Programmable Mathematics Unit PC configurable maths function Two isolated inputs and one isolated output 3-port isolation to 500 or 1000Vdc High accuracy, low cost Ultra compact, only 22mm wide Optional alarm relays MATHSCON PRICE INFORMATION AND ORDERING 3 Year Guarantee Options and ordering codes MATHSCON TRIP - JJJX - 6 Options With alarm relays Comms RS232 TRIP Without alarm relays D RS485 Description The MATHSCON Isolating Signal Converter can be user configured and programmed using a PC via the serial communications by using the RS232 or RS485. Each channel can be multiplied by a factor or linearised and then any of the following functions can be performed on those input channels. Addition Output = A + B Subtraction Output = A - B Multiplication Output = A x B Division Output = A / B Square root Output = A Squarer Output = A2 Rect' weir Output = A ^ 3/2 Polynomial Output = xAn(operator)yBm+C (where x, y, n, m and C are PC configurable) High signal select Low signal select Average of the two signals Rate of change limiting of the signal. The unit provides an isolated current or voltage output corresponding to the result of the required function. As an option, two alarm relays are also available. The power supply requirement is 16 to 32Vdc. Inputs The input types and ranges below are our standard ones only. Please contact our sales department for details on any application not specified below. DC Current 0-20mA, 4-20mA, 0-10mA all into 10 DC voltage 0-1V, 0-10V, 1-5V all into 1M Outputs DC Current Source and Voltage 0-20mA, 4-20mA, 0-10mA into 1k maximum 0-1V, 0-10V, 1-5V into a minimum 500k The MATHSCON is designed to be user configurable, however the units can be supplied factory configured to your specification - Please contact our sales department with the following: Configuration options: Input type: Input range: Output type: Output range: Linearisation: Maths function: Comms option: eg mA, Volt eg 4-20, 0-10V eg mA, Volt eg 4-20mA, 0-10V eg None, , 3/2, 5/2 eg +, -, x, /, average RS232 or RS485 Mathscon Specifications Parameter Supply voltage Supply current Input impedance (volt) Input impedance (mA) Volt drop (mA input) Input resolution Overall accuracy Input accuracy Temperature coefficient Load resistance error Time constant (10-90%) Operating ambient Relative humidity Isolation voltage Surge voltage Notes Min 16V Typ 24V 100mA 1M 10 0.2V 0.001% 0.04% 0.01% 0.1ppm/ 300ms Max 32V 200mA 11 0.22V 0.06% 50ppm/C 1ppm/ -15C 0% 500V Comments At 20mA input Dependent on input type Input to analogue output Input to RS232 comms output 0 < RL < 1k (mA output) See note 60C 90% 1kV option by special request 2.5kV for 50S Transient of 10kV/S Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. Device is protected against reverse polarity connection. Accuracy figures based on an ambient temperature of 20C. The time constant is dependent on which processing options have been selected. 104.5mm 98mm Dimensions and connections 123 Connection details 456 1. Power input -ve 2. Power input +ve 4. Output ground 5. Voltage out +ve 6. mA source out +ve 75mm 7. Input ground 2 8. Voltage input 2 9. mA input 2 789 15. Relay 2 common 16. Relay 2 10. Voltage input 1 11. mA input 1 12. Input ground 1 10 11 12 22.5mm 13. Relay 1 common 14. Relay 1 Typical application Digital comms Loop-Powered Panel meter 4-20mA Flow meter 1 12.5 Flow meter 2 (Flow 1 - Flow 2) >SP Integrate (Flow 1 - Flow 2) +24Vdc PRICE INFORMATION AND ORDERING