Pace Technologies OMEGA SRT-15/150 User manual

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
Equipment
Type:
Dual Distal Superficial /
Rockwell Hardness Tester
Model: OMEGA SRT-15/150
Electrical
Requirements:
110 Volts (single-phase)
Frequency: 50/60 Hz
Manual
Revision Date:
September 2017 AG

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
Contents
PAGE
Warranty ii
1.0 Product Description 1
2.0 Unpacking, Shipping and Installation 4
3.0 Safety Guidelines 18
4.0 Operation 19
5.0 Maintenance 23
6.0 Trouble Shooting 24
7.0 Spare Parts 25
8.0 Hardness Testing Basics 30
9.0 Appendix RS232 Connector 32
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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
WARRANTY
Terms and Conditions applying to all PACE Technologies Products
1. LIMITED WARRANTY AND DISCLAIMER:
PACE Technologies microscopes and hardness testers are warranted for one year from the purchase
date to be free from defects in material and workmanship under correct use, normal operating conditions,
and proper application. PACE Technologies obligation under this warranty shall be limited to the repair or
exchange, at PACE Technologies option, of any PACE Technologies Product or part which proves to be
defective as provided herein. PACE Technologies reserves the right to either inspect the product at
Buyer’s location or require it to be returned to the factory for inspection. Buyer is responsible for freight to
and from factory on all warranty claims. The above warranty does not extend to goods damaged or
subjected to accident, abuse or misuse after release from PACE Technologies warehouse, nor goods
altered or repaired by anyone other than specifically authorized PACE Technologies representatives.
PACE Technologies shall not in any way be responsible for the consequences of any alteration,
modification or misuse unless previously approved in writing by an officer of PACE Technologies. Note:
Corrosion is considered a maintenance issue and not a warranty issue.
PACE TECHNOLOGIES MAKES NO EXPRESS WARRANTIES OTHER THAN THOSE WHICH ARE
SPECIFICALLY DESCRIBED HEREIN. Any description of the goods sold hereunder, including any
reference to Buyer’s specifications and any description in catalogs, circulars and other written material
published by PACE Technologies, is the sole purpose of identifying such goods and shall not create an
express warranty that the goods shall conform to such description.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR
IMPLIED. THERE ARE NO IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR
PARTICULAR PURPOSE. THIS WARRANTY STATES PACE TECHNOLOGIES ENTIRE AND
EXCLUSIVE LIABILITY AND BUYER’S EXCLUSIVE REMEDY FOR ANY CLAIM FOR DAMAGES IN
CONNECTIONS WITH PACE TECHNOLOGIES PRODUCTS. PACE TECHNOLOGIES WILL IN NO
EVENT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES WHATSOEVER, NOR FOR
ANY SUM IN EXCESS OF THE PURCHASE PRICE.
2. LIABILITY CAP:
PACE Technologies maximum aggregate liability for loss and damage arising under, resulting from or in
connection with the supply or use of the Equipment and Consumables provided under this purchase, or
from the performance or breach of any obligation (s) imposed hereunder, whether such liability arises
from any one or more claims or actions for breach of contract, tort, (including negligence), delayed
completion, warranty, indemnity, strict liability or otherwise, unless otherwise limited by the terms hereof,
shall be limited to one hundred percent (100%) of the purchase price.
3. DELIVERY:
Customer assumes and shall bear the risk of all loss or damage to the Products from every cause whatsoever,
whether or not insured, and title to such Products shall pass to Customer upon PACE Technologies delivery of
the Products to the common carrier of Pace Technologies choice, or the carrier specified in writing by
Customer, for shipment to Customer. Any claims for breakage, loss, delay, or damage shall be made to the
carrier by the Customer and Pace Technologies will render customer reasonable assistance in prosecuting
such claims.
4. ACCEPTANCE:
Customer shall inspect the Products promptly upon receipt of delivery. Unless customer objects in writing
within thirty (30) business days thereafter, customer shall be deemed to have accepted the Products. All
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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
claims for damages, errors, or shortage in Products delivered shall be made by Customer in writing within
such five (5) business day period. Failure to make any claim timely shall constitute acceptance of the
Products.
5. PAYMENT:
Customer agrees to provide timely payment for the Products in accordance with the terms of payment set
forth on the reverse side hereof or in any proposal submitted herewith. If any payment is not paid on or
before its due date, Customer shall pay interest on such late payment from the due date until paid at the
lesser of 12% per annum or the maximum rate allowed by law.
6. DEFAULT:
If Buyer is in default (including, but not limited to, the failure by Buyer to pay all amounts due and payable
to Seller) under the work or purchase order or any other agreement between Buyer and Seller, Buyer ’s
rights under the warranty shall be suspended during any period of such default and the original warranty
period will not be extended beyond its original expiration date despite such suspension of warranty rights.
7. MISCELLANEOUS PROVISIONS:
This agreement has been made in and shall be governed by the laws of the State of Arizona. All disputes
arising under or relating to the purchase of the equipment shall be brought and resolved solely and exclusively
in the State of Arizona, Pima County . These terms and conditions and the description of the Products on the
reverse side hereof or in any proposal submitted herewith constitute the entire agreement and understanding
of the parties with respect to this sale and supersede all prior and contemporaneous agreements or
understandings, inducements or representations, expressed or implied, written or oral, between the parties
with respect hereto. Any term or provision of this Agreement may be amended, and any observance of any
term of this Agreement may be waived, only by a writing signed by the party to be bounds. The waiver by a
party of any breach shall not be deemed to constitute a waiver of any other breach. Should suit be brought on
this Agreement, the prevailing party shall be entitled to recover its reasonable attorneys’ fees and other costs
of suit including costs and attorneys’ fees incurred on appeal or in collection of any judgment., errors, or
shortage in Products delivered shall be made by Customer in writing within such five (5) business day period.
Failure to make any claim timely shall constitute acceptance of the Products.
8. RESTOCKING FEE:
All Returns are subject to a restocking charge equal to 15% (fifteen percent) of the Invoice, unless the Goods
are proved to be non-conformed by PACE Technologies.
iii

