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NON-CONTACT 

VOLTAGE DETECTOR 

WITH ADJUSTABLE

SENSITIVITY AND 

IR THERMOMETER

USER’S MANUAL

VR40

Please read this manual carefully and thoroughly 

before using this product.

Summary of Contents for VR40

Page 1: ...NON CONTACT VOLTAGE DETECTOR WITH ADJUSTABLE SENSITIVITY AND IR THERMOMETER USER S MANUAL VR40 Please read this manual carefully and thoroughly before using this product...

Page 2: ...Blister Pack 10 Product Overview 10 12 Setup Instructions 13 Install Batteries 13 Operating Instructions 13 19 Detecting AC Voltage 13 16 Using the IRT to Measure Temperature 16 19 Specifications 19 2...

Page 3: ...oduces audible and visual alarms a beeping sound and a flashing red light adjacent to the tip Even unloaded AC circuits generate electromagnetic fields Although these fields are extremely weak their c...

Page 4: ...hts relays inverters solenoids and horns 12VAC is also commonly used to power hardwired commercial and residential building doorbells buzzers and thermostats Separately the VR40 s ability to detect 48...

Page 5: ...guesswork out of identifying the hot wire of a bundle Four additional features increase the versatility and utility of the VR40 Because its tip can fit in the slots of 110VAC receptacles as it checks...

Page 6: ...e detection of voltage on 12VAC to 480VAC branch circuits and makes individual live wires in bundles easier to isolate Safe for CAT III 600V use Also checks 110VAC outlets for reversed wiring and open...

Page 7: ...way to check for live batteries is to briskly rub the tip of the unit through your hair static electricity has more than enough voltage to activate the beeper and LED The VR40 is designed to indicate...

Page 8: ...n 600V Do not use the VR40 to test for the presence of DC voltage Do not use the unit to test for the presence of AC voltage on a shielded conductor behind a wall or conduit or under soil Keep your fi...

Page 9: ...directly Your eyes natural aversion reflex will prevent you from looking at the beam long enough to cause harm As a precaution keep the VR40 out of the hands of children especially if you have pets N...

Page 10: ...e controls indicators and key components of the VR40 Figure 2 shows all possible indicators on the unit s LCD Familiarize yourself with the labels positions and functions of all buttons and components...

Page 11: ...level With sensitivity at lowest level next press of button returns detector to maximum sensitivity The last sensitivity level selected is recalled the next time the VR40 is activated 5 Two function N...

Page 12: ...display indications Data hold on IR temperature readout on Non contact voltage detection on Low battery indication Laser pointer on IR temperature value IR temperature units NCV sensitivity level bar...

Page 13: ...inside the compartment as an orientation guide Slide the battery compartment cover back onto its rails and push it forward until it snaps shut OPERATING INSTRUCTIONS DETECTING AC VOLTAGE Before using...

Page 14: ...you first maximize the VR40 s sensitivity To do so while pressing and holding the NCV button press the IRT button as many times as necessary until four bars show on the NCV sensitivity level bar graph...

Page 15: ...de energized To determine whether an unknown 220VAC outlet is energized first maximize the VR40 s sensitivity by pressing and holding the NCV button and simultaneously pressing the IRT button as many...

Page 16: ...a device powered by 480VAC a generator or ballast for example is energized simply position the tip of the VR40 near it If the beeper sounds and the LED lights the device is hot energized If you do not...

Page 17: ...in diameter by 1 inch for every 4 inches you move away from the target Conversely the diameter of the target area measured decreases by 1 inch for every 4 inches you move closer to the target All IRT...

Page 18: ...a of 1 ft2 the optimum measurement distance for the 4 1 IRT in the VR40 would be 4 ft Note that when you release the IRT button after measuring a surface temperature the reading will be held on the LC...

Page 19: ...press and hold the IRT button as you aim the laser pointer in various directions Note that the IR temperature readout will track the different temperatures of different surfaces in real time and hold...

Page 20: ...elength Class 2 1mW 630 to 650nm Sampling Time 2X second Auto Power Off Trigger 15 seconds of inactivity Operating Temperature 32 to 113 F 0 to 45 C 95 RH Storage Temperature 14 to 122 F 10 to 50 C 95...

Page 21: ...s of the infrared sensor Fig 1 Callout 9 often but never use a solvent Abrupt temperature changes will cause condensation and possible vapor penetration Clean the LCD after the vapor evaporates Blow o...

Page 22: ...to be from an attempted repair by non authorized personnel or misuse alterations normal wear and tear or accidental damage The defective unit must be returned to General Tools Instruments or to a Gene...

Page 23: ...ntact our Customer Service to obtain an RGA Return Goods Authorization number before forwarding the unit via prepaid freight to the attention of our Service Center at this address General Tools Instru...

Page 24: ...12 431 6100 FAX 212 431 6499 TOLL FREE 800 697 8665 e mail sales generaltools com www generaltools com VR40 User s Manual Specifications subject to change without notice 2013 GENERAL TOOLS INSTRUMENTS...

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