Gossen MetraWatt P1500, Operating Instructions Manual

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6 GMC-I Messtechnik GmbH
2.3 Preparing for Operation
Note: Numbers in brackets make reference to the items listed in
the dimensional drawing.
2.3.1 Installing the Optional GPIB Interface Module
Warning!
The device must be switched off when installing the
interface module.
Remove the mains plug from the outlet.
The interface module may be damaged by electrostatic
discharge. ESDS handling guidelines must be adhered
to. Do not touch electrical contacts or components.
1. Unscrew the cover plate at the right-hand side of the rear
housing panel.
2. Carefully remove the ribbon cable from the cable uptake and
plug it in, being certain to observe coding as shown on the
interface module.
3. Carefully insert the connected module into the opening and
secure it with the previously removed cover plate screw.
2.3.2 Setup as Benchtop Device
The instrument is shipped as a benchtop device and the feet are
already installed. The mounting tabs for installation to a 19" rack
are shipped loose. The instrument can be set up as a benchtop
device and placed into operation. Unimpaired ventilation of the
instrument must be assured during setup.
2.3.3 Installation to a 19'' Device Cabinet
The SYSKON KONSTANTER housing allows for use as a bench-
top instrument, as well as for installation to a 19'' rack.
The benchtop instrument can be quickly converted to a rack
mount device:
1. Unscrew the handles at the front.
2. Pull out the filler strips at the sides and replace them with the
included rack-mount fastening tabs.
3. Replace the front handles (if you prefer to leave the handles
off, turn M4 screws with a maximum length of 8 mm into the
threaded holes).
4. Unscrew the feet from the bottom of the housing.
5. Save all loose parts for possible future use.
Attention!
!
The instrument must be attached at both sides to guide
rails inside the device cabinet. The guide rails, as well as
the front panel mounting screws, are cabinet-specific
and must be procured from your rack supplier.
2.3.4 Connection to the Mains
Warning!
Protective Grounding, PE Connection
The KONSTANTER may only be placed into operation
after the protective conductor has been connected.
Interruption or disconnection of the protective conductor
may result in
danger for the user.
The device is connected to the mains by means of a 3
conductor cable with mains plug.
Attention!
!
Before switching the SYSKON KONSTANTER on, it must
be assured that available mains power complies with the
supply power values specified at the mains connection
on the back of the device.
SYSKON P500/P800/P1500: The device can be operated with either
115 or 230 V mains power. Full output power (1500 W) can be
taken advantage of when operated with 230 V mains power. Due
to resulting input current, only 750 W of output power can be
supplied when operated with 115 V mains power.
SYSKON P3000/P4500: In order to exploit the full nominal power, the
device must be operated with a 400 Volt 3-phase current system.
Integrated monitoring circuits detect mains power and limit output
power in the event of overloading.
The instrument is connected to a mains outlet with earthing con-
tact via the mains inlet connector [18] at the rear panel with the
help of the included power cable (only included with the SYSKON
P500/P800/P1500).
2.3.5 Connecting Power Consumers
The output leads are connected to the output terminal blocks [14]
at the rear panel by means of ring-type cable lugs with the
included screws.
(SYSKON P500/P800/P1500: M6 x 10, SYSKON
P3000/P4500: M8 x 12 and M6 x 10). In addition to this, 4 mm
holes are also provided which are intended for the connection of
any utilized measurement cables.
Connection:

Remove the safety cap.

Connect the output leads to the terminal blocks with the
provided screws and washers.

An adequate wire cross-section and correct polarity must be
assured. It is advisable to twist the output leads and to identify
polarity at both ends.

Avoid exerting excessive force at the terminals.

Align the leads to the openings in the safety cap.

Snap the safety cap back into place.
In order to be able to take advantage of highly constant output
voltage at the consumer even if long leads are used, sensing
leads can be used to compensate for voltage drops within the
output leads (see chapter 7).
The terminals for the sensing leads are located on the analog
interface.
2.3.6 Connection to Computer Interfaces
Three interfaces are available on the instrument for computer-
controlled operation.
The device is furnished with a USB port and an RS 232 interface
as standard equipment.
A GPIB interface can be ordered as an optional module and
installed as described. Installation at a later point in time is also
possible.
The instrument cannot be remote controlled via more than one
interface at a time. It is thus advisable to connect the desired
interface only.
In order to avoid communications problems with the interfaces,
only one interface should be connected to the computer.
Problems may otherwise occur.
In order to assure that existing bus activity is not interfered with,
all affected devices should be switched off while establishing the
bus connection.
All of the interfaces have a common reference point (GND) which is
connected to PE, and are isolated from the output in accordance with the
specified electrical safety regulations.