Delta Elektronika SM 30-200 User manual

SM 6000 - series •SM 15-400
•SM 30-200
•SM 45-140
•SM 60-100
•SM 70-90
•SM 120-50
•SM 300-20
Elso Philips Service
Jilemnického 2; 911 01 Trenèín
tel: + 21 32 6582 10, 7 31690
fax: + 21 32 6582592
email: [email protected]
web: www.elso.sk

SM6000 DELTA ELEKTRONIKA BV
July 2003, rev. May 2008 SAFETY INSTRUCTIONS Page 2 - 1
Safety Instructions
Caution
The following safety precautions must be observed during all phases of operation, service and
repair of this equipment. Failure to comply with the safety precautions or warnings in this document
violates safety standards of design, manufacture and intended use of this equipment and may
impair the built-in protections within.
Delta Elektronika shall not be liable for user’s failure to comply with these requirements.
Installation Category
The Delta Elektronika power supplies have been evaluated to installation category II.(Over voltage
category II)
Grounding
This product is a safety Class 1 instrument. To minimize shock hazard, the instrument chassis
must be connected to the AC Power Supply mains through a tree or four conductor power cable for
resp. a single or three phase unit, with the ground wire firmly connected to an electrical ground
(safety ground) at the power outlet.
For instruments designed to be hard-wired to supply mains, the protective earth terminal must be
connected to the safety electrical ground before another connection is made. Any interruption of
the protective ground conductor, or disconnection of the protective earth terminal will cause a
potential shock hazard that might cause personal injury.
Fuses
Fuses must be changed by authorized Delta Elektronika service personnel only, for continued
protection against risk of fire.
Input Ratings
Do not use an AC Supply which exceeds the input voltage and frequency rating of this instrument.
The input voltage and frequency rating of the Delta Elektronika power supply series are stated in
de accompanying datasheet.
Live Circuits
Operating personnel must not remove the instrument cover. No internal adjustment or component
replacement is allowed by non Delta Elektronika qualified personnel. Never replace components
with the power cable connected. To avoid injuries, always disconnect power, discharge circuits and
remove external voltage sources before touching components.
Parts Substitutions & Modifications
Parts substitutions and modifications are allowed by authorized Delta Elektronika service personnel
only. For repairs or modifications the unit must be returned to a Delta Elektronika service facility.

DELTA ELEKTRONIKA BV SM6000
Page 2 - 2 SAFETY INSTRUCTIONS July 2003, rev. May 2008
Environmental Conditions
The Delta Elektronika power supplies safety approval applies to the following operating conditions:
•Indoor use
•Ambient temperature : −20 to 50 °C
•Maximum relative humidity : 95%, non condensing, up to 40 °C
: 75%, non condensing, up to 50 °C
•Altitude: up to 2000 m
•Pollution degree 2
Caution risk of electrical Shock
!Instruction manual symbol. The instrument will be marked with this symbol when it is
necessary for the user to refer to the instruction manual
Protective ground conductor terminal
oOff (supply)
IOn (Supply)
WEEE
(Waste Electrical & Electronic Equipment)
Correct Disposal of this Product
Applicable in the European Union.
This marking shown on the product, its packing or its literature indicates that
it should not be disposed with other wastes at the end of its working life, but
should be collected separately to recycle it responsibly to promote the
sustainable reuse of material resources.

SM6000 DELTA ELEKTRONIKA BV
July 2003, rev. May 2008 DESCRIPTIONS Page 3 - 1
fig. 3 - 1
Output ranges. Every point in
hatched area can be used
SM 300-20
SM 120-50
SM 30-200
SM 45-140
SM 70-90
SM 60-100
SM 15-400
DESCRIPTIONS
1) OUTPUT
The SM15-400, SM30-200, SM45-140, SM60-100, SM70-90, SM120-50
and SM300-20 can either be used as a constant voltage source with current
limiting or as a constant current source with voltage limiting.
The change of mode occurs sharply at the crossing of the voltage and current
settings. Figure 3 - 1 shows the output ranges.
°DISPLAY CV/CC SETTINGS FUNCTION
The settings of the voltage and current control (also when programmed) can
be observed on the front panel meters by pressing the Display CV/CC Set-
tings button. This allows the current limit to be set when operating in the CV
mode without shorting the output terminals, and the voltage limit to be set
when operating in the CC mode without opening the load leads.
°OVERLOAD PROTECTION
The power supply is fully protected against all overload conditions, including
short circuit.
2) INPUT VOLTAGE
The power supplies have a wide input voltage range.
°The unit needs a 3 phase input voltage, but no neutral connection is re-
quired.
°The unit only operates on three phases. In case of Phase Loss, the
ACF-status (AC Fail) will be high, the ACF-LED will light and the output
shuts down after a few seconds.
3) INPUT CURRENT
The unit has active power factor correction (PFC). The input current will
therefore almost be a sine wave. This means that the RMS-value and the
harmonic distortion of the input current will be relatively low.
The peak inrush current is electronically limited. Switching on and off repeat-
edly will not result in excessive currents like with NTC circuits.
4) STANDBY INPUT POWER
The unit consumes very little power when in standby. This makes it possible
to leave the input power on when the output is disabled using the Output
On/Off function (push button on front panel) or the Remote ShutDown input
(pin 5 on connector CON E on the rear panel).
5) EFFICIENCY
The efficiency is very high and constant over a wide output current range.
High efficiency means low power loss and low heat generation.
6) CV REGULATION
The CV-load regulation should be measured directly on the output terminals
because a few cm of cable can have a voltage drop of several mV (at high
current!).
7) CC REGULATION
For accurate CC-load regulation, do not use external voltage sensing.
A voltage between S- and minus output will create an error of about 0.04 %
per volt.
A voltage between S+ and + is not critical.The CC-stability is also affected by
external voltage sensing.
Note: when the unit operates in CC-mode, the DCF-LED will be on. When
the unit is in CC-mode most of the time, it is possible to disable the LED with
DIP switch 3 on SW1 (rear panel).
8) RIPPLE & NOISE
The output ripple is very low with almost no spikes. The ripple voltage has to
be measured directly on the output terminals using a probe with very short
connections (to avoid pick up of magnetic fields) (see fig. 3 - 2 and fig. 3 - 3).
At low temperatures like -20°C the ripple increases. By using high quality
electrolytic capacitors the increase is relatively low.
fig. 3 - 2
Measuring ripple voltage
WRONG !
fig. 3 - 3
Measuring ripple voltage
RIGHT !

