Extech Instruments RT30 User manual

User's Guide
Wireless AC Circuit Identifier
Models RT30 and RT32

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Introduction
Congratulations on your purchase of Extech’s Model RT30 (914Mhz) or RT32
(869MHz) Wireless AC Circuit Identifier. The detector can identify live circuits and
detect changes in light level with the wireless receiver. With careful use, this
detector will provide years of reliable service.
Meter Description
TRANSMITTER DESCRIPTION
1. Wire clamp slot
2. Wire Clamp release latch
3. Light sensor
4. Voltage/Light detect LED
5. Battery compartment
6. Power LED
7. Light setpoint button
8. Power/Mode select switch
9. External Probe Connector
RECEIVER DESCRIPTION
1. Detect LED (Amber)
2. Communication LED (Yellow)
3. Power/Mode
4. Power LED (Green)
5. Battery compartment
6. Pocket clip
7. Audio Buzzer
1 2
3
4
7
5
6
1
2
3
4
5
6
7
8

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Operation
Detecting Live Circuits (VOLTAGE method)
The RT30 can be directly clamped on installed building wiring
and will detect the voltage applied to the wiring.
1. Slide the transmitter power switch to the VOLTAGE
position. The POWER LED will switch on.
2. Slide the Receiver power switch to the ON position. The
POWER LED and the SIGNAL OK LED will switch ON.
3. Place the RomexTM/nm cable (AC wire) directly into the
wire clamp slot or, alternatively, connect the external
voltage detector probe into the external probe socket and
then clamp the probe to any cable, extension cord or
appliance cord.
4. If the cable is “live” (voltage present), the
VOLTAGE/LIGHT amber LED on the
transmitter will switch on and the
DETECT LED on the receiver will switch
on.
5. If desired, switch the receiver power
switch to the audio OFF position to
disable the audible tone.
6. When the voltage is removed (by opening the splice or the circuit breaker,
for example), the Detect LEDs will switch OFF and the detect beeper will
switch OFF.
Note: Use of the External Probe overrides the setting of the Power/Mode
Switch. The Lighting method cannot be used while the External Probe is
attached.

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
Support line [phone]
Technical Support: Extension 200; E-mail: [e-mail]
Repair & Returns: Extension 210; E-mail: [email protected]
Product specifications subject to change without notice
For the latest version of this User Guide, Software updates, and other
up-to-the-minute product information, visit our website: www.extech.com
Extech Instruments Corporation, 285 Bear Hill Road, Waltham, MA 02451
Detecting Live Circuits (LIGHTING method)
In situations where access to circuit wiring is limited,
the RT30 can also detect room lighting changes (ON
to OFF).
1. Slide the transmitter power switch to the LIGHT
position. The POWER LED will switch on.
2. Slide the Receiver power switch to the ON
position. The POWER LED will switch on.
3. Cover the Light Sensor on the transmitter and
press the Light Setpoint button.
4. Expose the Light Sensor to the light source.
The VOLTAGE/LIGHT LED on the transmitter and the DETECT LED on the
receiver will switch on
5. When the lights are turned off the VOLTAGE/LIGHT LED on the transmitter
and the DETECT LED on the receiver will switch off, indicating the light has
been switched off and power has been removed.
Note: Before use, always test the light on/off operation for proper sensitivity and
detection.

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Specifications
Transmitter Unit Receiver Unit
Indicators LED Audio Beeper, LED
Transmission
Frequency RT30 (914MHz) RT32 (869MHz) n/a
Transmission Distance Approx. 328’ (100m) in an unobstructed field
Transmission Power +10dBm n/a
Alarm Status Visual Visual and audible
Power Supply Two (2) ‘AAA’ batteries Two (2) ‘AAA’ batteries
Battery Life 80 hours (approximately)
Operating Temperature 14 to 122°F (-10 to 50°C)
Storage Temperature -14 to 140°F (-30 to 60°C)
Operating Humidity 90% RH from 32-86°F (-10 to 30°C) 75% RH from 86-104°F (30 to 40°C)
45% RH from 104-122°F (40 to 50°C)
Storage Humidity 90% RH max.
Dimensions 4.0x2.4x1.5”
(101x61x38mm) 4.5x1.17x 1.02” (114x30x26mm)
Weight 8.0 oz.(0.23 kg) – three (3) piece total

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Maintenance
Battery Replacement
When the Power LED begins to dim, or the transmitter and receiver stop
communicating, the batteries may need to be replaced. Each unit uses two (2)
‘AAA’ batteries (MN2400 or equivalent). The battery doors can be removed
using a Philips screwdriver to loosen the attaching screw.
Calibration and Repair Services
Extech offers repair and calibration services for the products we sell. Extech
also provides NIST certification for most products. Call the Customer Care
Department for information on calibration services available for this product.
Extech recommends that annual calibrations be performed to verify meter
performance and accuracy.
FCC Part 15 (RT30)
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
Warning: Changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate the
equipment.

Warranty
EXTECH INSTRUMENTS CORPORATION (a FLIR company) warrants this instrument to be free of
defects in parts and workmanship for one year from date of shipment (a six month limited warranty
applies on sensors and cables). If it should become necessary to return the instrument for service
during or beyond the warranty period, contact the Customer Service Department at [phone]
ext. 210 for authorization or visit our website at www.extech.com (click on Contact Extech and go to
Service Department to request an RA number). A Return Authorization (RA) number must be issued
before any product is returned to Extech. The sender is responsible for shipping charges, freight,
insurance and proper packaging to prevent damage in transit. This warranty does not apply to defects
resulting from action of the user such as misuse, improper wiring, operation outside of specification,
improper maintenance or repair, or unauthorized modification. Extech specifically disclaims any
implied warranties or merchantability or fitness for a specific purpose and will not be liable for any
direct, indirect, incidental or consequential damages. Extech's total liability is limited to repair or
replacement of the product. The warranty set forth above is inclusive and no other warranty, whether
written or oral, is expressed or implied.
Copyright ©2008 Extech Instruments Corporation (a FLIR company)
All rights reserved including the right of reproduction in whole or in part in any form.
more infor for Extech RT30
Phone: [phone]
Email: [e-mail]
Web. www.airconcern.co.uk
Air Concern Ltd, Building 173 Curie Avenue Harvell Didcot, Oxfordshire