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
1. LED screen
2. Operating keys
3. Indenter fastening screw
4. Indenter
5. Anvil
6. Up and Down lead screw
7. Screw adjustment wheel
8. Leveling feet
9. Upper cover
10. Back cover
11. Rockwell/ Superficial
selection knob
12. Weight adjustment knob
13. Power switch
14. Power cord
15. RS232 connector
16. Fuse
17. Printer
1.0 Product Description
1.1 General Description
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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
2
Indenter
Printer
Primary load and
height adjustment
The OMEGA SRT-15/150 dual Superficial / Rockwell hardness testing for evaluating
metallographic specimen hardness.
The OMEGA SRT-15/150 dual Superficial / Rockwell hardness tester with a load range of 15 kg
45 kg for Superficial Rockwell testing and 60 kg to 150 kg for Rockwell testing.
Control
panel
Anvil
LCD Display
Superficial /
Rockwell knob
Loading
Control
knob

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
1.2 Technical Specifications
Electrical specifications: 110 or 220V single-phase
(50/60 Hz)
Test forces: Superficial Rockwell
15 kg
30 kg
45 kg
Rockwell
60 kg
100 kg
150 kg
Dwell time of test force: 2-60 seconds
Max. height of specimen: 175 mm (7-inches)
Distance from indentation:
center to frame
165 mm (6.5-inches)
Weight: Approx. 175 lbs (80 kg)
Dimensions (WxHxD): Approx. 21” x 8.5” x 30.5”
(525 mm x 210 mm x 770 mm)
Working temperature: 70° - 85°F (23 - 28°C)
Indenters (included) Diamond Rockwelll
1.5875 mm ball
3

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
2.0 Unpacking, Shipping and Installation
2.1 Unpacking Unit is delivered in a box. Unpack and check for completeness of
parts.
Measures WxHxD: 26”x15”x36” (660x380x915 mm)
Weight: Approximately 220 lbs (100 kg)
2.2 Shipping When moving box, lift from bottom.
! Caution: Heavy equipment. Take care to avoid bodily injury.
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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
5
!
Install unit carefully! Improper installation voids warranty.
The OMEGA SRT-15/150 should be placed on a flat stable vibration free surface. If tall
or high samples are to be tested so that the up / down lead screw is lowered significantly,
a hole will need to be made in the table (see drawing for specifications - mm)
2.3 Installation
Attach four
leveling feet and
use bubble level on
anvil to level unit
(see section 2.3.5)
2.3.1 Install leveling feet

