User manual

151
TESTING
Tel: [phone] Fax: [phone] Partners in Precision
Premium Micro-Vickers Hardness Tester
NEXUS 420AAT/DAT Series
Motorised turret with analogue / digital measurement
microscope and easy-to-use integrated hardness calculator.
Features
• Two models available with 10gf - 1 Kgf or 10gf - 2Kgf depending
on model
• Fully automatic 4 position turret for Micro Vickers /Knoop
measurements
- Choice of turret configuration
- 3 objectives and 1 indenter
- 2 objectives and 2 indenter (Vickers & Knoop)
- Dual indenter (Vickers/Knoop) turret optional
• High resolution eyepiece
• Built in high speed printer
Standard Delivery
• Main unit
• Manual X-Y stage
• Objectives according to model
(10x & 40x or 10x, 20x & 40x)
• Analogue eyepiece 15x (420AAT)
• Digital eyepiece 15x (420DAT)
• Vickers test block (+/- 725 HV 1)
• Vickers test block (+/- 450 HV 0.2)
• Built-in thermal printer
• RS-232 data output
• 4 adjustable feet
• Set of work piece fixtures - vice, chuck & clamp
• Spare halogen bulb
• Fuse
• Installation & user’s manual
• Quality certificate
Optional Accessories
• Choice of objective configuration
• IMP Video measuring systems
• Dual indenter turret, Vickers & Knoop
• Motorised X-Y stage
• Motorised X-Y-Z stage (auto focus)
• Metal support table with storage cabinet
• Indenter & test blocks
• Certified indenter & test blocks
Optional System
• IMP system for semi and automatic traverses, pattern
testing through PC support and motorised XY stage
TECHNICAL SPECIFICATION
Test force selection Manual
Test procedure Automatic, loading/dwell/unloading
Hardness value 5 digits
Turret 4 positions over 360º, fully automatic, memorised start position,
option for 2 indenters and 2 objectives or 1 indenter and 3 objectives
Test force accuracy < +/-1% for force from 100gr to 2kg, < +/-1.5%
for force below 100gr
User display Length of diagonals, hardness value, converted value,
test force, online statistics
Display resolution 0.1 HV, HK
Standardisation EN, ISO 6507, ASTM E-384, EN ISO 4545
Statistics Total test, max, min, average, range, standard deviation,
all in real time after each test
Control panel Start test, stop test, light intensity, dwell time, print, clear
Firmware English
Memory Memory for 20 test results, with CCD-VIEW software unlimited results
Data output RS-232 Bi-Directional
Dwell time setting Default 5 seconds, user defined 1 to 60 seconds (5 sec. increments)
Printer Built in, silent high speed thermal printer
Eyepiece microscope Bright dual line filar eyepiece with 15x magnification, 0.1µm reading
Light source Halogen 12V, 30W, green filter, dimmable
Optical path 2 way, eyepiece / camera
Vertical capacity 90mm (maximum specimen height)
Horizontal capacity 120mm (from centre line)
Stage dimensions 100x100mm, travel 25x25mm, and reading 0.01mm
Operating temperature 5ºC to 40ºC (+/-20º for force 25gr and 50gr)
Humidity 10% to 90% non condensing
Dimensions 420 x 250 x 490mm
Weight 37.5Kg
Power 240V/110V, 50/60Hz, single phase
Digital Eyepiece
Analogue Eyepiece
NEXUS 420AAT/DAT SERIES TESTER
Code No Description
W-422AAT Analogue, 2 objectives, 0.01 - 0.025 - 0.05 - 0.1 - 0.2 - 0.3 - 0.5 - 1 - 2Kgf (HV)
W-423AAT Analogue, 3 objectives, 0.01 - 0.025 - 0.05 - 0.1 - 0.2 - 0.3 - 0.5 - 1 - 2Kgf (HV)
W-422DAT Digital, 2 objectives, 0.01 - 0.025 - 0.05 - 0.1 - 0.2 - 0.3 - 0.5 - 1 - 2Kgf (HV)
W-423DAT Digital, 3 objectives, 0.01 - 0.025 - 0.05 - 0.1 - 0.2 - 0.3 - 0.5 - 1 - 2Kgf (HV)
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