ALPA MEGArod User manual

Lingua originale: inglese REV. 1 - 11/20
MEGArod
metrology

ALPA_DIGITAL_INDICATOR_MEGArod IP67/IP54
DESCRIPTION 5
7
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4
21
3
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19202122
141312 15
11 16
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918
123.4565
MODEMINMAXØPRESETTOLINPUT
f(x)
mm
IN
1 2 x
H
OK

1. Mode button
2. Set button
3. «Favourite» button
4. Clamping shaft
5. Lifting cap
6. Contact point Ø2 / M2.5
7. Slot for Proximity cable
8. Slot for battery or Power Cable
9. Measurement units (mm / INCH)
10. +/- Sign
11. Low batteryButton
12. Mode menu display
13. MIN/MAX/DELTA mode
14. Preset mode
15. Tolerance mode
16. 0.00005’’ display
17. Hold measured value
18. Keypad lock
19. Send data
20. Multiplication factor
21. Tolerance indicators
22. Active reference
DESCRIPTION
EN

ALPA_DIGITAL_INDICATOR_MEGArod IP67/IP54
TECH DATA
Measuring range 12.5 mm 25 mm 50 mm 100 mm 150 mm
Max error (0.01 mm scale) 10 µ 10 µ 20 µ 20 µ 20 µ (±1 digit)
Max error (0.001 mm scale) 3 µ 4 µ 5 µ 6 µ 10 µ
Repeatability 2 µ
Weight 90 g 94 g 175 g 220g 280g
Measurement force (standard) 0.65-0.9 N 0.65 -1.15 N 1.25-2.7N 1.6-3.5N 2.2-5.7N
Max. speed of travel 1.7 m/s
No. of measurements/sec 10 mes/s MIN MAX mode 20 mes/s
Measurement unit mm/inch
Maximum Preset (0.01 mm scale) ±9999.99 mm / ±399.9995 IN

EN
TECH DATA
Maximum Preset (0.001 mm scale) ±999.999 mm / ±39.99995 IN
Measurement system Sylvac inductive system (patented)
Power 1 x 3V lithium battery, type CR2032, 220mAh
Average consumption 73μA
Average battery life 8’000 hours
Data output RS232 compatible
Working temperature (storage) +5 to +40°C (-10 to +60°C)
Electromagnetic compatibility as per EN 61326-1
IP rating (in accordance with IEC60529) IP54 / IP67
Fixing and space envelope Ø8 h6, interchangeable M2.5 probe (as per DIN 878)

ALPA_DIGITAL_INDICATOR_MEGArod IP67/IP54
OPERATING FEATURES OF THE INSTRUMENT
Personalising the functions - It is possible to activate or de-activate certain functions of the instrument via RS232
RS232 commands - Direct RS232 to 4800 Baud connection, 7 bits, even parity, 2 stop bits
The instrument has two operating modes: basic functions (direct access) and advanced
functions. In addition to the conguration functions, 2 working reference functions can
be accessed, in MIN, MAX and DELTA (TIR) mode, plus Tolerance display or input of a
multiplication factor other than 1:1
The «favourite» key gives direct access to the function used most often
Sets a Preset value, veries a selection, and controls switching off the instrument.
By default, SIS mode enables automatic switch-off with no loss of origin
MODE
SET
Press a button. When used for the rst time, the instrument requests selection of the measurement unit
required (MM or Inch). Choose..... then measure.
START

EN
MODE
SET
MODE
SET
MODE
MODE
mm
123,456
mm
Unit
mm
Unit
IN
inch
mm
refi
mm
ref2
mm
PRESET INPUT
-000,000
mm
ref
mm
pre
Units selection (mm or Inch)
Note: It is possible to assign a different preset value to each of the 2 References. Similarly, different tolerance limits can be assigned to References 1 and 2.
Choice of measurement direction (REF1 or REF2)
Inputting a Preset value
Each short press on MODE gives direct access to the basic functions:
BASIC FUNCTIONS
1
1
1
1
1
2
MODE
SET
next digit 0... 9 save PRESET