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
6
Remove rubber bands
Open top and back
covers
-Remove ties
2.3.2 Remove shipping securing tie downs
Remove felt pad

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
7
Hang weight
stack holder
onto loading
beam
2.3.3 Installing weight stack
Load weights
onto holder so
that the pegs
on the weight
are aligned
with the forks
on the holder
Test the load stack to verify that the
weights are being lifted and that they
hang freely depending on the load set
on the control knob

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
18. Hook
19. Hanging rod
20. Weight 1
21. Weight 2
22. Weight 3
23. Fork lifter
24. Weight 4
25. Weight 5
26. Tray
27. Weight 6
28. Retaining nut
Scale Test Force (N) Graduated value on
Load-Change hand
wheel
Weight
15N 15 kg Hanging rod + Weight 6
30N 30 kg Hanging rod + Weight 6 + 1
45N 45 kg Hanging rod + Weight 6 + 1 + 2
HRA 588.4 (60 kg) 588.4
(60)
Hanging rod + Weight 6 + 1 + 2
+ 3
HRB 980-7 (100 kg) 980-7
(100)
Hanging rod + Weight 6 + 1 + 2
+ 3 + 4
HRC 1471 (150 kg) 1471
(150)
Hanging rod + Weight 6 + 1 + 2
+ 3 + 4 + 5
Test force for respective weights
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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
Place bubble level on
stage and adjust feet
height to level the unit
2.3.4 Installing Anvil Stage
2.3.5 Leveling unit
Insert anvil into up/down
screw feed
Raise cover and
tighten thumb
screws
9

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
2.3.6 Inserting Indenter
Align flat end of indenter
shank with the holding
screw
After loading indenter - run a sample indent to
properly set the indenter
10

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
23. Connecting rod
24. Adjustment screw
25. Fine tuning adjustment
knob
2.3.7a Calibration (Rockwell)
To calibrate to test blocks - hold
screw in place at (24)and loosen
nut, adjust screw (25)
For values reading low - adjust
screw clockwise
For values reading high - adjust
screw counter-clockwise
11
Adjustment knob

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
If the superficial values are not correlating to test blocks after calibrating the Rockwell use the
following calibration procedure.
1. Verify that the Rockwell hardness is calibrated to certified test blocks
2. Superficial Rockwell is calibrated through the control panel
a. Press Menu Key (REV1) — Print Key (PRT) — Enter the revised value interface
15N 30N 45N
15T 30T 45T
Choose the scale to adjust and press the up/down key to adjust the value
Low 0-50 Low hardness revision
High 50-100 high hardness revision
2.3.7b Calibration (Superficial scale)
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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
2.3.8 Key Pad Functions
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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
2.3.8.1 <REVI> Key’s Function
Press <REVI> Key to display the LCD screen
to the right. The cursor will flash. Press the
UP or DOWN key to select the item in the
menu and then press <OK> to enter.
F
2.3.8.1a CONVERT:
Converts hardness values to selected scale.
Press <REVI> key to enter system set-
ting menu. Select <CONVERT>
from the menu and press <OK> to ob-
tain selection table. Move cursor to
the desired scale and press <OK>.
Press <OK> key again to return to
main screen.
Typical scales are listed as:
HARD - Ferrous metals;
SOFT - Non-ferrous metals.
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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
2.3.8.1b DWELL: (Dwell time setting)
Set the dwell time and press <OK> to save and to return to the main page.
2.3.8.1c TIME: (Date / clock setting)
Set clock setter for year, month, date, hour, minute and press <OK> to save
and to return to the main page.
2.3.8.1d SCALES:
(Selection of Rockwell or Superficial
Rockwell scales)
Select the Rockwell hardness
scales (see top right table), or
select the Superficial Rockwell
hardness scales (see lower right
table).
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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: http://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
OMEGA SRT-15/150 Dual Superficial /
Rockwell Hardness Tester
2.3.8.1e LIMITS: (Limit values setting)
Upper and lower limits can be set in this mode.
If a hardness value is within the upper and lower
limits a “GO” (qualified) value will be displayed
and printed. For values outside of the set rang a
“NG” (un1ualified) value will be higher than the
lower limit.
To turn “ON” use cursor to set upper and lower
limit. Press <OK> to set value.
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