psm-200 displacement sensor

psm-200 displacement sensor
PSM-200
DISPLACEMENT SENSOR
TECHNICAL MANUAL
© Noptel Oy 25.11.2010
Doc.no: N40296B
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1 PSM-200 Displacement sensor ........................................................................................4
2 Construction.....................................................................................................................5
2.1 Transmitter..........................................................................................................5
2.2 Receiver ..............................................................................................................5
3 System parts .....................................................................................................................7
3.1 PSM-200 Transmitter unit ..................................................................................7
Operation ..........................................................................................................7
Central position drive .......................................................................................7
Transmitter control ...........................................................................................7
3.2 PSM-200 Receiver unit ......................................................................................8
Operation ..........................................................................................................8
Environment protection ....................................................................................8
Led lights for aiming ........................................................................................9
3.3 Power unit 1........................................................................................................9
4 Receiver control & I/O...................................................................................................10
4.1 Abbreviations....................................................................................................10
4.2 Start-up .............................................................................................................11
1.1 Testing in start-up.............................................................................................11
1.2 Parameters ........................................................................................................12
1.3 Receiver I/O lines .............................................................................................12
2 Parameters......................................................................................................................14
2.1 Parameter memory selection ............................................................................14
2.2 Parameter numbers ...........................................................................................14
2.3 Parameter use....................................................................................................17
3 Serial communications...................................................................................................20
3.1 Transmit rate.....................................................................................................20
3.2 Echo control for the serial communication.......................................................20
3.3 Serial communication automatic transmission .................................................20
4 Analogue outputs ...........................................................................................................21
5 Digital outputs................................................................................................................22
6 Measuring modes ...........................................................................................................23
6.1 Laser beam hit point measurement ...................................................................23
6.2 The effect of the environment on the laser beam .............................................23
6.3 Selecting the mode............................................................................................24
6.4 Point mode ........................................................................................................24
6.5 Sweep mode......................................................................................................24
6.6 Direction of the measurement values on the screen .........................................25
7 Filtering the values.........................................................................................................26
7.1 Continuous filtering ..........................................................................................26
7.2 Point mode ........................................................................................................26
7.3 Sweep mode......................................................................................................27
7.4 Filter mode selection control ............................................................................27
8 Other control features ....................................................................................................28
8.1 Optical background radiation control ...............................................................28
8.2 Sample rate .......................................................................................................28
8.3 Sample timing...................................................................................................28
9 Installation .....................................................................................................................29
10
How to start ......................................................................................................30
11
Serial communication protocol.........................................................................31
11.1 Starting..............................................................................................................31
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12
13
14
15
16
11.2 ASCII protocol structure...................................................................................31
11.3 Password ...........................................................................................................32
11.4 Measurement values in the communication port ..............................................32
11.5 Parameter handling ...........................................................................................33
11.6 Linearity correction...........................................................................................33
11.7 Other commands ...............................................................................................34
11.8 Testing 35
11.9 Error messages..................................................................................................35
Handling and maintenance................................................................................36
Typical technical specifications........................................................................37
13.1 PSM-200 Receiver............................................................................................37
13.2 PSM- 200 Transmitter ......................................................................................38
13.3 Battery units......................................................................................................39
Mechanical parts ...............................................................................................40
14.1 PSM-200 Transmitter base ...............................................................................40
14.2 PSM-200 Receiver bottom................................................................................41
14.3 PSM-200 Receiver face ....................................................................................42
14.4 Receiver connecting box...................................................................................43
14.5 Receiver cable...................................................................................................44
14.6 Transmitter cable ..............................................................................................46
Laser classification ...........................................................................................47
Limited Warranty..............................................................................................48
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1 PSM-200 Displacement sensor
PSM-200 type measuring equipment bases to a laser transmitter and an optoelectronic
receiver connected to the object. The operator directs the eye-safe (EN 60825, class 2) visible
laser beam to the receiver and locks it in a steady position. The receiver recognises the beam
on the optical target and measures the position of the beam accurately up to 500 times a
second.
The very good environmental durability of the equipment is based mainly on the proper
modulation of the laser beam and optics and detection technology of the receiver, which over a
wide range eliminate the influence of sunlight, temperature, and medium air particles as fog,
rain, snow etc. on the measuring accuracy. The receiver recognises the power level of the laser
beam, which prevents measurement while the laser beam is too weak with respect to the
accuracy and thus eliminates faulty measurements.
The transmitter can be at a distance of up to 350 metres from the receiver, depending on the
type of transmitter and the environmental conditions. Beam movement (caused by the air
movement and temperature gradients in the air) may limit the measuring distance. The best
weather for the measurement is a calm overcast.
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2 Construction
2.1 Transmitter
The transmitter is a separate unit functioning on a 12 volt DC supply, which transmits a
modulated laser beam, either in a point or sweep mode. The transmitter is accumulatorpowered and is connected with the cable to the accumulator unit and operates when power is
switched on with the accumulator unit. The operation time depends of the accumulator type
used.
The power supply circuitry of the transmitter unit is equipped with a reverse voltage protection
to avoid voltage hazards from the power supply. Be careful and pay a special attention to the
polarity of the +12 VDC power supply, when connecting the power supply to the transmitter.
•
The laser transmitter transmits a narrow point type laser beam, either in a fixed direction or
in a sweep beam in a plane, depending on the transmitter type and operation mode. The
sweep angle is defined by the internal construction of the transmitter. The sweep can be
arranged in the vertical or horizontal plane by turning the transmitter to the corresponding
position. With the fixed transmitter it is possible to measure both co-ordinates in the receiver
simultaneously in the range of the receiver target area size. With the sweeping transmitter it
is possible to use either the vertical or horizontal measurements in the receiver, but a wider
operating area can be covered in the sweep direction.
•
The quick-fix base is for mounting the laser transmitter. The transmitter can be installed on
the base in two positions so that either a vertical or horizontal sweep is obtained.
•
The levelling base or the X/Y adjustment base is used by the operator, using the
telescope or sight, to direct the laser beam to the desired point in the receiver target area.
•
The battery unit and the cable are for the electrical supply of the transmitter.
•
The battery charger is for charging the battery unit
2.2 Receiver
The receiver is a splash proof unit, which is fixed with the screw on its base. On the front edge
of the receiver there is a connector, through which electrical power is fed and from which the
location information measured is read into the control unit. The brim of the receiver protects
against rain falling directly onto the optical surface and also against direct sunlight and knocks.
It is possible to read both sweep and fixed beams with the same receiver. When using a sweep
transmitter only one direction is measured.
The receiver withstands mechanical vibrations coming from the object and dust and moisture
coming from the environment.
On the front panel of the receiver there are three signal lights which show the location of the
beam in the central point of the optical target of the receiver. The signal lights make it easier to
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direct the transmitter onto the central point of the receiver. The signal lights show that the laser
beam is
-
on the screen
on the vertical axis
on the horizontal axis
•
The receiver measures the optical centre of gravity of the laser beam on the screen. When
using a fixed transmitter the receiver measures both orthogonal co-ordinates
simultaneously. When using the sweep transmitter the receiver measures the position of the
beam in the cross direction when it passes the central axis of the receiver. The position
signals are available in the receiver output as analogue signals or RS232 signals depending
on the user’s selection.
