Milltronics SF500 Siemens

Milltronics SF500 operates with any solids flowmeter with up to two strain gauge load cells or LVDT sensor. The SF500 processes sensor signals for accurate flow rate and totalized weight of bulk solids.

Specifications
Power:
• 100/115/200/230V ac ±15%, 50/60 Hz, 31VA
• Fuse, FU1: 2AG, Slo Blo, 2 A, 250V or equivalent
Application
• Compatible with Milltronics solids flowmeters or equivalent 1 or 2 load cell flowmeters
• Compatible with LVDT equipped solid flowmeters, when using the optional interface board
Accuracy • 0.1% of full scale 

Resolution • 0.02% of full scale
Environmental:

Location • Indoor / outdoor
Altitude • 2000m max
Ambient Temperature • -20 to 50 °C (-5 to 122 °F)
Relative humidity • Suitable for outdoor (Type 4X / NEMA 4X / IP 65 enclosure)
Installation Category • II
Pollution Degree • 4
Enclosure • Type 4X / NEMA 4X / IP 65 • 285 mm W x 209 mm H x 92 mm D (11.2” W x 8.2” H x 3.6” D)  • Polycarbonate
Programming • Via local keypad • Dolphin Plus interface
Display • Illuminated 5 x 7 dot matrix liquid crystal display with 2 lines of 40 characters each
Memory • Program stored in non-volatile FLASH ROM, upgradeable via Dolphin Plus interface • Parameters are stored in battery backed RAM. The battery is 3V NEDA 5003LC or equivalent, nominal 5 year life
Inputs
Load Cell/LVDT Conditioning Card • 0 - 45 mV dc per load cell/LVDT Conditioning Card
Auto Zero • Dry contact from external device
mA • See optional mA I/O board below
Auxiliary • 5 discrete inputs for external contacts, each programmable for either: display scrolling, totalizer 1 reset, zero, span, multispan, print, batch, reset, or PID function

Outputs
mA • 1 programmable 0/4 - 20 mA, for rate output • Optically isolated • 0.1% of 20 mA resolution • 750 Ω load max • See optional mA I/O board below

Load Cell/LVDT Conditioning Card • 10V dc compensated excitation for LVDT Conditioning Card or strain gauge type load cells, 2 cells max, 150 mA max

Remote Totalizer 1 • Contact closure 10 - 300 ms duration • Open collector switch rated 30V dc, 100 mA max
Remote Totalizer 2 • Contact closure 10 - 300 ms duration • Open collector switch rated 240V ac/dc, 100 mA max
Relay Output • 5 alarm/control relays, 1 form 'A' SPST relay contact per relay, rated 5 A at 250V ac, non-inductive or 30V dc
Communications • Two RS-232 ports • One RS-485 port • SmartLinx® compatible (see Options below)
Cable
One Load Cell/LVDT • Non-sensing Belden 8404, 4 wire shielded, 20 AWG or equivalent, 150 m (500 ft) max • Sensing Belden 9260, 6 wire shielded, 20 AWG or equivalent, 300 m (1000 ft) max
Two Load Cells • Non-sensing Belden 9260, 6 wire shielded, 20 AWG or equivalent, 150 m (500 ft) max • Sensing Belden 8418, 8 wire shielded, 20 AWG or equivalent, 300 m (1000 ft) max
Auto Zero • Belden 8760, 1 pair, twisted/shielded, 18 AWG, 300 m (1000 ft) max
Remote Total • Belden 8760, 1 pair, twisted/shielded, 18 AWG, 300 m (1000 ft) max
Options
Dolphin Plus • Milltronics Windows based software interface. Refer to associated product documentation.
SmartLinx® Modules • Protocol specific modules for interface with popular industrial communications systems. Refer to associated product documentation.
mA I/O board:
Inputs • 2 programmable 0/4 – 20 mA for PID, control • Optically isolated • 0.1% of 20 mA resolution • 200 Ω input impedance
Outputs • 2 programmable 0/4 – 20 mA for PID control or rate • Optically isolated • 0.1% of 20 mA resolution • 750 Ω load max

Output Supply • Unregulated, isolated 24V dc at 50 mA, short circuit protected
LVDT conditioning card • For interface with LVDT based solids flowmeters (separately mounted)
Weight • 2.6 kg (5.7 lb.)

Approvals • CE1, CSA NRTL/C