7.4 Input Specifications (only for main unit)Number of input point 1 pointInsulation method Designated insulation for input (insulate to the other functions)Input method Contact/ non-voltage a contact or open-collectorInput signal Non-voltage・Impedance; Max. 1kΩ(when short-circuit current: Max. 10mA)・Residual voltage when shorted; Max. 3V・Impedance when open: Min. 100kΩInput mode Pulse input or synchronized with input from outer deviceMax. counting speed 2000Hz / 30HzMin. input signal width 0.25ms (when 2000Hz is set) / 16.7ms(when 30Hz is set)ON:OFF ratio＝1:1Pre-scale Decimal point Under 3-digitRange 0.001 to 100.000 (set with setting mode)Output mode(when pulse output is selected) HOLDProtective elements Zener diodePulse inputInput signal 1,000 to 99,000 pulse/kWh (set with setting mode)(External pulse converter is necessary.)Pulse rate 0.001 to 100.000 kWh/pulseInput condition2000HzPulse width 0.25ms or morePulse interval 0.5ms or more(OFF time 0.25ms or more)30HzPulse width 16.7ms or morePulse interval 33.4ms or more(OFF time 16.7ms or more)Operationvoltage/current 5VDC 10mAR: resisterC: capacitorBuy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com