•
The protection cover protects the receiver optical screen from hazards, while not in use.
•
The Connecting box and the cable to connect the receiver to the control unit or PC.
•
The Battery unit and the cable for the electrical supply of the receiver.
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3 System parts
3.1 PSM-200 Transmitter unit
The transmitter is splash proof and operates in the temperature
range of from
-20 °C to +50 °C.
Operation
The operation of the transmitter can be controlled using the switches on the rear panel.
There are two different operating modes in the transmitter:
SWEEP
- point mode
- sweep mode
POINT
POWER
READY
In the point mode the laser beam is steady.
In the sweep mode the laser beam moves 20 times a second in the
vertical plane (or horizontal, depending on the position of the transmitter)
over the whole sweep angle range thus making a line which is 1 m long at 100 metres distance.
At 300 metres distance the line is correspondingly 3 m.
The operating mode is selected using the ‘sweep/point’ switch on the rear panel of the
transmitter.
The transmitter can be rotated 90° from its base to produce a horizontal scanning laser line.
Central position drive
After turning the mode from Sweep to Point the transmitter electronics drive the laser beam
automatically slowly (< 10 sec.) to the centre point and the red led light (READY) comes on,
showing that the laser beam is in the right position.
Transmitter control
A
B
V in
The supply voltage range is 10.5 VDC to 15 V DC including the reverse
protection
GND in Supply ground
voltage
The transmitter checks its power supply. When the power supply voltage (current) is insufficient
for the proper use, the laser signal is set off to avoid wrong measurements in the receiver.
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Option: The light indicator ‘Power’ shows that the supply power from the battery unit to the
transmitter is sufficient and the output power level of the laser is within the set limits. If the light
is off, check the battery charge or the power supply.
3.2 PSM-200 Receiver unit
Operation
The receiver measures the position of the optical centre of gravity of
the laser beam hit point on the optical screen. The measurement is
made using precision mechanics, optics, electronics and software.
The controller makes the controlling of the measurement and the
calculation of the results.
The controller allows several operation modes for the measurement and for the outputs of the
signals. The operation modes are explained later in this manual.
Environment protection
The receiver is splash proof and designed for continuous use in harsh environment. As an
optical device it demands, however, continuous maintenance to keep it in good condition.
Rapidly changing temperature can, for example, cause some moisturising on the optical
screen, which effects to the optical measurement.
To avoid moisturising, there is a filtered ventilation valve in the bottom of the receiver. It is
recommend keeping this area free and clear from dust to achieve sufficient ventilation.
If there exists moisture inside of the receiver, it is recommend drying the receiver by keeping it
in the normal room conditions until the moisturising is evaporated.
Clear ance
Vent
ilat i
ar ea
on
Bott om
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Led lights for aiming
S
V
H
S
H
V
PS M-200
R ec e iv e r
The three led lights on the left side of the receiver are for helping the directing and aiming of the
transmitter to the receiver.
The lights indicate that the laser beam is on the screen (S), on the horizontal axis area (H) or
on the vertical axis area (V).
The aiming level of the telescope is in the edge of the optical screen, either on the upper side
or on the right side depending on the direction of the transmitter.
The width of the area depends on the distance between the receiver and the transmitter and is
normally about 10-15 mm.
3.3 Power unit 1
The power unit includes a rechargeable battery,
which supplies the transmitter. The unit has a power
on/off switch.
The 12 V / 6.5 Ah battery is capable of supplying the
PSM-200 transmitter for 40 to 50 hours or PSM200/90 receiver for 4-6 hours.
On
A
POWER
C
B
Off
PSM-200
Power unit
The connector:
A
B
C
V out (Supply)
GND
V in (Charger)
12 V
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4 Receiver control & I/O
The controller inside the PSM controls all the operation and calculates the measured values in
the desired form. The user can communicate with the controller through a serial communication
port using an ASCII-protocol.
2 x 12 b D/ A
0-20 m A
AO
+ -10 V AO
Cont r oller
4x
12 bit
AI
AI1
SY
dY
SX
dX
4x
12 bit
AI
6 x DO
ROM
DI-1
DI-2
DI-3
3 x DOL
DOL-1
DOL-2
DOL-3
EEPROM
TxD
RxD
DO-1
DO-2
DO-3
DO-4
DO-5
DO-6
3 x DI
RAM
AI2
AO-1
AO-2
AO-1
AO-2
RS 232
TxD
RxD
4.1 Abbreviations
RAM
Memory unit, where the parameters are during the operation. Changes to
parameters in this memory effect immediate taking into use of parameter, but the
changes don’t stay in the memory during power off.
ROM
Memory unit, where the basic default parameters are, if EEPROM-parameters are
not usable
EEPROM Memory unit, where the application specific parameters are stored. In start-up
(power on) the parameters are taken from this memory as a default parameters to
RAM.
AI
Analogue input unit for measuring and control signals
AO
Analogue output signals for data logger or computer
DO
Digital outputs / relays for control
DI
Digital inputs for control
DOL
Digital outputs for LED-signalling
RS 232
Serial communication line for PC
Controller Internal computer unit for measurement value calculations and control operations
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4.2 Start-up
The system starts with parameter values found from EEPROM.
NOTICE! User should take care that system does not receive SPACE-ASCII code (hex 20, dec
32) within 2 seconds after power up. In case system receiver the SPACE, it will not load
parameters from the EEPROM, but starts with non-calibrated parameters from ROM. In case
this is suspected to happen the system should be shut-down and restarted before any
parameter modifications or other use of the system.
The ASCII-protocol of the controller can be used and tested, for example using standard
communication software, such as ProComm, or from user-specific software.
At the Start-up the device outputs typically a following message:
RE003348 081027; Device number and manufacturing date
U = 11.7 V ; supply voltage at start-up
I = 133 mA; supply current at start-up
X1= 5.0 V ; output X test level 1
Y2= 9.9 V ; output Y test level 2
X2= 10.0 V; output X test level 2
Y1= 4.9 V ; output Y test level 1
The device can also output message:
ERR:SUPPLY VOLTAGE!, if the supply voltage is too low, or
ERR:X output voltage!, if AO-X-signal is not correct, or
ERR:Y output voltage!, if AO-Y-signal is not correct.
If the device outputs any of those error messages, it stays to error state during 30 seconds,
showing with LED’s and relay outputs the error type, and continues after that normal operation.
After that the controller automatically starts the sending of the analogue current or voltage
output signals and, according to the parameters, the output to the serial port.
1.1 Testing in start-up
The device will perform some testing during the start-up to ensure the correct operation. The
tests are:
1
Checking the parameter memory EEPROM
2
Checking the linearity correction memory
3
Checking every LED and Relay output. The user can monitor the operation and detect a
faulty output.
4
Measurement of the supply voltage
5
Measurement of the analogue outputs (see par 81)
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If some of these tests don’t pass the checking, the device stays to error state for 30 seconds,
during which time the user can, by monitoring the LED’s, see the reason for the error.