DELTA ELEKTRONIKA BV SM6000
Page 3 - 2 DESCRIPTIONS July 2003, rev. May 2008
fig. 3 - 4
Programming inputs (internal circuit)
9) ANALOG PROGRAMMING
The output voltage and current can be programmed by an external analog
voltage. This programming is very accurate and linear. The levels are all
standardized on 5 V.
The inputs have a protection circuit formed by a series resistor and a
parallel zener (see fig. 3 - 4). The capacitor limits the speed to a safe
value. Note that the analog inputs (and outputs) are not floating, but the
common is connected to the negative output terminal. Wrong con-
nection of Ø can cause earth loops which can trip the fuse. After removing
the fault, the fuse will reset (PTC-fuse). For isolated programming see
next paragraph 10).
10) ISOLATED ANALOG PROGRAMMING
To prevent earth loops which can cause programming errors, use an iso-
lated programming source. If this is not possible, use the optional ISO
AMP CARD (δ-product) which can be built inside the unit.
With the ISO AMP CARD earth loops between the unit and the program-
ming source are prevented.
11) Ethernet / IEEE488 / RS232 PROGRAMMING
The Delta Elektronika PSC-ETH, PSC-488 and the PSC-232 controllers
can be built inside the unit.
Voltage and current can easily be programmed and read back. Also all
the status outputs can be read by the computer.
12) MONITORING OUTPUTS
The monitor outputs give a voltage 0 - 5 V proportional to the output cur-
rent or voltage. The output current can easily be measured using the
I-monitor (see fig. 3 - 6). The monitor outputs are buffered with op-amp’s
and protected with series resistors and parallel zeners (see fig. 3 - 7). The
table in fig. 3 - 5 shows the impedance levels of the monitoring outputs.
For using Imon on a pulsating load, see paragraph 20) of this chapter.
13) +12 V ON PROGRAMMING CONNECTOR
The +12 V on the programming connector can be used to supply external
circuits. The output is current limited, but should not be overloaded. The
fuse F27_3 on P598 could blow. The fuse F27_3 also protects the internal
circuit, in case an external high voltage is applied by accident. Note: this
fuse is a special 600 V type, always replace with the same type.
14) STATUS OUTPUTS
All the status outputs are logic outputs. Logic "0" means the output is 0 V,
logic "1" means the output is 5 V (Ro = 500 Ohm). This makes it possible
to drive directly: an opto-coupler, a TTL gate or a CMOS gate.
The Limit Status or LIM-status is "1" in case the output voltage or current
reaches the limit setting. Which limit circuit is active can be seen on the
front panel LED’s.
The Over Temperature Status or OT status is "1" in case of an over tem-
perature, the OT LED will be on and the output shuts down. As a
pre-warning the OT LED starts to blink when the unit runs hot but the situ-
ation of over temperature is not reached yet. The status will still be low
when the LED is blinking.
fig. 3 - 5
Connections ANALOG PROG. CONNECTOR
pin Description, see par.12)...17) for details
1Ø, return of reference, prog. inputs and
monitor outputs (Ro = 1.2 Ohm).
2current monitor output 0 - 5 V
(Ro = 1.2 Ohm, Io max = 4 mA)
3current programming input (0 - 5 V),
Ri = 8 MOhm
4CC status output, logic 1 = CC mode
(5 V / 500 Ohm)
5Remote ShutDown (4 - 12 V),
Ri = 5 kOhm
6PSOL status output, logic 1 = PSOL
(5 V / 500 Ohm)
7+12 V output
(Ro = 3 Ohm, Io max = 0.2 A)
8Ø, return of status outputs, +12 V
and Remote ShutDown
9reference voltage 5.1 V
(Ro = 1.2 Ohm, Io max = 4 mA)
10 voltage monitor output 0 - 5 V
Ro = 1.2 Ohm, Io max = 4 mA)
11 voltage programming input (0 - 5 V)
Ri = 8 MOhm
12 OT - status output, logic 1 = OT
(5 V / 500 Ohm)
13 LIM - status output, logic 1 = LIM
(5 V / 500 Ohm)
14 DCF - status output, logic 1 = DCF
(5 V / 500 Ohm)
15 ACF - status output, logic 1 = ACF
(5 V / 500 Ohm)
fig. 3 - 6
External meters
using monitor outputs
fig. 3 - 7
Buffered monitor outputs

SM6000 DELTA ELEKTRONIKA BV
July 2003, rev. May 2008 DESCRIPTIONS Page 3 - 3
The Current Control Status or CC-status output is "1" when the unit is in
CC-mode.
The Power Sink OverLoad Status or PSOL-status output is "1" when the optional
Power Sink is overloaded or overheated.
The AC-Fail Status or ACF-status output is "1" in case of Phase Loss or when the
input voltage is below 340 V.
The DC-Fail Status or DCF-status output is "1" when the output voltage is either
5% below or above the set point.
When the unit is in CC-mode, DCF will always be "1", see previous paragraph 7).
15) STATUS RELAY OUTPUTS
The power supply has 2 status relay outputs, with each a change-over contact.
They are connected to connector CON D. The pins 1,2,3 are connected to the
DCF-relay and pins 4,5,6 to the ACF-relay (see fig. 3 - 10).
16) FUNCTION SWITCHES ON SW1
In the following table the functions of the DIP switches 1-4 of switch SW1 (rear
side) are explained:
fig. 3 - 8 Location of output terminals and analog prog. connector on rear panel
Switch no. ON position OFF position Default Setting
SW 1 - 1 Programming via 15pole connec-
tor CON E (analog).
Optional programming with e.g.
PSC-232, PSC-488, ISO AMP CARD
ON (up)
SW 1 - 2 ‘Output On’ after mains on ‘Output Off’ after mains on OFF (down)
SW 1 - 3 DCF LED enabled DCF LED disabled (DCF status and
DCF relay are still enabled)
ON (up)
SW 1 - 4 Parallel Master / Slave operation Series Master / Slave operation ON (up)
CON A Interlock Connector
CON B Master connector for Master / Slave operation (output)
CON C Slave connector for Master / Slave operation (input)
CON D Relay Outputs, contacts 1 - 6
CON E Analog Programming Connector
CON F PSC-232, from PC or previous PSC (optional)
CON G PSC-232, to next PSC (optional)
CON H PSC-488 (optional) or
ISO AMP CARD (optional)
SW 1 Various settings, see paragraph 16)
SW 2 Settings for PSC-488 and PSC-232 (optional)
fig. 3 - 9 Connectors and switches on the rear panel
fig. 3 - 10
Status relay outputs on CON D.
This situation gives the relay
positions during fault condition.

