FX21 User Manual V5.01+ 14Dec07 Page 13
5. SPECIFICATIONS
Supply Voltage: Nominal .... 12V DC
Maximum .... 19V DC
Reverse polarity protection diode fitted.
Low Battery Indication: Below 11.4 Volts the LOW BAT pointer will be on.
The FX21 switches off at approximately 10 Volts.
Supply Current: Approximately 110 mA including loadbar set.
Temperature Range: -5ºC to +50ºC
Zero Tracking: Small residual weights left on the scale between weighings (dirt build
up) are automatically 'zero-tracked' out and the scale restored to
zero. As this occurs the ZERO pointer will indicate that ZERO has
been reached.
The zero-tracking amount is set to 0.5% of the weight displayed after
the last press of the WEIGH key, with a 2.2 kg maximum.
At switch-on the zero-tracking amount is initialised to 0.015% of
capacity (0.3 kg for 2000 kg loadbar set).
Resolution: Autoranges in graduated steps from the zero point of the scale.
Scale 1:
Standard Loadbars Metric Model Resolution Imperial Model Resolution
0 - 20 kg 0.1 kg 0 - 40 LB 0.2 LB
20 - 50 kg 0.2 kg 40 - 100 LB 0.5 LB
50 - 200 kg 0.5 kg 100 - 400 LB 1 LB
200 - 500 kg 1 kg 400 - 1000 LB 2 LB
500 - 2000 kg 2 kg 1000 - 4000 LB 5 LB
Minimum Capacity: 20 kg (The 0-20kg range is available but is not part of the EMC
specification).
Scale 2:
Vet Scale 0 - 100 kg 0.05 kg 0 - 200 LB 0.1 LB
100 - 300 kg 0.1 kg 200 - 600 LB 0.2 LB
Scale 3:
Heavy-Duty Loadbars 0 - 100 kg 0.5 kg 0 - 200 LB 1 LB
100 - 200 kg 1 kg 200 - 400 LB 2 LB
200 - 1000 kg 2 kg 400 - 2000 LB 5 LB
1000 - 3000 kg 5 kg 2000 - 6000 LB 10 LB
Accuracy: ± 0.5% of Displayed Reading ± 1 Division (where 1 division is
0.1kg, 0.5kg etc depending on weight range)
RF Immunity: Maximum additional error in a 3V/m RF field in the range 27 -
500 MHz is : ± 2 divisions for 20 – 50kg
± 1 division for 50 – 200kg
± 0 division for 200 –2000kg
EMC Approvals: Meets or exceeds the following standards:
IEC801-2 Electrostatic discharge
EN50081-1 Free radiation measurements
EN50082-1 RF immunity
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