ALPA_DIGITAL_INDICATOR_MEGArod IP67/IP54
MODE
SET
MODE
SET
SET
SET
MODE
MODE
mm
123,456
mm
mode
mm
min
mm
max
mm
delta
mm
nor
mm
on
mm
÷ 0,001
mm
off
mm
0,001
mm
-0,001
mm
0,01
mm
tol
mm
dir
mm
res
MIN, MAX measurement, DELTA (TIR)
Tolerance display (inputting tolerance limits)
Choice of resolution (only on μm instrument)
Choice of measurement direction (positive or negative sense)
Prolonged pressure on MODE gives access to the advanced functions. Then, each short press on
MODE accesses the required function:
ADVANCED FUNCTIONS
MIN
TOL TOL
MAX MIN MAX
1
1 1 1

EN
MIN, MAX measurement, DELTA (TIR)
MODE
MODE
MODE
MODE
mm
mult
mm
001,000
mm
man
mm
auto
mm
off
mm
INPUT
÷
on
mm
off
mm
loc
Inputting a multiplication factor other than 1.000
Automatic switch-off mode
MAN= de-activated, AUTO= active (after 20 min.)
Keypad lock
Only the favourite key remains active
(to unlock the keypad, press for 5 sec)
SET
SET
SET
x
MODE
SET
next digit 0... 9 save PRESET
SET
Note: It is also possible to display the tolerance limits when the instrument is operating in MIN, MAX or DELTA (TIR) mode.
If no tolerance limit has been dened by the user, the instrument will display the tolerance limit indicators , but will not turn on the indicator lights (red - green - yellow)
OK

ALPA_DIGITAL_INDICATOR_MEGArod IP67/IP54
MODE
MODE
MODE
MODE
MODE
mm
tol
mm
on
mm
-000,000
mm
off
mm
TOL
TOL INPUT
TOL INPUT
TOL
-000,000
Input the lower tolerance limit
Input the upper tolerance limit
To input or modify the tolerance limits, TOL → ON mode should be selected, followed by a short
press on :
INPUTTING TOLERANCE LIMITS
SET
MODE
MODE
SET
next digit 0... 9 save
Note: For measuring internal dimensions, the red and yellow indicators can be switched over by reversing the order in which the tolerance limits are input (lower limit > upper
limit). It is possible to input different tolerances on REF1 and REF2.
1 1
1
1
1

EN
o data 4 unit 8 tol
1 hold 5 ref 9 res
2 clr 6 pre 10 dir
3 set 7 MODE 11 mult
Data transmission
(default) mm – IN Tol ON–Tol OFF
Note: a function can also be assigned via RS232 using the command <FCT + Function No.> example: Change of Reference = <FCT5>
Validation of selection: By a prolonged press on or a short press on SET or
Hold display REF1 – REF2 0.01 – 0.001
Re-initialise
Min- Max-Delta Recall Preset Measurement sense, positive - negative
Zero reset Nor–Min–Max-Delta 1:1 – N:1 factor
The «favourite» key gives direct access to a predened function, and can be congured according to
the needs of the user. In order to assign a function to the «favourite» key, give a prolonged press on
function:
FAVOURITE KEY
MODESET

ALPA_DIGITAL_INDICATOR_MEGArod IP67/IP54
The dial gauge goes automatically into stand-by if not used for 20 minutes, unless Auto OFF mode
has been turned off.
Stand-by mode can be forced by a prolonged press (> 2 sec) on :
Prolonged press (>4 sec) on :
In stand-by mode, the value of the origin is retained by the sensor (SIS mode), and the instrument
automatically restarts with any movement of the measurement probe.
The instrument can be switched off completely for a long period of non-use, but this will
necessitate a zero reset on restart (the origin will be lost):
SWITCHING OFF
mm
123,456
> 2s
1SET
MODE
mm
123,456 off
> 4s > 4s
1SET
MODE

The initial instrument settings can be restored at any time by a prolonged press (>4 sec)
simultaneously on and until the message CLEAr is displayed. Nevertheless the retains its
conguration settings (units and resolution) as well as the last active reference.
EN
SET MODE
RE-INITIALISING THE INSTRUMENT
PERSONALISING THE INSTRUMENT
Access to the functions of your instrument can be personalised using the free S_Dial WORK Demo or
Sylconnect software, which is available on the www.sylvac.ch website (requires you to connect your
instrument via a Proximity or Power RS / USB cable).
This program enables you to:
- De-activate or active the required functions
- Modify access to the advanced functions (direct access)