DELTA ELEKTRONIKA BV SM6000
Page 3 - 4 DESCRIPTIONS July 2003, rev. May 2008
17) REMOTE SHUTDOWN (RSD)
A voltage of +4 V...+12 V on the Remote ShutDown input on the
programming connector CON E will switch off the output of the unit.
It is also possible to use a relay contact or a switch to shut the unit
down (see fig. 3 - 11).
In standby mode the power supply consumes very little power.
18) INTERLOCK
The Interlock connector (CON A, rear panel) has 2 inputs which
have to be connected together to turn on the output of the unit.
As soon as the link between the 2 inputs of the Interlock connector
is disrupted, the output of the unit shuts down.
It can be used in combination with a cabinet door contact (safety
precaution) or as an emergency break to stop a motor which is
powered by the unit.
In case the link is disrupted the RSD LED will light. In contrast with
Remote ShutDown, also the DCF LED will be on, the DCF status
will be high and the relay contact will change.
Once the inputs are connected again, the output will be on.
No voltage may be applied to the pins in the Interlock connector.
19) PROGRAMMING SPEED
The rise and fall time is measured with a step waveform at the CV
prog. input. Programming from a low to a high output voltage is
nearly load independent, but programming down to a low voltage
takes more time on lighter loads. This is caused by the output ca-
pacitors, which can only be discharged by the load because the
power supply cannot sink current. With the Power Sink option,
also the programming down speed is nearly load independent.
When having a unit with a fast programming option, the rise and
fall time is 5 to 25 times faster (see datasheet). The programming
source must be floating or otherwise an ISO AMP CARD must be
used, a non-floating source will result in slope distortion.
When using fast programming it is generally not recommended to
use remote sensing or serial / parallel operation. Consult factory for
advice. Note that the output ripple is higher.
20) PULSATING LOAD
To avoid overheating the output capacitors, the AC component of
the load current should be limited (see fig. 3 - 12).
One method of decreasing the AC current through the output ca-
pacitor is by using a large external electrolytic capacitor in parallel
with the load. Care must be taken so that the capacitor in combina-
tion with the lead inductance will not form a series resonant circuit!
When using remote sensing on a pulsating load (for instance a
DC-motor), use a capacitor in series with a resistor over the load
(see fig. 3 - 13). Like this the AC-component caused by the pulsat-
ing of the load is filtered.
Note: in case of a pulsating load, the I monitor voltage will not ex-
actly match the output current. This is mainly caused by the current
through the output capacitors. Remote sensing will worsen this ef-
fect.
21) INSULATION
For safety the insulation of the separating components (transform-
ers) between input and output is tested at 3750 Vrms during 1 min-
ute. This is tested before assembly.
Warning! The 3750 Vrms cannot be tested afterwards on the
assembled unit because the insulation between the components
on the input side to the case (like the bridge rectifier) is specified at
2500 Vrms. Since the insulation output - case is low (only 600 V DC)
the insulation of the primary components to case will break down
when 3750 Vrms is applied between input and output (2500 Vrms +
600 VDC < 3750 Vrms) (see also fig. 3 - 14).
Note: when testing the insulation, take care to charge and dis-
charge the capacitors between input - case and output - case
slowly (e.g. in one second). This to prevent high peak currents,
which could destroy the power supply. Make sure to discharge the
capacitors completely before using it again.
fig. 3 - 11
Remote ShutDown using a relay contact
fig. 3 - 12
Pulsating load current
fig. 3 - 13
Remote sensing on a pulsating load
fig. 3 - 14
Insulation test voltages

SM6000 DELTA ELEKTRONIKA BV
July 2003, rev. May 2008 DESCRIPTIONS Page 3 - 5
22) RFI SUPPRESSION
Both the input and output have RFI filters, resulting in very low
conducted RFI to the line and load. Due to the output filter the
output voltage is very clean, having almost no spikes.
23) OPERATING TEMP
At full power the operating temperature range is –20 to +50 °C.
From 50 to 60 °C the output current has to be derated linearly to
75 % at 60 °C (see fig. 3 - 15). These temperatures hold for nor-
mal use, i.e. the ventilation openings on the left and right side
must be free.
24) THERMAL PROTECTION
A thermal switch shuts down the output in case of insufficient
cooling.The OT status will be high. After cooling down the unit
will start working again.
The OT-LED on the front panel will be on and the OT-status sig-
nal will be "1" in case of a tripped thermal protection.
As a pre-warning the OT-LED blinks (status will still be low), this
will start before the power supply shuts down.
25) HOLD - UP TIME
The hold - up time depends on the load and the output voltage.
A lighter load or a lower output voltage results in a longer hold -
up time (see fig. 3 - 16).
26) TURN ON DELAY
The output voltage is available about 0.2 sec after mains switch
on.
27) INRUSH CURRENT
The inrush current is electronically limited.
Repeatedly switching on and off does not change the maximum
peak current.
Switching on and off at a fast rate can overheat the inrush cur-
rent limiter. With the result that the unit does not start anymore.
After cooling down (mains switched off) it will be OK again.
28) PHASE LOSS
Phase loss means that not all three phases are available.
The ACF-status will be high, the ACF LED will light and the
output of the unit will shutdown after a few seconds.
29) REMOTE SENSING
The voltage at the load can be kept constant by remote sensing.
This feature is not recommended for normal use but only when
the load voltage is not allowed to vary a few millivolts. Always
use a shielded cable for sensing.
In order to compensate for the voltage drop across the load
leads, the unit will have to supply a higher voltage (see fig. 3 -
17):
Uout = (voltage drop across each lead) + (voltage across the load).
The voltage limit reads the voltage directly at the output termi-
nals. The setting for the limit must therefore be increased by the
total voltage drop across the load leads.
The voltage display on the front panel and the voltage monitor
output on CON E are connected to the sense leads and there-
fore read the voltage across the load and not the voltage on the
output terminals.
The sense leads are protected against accidental interrup-
tion. The maximum voltage between the output terminals and
the sense inputs is limited at 2.5 V.
For sensing on a pulsating load see paragraph 20) of this
chapter.
fig. 3 - 15
Operating temperature ranges
fig. 3 - 16
Hold-up time vs Vout with Iout as a parameter
fig. 3 - 17
Remote sensing, voltage drop in load leads sub-
tracts from max. output

