Photo Courtesy of Department of Defense The H261Temperature indicator Tester accurately tests calibration and operation of servo-powered and D'Arsonval temperature indicators. The H261 Temperature Indicator Tester: • Simulates thermocouple, resistance temperature devices (RTD's) and other millivolt transducer signals , . • Troubleshoots thermocouples and millivolt sources ■ ' by measuring their outputs il • Measures thermocouple circuit resistance • Includes synchro input/output circuits to ft provide testing and troubleshooting of synchro B temperature indicator transmitters and receivers B (model H261-11) • Tests three types of RTD's • 90.38 ohm nickel probe (range: -70 to 300 °C) • 50.00 ohm nickel probe (range: -50 to 300 °C) ^ ■ " • 50.00 ohm platinum probe (range: -70 to 100 °C) T*—- Servo type indicators, requiring AC or DC power, are powered by adapters that have external power connections. ' ' .^8945 South Freeway Fort Worth, Texas 76140 www.howellinst.com 817-336-7411 Fax: 817-336-7874 [email protected]

ZERO ADJUST Portable engine test sets & trimmers COARSE FINE T/C - MV TEMP. ADJ. In testing D’Arsonval indicators, the H261 simulates thermocouple signals for testing 8, 15, 22 and 25 ohm indicators.C DEG. DISPLAY TEST H261 Temperature Indicator Tester Four thermocouple curves are available for testing D’Arsonval or servo type indicators: BATTERY ACCESS RESISTANCE CABLES ACCESSORY STOAGE IN LID TF-30 (range: –10 to +1500 °C) T CU/CON (range: –100 to 400HINGES °C) SLIP (5 IN.) TEST INPUT CARRYING HANDLE RESISTANCE THERMOMETER BATTERY CHARGE LEFT & SINGLE ZERO ADJUST The unit is furnished with...