ALPA_DIGITAL_INDICATOR_MEGArod IP67/IP54
The instrument can be connected to a peripheral via a Proximity (RS or USB), or Power-RS
(Power-USB) cable.
Measured values can be transmitted and the instrument driven using predened retro-commands.
Note: in Tolerance mode, the tolerance limit lights remain lit only for a few seconds while the
measurement stabilises. On the other hand, they will remain lit continuously if the instrument is
connected to, and powered by, the Power RS (USB) cable.
CONNECTING THE INSTRUMENT

EN
LIST OF THE MAIN RETRO-COMMANDS
Selection and conguration
CHA+ / CHA- Change measurement direction
FCT0 ...9...A...F Assign «favourite» function
MM / IN Change measurement unit
KEY0 / KEY1 Lock / unlock keypad
MUL [+/-]xxx.xxxx Modify multiplication factor
PRE [+/-]xxx.xxx Modify preset value
REF1 / REF2 Change active reference
STO1 / STO0 Activate / de-activate HOLD
TOL1 / TOL0 Activate / de-activate tolerances
LCAL dd.mm.yy Modify last calibration date
NCAL dd.mm.yy Modify next calibration date
TOL +/-xxx.xxx +/-yyy.yyy Inputting current tolerance limits
MIN /MAX /DEL /NOR Selecting MIN, MAX, Delta, Normal mode
CLE Re-initialisation of MIN, MAX or Delta

ALPA_DIGITAL_INDICATOR_MEGArod IP67/IP54
LIST OF THE MAIN RETRO-COMMANDS
UNI1 / UNI0 Activate / de-activate change of units
OUT1 /OUT0 Activate / de-activate contin. data transmission
PRE ON / PRE OFF Activate / de-activate Preset function
PRE Recall Preset
SET Zero reset
RES2 / RES3 Change of resolution
Interrogation
CHA? Measurement sense?
FCT? «favourite» function active?
UNI? Measurement unit active?
KEY? Keypad locked?
MUL? Multiplication factor?
PRE? Preset value?
REF? Reference active?

EN
LIST OF THE MAIN RETRO-COMMANDS
STO? Status of HOLD function?
TOL? Current tolerance limit values?
LCAL? Date of last calibration?
NCAL? Date of next calibration?
? Current value (mode Tol, value followed by <=>)?
MOD? Active mode (MIN, MAX, Delta or Normal)?
SET? Main instrument parameters?
ID? Instrument identication code?
Maintenance functions
BAT? Battery status (BAT1 = OK, BAT0 = low battery)
OFF Switch-off (wake up using a button or RS)
RST Re-initialisation of the instrument
SBY Put instrument in stand-by (SIS)
VER? Version No. and date of rmware

ALPA_DIGITAL_INDICATOR_MEGArod IP67/IP54
Lithium 3V, type CR2032
BATTERY CHANGE MAINTENANCE
Dry carefully all metallic parts of the instrument, clean it using
alcohol or petrol and then lubricate it with ne oil after water jets
or moisture effects to guarantee a good mechanical working and
to avoid rust.
Clean the housing and the display window using a soft chiffon
and neutral detergent. Do not use organic products (diluents,
petrol, acetone, etc…)
Don’t keep the instrument in the sun, heat or humidity.

EN
We certify that this instrument has been manufactured in accordance with our Quality Standard and
tested with reference to masters of certied traceability by the National Ofce of Metrology.
CERTIFICATE OF CONFORMITY
Because we make our instruments in batches, you may nd that the date on your calibration
certicate is not current. Please be assured that your instruments are certied at point of production
and then held in stock in our warehouse in accordance with our Quality Management System ISO
9001. Re-calibration cycle should start from date of receipt.
CALIBRATION CERTIFICATE

ALPA_DIGITAL_INDICATOR_MEGArod IP67/IP54
5
7
8
4
21
3
6
19202122
141312 15
11 16
10 17
918
123.4565
MODEMINMAXØPRESETTOLINPUT
f(x)
mm
IN
1 2 x
H
OK
DESCRIZIONE