DELTA ELEKTRONIKA BV SM6000
Page 3 - 6 DESCRIPTIONS July 2003, rev. May 2008
30) SERIES OPERATION
Series operation is allowed up to 600 V total voltage. The power supplies can
be connected in series without special precautions.
For easier control, Master / Slave operation is recommended (see fig. 3- 18).
By using the Master / Slave series feature a dual tracking power supply can
be made with one unit as master and one as slave.
For series operation in combination with Power Sink option, all units must
have a Power Sink built inside otherwise no power can be absorbed.
31) PARALLEL OPERATION
Paralleling of the units has no limitations. The power supplies can be con-
nected in parallel without special precautions. For easier control, Master /
Slave operation is recommended (see fig. 3- 18 and fig. 3 - 19).
Normal parallel operation of Fast Programming units can give problems,
each combination has to be tested first, in combination with the load !
For parallel operation in combination with Power Sink option, only one unit
can have a Power Sink. Refer to Power Sink manual for details and
restrictions.
32) MASTER / SLAVE OPERATION
The Master / Slave feature makes it possible to use the power supplies as
building blocks to form one large unit (see fig. 3 - 19).
Mixed parallel - series operation is also possible, to a maximum of 600 V.
The resulting combination of units behaves like one power supply and can be
manually controlled or programmed on the master. Figure 3 - 20 shows a
computer controlled Master / Slave parallel combination.
Connect the different units with standard RJ45 cables (see fig. 3 - 21), using
CON B and CON C on the rear side. With DIP switch 4 of switch SW1 the Par-
allel or Series mode can be selected.
The slaves will follow the master. The result is true current or voltage shar-
ing in the parallel or series mode respectively.
Note: Master / Slave parallel operation is not recommended for more
than 3 units or in combination with Fast Programming option.
Consult factory for a solution.
fig. 3 - 18
Master / Slave series operation
fig. 3 - 19
Master / Slave parallel operation
fig. 3 - 20
The Master / Slave combination can also
be programmed with the interfaces
PSC-488 or the PSC-232
fig 3 - 21
Use standard UTP cables (RJ45) for Master / Slave operation

SM6000 DELTA ELEKTRONIKA BV
July 2003, rev. May 2008 DESCRIPTIONS Page 3 - 7
33) VOLTAGE AND CURRENT LIMIT
The Voltage Limit will protect your circuit from unwanted high voltages. A high
output voltage could be caused by accidental interruption of leads, accidentally
turning up the voltage potmeter, a programming error or a defect in the power
supply. The Voltage Limit circuit uses a separate voltage divider connected di-
rectly to the output terminals.
The Current Limit protects your circuit from unwanted high currents.
The Voltage and Current Limits maintain the output to a safe preset value.
They do not trip, so no resetting is needed after a fault. It can be very handy to
have hardware limits when the power supply is programmed.
The limits can easily be set by pressing the DISPLAY LIMITS button and ad-
justing the potentiometers with a screwdriver. The LED’s next to the potmeters
indicate the activity of each limit, also the LIM-status output will be "1".
34) POTENTIOMETERS AND ENCODERS
°Standard: -CV and CC potentiometers with knobs at front panel,
Voltage Limit and Current Limit potentiometers with
screwdriver adjustment at the front panel.
°Option P001: -Screwdriver adjustment for CV, CC, Voltage Limit and
Current Limit at the front panel (see fig. 3 - 22).
°Option P220: -Digital encoders for CV and CC setting with a very long
life time and intelligent functions (e.g. Keylock).
Setting of CV-limit and CC-limit with screwdriver adjust-
ment analog potentiometers at the front panel.
35) COOLING
Two low noise blowers cool the unit. The speed of the fans depend on the tem-
perature of the internal heatsink. Normally at 50 °C ambient and full load the
fan will not work at full speed.
A special feature is that the fans blow through a tunnel where the heatsinks are
situated, the delicate control circuitry is separated and will not be in the airflow
path (see fig. 3 - 23).
Because the air enters at the left and exits at the right side, it is possible to stack
the power supplies, no distance between the units is required. Only the ventila-
tion openings at the left and right side should be free.
For long life the temperature of the air entering on the left side, should be be-
low 35 °C under normal conditions. Under extreme conditions it should be be-
low 50 °C.
Note: The control circuit makes the fan start in a pulsating mode, during which
period it can produce a high pitched sound. This is normal.
36) DIMENSIONS
fig. 3 - 22
Screwdriver adjustment at front panel
fig. 3 - 23
The two fans blow through the tunnels,
where the heatsinks are situated