LED operation:
Middle LED and both side LED’s turn on and off at 0.5 second rate.
0.5
Relay outputs define the error type during 30 sec.
DO1
DO2
DO3
DO4
X-voltage error
Error in the linearity memory (linearity correction deactivated)
Supply voltage too low
Y-voltage error
DO5 Other error
DO6 Error in the parameter memory (try re-starting)
One or several of these error indicators can be active at the time.
Supply power is measured every 60 seconds; other checking’s only at the start-up.
1.2 Parameters
There are two different kinds of parameter areas in the controller:
1. Current parameter area in RAM (controller RAM)
2. Application parameter area in EEPROM (application EEPROM)
The user can change the parameters in the application RAM and thus get, for example, some
automatic application-specific functions.
1.3 Receiver I/O lines
The receiver has several I/O signals for the controlling of the operation of the measurements.
All signals are not connected to the output connector. The connector is located in the back of
the receiver. In the standard installation the maximum number of the signals in the connector is
19.
Power supply:
V in
Supply voltage, normally 24 VDC
V Gnd
Ground for the supply voltage, 0 VDC
RS232 serial communication:
RxD
Received data
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TxD
Transmitted data
RS232 Gnd Ground for the RS232 signals
Analogue Output:
AO1 +
Voltage/current output 1 for the measured signals
AO2 +
Voltage/current output 2 for the measured signals
Digital input:
DI-1 +
Sweep direction selection. Selects the horizontal or vertical
sweep control.
DI-2 +
Filter control for the measurement (See parameters)
DI-3 +
Sweep/point mode selection. Sets the receiver
into the sweep mode. (See parameters)
Digital output:
DO1 +
Digital output 1
DO2 +
Digital output 2
DO3 +
Digital output 3
DO4 +
Digital output 4
DO5 +
Digital output 5
DO6 +
Digital output 6
Note: See the detailed operation and electrical specifications of the signals later in this manual.
See also the parameters.
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2 Parameters
2.1 Parameter memory selection
Parameters can be changed through the serial communication to controller RAM and saved
then to application EEPROM.
The controller starts always with the application values from EEPROM.
2.2 Parameter numbers
(vers 3.0x) ( controller board PSMMC072)
All parameters in use are in the controller RAM. The parameters can be 1 to 8 bits long. Some
parameters need to be confirmed (con).
Parameters written to the controller RAM are taken into the use immediately.
A = ASCII-sign = 8 bits
B = Binary value, 8 bits
d = Default value
b = number of bits used
Parameters marked wit T can be set using T-command (details in chapter Error! Reference
source not found.: “Error! Reference source not found.”).
Parameters marked with * require confirmation
Parameters marked with C require password
With command X and S are used to save the parameters to the EEPROM (permanent
memory). In this case the confirmation is always required.
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b Contents
d
min
max.
01 T B
02 – 11C
12 – 13C
14 – 15C
16 – 17C
18 - 20
Device number
A
A
A
A
1
1
Serial number
date, yy
date, mm
date, dd
Reserved
255
21
22
23
24
25
TC
TC
TC
TC
TC
8
8
8
8
8
X gain adjustment (X<1000), (x 0.1)
Y gain adjustment (Y<1000), (x 0.1)
X/Y gain basic value
X gain adjustment (X>1000), (x 0.1)
Y gain adjustment (Y>1000), (x 0.1)
100
100
120
100
100
1
1
1
1
1
255
255
255
255
255
26
27
28
29
T*
T*
T*
T*
8
8
8
8
AI1-1 multiplier
AI1-2 multiplier
AI1-3 multiplier (temperature)
AI1-4 multiplier (inclinometer)
100
100
100
100
0
0
0
0
244
244
244
244
30
31
32
33
34
T*
T*
T*
T*
T
8
8
8
8
4
AO1 lower limit, (*16)
AO1 upper limit, (*16
AO2 lower limit, (*16)
AO2 upper limit, (*16)
X/Y filtering in point mode, DIO2 off
sample# x 2value
4 X/Y filtering in point mode, DIO2 on
sample# x 2value
0
255
0
255
2
0
0
0
0
0
255
255
255
255
15
5
0
15
4 Width of the Y-axis centre area of the digital
outputs,
0 = 0.1mm, 1=0.5 mm (±0.25mm), 2=1 mm, etc
4 Width of the X-axis centre area of the digital
outputs,
0 = 0.1mm, 1=0.5 mm (±0.25mm), 2=1 mm, etc
8
0
15
8
0
15
5
6
0
0
14
14
0
1
0
0
1
1
0
0
1
0
1
1
0
0
0
1
1
1
35 T
36 T
37 T
38 T* 4 AO1 source
39 T* 4 AO2 source, where 0 = no source (AO=0)
5 = calculated X 6 = calculated Y
40 T 1 Linearisation on/off (0/1)
41 T* 1 Analog output polarity
(0 = 0..10 V , 1 = ± 10 V)
42 T
1 Analogue output in sweep mode
0 = not used output set to 0
1 = not used output set to middle point
43 T* 1 Analog output - Voltage/Current (0/1)
44 T 1 Analogue output in the middle, when no beam
45 T 1 DO control, 0=from centre line,
1=from the centre area edge
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b Contents
1 Echo on/off, 0=off, 1=on
(May be set on by the command ‘E’ and off
by the command ‘e’)
1 n Successful measurements before Output
d
0
min
0
max.
1
1
1
100
1 Back light control, 0=off, 1=on
(error message=9999)
1 Sweep mode on/off, 0=off, 1=on
1 Sweep vertical/horizontal, 0=ver, 1=hor
1 Sweep one/both axis, 0=both, 1=one
(one axis : see the par. 50)
1
0
1
0
0
0
0
0
0
1
1
1
1
1
0
0
1
1
54 T* 4 AO1 , 0=0-20mA, 1=4-20 mA
0-10 V / 2-10 V, respectively
55 T* 4 AO2 , 0=0-20mA, 1=4-20 mA
0-10 V / 2-10 V, respectively
0
0
15
0
0
15
56
2 RS232 automatic transmission,
where 0=only on command
1/2=transmission of AI1/AI2 raw values
3=transmission of calculated X/Yvalues
57 T* 2 Not used
58 T* 1 Not used
0
0
3
0
0
0
0
3
1
59 T
60 T
232
251
0
0
255
255
61 T* B RS232/485 baud rate,
4
4=9600,5=19200,6=38400,7=56700,8=115200,9=230600
1
6
62 T* 1 X-axis signal, 0=normal, 1=inverted
63 T* 1 Y-axis signal, 0=normal, 1=inverted
1
0
0
0
1
1
64 T
65 T
66 T
0
0
0
0
11
11
1
14
14
0
0
255
46 T
47 T
48 T
49 T
50 T
51 T
52 T
53 T
67 T
1 Relay outputs X on/off, 0=off, 1=on
1 Relay outputs Y on/off, 0=off, 1=on
B Continuous filtering, Sweep mode
B Continuous filtering, Point mode
1 1/100 mm to serial communication data
4 First extra data added to serial output
4 Second extra data added to serial output
(see parameter 39)
8 Continuous filtering for value(par65)
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68 T
69 T
70 T
71 T
72 T
73 T
74 T
75 T
b Contents
d min max.
