Salter Brecknell WB-521 Series - Manual (Page 17)

SBI521 Service Manual 15
2.3 Power Supply
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100 - 240 VAC, 50/60 Hz AC adapter
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6V 4.0AH lead-acid rechargeable battery
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Battery charging Circuit: built-in
2.4 Display
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SBI-521: 7-digits,7-segment, 0.7'' (17mm) ultra brightness LEDs with 16
annunciators
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SBI-521: 6-digit,7-segment, 1"(25mm) LCDs with 16 annunciators and
backlight
2.4.1 Keypad
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6 push buttons
2.4.2 Environment
2.4.3 Load Cell Excitation
Model Working Current
SBI-521 ≤
100mA (use battery, no load-cell, no adaptor, LED.BRT is set to 2)
SBI-521 ≤
45mA (use battery, no load-cell, no adapter, backlight is on)
Working temperature -10°C to 40°C
Storage temperature -20°C to 70°C
Humidity 10 to 90% RH without condensation
Protection IP65
Voltage 5VDC
Max. Current 120mA (can power 8-350 ohm bridge)
Signal connection 4 or 6 lead with sense leads
Max Sensitivity -3mV/V to +3mV/V