DELTA ELEKTRONIKA BV SM6000
Page 4 - 1 OPERATING MAINTENANCE TROUBLE SHOOTING CALIBRATING July 2003, rev. May 2008
OPERATING MANUAL
1) OPERATING THE UNIT FOR THE FIRST TIME
•Check there is no condensation on the unit. If there is, allow some
time to dry.
•Check there is a link between + and S+ and between – and S– on
the SENSE BLOCK (on rear panel).
•Check there is a link between the inputs of the Interlock (CON A,
rear panel).
•Set the CV and CC potentiometers to minimum (fully anti clock-
wise). For units with Option P220, this is not needed. These units
are set to start at 0 V - 0 A when operated for the first time.
•For cable diameters and mounting torque (see table 4 - 1).
•With high output current make sure to use low resistive con-
nections between the power supply and the load:
- Mount the cable lugs directly on the tinned output strips
followed by a washer, a split washer and a nut (see fig. 4 - 1).
Always in this order!
- Never place washers between the lugs and the strips
because this can result in excessive heat!
- Only use nuts and washers supplied with the unit.
•Switch on unit.
•Disable the Keylock function, see next paragraph 2) .
•Check the unit is not in Remote CV or Remote CC (LED’s for this
function should be off). Press the REMOTE/LOCAL button until
both LED’s are off.
•Turn on the output by pressing the OUTPUT ON/OFF button.
•Turn both the CV and CC potentiometer a few turns clockwise.
A voltage should now be present on the output.
•By pressing the DISPLAY CV/CC SETTING button the meters
will show the setting of the CV and CC potentiometer.
•By pressing the DISPLAY LIMITS button the voltmeter will show
the setting of the CV-limit and the CC-limit potentiometer.
•Check that the cooling of the unit is not obstructed.
2) KEYLOCK
•If the function KEYLOCK is activated, it is no longer possible to
operate the REMOTE/LOCAL button and the OUTPUT ON/OFF
button. This function can be useful to protect the output from acci-
dental shutdown. The function KEYLOCK does not influence the
operating of the CV, CC, CV-limit and CC-limit potentiometers.
•Units with digital encoders:
For units with Option P220 also the digital encoders for CV and
CC are disabled with the Keylock function. This means settings
of the voltage and current do not change when the encoders are
operated. It is still possible to operate the analog CV-limit and
CC-limit potentiometers.
•Activate Keylock:
Pressing the buttons DISPLAY SETTINGS and DISPLAY
LIMITS at the same time for more than 3 seconds, activates the
function KEYLOCK. The moment this function is activated, the
LED’s for REMOTE CV / CC and for OUTPUT ON will blink a few
times.
•Disable Keylock:
Pressing the same buttons again for 3 seconds, disables the
Keylock function. The LED’s for REMOTE CV / CC and for OUT-
PUT ON will blink again to indicate the new setting.
3) ANALOG PROGRAMMING
•Set DIP switch 1 of SW1 in position ON to select CON E for pro-
gramming.
•Disable Keylock.
•Set the unit in REMOTE CV for voltage programming and/or in
REMOTE CC for current programming.
Use the REMOTE/LOCAL button and push this button several
times until the right setting is activated.
Note that pushing the REMOTE/LOCAL button will shutdown the
output to avoid accidental damage to the load.
fig. 4 - 1
Low resistive cable connection by mounting the
cables directly on the tinned output strips
fig. 4 - 2
Programming by voltage:
left voltage -, right current programming
fig. 4 - 3
Programming by current
left voltage -, right current programming
Unit
SM 15-400 SM 30-200 SM 45-140 SM 60-100 SM 70-90 SM 120-50 SM 300-20
Input cables
[mm2]
2.5 2.5 2.5 2.5 2.5 2.5 2.5
Torque [Nm] 0.6 0.6 0.6 0.6 0.6 0.6 0.6
Output cables
[mm2]
120 50 25 16 16 6 4
Bolts M12 M10 M10 M10 M10 M8 M8
Torque [Nm] 80 40 40 40 40 20 20
table 4 - 1
Cable diameters and torque

SM6000 DELTA ELEKTRONIKA BV
July 2003, rev. May 2008 OPERATING MAINTENANCE TROUBLE SHOOTING CALIBRATING Page 4 - 2
•Connect the programming voltage source(s) (0 - 5 V) to the
analog programming connector CON E on the rear panel (see
fig. 4 - 2 and fig. 4 - 3). Always use a shielded cable (max. 30
meter) for programming.
•Turn the output on again with the OUTPUT ON/OFF button.
•If only the voltage is programmed, the maximum current can
still be set with the CC knob on the front panel and vice versa.
If this is not desirable the unit can be ordered with Option P001
or Option P220 in order to have a fixed setting for the CV and
the CC knob on the front panel, see also par. 34) in previous
chapter "Descriptions".
•To avoid hum or noise, the programming cable may have to
be twisted in some cases.
•To program the unit by current instead of voltage, simply use a
parallel resistor as a current to voltage converter.
•Pressing the DISPLAY SETTINGS button will show the pro-
grammed values for CV and CC.
•CAUTION: The analog inputs are not isolated from the output.
The Ø of the prog. input (pin 1) is internally connected to the
S–, the S– is connected to the negative output. To protect the
internal wiring a 650 mA self-resetting fuse is connected in se-
ries (F27_1 on P598). To avoid earth loops, use an isolated
programming source. If this is not possible, see nest para-
graph 4) for using the optional ISO AMP CARD.
4) ANALOG PROGRAMMING WITH ISO AMP CARD
•For programming via the ISO AMP CARD, set DIP switch 1 on
SW1 in the position OFF.
•When the ISO AMP CARD is built inside the unit, CON E has
been removed. Use CON H instead. The pinning of CON H is
equal to the pinning of CON E .
•For further operating instructions, see previous paragraph 3).
5) IEEE488 / RS232 PROGRAMMING
•Set DIP switch 1 on SW1 in position OFF for programming
with the PSC-488 using CON H or programming with the
PSC-232 using CON F and G. With DIP switch 1 in this
position, the signals Vprog (pin 11) and Iprog (pin 3) are
disabled on CON E. All the other signals can still be used.
•Set the unit in REMOTE CV for voltage programming and/or in
REMOTE CC for current programming using the SCPI com-
mands (see manual PSC) or using the REMOTE/LOCAL but-
ton on the unit. Push this button several times until the right
setting is activated. Setting the unit in REMOTE or LOCAL will
cause the output to shutdown to avoid accidental damage to
the load. Turn it on again using the SCPI command or with the
OUTPUT ON/OFF button.
•Set DIP switch 1 on SW1 in position ON to enable CON E
again for analog programming.
In this position voltage and current programming on CON F
and H is disabled. The other functions and signals can still be
programmed and read back.
6) MONITORING OUTPUTS
•The 5 V level is compatible with most interfaces.
•The monitoring outputs can drive a meter directly
(see fig. 4 - 4).
7) STATUS OUTPUTS
•The status outputs have a separate Ø connection (pin 8) to
avoid unwanted offsets in the programming. This pin is pro-
tected with a 650 mA self resetting fuse (F27_2 on P598).
8) REMOTE SENSING
•Remove the links on the SENSE BLOCK (on rear panel) and
connect sense leads (thin shielded measuring wires) to S+
and S–. See fig 4 - 5 and fig. 4 - 6.
•With remote sensing the voltage on the load can be kept con-
stant. The voltage drop in the load leads will be compensated.
This feature is not recommended for normal use, because it
can easily give problems.
fig. 4 - 4
Remote control
fig. 4 - 5
Local sensing
fig. 4 - 6
Remote sensing with shielded wires
fig. 4 - 7
Remote sensing, voltage drop in load leads sub-
tracts from max. output