8 Digital output X offset, +- 0.1 mm ... 12.7 mm 127 0
8 Digital output Y offset, +- 0.1 mm ... 12.7 mm 127 0
8 X/Y filtering in sweep mode,
sample# +1, DIO2 off
8 X/Y filtering in sweep mode,
sample# +1, DIO2 on
8 X-offset, +- 0.1 mm ... 12.7 mm
8 Y-offset, +- 0.1 mm ... 12.7 mm
0
0
255
2 0
127 0
127 0
255
255
255
255
255
4 RS232 transmit rate, where
1 0 15
0=continuously, 1-15 = every (value * 10)th sample
4 X/Y sample rate, 0 ... 15 , where
0 0 15
0 = continuously, (2+1.85ms * value)
76 T
8 Delay after relay state change
(value * samples)
77 TC 8 Signal level increase in SWEEP-mode
(value * 2mV)
78 T* 8 Middle area size for LED’s (mm)
79 T 1 Warming on/off (0/1)
0
0
0
0
255
255
0
0
0
0
10
1
80 TC 8 X-axis tilting , 127 = no tilt
127 0
0 = right –12.7 mm (left 12.7 mm)
255 = right 12.7 mm (left -12.7 mm)
81 TC 8 Y-axis tilting , 127 = no tilt
127 0
0 = upper –12.7 mm (lower 12.7 mm)
255 = upper 12.7 mm (lower -12.7 mm)
256
82 T
83 T
1
1
1 X/Y voltage test in startup on/off (0/1)
1 Supply voltage test during measurement
on/off (0/1) (every 30 sec.)
84 TC 8 Supply Voltage Limit [0.1V]
85 - 256
0
0
0
0
256
105 0 255
Reserved
2.3 Parameter use
Device and software identification
Par #
Description
1
Device number
2 to 11 Serial number
12 to 13 date, yy
14 to 15 date, mm
16 to 17 date, dd
Used for controlling the receiver software version, update and maintenance. Don’t change.
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Calculation of X/Y values (see chapters 8, 10 and 12)
21
X gain adjustment
22
Y gain adjustment
23
X/Y gain basic value
24
X gain adjustment
25
Y gain adjustment
Used for X/Y axis measurement values calculation and calibration.
Note: Don’t change parameters! It will change the calibration of the X/Y measurement.
62 X-axis signal, normal/inverted
63 Y-axis signal, normal/inverted
72 X-offset
73 Y-offset
75 X/Y sample rate
48
80
81
40
Back light control
X-axis tilting
Y-axis tilting
Linearisation on/off
Analogue inputs (see chapter 8)
29 AI1-4 multiplier (inclinometer)
Used for external analogue input signal scaling.
Analogue outputs (see chapter 7)
30 AO1 lower limit
31 AO1 upper limit
32 AO2 lower limit
33 AO2 upper limit
Used for analogue output signal scaling.
38 AO1 source
39 AO2 source
Source selection for analogue outputs.
42 Analogue output in sweep mode in the middle without signal
44 Analogue output in point mode in the middle without signal
54 AO1 , 0-20mA, 4-20 mA
55 AO2 , 0-20mA, 4-20 mA
41 Analog output polarity
43 Analog output - Voltage/Current
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Filtering (see chapter 11)
34 X/Y filtering in point mode
35 X/Y filtering in point mode
59 Continuous filtering, Sweep mode
60 Continuous filtering, Point mode
70 X/Y filtering in sweep mode,
71 X/Y filtering in sweep mode,
67 Continuous filtering for source defined by par 65
Digital outputs (see chapter 9)
36 Width of the Y-axis centre area of the digital outputs,
37 Width of the X-axis centre area of the digital outputs,
45 DO control, middle/edge
52 Relay outputs X on/off
53 Relay outputs Y on/off
68 Digital output X offset
69 Digital output Y offset
76 Delay after relay state change
Serial communication (see chapters 6 and 14)
46 Echo on/off
56 RS232 automatic transmission
74 RS232 transmit rate
61 RS232/485 baud rate
64 1/100 mm to serial communication data
65 First extra data added to serial output
66 Second extra data added to serial output
Sweep control (see chapter 10)
49
50
51
77
Sweep mode on/off
Sweep vertical/horizontal
Sweep one/both axis
Minimum signal level in SWEEP-mode
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3 Serial communications
3.1 Transmit rate
The serial communication transmit rate in the parameter 74 determines the rate for transmitting
the filtered and calculated values to the serial port. The rate is calculated from the values that
are already handled by the filter and sample rate factors.
The transmit rate is calculated with the formula:
transmit_rate = 1 / (parameter_value * 10)
For example if one wants to update the analogue outputs 50 times a second, but send only one
value a second to the serial port, the value can be set to 5.
3.2 Echo control for the serial communication
The echo control parameter determines, whether the characters are echoed back to the line or
not.
In the echo-mode the activation of the communication line with an [ESC]-character echoes the
'>' sign back to the operator signalling that the controller is ready to receive a command. All
characters given are then echoed back to the transmit line. This mode is meant mainly for
manual use with the terminal or PC with terminal software such as ProComm.
In the no-echo-mode only confirmation of some parameter changes outputs 'OK Y/N?' to the
transmit line. No inputted characters including [ESC] are echoed back.
3.3 Serial communication automatic transmission
Using the parameter 56 the transmission of the desired measuring data can be set to start
automatically in the power-on situation of the receiver. The desired data is selected with the
parameter. The transmission stops or interrupts, when a command is given to the controller via
a serial communication port.
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4 Analogue outputs
- 2 pcs of 12 bit outputs
Each output can be used in four different forms; (0-20 mA, 4-20 mA, ± 10 V and 0-10 V).
Current output can be changed by parameter 54 and 55 to 0-20 mA or 4-20 mA. Analogue
outputs start to operate according to the parameters immediately after the self test at power-on.
When there is no signal on the optical screen, thus giving a measuring result 0, the analogue
outputs can be selected to have either the lowest possible value or the middle value by
parameters 42 and 44. The source for analogue outputs can be selected with the parameters
38 and 39.
The filtering of the calculated X/Y-values for the serial communication affects the update rate of
the raw values in the analogue output. For example if in serial communication the filter gives 2
values a second, the analogue outputs are updated also 2 times a second. The signals in the
analogue outputs can be scaled to the proper scale by writing the upper and lower limits for the
parameters 30 to 33. Scaling (parameters 30-33) does not affect the raw values 1-4. (See
parameter 38/39)
The scale is for 0-10V output:
1V = 2 cm (PSM-200 and PSM-220)
For 0-20 mA output:
1mA = 1 cm (PSM-200 and PSM-220)
The scale changes correspondingly if the output is selected to ± 10V or 4-20 mA
Calculating the upper and lower limits:
usable area
0V
5V
10V
Full range is 10V
Needed range only from 3.5 to 7.5 V
Lower limit is 3.5/10 * 255 = 89
Upper limit is 7.5/10 * 255 = 191
Full measuring area
The analogue signal from the selected range (4 V) is now enlarged to the 10 V output area,
multiplied by 2.5.
