Turns Ratio for the Field

TR-1: Fully Automatic, Single Phase Transformer Turns Ratio Meter

Description

The TR-1 turns ratio meter was designed to be a rugged and reliable automatic transformer ratio meter for accurate readings with on-site laboratory precision.

This system will test ratios to 4000:1. The design of this test system is based upon the popular Raytech Automatic Three Phase test set: TR-Mark III.

There is no maintenance required. There is no calibration procedure (No potentiometers to turn), due to the utilization of high precision components in the design.

Advanced Protection: Upon powering on, the system initializes itself with a self-calibrating, circuit checking sequence. If any problems are detected during this initialization period, or during operation, the operator is immediately notified. The system constantly monitors the condition of the transformer under test. The TR-1 can even recognize shorted leads and will terminate the test without any damage to the test equipment.

Features

Fully automatic, continuous operation system
System is housed in a rugged, lightweight, waterproof case
Battery-operated instrument, which can be recharged with line voltage, or an optional DC Car Adapter
Reverse Polarity Test
Continuity Test
Test current up to 1A for CT testing
Internal storage for the last 50 test results
RS-232 interface with optional adapter
Pass / Fail Function
Save up to 16 Transformers for comparison
Perform over 1,000 measurements without recharging
Install the TinyFlashLoader software, and you will be able to update the firmware using the optional RS-232 Interface Cable Adapter (TinyFlashLoader software is free to download from the Software page of our website)
5-Year standard warranty

Accuracy

Range	Accuracy in PT Mode (40V)	Accuracy in CT Mode (1…5V)	Resolution
0.8 … 100	±0.08% Rdg ±1 LSD	±0.08% Rdg ±1 LSD	5 Digits
101 … 4,000	±0.08% Rdg ±1 LSD		5 Digits

Current		Accuracy	Resolution
PT-Mode: 0 … 0.1A		±1mA	0.1mA
CT-Mode: 0 … 1A		±1mA	0.1mA


Turns Ratio Range	0.8 to 4,000

Temperature	Operating: -10ºC to 60° C (14°F to 140°F) Storage: -20°C to 70°C (-4°F to 158°F)

See Instruction Manual for more parameters. Specifications subject to improvement at any time.

Specs

Size L: 270 mm (10.62″) W: 245 mm (9.68″) H: 125 mm (4.87″)
Weight: 3.2 kg (7.1 lbs.)
Lithium Ion Battery 14.4V / 2.15 Ah
Input Power: 85 to 264 VAC, 47 … 63 Hz, 12 VDC (optional)
Output Voltage PT Mode: 40 VAC, 10 VAC, 5 VAC, 1 VAC
Output Voltage CT Mode: 1 … 5 VAC auto ranging
Panel Display: LCD Graphic with backlight
Front Panel: Sealed, anodized with a multi-actuation rotary knob
Interface: RS-232 serial (with optional interface adapter)
Memory Storage: Internally stores 50 test results
Temperature: Operating: –10°C to 60°C (14ºF to 140ºF), Storage: –20°C to 70°C (-4ºF to 158ºF)