Arroyo Instruments ComboSource 6300 Series User manual

Page 2 · 6300 Series ComboSource User’s Manual
Table of Contents
Introduction ...............................................................................................3
Safety Terms and Symbols.......................................................................5
Quick Start ................................................................................................7
Installation .................................................................................................8
Operation ................................................................................................11
Settings and Menus ................................................................................15
Saving and Restoring Configurations .....................................................22
Using the Function Keys .........................................................................23
Connecting to the ComboSource...........................................................25
Power and Cable Connections ...............................................................26
Grounding Considerations......................................................................28
Remote Mode Operation.........................................................................28
Installing the USB Drivers .......................................................................29
Thermal Considerations..........................................................................29
Using the Laser Driver.............................................................................31
Laser Control Modes...............................................................................31
Using the Laser Limits.............................................................................32
Analog Modulation..................................................................................33
Compensating for Voltage Loss..............................................................34
Using the Temperature Controller ..........................................................37
TEC Control Modes.................................................................................37
Using the TEC Limits...............................................................................37
Selecting the Fixture ...............................................................................37
Working With Thermistors.......................................................................38
Working With RTDs .................................................................................39
Working With AD590s and LM335s ........................................................41
External Fan Control ...............................................................................41
Resistive Heaters and Heat/Cool Only Modes........................................42
Gain Control and the PID Loop...............................................................42
Using the AutoTune Function .................................................................43
Using the AutoTune Function Remotely .................................................45
Compensating for TEC Cable Resistance ..............................................46
Field Calibration (User Cal).....................................................................47
Specifications..........................................................................................52
Error Messages.......................................................................................55
Maintenance and Service........................................................................58

6300 Series ComboSource User’s Manual · Page 3
Introduction
Thank you for choosing the ComboSource from Arroyo Instruments. The
ComboSource combines the features of our LaserSource and TECSource into
a single, powerful instrument. The ComboSource represents years of
experience in the field of current and temperature control.
With a large, crystal clear VFD display, both RS232 and USB computer
interfaces, and small footprint, the ComboSource will fit into almost any laser
diode control application. Unlike other controllers in its class, which use
inexpensive 7-segment displays, the ComboSource takes advantage of its large
VFD display to simultaneously show the set points and measurements.
The ComboSource also includes complete optical isolation of both modulation
and photodiode inputs. By isolating these inputs, it prevents unwanted ground
loop problems. No other laser diode driver in the industry has this feature. The
ComboSource also operates in constant voltage control mode, allowing you to
use it in precision voltage applications, such as EML devices, or for doing V-I
measurement graphs.
The user interface of the ComboSource is engineered to make using the
instrument straightforward. With its text-based menus, there is never any
confusion over which setting is being changed, and parameters are displayed in
clear English (no cryptic numbers or LEDs to decode).
The ComboSource offers all the features you would expect from a modern
precision laser controller, including:
 Laser driver:
o 10ppm current stability
o 100mA to 4A current ranges
o High compliance versions for QCL applications
o Comprehensive laser protection circuitry, including hardware
voltage and current limits, and fast transient shutdown.
o External analog modulation
o Power mode control, both in photodiode current (AMC) or
computed photodiode power (APC) modes.
 Temperature Controller:
o AutoTune for automatic PID parameter calculation
o 0.004°C temperature stability and 0.01°C set point resolution
o 60W (5A/12V) output power
 Simultaneous display of set points and readings

Page 4 · 6300 Series ComboSource User’s Manual
What’s in the Box
Along with the ComboSource itself, a CD with electronic copies of this manual,
the Computer Interfacing Manual, and USB drivers are included. For USA
customers, a power cord is included. For non-USA customers, an IEC-60320-
C13 rated AC power cord must be provided.
Accessories
Arroyo Instruments also sells several accessories designed to work with the
ComboSource. These include:
 1220B LaserSource Cable, 4A, 2m
This cable has DB-9 male/female connectors for interfacing to the
LaserMount or other connectorized fixtures, and shielded twisted pair
conductors for improved modulation performance. A pigtailed version
of this cable, with tinned ends for soldering into custom solutions, is
available as p/n 1221B.
 1260B TECSource Cable, 5A, 2m
This cable has DB-15 male/female connectors for interfacing to the
LaserMount or other connectorized fixtures, and supports up to 5A of
TE current and connections for the fan interface. A pigtailed version of
this cable, with tinned ends for soldering into custom solutions, is
available as p/n 1261B.
 1401-RM-1 4300/5300/6300 Series 2U Rack Mount Kit, 1 unit
1401-RM-2 4300/5300/6300 Series 2U Rack Mount Kit, 2 units
For installing your instrument into a standard 19” rack. The 1401-RM-1
is used when installing a single instrument into a 2U rack space. For
mounting two instruments side-by-side, use the 1401-RM-2 rack mount
kit. A 1401-RM-1 cannot be converted to a 1401-RM-2, or vise versa,
so be sure to purchase the correct rack mount kit.
 1600 10kΩThermistor
Accurate to ±0.2°C.
 1200-NULL RS-232 NULL Cable, 2m
 1201 USB Cable, 3m

