Trimble HL750 Users Manual

Battery Status

Full -

Batteries

OK

Half -

Initial

Warning

Outline -

Approx.
30 Minutes
Remaining

Move clamp position

Offset on-grade clamp position - clamp
position is se nsed automatically and
displayed. Offset clamp position moves
the on-grade l ocation to allow more g rade
information to be displayed above gra de.
This is useful in applications where going
below grade is not required, i.e. dri ving
stakes down to grade.

Rod Clamp

1

2

3

Captive Rod Clamp Screw - attaches to the back of detector.1.

Alignment Points (2) - help secure and align rod clamp.2.

Level Vial - can be viewed from above or below to verify that the 3.
rod is plumb.

Clamping Screw Knob - secures clamp to rods by moving the 4.
traveling jaw. Clockwise tightens; Counterclockwise loosens.

Reference Bar - top of bar is aligned with on-grade. 5.

Traveling Jaw - moving jaw grips tightly to rods.6.

Reversible Face - slanted face for round and oval rods; flat face 7.
for rectangular and square rods.

Flashing -

Change

Batteries

7

6

5

4

Specications

Working Radius: 1 m - 460 m (3 ft - 1500 ft)
(Laser dependent):
Laser Detection Height: 127.0 mm (5“)
Numeric Readout Height: 102.0 mm (4“)
Internal Radio: Full 2- way communication, oper ation
and security lock with paired device
Radio Working Radius: 40 - 100 m (130 - 330 ft), depending on
orientation, conditions and paired device
Accuracy (Dead band):
Ultra Fine 0.5 mm 0.02 in 1/32 in
Super Fine 1.0 mm 0.05 in 1/16 in
Fine 2.0 mm 0.10 in 1/8 in
Medium 5.0 mm 0.20 in 1/4 in
Coarse 10.0 mm 0.50 in 1/2 in
Calibration 0.1 mm 0.01 in 1/64 in
Reception Angle: ± 45° minimum
Detectable Spectrum: 610 nm ... 780 nm
Beeper Volumes: Loud = 110 dBA
Medium = 95 dBA
Low = 65 dBA
LED Grade Indi cators: Front, Green o n-grade,
Red Hi, Blue Low
Power Supply: 2 x 1.5 Volt “AA” batteries
Battery Life: 60+ hours
Automatic Shut Off: Selectable, 30 min, 24 h, Off
Environmental: Waterproof, Dustproof to IP67
Weight without clamp: 371 g (13.1 oz.)
Dimensions without
clamp: 168.0 x 76.0 x 36.0 mm
(6.6” x 3.0” x 1.4”)
Operating Temperature: -20°C...+60°C (-4°F... +140°F)
Storage Temperature: -40°C...+70°C (-40°F...+158°F)

*Specifications subject to change without notice.

Warranty

Trimble warrants the HL750 to be free of defects in material and workmanship for a period of
three years. Trimble or its authorized service center will repair or replace, at its option, any
defective part, or the entire product, for which notice has been given during the warranty period.
If required, travel and per diem expenses to and from the place where repairs are made will be
charged to the customer at the prevailing rates. Customers should send the product to Trimble
Navigation Ltd. or the nearest authorized service center for warranty repairs or exchange, freight
prepaid. Any evidence of negligent, abnormal use, accident, or any attempt to repair the product
by other than factory-authorized personnel using Trimble certied or recommended parts, au­tomatically voids the warranty. The foregoing states the entire liability of Trimble regarding the
purchase and use of its equipment. Trimble will not be held responsible for any consequential
loss or damage of any kind. This warranty is in lieu of all other warranties, except as set forth

above, including any implied warranty merchantability of tness for a particular purpose, are

hereby disclaimed. This warranty is in lieu of all other warranties, expressed or implied.

Notice to Our European Union Customers

For product recycling instructions and more information,

please go to: www.trimble.com/environment/summary.html

Recycling in Europe

To recycle Trimble WEEE,

call: [phone], and
ask for the “WEEE associate,” or

Mail a request for recycling instructions to:

Trimble Europe BV c/o Menlo Worldwide Logistics
Meerheide 45 5521 DZ Eersel, NL

Trimble Construction Division
5475 Kellenburger Road
Dayton, Ohio 45424-1099
U.S.A.
[phone] Phone

www.trimble.com

© 2008, Trimble Navigation Limited. All rights reserved.

