area.
• Load cell and indicator are static sensitive device, you must adopt
anti-static measures.
4. It is strictly forbidden to clean the case of indicator with intensive solvents
(for example: benzene and nitro oils).
This manual suits for next models
3
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