Note: During the key-in operations from the serial communication port:
- no updating of analogue output is done
- in no-echo mode the outputs stay in their previous positions
- in echo mode the outputs are set to zero
Note: When there are no laser spot on the screen, the outputs are set to zero or middle value
(defined by parameter 42 and 44).
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5 Digital outputs
6 pcs relay outputs (60 V / 300 mA), working as described below.
abc
1
2
3
DO5
DO2
DO6
DO3
DO1
DO2
DO3
DO4
DO5
DO6
- X-value on the middle area
- Y-value on the middle area
- X-value on the left (right)
- X-value on the right (left)
- Y-value on the upper (lower) side
- Y-value on the lower (upper) side
DO1 DO4
The limits for the width of the middle area are set by the parameter 37. The width can be set
from 0 to 15 mm in 0.5 mm steps.
Parameter 45 defines the starting point of the left/right and upper/lower outputs to be either
from the centre line (b / 3) or from the middle area edges (a,c / 2).
The middle point of the relay outputs can be adjusted ± 12.7 mm from the centre line by writing
the desired offset to the parameters 68-69. For example, when changing the middle point by +5
mm from 100.0 mm to 105.0 mm, give to the corresponding parameter the value 127 + 50 =
177.
The outputs can be selected to work on one or both axes at the same time or not at all. The
parameters 52 and 53 determine, whether the outputs are in use or not.
For example if the outputs for the Y-axis (DO2, DO5, DO6) are not in use, but the outputs on
the X-axis (DO1, DO3, DO4) are in use, the parameter 52 is set to 1 and parameter 53 set to 0
to avoid unnecessary relay operation.
Note: During the key-in operations from the serial communication port:
- no updating is done
- in no-echo mode the outputs stay in their previous positions
- in echo mode the outputs are set to zero
Note: When using the inverted output signals (parameters 62 and 63)
- the relay outputs DO3 to DO6 change correspondingly
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6 Measuring modes
6.1 Laser beam hit point measurement
C
B
A
The laser beam is focused for a specific distance, usually 100 m. At this distance the beam is
about 10 mm in diameter. At 200 metres it is about 2-3 cm and at 300 metres about 4-5 cm,
etc.
When the beam hits the optical screen, the receiver detects the optical centre of gravity of the
beam (A) and calculates the position value for that point. In that sense the size of the laser
beam has no effect on the measurement accuracy. When the beam is not totally on the optical
screen (B) or a mechanical obstacle covers it partly (C), a change in the position of the optical
centre of gravity correspondingly arises and the measured value is slightly erroneous.
The usable optical measuring range depends on the measuring distance and is full 180 mm
only at close range (typ. < 150m). At long ranges the measurement range is decreased a little
due to the increased size of the laser beam.
6.2 The effect of the environment on the laser beam
The semiconductor laser beam is very stable as such, but the propagation of the optical
radiation in the open air is not always rectilinear due to turbulence (gradient index variations) in
the air. It adapts easily to the air movement caused by wind, hot sunshine, hot surface, etc.
This may cause laser beam movement on the receiver screen, which can be seen in the
measurement as a rapidly moving measuring value or noise in the signal. This can be
alleviated in practice by using a proper filtering and by shortening the maximum measuring
distance.
Rain, snow, fog, etc may cause attenuation of the optical beam, but do not affect in practice to
the accuracy of the measurement until the signal is too low and the receiver stops its
measurement by detecting a too low signal level. There will be no faulty measurement values
because of light rain or snow.
There must always be at least moderate visibility from the transmitter to the receiver to be able
to measure, but when the measuring value is got, it is the right value.
A very good weather for the measurement is a light overcast with light rain. Then the wind is
often not heavy and the air is stable.
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6.3 Selecting the mode
The measuring mode can be selected using parameter 49 or an input signal line. The primary
mode selection is done with the parameter. When the parameter is set to point mode, the
measuring mode can be selected using the input line. When the parameter is set to sweep
mode, the input line has no effect on the mode selection.
6.4 Point mode
The receiver measures the position of the laser beam on both X- and Y-axis simultaneously.
When the beam is not on the screen, the measured value is always set to zero and the
analogue and digital output signals are set to zero.
6.5 Sweep mode
In the sweep mode the laser beam moves over the optical screen in one plane 20 times per
second. The sweep angle is about 1m at 100 m.
4
CD
3
A
B
1
2
When the laser is sweeping in the vertical plane as in the picture, the beam can rapidly pass
the screen (line 1) or it can be on the screen the whole time (line 3) depending on the distance
of the transmitter unit. It can also just visit the screen (line 2 and 4).
The sweep rate will define the output rate.
When the beam does not enter the screen frequently, the measuring result and all outputs are
set to ‘no signal’ output situation.
The same operation works in both the vertical and horizontal direction, but in the one direction
at a time.
The parameters 50 and 51 select the operation of the sweep control.
The parameter 51 chooses the operation in the dual-axis mode or in one-axis mode. In dualaxis mode the sweep direction is selected automatically, but there may be some faulty readings
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which cause inaccurate measuring values. In the one-axis mode only the desired axis is read,
and the measurement is more reliable and more accurate.
If the one-axis mode is selected, the direction can be selected with the parameter 50 or an
external input (DIO-1). If the parameter 50 is set to zero (vertical sweep), the direction can be
changed using the external input. No signal in the input means vertical sweep, signal in the
input means horizontal sweep.
If the parameter 50 is set to 1 (horizontal sweep), the direction cannot be changed with the
external input line.
6.6 Direction of the measurement values on the screen
200
B
100
A
Y 100
100
0
0
100
X
200
The active measurement area is not more than 180 mm in diameter. The side areas on the
screen are used for collecting the whole beam for the measurement of the side area values.
For example the measured value 190 at point B (or 10 at point A) is measured from the beam,
that covers the optical screen area from 180 to 200 mm ( 0 to 20 mm, correspondingly). The
central point of the screen is shown as a measurement value 100,100 mm.
The measurement values are given from left to right or from bottom to top as values 0 to 200,
shown from the front side of the receiver. The inverted measurement values are given from
right to left or from top to bottom. When the beam crosses the border 0, it is always zero (no
negative values).
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7 Filtering the values
X/Y values can be filtered with non-continuous time filters set in parameters 34-35 or 70-71.
The filter value depends on the operation mode. There are different filters for both operation
modes.
7.1 Continuous filtering
Parameters 34,35,70 and 71 show the number of samples to be taken to each end value
(averaging). End values are taken to the filter, which calculates weighted average from new
value and old values:
Parameter 59 (sweep) and 60 (point) select the weighting of the last value so that 0 means ‘no
filtering’ and 255 means ‘full filtering’
The filtered value is calculated from the source data as follows:
Filtered data = old value * filter/256 + new value * (256-filter)/256
For example filter value 200 takes 20 % of new value to final result. The benefit of this is that
measurement result variation in short time periods ( <5 s) will stabilise radically. The proper
filter value depends on measuring distance, environmental conditions, needed measurement
speed and accuracy. A good sophisticated guess for tamping machines is filter about 4% (240),
which gives a good compromise between speed and stability.