PN 1277-5370 (04/09)

N324

HL750 Laserometer

User Guide

HL750

www.trimble.com

4

3

2

HL750

1

Front view

1. Keypad - Power, Accuracy, Units & Volume switches.

2. LED Display - Green for on-grade, Red for high, Blue for low

3. Beeper output - Fast, solid & slow audible signal.

4. Bubble Vial - aids in keeping level.

5. Anti-strobe se nsor - Reduces false in dication from
strobe lights.

6. SuperCell Reception Window - 5.0 in / 127.0 mm of height.

7. Front LCD - Displays elevation, settings and status.

8. On-grade Mark - Aligned with laser center on-grade
reading.

Installing the Batteries

5

6

7

8

1. Open the battery door using a coin or similar pry device to release the battery door tab.

2. Insert two AA batteries noting the plus (+) and minus (-) diagrams inside the battery housing.

3. Close the battery door. Push down until it “clicks” into the locked position.

EMC Declaration of Conformity

This receiver has been tested and found to comply with the limits for a
Class B digital device for radio noise for digital apparatus set out in the
Radio Interference Regulations of the Canadian Department of Com­munication, and is pursuant to part 15 of the Federal Communication
Commission (FCC) rules. These limits are designed to provide reason­able protection against harmful interference in a residential installation.
This receiver generates radio frequency. If it’s not used in accordance
with the instructions, it may cause harmful interference to radio or televi­sion reception. Such interference can be determined by turning the re­ceiver off and on. You are encouraged to try eliminating the interference
by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the laser and the receiver.

For more information, consult your dealer or an experience
radio/television technician.
CAUTION: Changes or modications to the receiver that are not ex-
pressly approved by Trimble could void authority to use the equipment.

Declaration of Conformity

Application of Council Directive(s): 89/336/EEC
Manufacturer’s Name: Trimble Navigation Ltd.
European Representative Address: Trimble GmbH Am Prime Parc 11
65479 Raunheim, Germany
Conformance to Directive(s): EC Directive 89/336/EEC using
EN55022 and EN50082-1
Equipment Type/Environment: ITE/residential, commercial
& light industrial
Product Standards: Product meets the limit B and
methods of EN55022
Product meets the levels and
methods of IEC 801-2, 8 kV air,
4 kV contact IEC 801-3, 3 V/m
26 to 1000 MHz 80%, @ 1 kHz

13

12

11

10

9

14

15

16

Rear view

9. Battery Door & Latch for two “AA” batteries.

10. Marking Notch (3.15 in / 80.0 mm from top).

11. Captive Screw Thread, Center on-grade clamp position.

12. Captive Screw Thread, Offset on-grade clamp position.

13. Clamp Guides - Dimples align rod clamp.

14. Serial Number / ID Label.

15. Rear LCD - repeats indications of front LCD.

16. Rubber over mold - Protects the unit from drops

Action Display Remarks

Action Display Remarks

Special Menu Functions

Turn power ON/OFF

Press to turn power ON. Press and hol d
for 2 seconds to turn power OFF.

Select accuracy

Press once to change current setting
(A beep confirms the selected volume.)

Select beeper volume

Press once to display current setting;
push again to scroll through options.

Select units of measure

Press once to display current setting,
additional pushes to scroll through options.

Select brightness of LEDs

+

Press together to cycle the selection.

1

Beeper

Loud

mm - cm - in - frac - ft

2

3

Accuracy in mm:

0.5 1.0 2.0 5.0 10.0

Beeper

Medium

LEDs
Bright

Beeper

LEDs

Dim

Initialization:

1. Test of LCD, LED and beeper

2. CAL: Calibration (3 sec.)

3. Unit is ready for use.

(Do not power up the unit in a laser beam
or strobe. If detected, the unit will display
“E200” and revert to the previous
calibration.)

The selected unit of measure determines
the displayed deadband (accuracy).

The current accuracy is stored in memory
and will be retained when the unit is turned
off or when batteries are replaced.

(No symbol)

Beeper

Low

Off

The current unit of measure is stored in
memory and will be retained when the unit
is turned off or when batteries are replaced.

(No symbol)

LEDs

OFF

The current beeper
volume is stor ed in
memory and will be
retained when the unit is
turned off or when bat­teries are replaced.

The current brightness of LEDs
is stored in memory and will
be retained when the unit is
turned off or when batteries are
replaced.

CAPTURE Function

A) HL750 is in the laser beam and the
power is on:

1 x quick

B) HL750 is out of the laser beam and
power is on:

1.

1 x quick

2. Place the HL750 in the beam. (Example:
Fasten it to a measuring rod, bring the
HL750 into the laser beam. You now have
5 seconds to p lumb the rod and get th e
reading captured.)

NOTE: The CAPTURE function is disabled
when the HL750 is radio linked and operating
with a paired device.

Special Menu Functions

Press switches
together for 2 sec

.

