Description Specifications Description This item has been discontinued and replaced by the T77630-40.The TACHTROL 30 computing tachometer measures input frequency. This dual channel instrument also converts the resulting quantities to an analog output, utility RS485 communication, 2 solid state and 2 mechanical relay functions. The TACHTROL 30 and TACHTROL 10 accept an extensive range of AC or DC power. These instruments have great accuracy, processing speed, response time and can be used in rate period or counter mode.Included FeaturesQuicker Response Time-706 ms (analog), 16.5 ms (mech. Relays), 2ms (dig. Relays)Higher Level of Accuracy - 0.1% (analog), 0.005% (relays)Field Programmable- With TACHLINK or TACHTROL plusDigital Configuration- Approaches real timeAnalog Outputs - 0 -20 mA, 4-20 mA, -20 to 0 to +20 mARelays - (2) mechanical Form C, 6 A @ 277 Vac, (2) solid state Form A 0.4 A @ 60 Vac or DCDigital Display - Will accept (8) TACHTROL plus remote displays9 Computed Functions State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Product Specifications Analog Output Ranges:0 to 20mA, 4 to 20mA, -20 to 0 to +20mA; user selectable Accuracy:Internal instrument accuracy: ±.005%;plus ±.05% of full scale range at room temp with 400 ohm load; ±0.1% over temp range and load range. Unit is factory calibrated. Can be re-calibrated using TACHLINK. Resolution:Step size: 610 nanoamps per lbs. 16 bit D/A Linearity:±0.02% typical Loop Impedance:100-1000 ohms Reponse Time:Input to output 6.55 msec+ 1 msec settle at 1kohms (worst case) to .1% of final value Electrical Isolation:500 Vrms continuous Literature & Docs Accessories