Data Sheet • Mann Series A u x i l i a r y Powe r e d , S t r a i n G a u g e C o n d i t i o n e r STG The STG converts the signal generated by a resistance bridge strain gauge to a standard analogue signal format. • Remote sensing bridge power supply provides highly stable excitation voltage • Can power bridges up to 4x350Ω at 10V • Tare adjustment and test points to correct for initial loading • Front panel adjustment and test points accurately set the bridge excitation voltage • Highly accurate (0.1% of span) • LED power indication • AC or DC powered • Removable, screw-type, terminal blocks • Compact metal housing % \ Australia Weidmüller Pty Ltd. 43 Huntingwood Drive, Huntingwood NSW 2148 Phone +61 (0) 2 9671 9999 Fax +61 (0) 2 9671 9900 [email protected] www.mannindustries.com.au United Kingdom Other countries Weidmüller Ltd. 1 Abbey Wood Road, Kings Hill West Malling, Kent ME19 4YT Phone +44 1732-877032 Fax +44 1732-873873 [email protected] www.weidmueller.com Weidmüller Interface GmbH & Co. Postfach 3030 32720 Detmold Phone +495231-14-0 Fax +495231-14-2083 [email protected] www.weidmueller.com STG Strain Gauge Conditioner General Technical Data Input Type Resistance bridge strain gauge Input span ranges 1mV to 700mV Input impedance 1MΩ % Bridge excitation voltage Type Remote sensing Excitation voltage 5V or 10V Ripple less than 10mV p/p at full load Drive capability 120mA @ 10V (equivalent to 4 x 350Ω loadcells @ 10V) \ Connections Output Type 4-20mA, 0-20mA and 1-5V (selected by push-fi t jumpers) Current ranges 0-20mA, 4-20mA into 0-1KΩ load Voltage ranges 0-5Vdc, 0-10Vdc, 1-5Vdc (true voltage source to 20mA) Ripple < 20mV peak to peak at maximum load and span Power supply Terminal Signal 1 Sense − 2 Sense + 3 Excitation + 4 Excitation − 5 Not Used 6 Type AC or DC powered (as ordered) 7 Signal + AC 110Vac at 47-63Hz (permissible range 100-132Vac) 240Vac at 47-63Hz (permissible range 200-264Vac) 8 Signal − 9 Not Used DC 24Vdc (permissible range 20-28Vdc) 10 Neutral (−) Power Usage AC 3VA or 3W at 24Vdc 11 Live (+) 12 Not Used Adjustments Bridge Excitation Voltage Input signal Type 20-turn potentiometers 13 Output + Span 45-105% of nominal span 14 Output − Zero ±10% of nominal span Tare ±100% or 0-200% of input span Bridge excitation ±10% of nominal voltage Power Supply Output signal 15 Not Used 16 Case Earthing is via a stud on lower side of case Note: only the power supply is isolated. General Linearity Typically ±0.05% of span Repeatability ±0.05% of span Dimension drawing Temperature drift Typically 0.02% span/°C Long term drift 0.1% per 10,000 hours Frequency response -3dB point = 5Hz, optional 1KHz Response time 200 mS for 10-90% output change, optional 1ms RIGHT HAND SIDE VIEW 96 mm Insulation Co-ordination Ports Input & Output / Power Supply / Case Rated Insulation Voltage 300Vrms Overvoltage Category III Impulse Withstand 4kV (1.2 / 50) Isolation 2 kV (between ports) TOP VIEW Environmental Conditions 46 mm Operating temperature 0 to 60 °C Storage temperature –25 to +70 °C Pollution Degree 2 Relative humidity 10–90% (non–condensing) Effective depth : 120mm (Top Hat 35mm +/- 0.3, DIN 46277-3, EN 50022) 125mm (G - Rail 32mm +/- 0.3, DIN 46277-1, EN 50035) To surface (including rail/mounting plate) Housing Type Anodised Aluminium Enclosure with protective earth Ordering Information Dimensions See diagram 0.45Kg Type (Model 1/2/3/4 - See key below) Cat. No. Weight STG 10V/2mV/V/4-20mA/24Vdc 7940011671 Connection type Plug in terminal blocks with screw connections Approvals STG (DC powered only) Page 2 Mark Standard \ E256486 CAN/CSA C22.2 No. 1010.1:92 UL61010-1: 2004 % LV Directive EMC EN50178:1998 BS EN 61326:1998 + A2 Note: For other ranges please specify STG/1/2/3/4 where: 1 - Bridge excitation voltage 2 - Bridge sensitivity 3 - Output signal format 4 - Power supply voltage Subject to technical alterations without notice • Printed in Australia • 7940015659 • 06/2005