This filter doesn’t effect radically to very slow speed changes in the air gradients, where time
can be up to several minutes and measurement result variation several millimetres in 400
meters distance.
7.2 Point mode
parameter Number of
Filter time
Filter time
value
No linearisation
With linearisation
samples
0
1
2.0 ms
2.0 ms
1
2
2.0 ms
2.0 ms
2
4
2.0 ms
2.0 ms
3
8
2.4 ms
3.2 ms
4
16
4.7 ms
7.0 ms
5
32
9.4 ms
13.5 ms
6
64
18.3 ms
29 ms
7
128
37 ms
54 ms
8
256
75 ms
105 ms
9
512
147 ms
206 ms
10
1024
314 ms
435 ms
11
2048
636 ms
815 ms
12
4096
1.25 s
1.66 s
13 - 15
8192
2.4 s
3.33 s
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The receiver collects the ordered number of samples calculated from the parameter value in
parameter 34/35 to the filter. The receiver takes samples for the filter about 1000 times a
second. The number of samples is calculated from the formula:
samples = 2 parametervalue
The value in the parameter is limited to 13. This gives the maximum number of samples as
8192 and the filtering time about 3.33 sec (2.4 seconds without linearisation)
7.3 Sweep mode
The receiver collects the ordered number of samples calculated from the parameter value in
parameter 70/71 to the filter. The receiver takes samples for the filter about 20 times a second
in the normal transmitter sweep operation (10 Hz). The number of samples is calculated from
the formula:
samples = parametervalue + 1
For example if the parameter value is 5, the number of samples in the filter is 6 and the time is
about 0.3 sec. If the parameter value is 50, the number of samples in the filter is 51 and the
time is about 2.5 sec.
7.4 Filter mode selection control
There are two selectable filter modes in the controller. The external input DIO-2 works as a
control line for the filter mode. When there is no signal in the input line, the measurement uses
filter 1. When there are signal in the input line, the measurement uses filter 2.
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8 Other control features
8.1 Optical background radiation control
The background radiation control feature senses the amount of the optical background
radiation to the detector. If there is too much background radiation for a reliable measurement,
causing a non-reliable measuring result, the measuring result is set to zero. Too high
background radiation can be caused, for example, by direct sunshine on the optical screen. If
the control is not wanted, the parameter is to be set to the 'no control' position and the receiver
will measure all the values that it can get, despite the possible unreliability of the results.
8.2 Sample rate
The parameter 75 determines the sample rate of the analogue inputs. The rate is calculated by
a timer, which generates a delay between two sample readings. The rate is calculated with the
formula:
delay between two samples = 2 ms + parametervalue * 1.85 ms
For example if the sample rate is 4, the sample is taken to the outputs and to the filter every
24th ms and with no filtering the update time of outputs is 40 times a second. The sample rate
effects the filtering and the update speed by increasing the sample time by the sample rate
time. This parameter only works in the point mode.
8.3 Sample timing
The controller collects sample of the measurement while calculating previous measurement
values. All four channels are sampled at the same time and set to hold state for converting and
calculating the values. The maximum sampling rate is 1 ms when collecting data to the filter
(1000 measurements/sec.). The measurement data is the value of the last 0.1 ms of the
sample time. The maximum rate for calculated values is sample time + hold time + calculating
time = 2 ms
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9 Installation
Transmitter/receiver mutual position
Adjust the mutual position of the transmitter and the receiver so that the centre line of both units
is in the same line. The cross hair lines of the telescope are adjusted coaxial with the laser
beam, when it is in the middle position.
The distance between the telescope line and the laser line is 100 mm. The telescope shows
always the aiming line of the receiver, when the laser beam is in the middle point.
Direct the receiver straight to the transmitter. The maximum angle between the laser line and
the receiver centre axis is mentioned in the technical specifications.
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10 How to start
You need either a tripod or other special mechanical parts for the mounting of receiver and
transmitter. Both have 5/8” thread in the bottom.
1. Connect cables as follows:
MIL 3p / 7p
MIL 10 pin
MIL 3p / 7p
RS-232
SWEEP
POINT
POWER
READY
2. Turn switch to POINT AND wait the ready led sign on
3. Direct the transmitter to the centre of the receiver target area
4. Start the software and follow the instructions
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11 Serial communication protocol
Serial communication uses a simple ASCII protocol. Measurement values can be read to any
PC communication program (such as ProComm) for local use and parameter settings or they
can be read automatically from application software.
In serial communication the following format is used:
1 start, 8 data, 1 stop, no parity
Value of parameter 61 defines the baud rate (4=9600, 5=19200, 6=38400, 7=56700, 8=115200,
9=230600). Baud rate sets at the start-up, so parameter must be saved into EEPROM to have
an effect (with X- and S-commands).
A parity bit can be used in conjunction with 7 data bits. In the 8-bit mode parity is ignored.
The input mode is activated and the commands are started with the [ESC]-sign (ASCII 27 dec).
After [ESC]-sign the controller ignores the previous signs and starts the input sequence again.
In the echo-mode the controller outputs an '>' -sign to show that it is in the input mode. In the
no-echo-mode the command can be entered directly after the [ESC]-sign. No other sign
activates the input of the serial communication port.
The measuring result transmission is paused during the key-in operations and it continues
automatically, if there are no changes in the transmission modes.
Some commands and parameters require a confirmation to become active. The confirmation is
always asked by typing 'OK Y/N?' to the communication port and the reply needed is 'Y'.
11.1 Starting
Start-up takes about three seconds which after the PSM-200 controller is ready to response to
the commands and measurement starts.
11.2 ASCII protocol structure
Command starts with ESC (asc 27) and ends with CR (asc 13).
ESC deletes also wrong command.
If echo-mode is on, ESC returns line feed and “>” (asc 62).
Command:
Response:
[ESC]K[n][,d][,d]...[,d][CR]
K,nnn[,d]...[,dddd][CR][LF]
where K = command letter
n = device number (1 ... 255)
if the device number is 0 or it not exists, all devices
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respond
d = value (0 ... 9999)
, = separation mark (also space accepted)
ESC=Escape (ASCII 27)
CR=Enter (ASCII 13)
LF=Line Feed (ASCII 10)
***** = password
11.3 Password
Some parameters need password to change them. This is mainly for protecting the user to
accidentally giving faulty values to critical parameters.
With the password the system allows changing all parameters.
The password is given as follows:
B[n],*****[CR]
give password *****,
Where ***** is a device specific password
If the password is erroneous, the system answers: “ERR:INVALID CODE?”. When the
password is correct, the system answers: “NOW ENTERING PARAMETER MODE, RESTART
TO RESUME NORMAL OPERATION!”. Setting all parameters is now possible.
The password is generating using serial number and it is delivered with the testing documents.
