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H391

Product catalog summary

Overview:
The H391 Series TEMPCAL® Tester is designed to dynamically test thermal switches and continuous-wire fire detection loops, both on and off aircraft. This device aims to reduce maintenance time, increase aircraft availability, and enhance safety.

Key Features:

Precision testing of thermal switches and continuous-wire fire detection systems.
Solid-state design for reliability and effectiveness.
User-friendly interface requiring minimal training.

Specifications:

Weight: 2 lbs
Dimensions: 9 inches H x 5 inches W x 2 inches D (without case)
Input: 115 VAC (nominal), 50 to 400 Hz
Output: 4A Maximum
Accuracy: ±1 °C in ambient temperatures of 50 to 95 °F; ±2 °C in ambient temperatures of 32 to 130 °F
Input limit: 1112 °F (600 °C)

Functions:

Power: Turns the unit on and off.
°F/°C: Selects temperature display in Fahrenheit or Celsius.
Tone: Controls an audible tone for thermal switch closure/opening.
Output: 4A Maximum with adjustable temperature settings.
NC/NO: Identifies whether the thermal switch is normally closed or open.
LCD Display: Shows temperature settings, probe temperature, thermal switch position, NC/NO selection, tone setting, and probe heating status.

Contact Information:
Howell Instruments, Inc.
8945 South Freeway, Fort Worth, Texas 76140
Website: www.howellinst.com
Phone: 817-336-7411
Fax: 817-336-7874
Email: [email protected]

Catalog excerpts

PORTABLE ENGiNE TEST SETS & TRIMMERS The H391 TEMPCAL® Tester dynamically tests thermal switches and continuous-wire fire detection loops on or off aircraft, reducing maintenance time, increasing aircraft availability and improving safety. Tests thermal switches and continuous-wire fire detection systems with precision Is a solid-state device designed to be an effective and dependable tester Features a user-friendly design that requires little training for new users 1 TEMPCAL® is a registered trademark of Howell Instruments, Inc. .^8945 South Freeway Fort Worth, Texas 76140 www.howellinst.com 817-336-7411 Fax: 817-336-7874 [email protected]

Open the catalog to page 1

Portable engine test sets & trimmers Functions Power Selects temp display in degrees Fahrenheit or degrees Celsius. Turns on and off an audible tone to signal thermal switch closure/opening (as applicable). Increases temp setting. (Holding the + button down will increase digit rate of change for temp setting.) Decreases temp setting. (Holding the - button down will decrease digit rate of change for temp setting.) Identifies to unit whether thermal switch under test is normally closed (NC) or normally open (NO). Display indicates temperature setting, TEMPCAL® Probe temperature in digits, °F or...

Open the catalog to page 2