DELTA ELEKTRONIKA BV SM6000
Page 4 - 3 OPERATING MAINTENANCE TROUBLE SHOOTING CALIBRATING July 2003, rev. May 2008
•Max. 2 V per load lead can be compensated.
Note that the voltage drop in the leads decreases the max.
output voltage rating. In fig. 4 - 7 it can be seen that on a 15
V power supply only 11 V will be available on the load when
2x 2 V compensation is used.
•In order to prevent interference it is advisable to twist the
sense leads. To minimize the inductance in the load leads
keep the leads close to each other. The inductance of the
loads leads could give a problem with pulsating loads. In
this case a large electrolytic capacitor (Cd) in series with a
damping resistor (Rd) both in parallel with the load will help
(see fig. 4 - 6). Check that the capacitor Cd in combination
with the load leads and resistor Rd forms a well damped cir-
cuit.
•Since the voltmeter is internally connected to the sensing
terminals, it will automatically indicate the voltage on the
load. Note that the voltage measured on the load will be
lower than on the output terminals.
•The Over Voltage Limit measures the voltage on the output
terminals, so the OVL setting should be increased by the
total voltage drop in the load leads.
9) BATTERY CHARGER
•The CV / CC regulated power supplies are ideal battery
chargers. Once the output is set at the correct voltage the
battery will charge constantly without overcharging.
This can be useful for emergency power systems.
•Protective measures
Use a CIRCUIT BREAKER in series in order to protect the
power supply from accidental reverse connection (see
fig. 4 - 8).The circuit breaker should have a DC voltage rat-
ing twice the battery voltage. Use the very fast type (Z), a
type meant for protecting semiconductors (see table 4 - 2).
The unit has a reverse diode in parallel with the output, this
diode and the wiring cannot withstand the thousands of
amperes supplied by a wrongly connected battery.
10) REMOTE SHUTDOWN
•The Remote ShutDown can be operated on CON E by a
voltage of +4 V...+12 V or by a relay contact between Vref
and Remote ShutDown (pin 9 and 5) (see fig. 4 - 9).
•When the unit is programmed with an optional PSC, a
software command can be used for Remote Shutdown.
•In the Remote ShutDown condition, the RSD LED will light.
The DCF LED, DCF status and the DCF relay will be off.
Important: If the link from the Interlock connector (CON A)
has been removed, the RSD LED will be on, but in this
condition also the DCF LED, the DCF status and the DCF
relay will be on.
11) MASTER / SLAVE SERIES OPERATION
•Connect output terminals and test system in normal
series operation. Ensure that all (output) power connec-
tions are reliable.
•The voltage drop in the connecting leads between the units
should be kept < 10 mV.
•Switch off all units. Connect units as shown in fig. 4 - 10.
To connect the slaves with the master via CON B and CON
C, use standard UTP cables (RJ45).
On all units put DIP switch 4 of SW1 in position OFF to set
the units in M/S series mode.
•After turning the units on again, the slaves will be in Remote
CV mode and the Keylock (see previous paragraph 2) is
activated. This is because the unit automatically detects
the presence of the RJ45 connector in CON C (if this cable
is connected to another unit).
If the RJ45 connector is removed from CON C when the
unit is turned on, the output will shutdown to avoid
accidental damage.
If the cable is inserted when the unit is turned on, the output
shuts down, the unit changes to Remote CV / CC, the Key-
lock will be activated and the output will turn back on.
Suggested circuit breakers for protection power supply
Model Type number
circuit breaker
Brand Remarks
SM15-400 2x HTI102 B 100 GE 4 poles parallel
SM30-200 HTI102 B 100 GE 2 poles parallel
SM45-140 HTI102 B 100 GE 2 poles parallel
extra parallel diode
on output needed
= OPTION 151
SM60-100 HTI101 B 100 GE
SM70-90 HTI101 B 100 GE
SM120-50 S281 UC-Z 50 ABB extra parallel diode
on output needed
= OPTION 152
SM300-20 S282 UC-Z 20 ABB 2 poles in series
extra parallel diodes
on output needed
= OPTION 153
table 4 - 2
Circuit breakers for protection.
fig. 4 - 8
Charging battery with a circuit breaker in series
fig. 4 - 9
Remote ShutDown with switch
fig. 4 - 10
Master / Slave series connection

SM6000 DELTA ELEKTRONIKA BV
July 2003, rev. May 2008 OPERATING MAINTENANCE TROUBLE SHOOTING CALIBRATING Page 4 - 4
If DIP switch 4 of SW1 is operated when the unit is
turned on, the output will shutdown to avoid accidental
damage.
•The max. number of slaves is only limited by the max.
total voltage of 600 V.
12) MASTER / SLAVE PARALLEL OPERATION
•Note: Master / Slave parallel is not recommended
for more than 3 units, consult factory for using
more than 3 power supplies in parallel.
•First connect output terminals and test system in
normal parallel operation. Ensure that all power
connections are reliable.
•Second, switch off all units. To connect the slaves with
the master via CON B and CON C, use standard RJ45
connectors according to fig. 4 - 11.
On all units put DIP switch 4 of SW1 in position ON to
set the units in M/S parallel mode. In this mode the
DCF LED, DCF relay and DCF status on the slaves are
disabled because the slaves are always in CC mode.
•After turning the units on again, the slaves will be in
Remote CC mode and the Keylock (see previous para-
graph 2) is activated. This is because the unit automat-
ically detects the presence of the RJ45 connector in
CON C (if this cable is connected to another unit).
If the RJ45 connector is removed from CON C when
the unit is turned on, the output will shutdown to avoid
accidental damage.
If the cable is inserted when the unit is turned on, the
output shuts down, the unit changes to Remote CV /
CC, the Keylock will be activated and the output will
turn back on.
If DIP switch 4 of SW1 is operated when the unit is
turned on, the output will shutdown to avoid accidental
damage.
•Stack the units to create a minimum distance between
the units. Keep the load close to the master.
Use copper strips (preferred) or short thick cables to
connect the units. Make sure the strips are mounted
with a minimum length to keep the voltage drop be-
tween a unit and the bus bar below 10 mV. Also keep
the strips close to each other to have a low inductance.
Not following these instructions can cause instability.
•The S- and S+ could be connected to the load if
desired, but this is not recommended because of the
complexity and possible instability.
13) PARALLEL OPERATION OF FAST
PROGRAMMING VERSIONS:
•Master / Slave operation is not recommended.
•Normal parallel operation can give problems, each
combination has to be tested first in combination with
the load.
14) MASTER / SLAVE MIXED SERIES /
PARALLEL OPERATION
•For complex combinations as mixed series - parallel,
always use a MASTER / SLAVE SERIES ADAPTER.
•See fig. 4 - 12 for an example of how to connect 2 units
in series in parallel with 2 units in series, controlled by 1
master.
•Set the programming mode with the knob Remote / Lo-
cal on the front panel. The serial slaves must be in Re-
mote CV- and CC-mode. The parallel slave must be in
Remote CC-mode and the CV-potmeter must be fully
opened.
•Note: A Master / Slave combination can always be
programmed, also with the IEEE488/RS232 controller
(PSC-488 / PSC-232 (both δ-products)).
fig. 4 - 11
Master / Slave parallel connections
fig. 4 - 12
Master / Slave mixed series - parallel connections

