Technical specifications

Mode of operation

Measuring principle

Strain gauge load cells measuring load on belt conveyor idlers

Typical application

Mobile crusher systems

Measurement accuracy

Accuracy¹⁾

• ± 0.5 … 1 % of totalization over 25 … 100 % operating range, application dependent
• ± 2 % of totalization over 25 … 100 % operating range on mobile crusher applications

Repeatability

± 0.1 %

Belt design

Belt width

• Up to 1 600 mm (60 inch CEMA) width
• Refer to the outline dimension section

Belt speed

Up to 4 m/s (800 fpm)²⁾

Capacity

Up to 2 400 t/h (2 640 STPH) at maximum belt speed

Conveyor incline

• ± 20° from horizontal, fixed incline
• Up to ± 30° with reduced accuracy³⁾

Idlers

Idler profile

• Flat to 35°
• To 45° with reduced accuracy³⁾

Idler diameter

100 … 150 mm (4 … 6 inch)

Idler spacing

0.6 … 1.2 m (2.0 … 4.0 ft)

Load cell

Construction

17-4 PH (1.4568) stainless steel construction with 304 (1.4301) stainless steel cover

Degree of protection

IP67, IP65 on hazardous approved models

Cable length

3 m (10 ft)

Excitation

10 V DC nominal, 15 V maximum

Output

2 mV/V excitation at rated load cell capacity

Non-linearity and hysteresis

0.02 % of rated output

Non-repeatability

0.01 % of rated output

Capacity

25, 50, 100, 250, 500 lb stainless steel

Overload

150 % of rated capacity, ultimate 300 % of rated capacity

Temperature

• -50 … +75 °C (-58 … +167 °F) operating range
• -40 … +65 °C (-40 … +150 °F) compensated

Weight

Up to 20 kg (44 lb), 10 kg (22 lb) per side

Interconnection wiring
(to integrator)

• < 150 m (500 ft) 18 AWG (0.75 mm?) 6 conductor shielded cable
• > 150 m (500 ft) to 300 m (1 000 ft) 18 … 22 AWG (0.75 … 0.34 mm?), 8 conductor shielded cable

Approvals

• CSA/FM Class II, Div. 1, Groups E,F,G and Class III
• ATEX II 2D, Ex tD A21 IP65 T90 ?C
• EAC Ex
• IEC Ex, Ex tD A21 IP65 T90 ?C
• CE, RCM, EAC, RTN