11.4 Measurement values in the communication port
R[n],a[CR]
Send scaled value continuously from AI-a,
where a = number of the AI 1 or 2
r[n],a[CR]
Send scaled value once from AI_a,
where a = number of the AI 1 or 2
response:
R,nnn,a,yyyy,yyyy,xxxx,xxxx[CR][LF] ,
where
nnn = device number and
a = number of the AI 1 or 2
xxxx = yyyy = 0000 ... 9999
AI2: ΣY,dY,ΣX,dX
AI1: AI1.1, AI1.2, AI1.3, AI1.4
C[n][CR]
Send calculated X/Y-value continuously
c[n][CR]
Send calculated X/Y-value once
response:
C,nnn,xxxx,yyyy[CR][LF] ,
nnn = number of the device
xxxx = yyyy = calculated measurement
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000.0 ... 999.9 mm
Q[n][CR]
Stop sending data
11.5 Parameter handling
T[n],p,d[CR]
Write parameter to RAM
p = Number of parameter (address) 1, 21 ... 69 and
d = parameter value 0 ... 255
some parameters need to be confirmed
L[n][,p][CR]
Read parameter from RAM
p = Number of parameter
if p is not given, read all parameters
response:
L,nnn,ppp,ddd[CR][LF] ,
nnn = number of the device
ppp = number of the parameter
ddd = parameter value
S[CR]
Save All parameters to EEPROM (confirm).
EEPROM writing must be first enabled with command X.
X[CR]
Enables writing to the EEPROM (to be used together
with S-command).
P[n][,ppp][CR]
response:
D[n],*****[CR]
Read parameter from EEPROM
ppp = number of the parameter
if p is not given, read all parameters
P,nnn,ppp,ddd[CR][LF] ,
nnn = number of the device
ppp = number of the parameter
ddd = parameter value
Save all parameters from RAM to EEPROM (confirm)
11.6 Linearity correction
Linearity correction values are stored to a permanent memory. The raster is 1 cm in both
directions. The range of the correction is ± 1.27 mm. The values are calculated in the
calibration of the device and user must not change them without proper calibration equipment.
M[n],p,d[CR]
Writes the byte d to memory location p
Where p=0-8191 and d=0-255
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response:
[CR][LF]OK[CR][LF] ,
N[n],p[CR]
response:
Reads a byte from memory location p
N,nnn[CR][LF] ,
nnn = byte value
O[n][CR]
Calculates and saves the checksum
11.7 Other commands
E[n][CR]
Echo on
e[n][CR]
Echo off
F[n][CR]
Set receiver to sweep laser mode
f[n][CR]
Set receiver to point laser mode
v[n][CR]
Read the controller program version
G[n][CR]
Reboots the receiver
U[n][CR]
Performs start-up test
Returns following information:
U – supply voltage
X – X voltage 1
Y – Y voltage 2
X – X voltage 2
Y – Y voltage 1
I[n][CR]
Outputs following device information
NOPTEL OY 31.10.2008
PSM MEASUREMENT DEVICE MC072
SERIAL NRO: RE000007
PARAMETER DATE: 190907
SW VERSION: 3.02.20
CURRENT MODE: POINT
SWEEP DIRECTION: VERTICAL
FILTERING: LOW
UBAT = 11.5 V
5V = 4.91 V
+V = 11.5 V
-V = -13.4 V
Van = 3307 mV
UCP = 3307 mV
I tot = 143 mA
Temp = +39.6 °C
X out = 5.0 V (5V test)
Y out = 4.9 V (5V test)
Incl = 8 mV
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11.8 Testing
A[n][d][CR]
Write the value d to both analogue outputs
(only for tuning)
where
d is value 0-4095 to AO1 and AO2
H[n][d][CR]
Write the pattern d to digital outputs
(only for tuning)
U[CR]
Write the pattern d to digital outputs
(only for tuning)
I[n][d][CR]
Write the pattern d to digital outputs
(only for tuning)
11.9 Error messages
ERR:MEM?
EEPROM memory error
ERR:MEM READ?
EEPROM memory read error
ERR:MEM WRITE? EEPROM memory write error
ERR:INVALID VALUE?
Given value not in allowed range
MEM:EEPROM?
EEPROM checksum has changed after previous start-up.
ERR:INVALID CODE?
Invalid password
ERR:SUPPLY VOLTAGE! The supply voltage is too low, or high
ERR:X output voltage!
AO-X-signal is not correct
ERR:Y output voltage!
AO-Y-signal is not correct.
ERR:LINEARITY MEMORY!
Linearity memory checksum error.
Linearity compensation will be OFF.
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12 Handling and maintenance
The equipment is protected against environmental hazards, (rain, dust, snow, vibration, etc.)
but as an optoelectronic equipment it requires careful handling and maintenance.
Storage
When the system is not in use, it is recommend keeping the equipment in a safe place,
protected against dust, moisture and mechanical shocks or when it is not possible to remove
the units from their installation bases, to protect the units with their own covers.
Cleaning the optical surfaces
When starting the measuring operation, it is recommended cleaning the optical surfaces, such
as the target area of the receiver and the window of the transmitter from dust and moisture,
which might appear during transportation or storage.
Covering the optical surface
Install the protecting cover always on the receiver front face, when the receiver is not in use to
protect the optical surface from mechanical shocks and uncleanness.
Handling
The equipment includes optical parts, electronics and precision mechanism. Handle the units
with care, do not drop them on the ground and avoid all unnecessary mechanical shocks to the
units.
Connectors
The units have electrical connectors on the back panel. The connectors are MIL-type, rugged
and environmental proof. Do not keep the connectors open during transportation or in bad
operation conditions to avoid dust and moisture penetrating the connector and causing bad
contacts in the signal lines. When the connector is not in use, protect it by keeping the cover
bid on.
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13 Typical technical specifications
13.1 PSM-200 Receiver
Power supply
Supply current
Start-Up current
Min. switch off time
Operating temperature
Optical area size
Measuring area
Nonlinearity (140 mm)
Nonlinearity (160 mm)
Resolution
Beam hit angle
Background radiation
Serial communication
Analogue output, 2 ports
Digital outputs, 6 lines
Digital inputs, 2 lines
Max. measurement rate
Weight
Dimensions (max. H W L)
11 - 30 VDC
<150 mA @ 24 V
<700 mA @ 24 V
1 sec.
-20 ... +50°C
220 mm x 220 mm
200 mm x 200 mm
±0.5 mm
±1 mm
0.1/0.01 mm
90° ± 10°
Direct sunlight > 20°
RS232
±10V
24 V, 300 mA
24 V, 3 W
600 measures/sec (all channels)
8 kg
265 / 309 / 314
P S M-2 0 0
R ec e iv e r
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13.2 PSM- 200 Transmitter
Power supply
Supply current
Operating temperature
Laser wave length
Output aperture
Laser spot size at 100 m
Sweep rate
Sweep nonlinearity at 100 m
Laser class (EN 60825)
Weight
Transm. dimensions (max. H W L)
Mounting
10.5 to 15 VDC
(reverse voltage protection as option)
- point laser
120 mA (max.)
- sweep laser
200 mA (max.)