DELTA ELEKTRONIKA BV SM6000
Page 4 - 5 OPERATING MAINTENANCE TROUBLE SHOOTING CALIBRATING July 2003, rev. May 2008
OPERATING AND STORAGE CONDITIONS
1) TEMPERATURE
•The operating temperature range at full load is –20 to +50 °C.
But this temperature range only holds when the AIR-INTAKE and
AIR-OUTLET are unobstructed and the temperature of the
AIR-INTAKE is not higher than +50 °C.
•Please note: a lower temperature extends the life of the
power supply.
•When the power supply is mounted in a cabinet please note that
the temperature of the AIR-INTAKE should be kept low and avoid
a short circuit in the airflow i.e. the hot air leaving the AIR-OUTLET
entering the AIR-INTAKE again.
•The storage temperature range is –40 to +85 °C.
2) HUMIDITY
•During normal operation humidity will not harm the power supply,
provided the air is not aggressive. The heat normally produced in
the power supply will keep it dry.
•Condensation.
Avoid condensation inside the power supply, break-down could
be the result.
Condensation can occur during a period the power supply is
switched off (or operating at no load) and the ambient temperature
is increasing .
Always allow the power supply to dry before switching it on again.
3) GALVANIC INDUSTRY
•For using the power supplies in the galvanic industry it is strongly
recommended to take precautions against an aggressive environ-
ment.
•An aggressive environment with acid, salt, etc. can harm the elec-
tronic components. Sometimes even the copper tracks on the
printed circuit boards dissolve.
•To avoid problems, the power supplies should be mounted in a rel-
atively clean room, or mounted in a cabinet receiving clean air with
over pressure, or a cabinet with a heat exchanger.
MAINTENANCE
1) GENERAL
•The SM-series power supplies normally need no maintenance or
calibration. Only care must be taken that the cooling of the unit is
not obstructed.
2) COOLING FANS
•The built up of dust on the impeller of the fans and the heat sink
fins depends on the environment. Since the fans have
over-capacity dust will not present a problem very quickly.
•The internal construction of the power supply is such that no dust
will reach the sensitive control circuitry, only the heat sinks in a
tunnel will be cooled by forced air (see fig. 4 - 13)
•The thermal protection will shutdown the output in case of over-
heating, so no damage will be done to the power supply.
•It is advisable to inspect the fans and the heat sinks regularly.
fig. 4 - 13
The fans blow through an internal tunnel,
where the heatsinks are situated

SM6000 DELTA ELEKTRONIKA BV
July 2003, rev. May 2008 OPERATING MAINTENANCE TROUBLE SHOOTING CALIBRATING Page 4 - 6
TROUBLE SHOOTING
1) GENERAL
•In case you need assistance for repairing a unit, please contact
our engineers using the address "[e-mail]".
•In case you want us to repair the unit, please first fill out the
RMA-form before sending the unit to us. Adding a detailed fault
description will help us to repair the unit as soon as possible.
On our website www.DeltaPowerSupplies.com the RMA-form
can be found under 'Support'.
2) NO OUTPUT (manual control)
•Check the LED’s ‘Remote CV’ and ‘Remote CC’ on the front
panel, they should be off. Disable Keylock and press the RE-
MOTE/LOCAL switch to turn both LED’s off.
•The LED ‘Output On’ should be on. If this LED is off, disable Key-
lock and push the button ‘OUTPUT ON/OFF’.
•Check the connections on the SENSE BLOCK (at rear panel),
there should be a link between + and S+ and between – and S–
(see fig. 4 - 16).
•Check if there is a link in the Interlock connector (if not, the RSD
LED will be on).
•Set both the CV- and CC-limit potentiometer (at front panel) at
maximum (fully clockwise).
•Turn both the CV and CC potentiometers a few turns clockwise.
A voltage should be present on the output (for units with Option
P220 first remove the Keylock function before the CV and CC
knobs can be turned, see par. 2) in previous chapter "operating
manual").
•Turn both the CV and CC potentiometers a few turns clockwise. A
voltage should be present on the output.
3) PROGRAMMING DOES NOT WORK OK
•Check the unit is in Remote mode (Remote CV and/or Remote CC
LED should be on).
•The unit works OK in manual control, but in programming
mode the output voltage / current has a large error.
Probably the fuse in series with Ø (pin 1) of programming
connector tripped, the fuse (F27_1 = 650 mA) is a self-resetting
type (see fig. 4 - 14).
•To check the fuse (F27_1) measure the voltage between Ø and
the minus output, during the fault condition. The voltage should
only be a few mV, a high voltage means that an unwanted current
is flowing through pin 1 of the prog. connector.
Please check why current is flowing through pin 1, see also next
paragraph 4) and fig. 4 - 15.
4) PROGRAMMING OFFSETS
•Unwanted offsets in the programming can be caused by
earth loops.
Figure 4 - 15 shows a typical earthing problem. In case the load
has a connection to earth and the programming source as well,
problems could occur. Improper choice of the earthing point of the
load can give a voltage drop of ΔV1. Connecting the minus or zero
to a separate earth connection can give a voltage drop of ΔV2. Be-
cause the internal wires of the programming input are thin, the
voltage drops ΔV1 and ΔV2 will be across the internal wiring as
well. Resulting in an error voltage in series with the programming
voltage.
•The best solution for this is to use a floating programming source,
a floating load or the optional internal ISO AMP CARD(δ-product).
5) STATUS OUTPUTS FAIL
•Check fuse F27_2 in series with Ø (pin 8 of CON E), see fig. 4 - 14.
To check the fuse measure the voltage between Ø and the minus
output, a high voltage means too much current flowing through the
fuse. F27_2 = 650 mA, self resetting.
fig. 4 - 14
Location of programming fuses on P598
P598 is situated directly behind the rear panel
fig. 4 - 15
Unwanted programming offsets

