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Introduction
Thank you for choosing the Spectra Precision
®
Laser Receiver HR150
from the Trimble
®
family of precision instruments. The HR150 is a
battery-operated laser receiver that detects a rotating laser beam and
indicates its position relative to the beam using LEDs.
Before using the receiver, be sure to read this user guide carefully.
Included in it is information about setting up, using, and maintaining
the receiver. Also included in this manual are CAUTIONS and Notes.
Each of these words represents a level
of danger or concern. A CAUTION indicates a hazard or unsafe
practice that could result in minor injury or property damage.
A Note indicates important information unrelated to safety.
Your comments and suggestions are welcome; please contact us at:
Trimble Construction Division
5475 Kellenburger Road
Dayton, Ohio 45424-1099 U.S.A.
Phone: (937) 245-5600
(800) 538-7800
FAX: (937) 233-9004
Internet: www.trimble.com
How to Use the Receiver
Installing/Removing the Batteries
07. Clamp-Tab Recess—is the
area that the general-purpose
clamp’s release tab fits into.
08. Label—shows the serial
number and bar code.
09. Magnet—holds the receiver
on a wall molding, cross-T,
runner, etc.
10. Battery Housing—holds two
AA alkaline or Ni-Cd
batteries.
11. Battery Door—holds the
batteries securely in place.
12. Neck Cord Holder—allows a
neck cord to be attached to
the receiver.
Receiver
Features and Functions
1. Power/Audio Button—is a
multi-functional button that
turns on/off the receiver and
audio function.
2. Marking Notches (both
sides)—align with the
on-grade portion of the
photocell and are used to
mark elevation readings.
The marking notches are
50mm (2 inches) from the
top of the receiver.
1. Release the battery door using your fingers, a coin, or a
screwdriver. Open the door.
2. Install/Remove the 2 AA batteries noting the positive (+) and
negative (–) diagram on the bottom of the battery housing.
3. Close the battery door and latch it shut.
Learning the Receiver Functions
Turning On/Off the Receiver
1. Press the power/audio button to turn on the receiver.
Note: When the receiver is initially turned on, all LEDs and the
audio signal turn on for one second (diagnostic mode).
Note: The on-grade LED flashes once every two seconds to show
that the receiver is on.
2. Press and hold the power/audio button for two seconds to turn off
the receiver.
Note: When the receiver is being turned off, all the LEDs and the
audio signal quickly turn on for one second.
Selecting the Audio Function
The receiver always starts up with the audio mode active.
1. Press the power/audio button repeatedly to turn on/off the
audio function.
Note: If the audio function is on, the receiver beeps quickly when
the receiver is above the laser beam, slowly when below it, and
continuously when centered in the laser beam or on grade.
HR150 Receiver
User Guide
www.trimble.com
•
Using the Receiver with a Laser
1. Press the power/audio button to turn on the receiver.
2. Position the receiver so that its photocell faces the laser.
3. Move the receiver up/down until the LEDs show an on-grade
reading.
Note: The top/bottom red LEDs flash when the receiver is above
or below the laser beam. The green LED flashes when the receiver
is on grade.
LED/Audio Information
LED/Audio Indication Function Audio Output
Green LED: flashes
once every two seconds
Receiver is on
N/A
Top red LED: flashing High Fast beeping tone
Green LED: flashing On-grade Continuous tone
Bottom red LED:
flashing
Low Slow beeping tone
Both red LEDs:
flashing in sequence
Low battery
N/A
Speaker beep Audio on 3 beeps
Beam location Single beep
3. LEDs (front and back)—
show the position of the
receiver relative to the laser beam (high, on-grade, or low), and
indicate power and low-battery status.
4. Level Bubble—is used to make sure that the receiver is level.
5. Photocell—detects the laser beam when it strikes the receiver.
6. Audio Port—is the opening the sound comes out of.
2
1
6
5
3
4
2
11
12
8
9
10
7
High
On Grade
Low
Power/Audio Button
Audio Port
Low Battery