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Model 7708 M ultiplexer M odule Instructions for use w ith DAQ6510 077144500 / April 2018 11 Before installing or removing a switching module, make sure the D AQ6510 power is turned off and disconnected fro m line pow er…
Model 7708 Multiplexer Module Instructions for use with DAQ6510
10 077144500 / April 2018
Installation
Before operating an instrument with an accessory switching module, verify that the switching
module is properly installed and the mounting screws are tightly fastened. If the mounting
screws are not properly connected, an electrical shock hazard may be present.
To use the switching operations, a switching module must be installed in the DAQ6510.
If you are installing two switching modules, it is easier to install one switching module into Slot 2 first, then
install the second switching module into Slot 1.
If you have a Keithley Instruments Model 2700, 2701, or 2750 instrument, you can use your existing
switching module in the DAQ6510. Follow the instructions in your original equipment documentation
to remove the module from the instrument, then use the following instructions to install it in the
DAQ6510. You do not need to remove wiring to the module.
For inexperienced users, it is recommended that you do not connect a device under test (DUT) and
external circuitry to the switching module. This allows you to exercise close and open operations
without the dangers associated with live test circuits. You can also set up pseudocards to experiment
with switching. Refer to Pseudocards in the Model DAQ6510 Reference Manual for information on
setting up pseudocards.
To prevent electric shock that could result in injury or death, never handle a switching
module that has power applied to it. Before installing or removing a switching module, make
sure the DAQ6510 is turned off and disconnected from line power. If the switching module is
connected to a DUT, make sure power is removed from all external circuitry.
If a card slot is unused, you must install slot covers to prevent personal contact with high
voltage circuits. Failure to install slot covers could result in personal exposure to hazardous
voltages, which could cause personal injury or death if contacted.
Model 7708 Multiplexer Module Instructions for use with DAQ6510
077144500 / April 2018 11
Before installing or removing a switching module, make sure the DAQ6510 power is turned
off and disconnected from line power. Failure to comply may result in incorrect operation and
loss of data in the memory.
Required equipment:
▪ Medium flat-blade screwdriver
▪ Medium Phillips screwdriver
To install switching module into the DAQ6510:
1. Turn off the DAQ6510.
2. Disconnect the power cord from the power source.
3. Disconnect the power cord and any other cables that are connected to the rear panel.
4. Position the DAQ6510 so you are facing the rear panel.
5. Use the screwdriver to remove the slot cover screws and the cover plate. Retain the plate and screws for
future use.
6. With the top cover of the switching module facing up, slide the switching module into the slot.
7. Press the switching module in firmly to make sure the switching module connector is connected to the
DAQ6510 connector.
8. Use the screwdriver to tighten the two mounting screws to secure the switching module to the mainframe.
Do not overtighten.
9. Reconnect the power cord and any other cables.
Remove a switching module
Before you remove a switching module, or begin any testing, make sure that all of the relays are
open. Since some relays may be latched closed, you must open all of the relays before removing the
switching module to make connections. Additionally, if you drop your switching module, it is possible
for some relays to latch closed.
To open all channels select Menu > Control > Open. If there are no channels closed, the Open button is not
selectable.If any channel is closed, then the Open button is active and selecting it will open all channels.
To prevent electric shock that could result in injury or death, never handle a switching
module that has power applied to it. Before installing or removing a switching module, make
sure the DAQ6510 is turned off and disconnected from line power. If the switching module is
connected to a DUT, make sure power is removed from all external circuitry.
If a card slot is unused, you must install slot covers to prevent personal contact with high
voltage circuits. Failure to install slot covers could result in personal exposure to hazardous
voltages, which could cause personal injury or death if contacted.
Model 7708 Multiplexer Module Instructions for use with DAQ6510
12 077144500 / April 2018
Before installing or removing a switching module, make sure the DAQ6510 power is turned
off and disconnected from line power. Failure to comply may result in incorrect operation and
loss of data in the memory.
Required equipment:
▪ Medium flat-blade screwdriver
▪ Medium Phillips screwdriver
To remove switching module from the DAQ6510:
1. Turn off the DAQ6510.
2. Disconnect the power cord from the power source.
3. Disconnect the power cord and any other cables that are connected to the rear panel.
4. Position the DAQ6510 so you are facing the rear panel.
5. Use the screwdriver to loosen the mounting screws that secure the switching module to the mainframe.
6. Carefully remove the switching module.
7. Install a slot plate or switching module in the empty slot.
8. Reconnect the power cord and any other cables.
Operation
This switching module does not support current measurements. If the instrument has the TERMINALS switch
set to REAR and you are working with the slot that contains this switching module, the AC , DC , and digitize
current functions are not available. You can measure current using the front panel or using another slot that
contains a switching module that supports the AC , DC , and digitize current measurements.
If you use remote commands to attempt to measure current when configuring a channel, an error is returned.
Performance verification
The performance of the module is tested by verifying the accuracy of measurements made through the module.
If verification limits are met through the front-panel terminals of the DAQ6510, they should also be met through
the module.
Do not attempt to perform this procedure unless qualified to do so. Failure to recognize and
observe normal safety precautions could result in personal injury or death.
Measurement accuracy through the module should only be verified after instrument accuracy has
been verified through the front-panel terminals of the DAQ6510. Refer to the DAQ6510 Calibration
and Adjustment manual (documentation number DAQ6510-905-01) for verification information.