+

How to change Menu functions:

1. Scrolling up or down.

2. Enter Change mode.

3. Change selected items

4. Confirm change.

5. To Exit.

.

or

The current elevation read­ing will be held. A flashing
display will confirm the
reading has been captured

A short intermittent
beep (The beep er

+

will turn on t o Low if
turned off.)

The beeper wil l
chirp rapidly after

+

approximately 5

seconds to confirm
beam capture. A flashing
display will a lso indicate
the reading ha s been

.

captured

(for 2 Sec., then RDIO)

RDIO Radio Functions - MODE - PAIR - TEST
SENS Sensitivity Medium*-High-Low
AVG Averaging algorithm Medium*-High-Low
D.R.O. Numeric display ON*-OFF-.1mm
UNIT Units of measure MM*-CM-IN-FRAC-FT
FRC.R. Fractional Reduction ON*-OFF
ARRW Arrow Display DB*(deadband)-PR (prop.)
O.O.B. Out-of-Beam Display ON*-OFF
GRD.A. Grade Alarm ON-OFF*
A.S.O. Automatic shutoff 0.5h*-24h-OFF
TX.O.L. Transmitter Out-of-Level OFF*-RPS
TX.O.B. Transmitter Low Battery OFF*-RPS
INFO Information about the Laserometer
* Default setting

Out-of-Beam Display
O.O.B. (Out-of-Beam Display):

Sequence to show direction to get back in
the laser beam ( for 25 s)
ON - Out-of-Beam Display ON*
OF - Out-of-Beam Display OFF

.

Press any switch to return to normal
operation.

Press any switch to return to normal
operation.

Automatic Shutoff
A.S.O. (Automatic Shut Off):

0.5 - After 30 Minutes*
OF - Off (Unit is permanently on.)
24 - 24 hour shutoff.

RADIO Function

RDIO (Radio) - Selects the 2-way radio operating conditions.
MODE -

OF – Off, No radio operation
GL – Grade Laser, radio is set to operate with a GL5X 2 grade laser
(see the GL5X2 operator’s manual for using these features)
HL – Handheld Laserometer, the 2-way radio is set to operate with another HL750

PAIR - Configures the radio to work with a specific GL5X2 grade laser or HL750 Laserometer.
Identification code of the paired device is stored in memory.

TEST - Displays the value of communication packets (Service Use Only)

Remote Operation with Two HL750’s

The HL750 can remotely display another HL750’s elevation information up to 100 m (330 ft) away.

1. Pair the Two HL750’s
(NOTE: The Pair operation is only required once)
Turn on both HL750 Laserometers that are to be paired and follow below directions for both units.
Enter the MENU of the HL750’s. The RDIO functions will be shown
Enter the RDIO functions to display the MODE selection
If HL is not displayed, Enter the MODE function and scroll up or down to select HL for each HL750 and ENTER.
Scroll down to PAIR f unction. ENTER to activ ate pairing.

2. Remote Operation

Turn both HL750’s Off.
The first HL750 turned on becomes the laser SENSOR (receiver). The second HL750 turned on becomes the
REMOTE DISPLAY / CONTROL PANEL.
Turn on the SENSOR HL750 first. Mount at the desired elevation so that it can receive the laser beam.
Turn on the REMOTE DISPLAY / CONTROL PANEL HL750 second.
RMT.D – OK will be displayed.
Press ENTER to operate this HL750 as the REMOTE DISPLAY / CONTROL PANEL.

NOTE: If ENTER is not pressed, both HL750’s will revert to standard operation.

The RMT.D unit can remotely adjust the Accuracy and Units of Measure of the SENSOR.

Change special Menu Functions only in the
case of special job requirements!

Sensitivity of reception
SENS (Sensitivity):

Selects reception sensitivity to laser and
other light sources.

MD - Medium*: for most applications.
HI - High: When laser beam is

weak, or at very long distances.
LO - Low: If outside sources are
disturbing elevation readings

The PAIR symbol will rotate briefly until bo th units complete the PAIR ope ration.
PAIR OK indicates function complete.

During REMOTE DISPLAY / CONTROL PANEL operation, RMT.D is displayed. The Unit will remotely
display the el evation readings of the SENSOR, as long as the Antenna sy mbol shows the two are within
radio range of each other: 40 - 100 meters (130 - 330 ft).

Grade Alarm
GRD.A. (Grade Alarm):

When turned ON, disables the audible
signal when on-grade. When moved out
of the on-grade deadband, the beeper
activates as normal:
ON - Alarm on (Solid beeper OFF)
OF - Alarm off (Solid beeper ON)*

.

For more information about special
Menu Function contact the manufac­turer, importer or your local dealer

.