-20 ... +50°C
670 nm ±10 nm
18 mm
∼ 10 mm
20 / sec. (10x2 crossings)
< 1 mm
2 (Eye safe)
2.0 kg
84 / 84 / 200
3 x M6 (14), 190 mm / 64 mm
diam 26
mm
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13.3 Battery units
Battery unit 1
Power supply
Charging
Weight
12 V / 6.5 Ah
12 V / 800 mA
4.4 kg
120
240
120
100
Battery unit 2
Power supply
Charging
Weight
12 V / 1 Ah
12 V / 100 mA
1 kg
95
160
95
45
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14 Mechanical parts
14.1 PSM-200 Transmitter base
The transmitter base is meant for the directing of the laser beam to the receiver. The base
allows the directing of the transmitter in horizontal and vertical direction, levelling the transmitter
and height adjustment.
7
7
210
105
142
104
The base plate of the transmitter.
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14.2 PSM-200 Receiver bottom
Clearance area
Ventilation
2x
6
110
253
190
4 x M8
150
112
M16
37
66
70
105
140
144
The bottom of the receiver with the fastening screws and the ventilation valve area.
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14.3 PSM-200 Receiver face
265
135
PSM-200
Receiver
30
62
315
The front view of the receiver
Receiver
PSM-200
The protection cover for the receiver optical surface
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14.4 Receiver connecting box
4x
100
6
120
102
102
120
The connecting box for the receiver signals.
Connectors:
Receiver unit
Battery unit
RS 232 for PC (9 pin female)
Inlet for the I/O-signals 10 mm
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14.5 Receiver cable
Sign Mil Twist Colour
conn. pair
Conn.
Box
Signal name
V in
A 4
V gnd B 4
Shield
Red
Blue
0
1
2
Shield
Supply voltage in
Supply ground
U1 + D 2
U1 gnd E 2
Green
Yellow
5
6
X-axis signal
X-axis ground
U2 + F 1
U2 gnd G 1
White
Brown
7
8
Y-axis signal
Y-axis ground
RxD
H 5
5
Black
Violet
9
10
RS232 receive data
RS232 ground
TxD
K 6
6
Grey/Pink 11
Blue/Red 12
RS232 transmit data
RS232 ground
It is suggested that all ground lines will be connected together to the supply ground.
Note: V gnd and signal ground are not connected together inside the receiver.
Note: RS gnd uses the same ground line as U1 and U2. For correct operation, connect these
together and also to computer's ground.
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Sign Mil Twist Colour
conn. pair
Conn. Signal name
Box
DO1 - L 7 White/Green
DO1 + 7 Green/Brown
13
14
X middle area
DO2 - M 8 White/Yellow
DO2 + 8 Yellow/Brown
15
16
Y middle area
DO3 - N 9 White/Grey 17
DO3 +
X left (right) area
DO4 - P 9 Grey/Brown 18
DO4 +
X right (left) area
DO5 - R 10 White/Pink 19
DO5 +
Y upper (lower) area
DO6 - S 10 Pink/Brown 20
DO6 +
Y lower (upper) area
T 11 White/Blue 21
DO common ++++++
J 11 Brown/Blue 22
DI ground ---------
DI1 + U 12 White/Red 23
DI1 -
Sweep direction
DI2 + V 12 Red/Brown 24
DI2 -
Filter
DI3 + C 3 Grey
DI3 -
Sweep selection
3
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Signals:
Supply voltage
11 - 30 VDC
X-axis signal
0 to 10 V, ±10 V, 4-20 mA
Y-axis signal
0 to 10 V, ±10 V, 4-20 mA
RxD / TxD
RS 232 C
DO 1-6
60VDC max. / switching voltage
300 mA max. / switching current
1000 mA max. / total simultaneous switching current
Polarity free
Lines equipped with recovering Fuses
DI 1-3
9 - 35 VDC
3W
Polarity
Lines equipped with recovering Fuses
Connector:
MS 3116 F 14-19 F
Cable type:
LiYCY(B) 12x2x0.25
Cable length:
3 m or 30 m
Note: When using the 30 m cable, the supply voltage must be over 12V
14.6 Transmitter cable
PSM-200
Cable
LiYCY 5*0.5
Connectors KPT06F12-3P
KPT06F10-6P
A - A White V in The supply voltage range is 10.5 VDC to 15 V DC
B - B Brown GND in
Supply ground
On
A
POWER
C
B
Off
PSM-200
Power unit
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15 Laser classification
The PSM-200 is classified in Finland to laser class 2 according to the international standard EN
60825.
Työministeriö/ Työsuojeluosasto, Tampere, Finland
Type approval decision Nr. 30/94
The national regulations in most countries usually require the equipment to be re-classified in
the target country.
The transmitter has in Finland the below-described label as a sign of the classification. The
labels have to be made in the target country according to the national regulations.
Label 1:
Label 2:
EN 60 825: 1991
Aallonpituus
675±10 nm
Pulssiteho
750 yW
Pulssinpituus
61 ys
Pulssintoistotaajuus
Wave length
Pulse power
Pulse length
8,2 kHz Pulse rate
Vaara-lasersäteilyä
Älä tuijota säteeseen
Luokan 2 laser
Caution-laser radiation
Do not stare into beam
Class 2 laser
Disposal: Do not dispose this product as unsorted municipal waste.
In the European Union all electrical and electronic products, batteries, and
accumulators must be taken to separate collection at the end of their working
life.
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16 Limited Warranty
The product has been thoroughly tested and inspected before shipment. All parts (excluding
accumulators) are warranted to be free of defects in material and workmanship for one (1) year
from the date of the shipment.
The Warranty is always subject to the concurrence of the following three conditions:
(1) No claims under this Warranty will be honoured unless notice of a defect affecting any
specific item of Products is given to Noptel within the warranty period; and
(2) Any specific item of Products considered by the Buyer to be covered by this Warranty shall
be returned, at the Buyer’s cost, to Noptel Oy together with a copy of sale document showing
the date of purchase within one (1) month from the day of notice as set out above; and
(3) Noptel Oy shall find such an item of Product returned to Noptel Oy as set forth above
defective due to faulty workmanship or use of defective materials.
If Noptel Oy finds the Product to be defective, Noptel Oy’s liability under this Warranty is limited
to repair or replacement of the Product free of charge, Ex Works (EXW), Oulu, Finland, or
credit for an amount equal to the invoiced value of the defective Product.
When sensing a Product for the repair, please attach an explanation of the defect to the
shipment in order to expedite and facilitate service.
This Warranty excludes all consequential damages.
The Warranty will terminate, if an unauthorised person opens the units during the warranty
period.
This Warranty does not cover defects caused by misuse or improper handling, installation or
maintenance of the products.
Always follow the rules and hints for the proper handling and maintenance given by the
manufacturer. The units contain no user serviceable parts. Manufacturer or dealer is not liable
for damages caused by erroneous measurements or inadequate treatment.
Noptel Oy, Teknologiantie 2, 90590 Oulu, Finland
Tel. +358-40-181 4351,
Fax. +358-8-556 4101,
Email info@noptel.fi
Technical support: see our internet pages:
http://www.noptel.fi/
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