SMART POWERED STRAIN BRIDGE/ LOAD CELL CONDITIONER SEM1600B SUITABLE FOR LOAD CELL / STRAIN GAUGE APPLICATIONS INPUT POWER OUTPUT UNIVERSAL CURRENT, BIPOLAR VOLTAGE OUTPUTS TARE USB INPUT RANGE (0.2 to 7.5) mV/V , 5 V EXCITATION V POWERED (10 to 32) V AC or (10 to 48) V DC SUPPLY (2 to 6) POINT CALIBRATION WITH ACTIVE SET OPTION REMOTE TARE, FRONT PANEL PUSH BUTTON CONFIGURATION V USB PROGRAMMABLE INTRODUCTION The SEM1600/B is a smart powered bridge amplifier for use with strain gauges or load cell signals. The product has a built in capability to scale the input signal to a process value while the output stage offers either voltage, bipolar voltage or active / passive current re-transmission signals. The product comes with an AC/DC power supply that will operate in the range (10 to 48) V DC and (10 to 32) V AC making the device ideal for battery operation. An additional volt free contact input is available for tare setting using a remote switch. The high precision input stage of the device allows for a bridge excitation voltage of 5V DC to be used as opposed to the traditional 10V DC. This reduces the power requirement for the bridge supply and up to four bridges (cells) may be connected to the input. The device is provided with two front panel push buttons that can be configured to perform one of two functions or be disabled. Set as function 1, the buttons allow the user to push button configure the output range at high and low scale against a live input signal, set as function 2, the buttons allow the operator to trim the output at high and low scale. The device uses ratio metric measurement to obtain high stability. The product uses a USB port for configuration, together with a simple to use menu driven software configuration tool, allowing the user to take advantage of the products comprehensive specification. Additionally, the user may read live process data when connected to the PC, allowing for offset and span calibration. If configuration is not specified at the time of order, the product will be shipped with the default range 2 mV/V input (4 to 20) mA output. SMART POWERED STRAIN BRIDGE/ LOAD CELL CONDITIONER + SPECIFICATION 20 C BRIDGE INPUT + Full Range (-7.6 to 7.6) mv/V (-38 to 38) mV 5V excitation Bridge Type Four Wire ratiometric Input Drift < 0.05 % Linearity 0.01 % Update Selectable, 10 or 80 SPS (samples per second) BRIDGE EXCITATION Voltage 5 Volts DC 0.1 V 59 mA Bridge Impedance Total (85 to 10000) (operates with four 350 cell in parallel) TARE INPUT Type Remote volt free contact, up to 10 metres distance OUTPUT CURRENT Current Source Range (0 to 21.5) mA , Max Load 750 Output Current Current Sink Range (0 to 21.5) mA , Supply (10 to 30) V dc, Voltage effect 0.2 uA/V Accuracy (mA Out/ 2000) or 5 uA which ever is the greater, Drift 1 uA/C OUTPUT VOLTAGE Range (0 to 10.1) V or (-10.1 to 10.1) V, Accuracy 5 mV Current Drive 2 mA, Min load 5000 10 V PUSH BUTTON CONFIGURATION Type Independent Low High front panel push buttons allow user to manually set low and high output points. SUPPLY Range (10 to 48) VDC , (10 to 32) VAC Protected by internal 500 mA resettable fuse. Power < 1 W Full Power GENERAL Response Time <200 mS (10 SPS), <50 mS (80 SPS) Isolation Supply to input to output 500 V dc. Indication LED, Green when output (-0.1 to 100.1) %, else red USER INTERFACE Type USB 2.0, USB SpeedLink Baud rate 19,200 baud Equipment PC running windows XP or later, USB cable(A to mini B). USER INTERFACE FUNCTIONS Calibration Scaling (2 to 6) points signal against process Filter (1 to 20) Seconds to reach 70 % of final value Tare Remote set tare offset with programmable user set point. Active Calibration Active Calibration against live load cell Process Units 4 Characters Tag Number 20 Characters Process Output Process Output Range Signal Output Select type, signal range 70C Active scaling output Set output process range against active sensor input >= IP65 Sensor Information Model, sensitivity and balance ENVIRONMENT -30C Operating Ambient (-30 to 70) C (10 to 90) %RH (non condensing) Storage Ambient (-30 to 70) C (10 to 90) %RH (non condensing) Configuration Ambient (10 to 30) C Installation Enclosure DIN Rail enclosure offering Protection >= IP65. APPROVALS CE BS EN 61326 MECHANICAL Style DIN 43880, Colour grey, material Polyimide 6.6, weight < 70 grams Terminals 2.5 mm Maximum Order code: SEM1600B Status Instruments Ltd Tel: +44 (0)1684 296818 Status Business Park Fax: +44 (0)1684 293746 Gannaway Lane, Tewkesbury Email: sales status.co.uk Gloucestershire, UK Website: www.status.co.uk GL20 8FD D2554-01-01 SEM1600B DATA SHEET