DELTA ELEKTRONIKA BV SM6000
Page 4 - 7 OPERATING MAINTENANCE TROUBLE SHOOTING CALIBRATING July 2003, rev. May 2008
6) MASTER / SLAVE PARALLEL PROBLEMS
•Check the voltage drop of the wiring between the master and the
slaves is < 10 mV.
•Check the wiring has a low inductance.
7) OUTPUT VOLTAGE IS HIGHER THAN SET VALUE
•Check connections on SENSE BLOCK (on rear panel), For nor-
mal operation there should be a link between + and S+ and be-
tween – and S– (see also fig. 4 - 16). When remote sensing is
used, check the wires of the sensing.
8) OT LED on
•The temperature of the internal heat sink is too high,
the output has been shutdown to avoid overheating.
•Check if the cooling fans are running.
•Check if the air temperature of the air inlets (left) is below 50 °C
and the airflow is not obstructed.
9) OT LED blinks
•The temperature of the internal heat sink is getting too high, a fur-
ther increase will shutdown the power supply.
•Check if the cooling fans are running properly.
•Check if the air temperature of the air inlets (left) is below 50 °C
and the airflow is not obstructed.
10) ACF LED on
•Phase Loss, check input.
•The input voltage is too low or was intermittent because of a bad
connection. Disconnect the mains, wait a few minutes and try
again.
As soon as the ACF LED Iights, the settings for Remote CV,
Remote CC and Keylock will be saved. If the unit turns back on, it
will have the same settings. For the setting of Output On/Off after
turning the unit back on, the position of DIP switch 2 on SW1 is de-
termining.
If the ACF situation lasts a few seconds, the output will shutdown.
The ACF problem has to be solved first, before the output can be
turned on again.
•Internal error, send unit for repair. See previous paragraph 1).
11) DCF LED on
•The output voltage is below the set voltage. This automatically
happens when the unit is in CC-mode (CC LED is on).
Also with an interrupted Interlock connector, the DCF LED will be
on.
•Internal error, send unit for repair. See previous paragraph 1).
12) PSOL LED on
•The Power Sink is in overload or the temperature of the Power
Sink is too high. See datasheet of the Power Sink option for further
details.
13) Blinking LEDs REMOTE CV, REMOTE CC and
OUTPUT ON
•This indicates the Keylock function is activated, see previous
paragraph 2) in "operating manual".
14) NO LEDS on
•Check input.
•Do not try to repair, but send for repair. See previous paragraph 1).
15) OTHER
•If the problem persists, please fill out the RMA-form on our website
www.DeltaPowerSupplies.com. See also previous paragraph 1).
fig. 4 - 16
For normal operation links should be connected
between S+ and + and between S– and –

SM6000 DELTA ELEKTRONIKA BV
July 2003, rev. May 2008 OPERATING MAINTENANCE TROUBLE SHOOTING CALIBRATING Page 4 - 8
CALIBRATION
1) GENERAL
•The power supplies are factory calibrated
and normally need no further calibration.
Only in special situations (for example after
repairing a unit) calibration can be neces-
sary.
2) METER CALIBRATION
•DIGITAL METERS
The full scale indication can be calibrated
with R25_31 and R25_36 on P596 (see
fig. 4 - 17).
3) SPECIAL CALIBRATIONS
•The following calibrations must be done by
qualified personnel only. Wrong calibration
causes malfunction. These calibrations are
only needed after special repairs.
Warning ! Damage caused by wrong
calibration is not warranted.
•CALIBRATING THE CURRENT
MONITOR OFFSET.
With R26_73 on P597 the offset of the CC
monitor voltage can be calibrated (see fig.
4 - 18). The unit has to be unloaded, the out-
put voltage has to be turned off using the
OUTPUT ON/OFF button. Measure the off-
set voltage of the CC monitor on the pro-
gramming connector. Calibrate the offset on
a negative value between –1 mV and zero
mV.
Warning! wrong calibration can damage
the unit.
•CALIBRATING MAX. CURRENT RANGE
or CALIBRATING CC MONITOR FULL
SCALE.
Short the output using a low resistive cable.
Measure the output current with an accurate
shunt. The maximum output current can be
calibrated with R26_41. R26_41 is located
on P597 (see fig. 4 - 18).
Program CC input with exactly 5.00 V.
Set output voltage to a high value, ensuring
the power supply is in CC mode. Calibrate
the current with R26_41 exactly on the rated
maximum current.
Warning! Wrong calibration can damage
the unit.
fig. 4 - 17
Meter calibration with 25-turn potmeters on P596
fig. 4 - 18
Calibrating max. current and offset on P597
full scale
offset

P.O. BOX 27
4300 AA ZIERIKZEE
NETHERLANDS
TEL. [phone]
FAX [phone]
www.DeltaPowerSupplies.com
We
Delta Elektronika
P.O. BOX 27
4300 AA ZIERIKZEE
The Netherlands
declare under sole responsibility that the following Power Supplies:
SM 15-400
SM 30-200
SM 45-140
SM 60-100
SM 70-90
SM 120-50
SM 300-20
meet the intent of Directives 2004/108/EC; 92/31/EEC; 93/68/EEC for Electromagnetic
Compatibility and
Directives 73/23/EEC; 93/68/EEC regarding Electrical Safety. (Low Voltage Directive)
Compliance was demonstrated to the following specification as listed in the official Journal
of the European Communities:
EN 61204-3 EMC, low voltage DC power supplies
EN 61000-6-3 Generic Emissions: (residential, light industrial)
EN 55022 Radiated and conducted, Class B
EN 61000-3-2 Power Harmonics
EN 61000-3-3 Voltage fluctuation and flicker
EN 61000-6-1 Generic Immunity: (residential, light industrial)
EN 61000-6-2 Generic Immunity: (industrial environment)
EN 61000-4-2 Electrostatic Discharge
EN 61000-4-3 Radiated electromagnetic fields
EN 61000-4-4 Electrical Fast Transients / Bursts
EN 61000-4-5 Surge on DC output
EN 61000-4-5 Surge on line input
EN 61000-4-6 RF common mode, conducted
EN 61000-4-11 Voltage variations and dips
EN 60950 Safety of IT equipment
EN 61010 Safety of electrical equipment for measurement, control and laboratory use
EC Declaration of Conformity
Managing director