Inscale TFC 150 User manual

TFC SERIES
Inscale Measurement Technology Ltd
Tel: Fax:Email:
[phone] [phone] [e-mail]
7 Heron Close, St. Leonards-on-Sea. East Sussex TN38 8DX United Kingdom
Http:www.inscale-scales.co.uk
Solutionsin Weighing Technology
Inscale Measurement Technology Ltd follows a policy of continuous improvement and reserves the right to change specifications without notice. © October 2002

INTRODUCTION
The TFC series of scales provides an accurate, fast and versatile series of counting
and check-weighing scales. There are 2 series of scales within the range, TFC scales
are Kilogram only scales and the TFCa range are changeable from pounds to
kilograms. The scales in these series share the same functions but special instructions
will be given for the TFCa series to account for the ability to change weighing units.
There are 3 models in each series, with capacities up to 300 kg. / 660 Lb.
They all have stainless steel weighing platforms on an Steel base assembly and a
display module mounted on a pillar attached to the base.
All the keypads are sealed, colour coded membrane switches and the displays are
large easy to read liquid crystal type displays (LCD). The LCD’s are supplied with a
backlight.
All units include automatic zero tracking, audible alarm for pre-set weights, automatic
tare, pre-set tare and an accumulation facility that allows the count to be stored and
recalled as an accumulated total.

SPECIFICATIONS
TFC SERIES
Model # TFC 60 TFC 150 TFC 300
Maximum
Capacity 60kg 150kg 300kg
Readability 5g 10g 20g
Resolution 1:15.000 1:15.000 1:15.000
Minimum
Capacity 100g 200g 400g
Repeatability
(Std Dev) 5g 10g 20g
Linearity ± 10g 20g 40g
Units of
Measure kg
TFCa SERIES
Model # TFC 130a TFC 330a TFC 660a
Maximum
Capacity 130Lb/60kg 330Lb/150kg 660Lb/300kg
Readability 0.01Lb/5g 0.02Lb/10g 0.05Lb/20g
Resolution 1:13,000 / 1:15.000 1:16,500 / 1:15.000 1:13,200 / 1:15.000
Tare range -100Lb/-60kg -330Lb/-150kg -660Lb/-300kg
Minimum
Capacity 0.2Lb/100g 0.4Lb/200g 1Lb/400g
Repeatability
(Std Dev) 0.01Lb/5g 0.02Lb/10g 0.05Lb/20g
Linearity ± 0.02Lb/10g 0.04Lb/20g 0.10Lb/40g
Units of
Measure Lb/kg

Common Specifications
Interface RS-232 Output Optional
Stabilisation
Time 2 Seconds typical
Operating
Temperature 0°C - 40°C 32°F - 104°F
Power supply 9Vdc from external power supply
Calibration Automatic external
Display 3 x 6 digits LCD digital display
Draft shield N/A
Balance
Housing Indicator ABS Plastic, Base Steel with Stainless Steel platform
Pan Size 425mm x 525mm / 16.7" x 20.7"
Overall
Dimensions
(wxdxh) 425mm x 700mm x 950mm / 16.7" x 27.5" x 37.5"
Gross Weight 28kg/62lb
Applications General Purpose Parts counting Scale
Functions kilogram weight, parts counting, accumulating memory, preset count with
alarm
Other
Features and
Specs
accuracy enhancement for parts counting, internal rechargeable battery (~70
hours operation)

INSTALLATION
GENERAL INSTALLATION
The scales should be sited in a location that will not degrade the accuracy.
Avoid extremes of temperature. Do not place in direct sunlight or near air conditioning
vents.
Avoid unsuitable tables. The tables or floor must be rigid and not vibrate. Do not place
near vibrating machinery.
Avoid unstable power sources. Do not use near large users of electricity such as
welding equipment or large motors.
Avoid high humidity that might cause condensation. Avoid direct contact with water. Do
not spray or immerse the scales in water.
Avoid air movement such as from fans or opening doors. Do not place near open
windows.
Keep the scales clean.
Do not stack material on the scales when they are not in use.
INSTALLATION of TFC SERIES
The pillar is attached to the base using a bracket that must first be attached to the base
frame using the 4 bolts supplied. The Pillar is secured to the bracket using 2 set
screws. The cable from the base to the indicator module is run through the tube, out
through the plastic support at the top. Excess cable can be stored within the tube.
The TFC Series comes with a stainless steel platform packed separately. Place the
platform in the base.
Level the scale by adjusting the four feet. The scale should be adjusted such that the
bubble in the spirit level is in the centre of the level and the scale is supported by all
four feet. If the scale rocks readjust the feet.

Attach the indicator module to the pillar by sliding it over the bracket with the flanges
engaged in the groves on the base. Attach the cable from the base to the connector
on the rear of the indicator.
Attach the power supply module to the connector on the side of the indicator. The
power switch is located next to the connector.

KEY DESCRIPTIONS
0-9, •
Numeric entry keys, used to manually enter a value for tare weights, unit weight, and
sample size.
CE
Used to clear the unit weight or an erroneous entry.
Zero or
Set the zero point for all subsequent weighing. The display shows zero.
Tare or
Tares the scale. Stores the current weight in memory as a tare value, subtracts the tare
value from the weight and shows the results. This is the net weight. Entering a value
using the keypad will store that value as the tare value.
M+ or
Add the current count to the accumulator. Up to 99 values or full capacity of the weight
display can be added.
MR
To recall the accumulator memory.
Smpl or
Used to input the number of items in a sample.
Unit Wt or
Used to enter the weight of a sample manually.
PST or
To set the upper limit for the number of items counted. When this upper limit is
exceeded the scale will sound the beeper. Backlight control setting.
Print or
To print the results to a PC or printer using the optional RS-232 interface.
TFCa SCALES ONLY
Kg/Lb key in place of Unit Weight key.
This key will select the weighing unit when the unit weight display is at zero. Or
acts as the Unit Wt key to enter known unit weights manually.

DISPLAYS
The scales have three digital displays. The displays show WEIGHT, UNIT WEIGHT and
QUANTITY.
WEIGHT DISPLAY
A 5 digit display to indicate the weight on the scale.
Arrows above symbols will indicate the following:
Low battery,
Net Weight Display, "Net"
Stability indicator, "Stable" or
Zero Indicator, "Zero" or
And in the TFCa models indications for kilogram "Kg" or Pound "Lb" units.
UNIT WEIGHT DISPLAY
This display will show the unit weight of a sample. This value is either input by the user
or computed by the scale. The unit of measure is grams on all scales with kilogram
weight units or in pounds on scales that show pounds.
Indicators will show when the scale has determined that there is an insufficient number
of samples to accurately determine the count: "Sample" or symbol.
Net
Memory Charging
Weight Unit Weight Count pcs
Lb. Kg.
Stable Zero
Sample Preset U. W eight
g
Net Memory Charging
Weight Unit Weight Count pcs
  
  
TFCa
Type
with
Lb/Kg
indicators
TFC Type
with
symbols