6300 Series ComboSource User’s Manual · Page 5
Safety Terms and Symbols
The following safety-related terms are used in this manual:
 Warnings (noted by the WARNING heading) explain dangers that
could result in physical injury or death;
 Cautions (noted by the CAUTION heading) explain conditions that
could result in damage to the instrument, other equipment, or your
device.
 Notes (noted by the NOTES heading) are not safety-related, and are
intended simply to point out important information.
If, at any time, any of the following conditions exist, or are suspected of existing,
discontinue use of the unit until it can be inspected by qualified service
personnel:
 Visible damage to the unit, including damage or stress caused during
product shipment;
 Storage of the unit outside the standard storage temperature or
humidity rating, or prolonged storage under harsh conditions;
 Failure to operate properly.
If needed, contact your distributor or Arroyo Instruments for service or repair to
ensure the safety of the product is maintained.
Symbols
Power Off Power On
Caution, refer to manual Earth ground
Caution, risk of electric shock

Page 6 · 6300 Series ComboSource User’s Manual
General Warnings
CAUTION
There are no user-serviceable parts inside. All service
and repair work shall be done by Arroyo Instruments or
personnel authorized by Arroyo Instruments.
Modifications done by non-authorized personnel will
void the warranty. Please see the Service section later
in this manual for instructions on how to obtain service
for this instrument.
WARNING
To avoid electrical shock, ensure a 3-prong power cord
is used, and is plugged into a earth-grounded
receptacle. Failure to do so can result in severe injury or
death.
WARNING
Potentially lethal voltages exist within this instrument.
This instrument is intended for use by qualified
personnel who understand the shock and laser hazards
and are familiar with safety procedures required to avoid
injury. Read this manual completely before attempting
to use this product.

6300 Series ComboSource User’s Manual · Page 7
Quick Start
The ComboSource was designed with ease of use in mind, and you will likely
have little need for this manual for most of the features the unit offers. This
section will show how you can quickly get the unit up and running in almost no
time.
After unpacking the unit, ensure that the voltage selection on the Input Power
Connector (IPC) on the back of the unit is set to the correct voltage. This is
critical, as incorrect voltages can damage the unit. The ComboSource is
typically shipped in the 120V configuration from the factory, but always verify the
voltage selection. Change the voltage as needed. For more information, refer to
Changing the Voltage Selection under the Installation section below.
Once the voltage selection has been completed, plug the AC cord into the unit
and into the wall outlet. Turn on the power switch located on the front panel, and
the unit will power up, displaying the model information, serial number, and
firmware version number.
Press the Menu button to enter the menu, select the »Goto Laser Menu by
pressing the knob, then scroll down until Io Lim setting is displayed. Press the
knob again to edit the setting, and adjust the limit as appropriate to your laser
diode. Press the knob again to save the value. Scroll down and make the same
adjustments to the voltage limit (Vf Lim). Next, you should adjust the
temperature control settings appropriate for your device. Scroll back to the top
of the list and choose «Return to Main Menu, scroll down and select »Goto
TEC Menu, then scroll down and adjust the TEC current limit (I Lim) and high
and low temperature limits (T-High Lim and T-Low Lim), as appropriate for your
application. Once you have made all your adjustments, press the Menu button
to exit the menu.
The unit comes pre-programmed for the BetaTHERM 10K3A1 thermistor. If the
ComboSource is being connected to a LaserMount, no changes need to be
made, as this is the thermistor used in the mount (except for 150°C rated
mounts, which use RTDs). However, if you are using a different manufacturer’s
thermistor or BetaTHERM thermistor, you will need to select the correct sensor
and verify the coefficients are set correctly. Change the Sensor setting and
navigate to the Sensor Coeffs sub-menu, pressing the knob to enter the sub-
menu. Adjust the constants to reflect the values for your sensor, if needed.
Next, connect the cables between your LaserMount or other fixture and the
LASER and TEC OUTPUT connectors of the ComboSource. We recommend
using our cables as they have been designed to work well with the
ComboSource. If using your own cables, ensure they have been properly wired
according to the pin-out of the ComboSource and your fixture.

Page 8 · 6300 Series ComboSource User’s Manual
Finally, set the set points to an appropriate current and temperature and press
the On/Off buttons to turn the outputs on. Typically, you will want to turn the
TEC on first, allow it to stabilize, and then turn on the laser. When turning on the
laser for the first time, it is a good idea to start with a set point of zero and ramp
up to the desired set point. In this way, if the laser is wired incorrectly, the safety
circuits will trip earlier and minimize any chance of damaging the laser. Once
you have confirmed proper operation, the set point can be left at the desired
operating point, and simply use the On/Off button to turn the laser on and off.
If you notice the temperature is oscillating around the set point and not
stabilizing, you may need to adjust the Gain setting in the menu. You can use
the AutoTune feature to automatically calculate the best PID values, or select
from a set of eight factory preset values that typically cover most applications.
To use the factory gains, if the temperature is quickly jumping up and down, the
Gain will typically need to be reduced. If the temperature is slowly moving up
and down, try a higher Gain. You may need to experiment with several gain
settings to find the ideal value, and for even finer control, you can set the Gain to
PID and directly set the PID control values.
For more detailed operating and installation instructions, read on.
Installation
Installation of the ComboSource is very straightforward, as the quick start
section above illustrated. This section will provide additional details and
considerations for installing your ComboSource.
After unpacking the unit, make sure all packing materials have been removed
and nothing obscures the ventilation ports on the sides of the unit.
Changing the Voltage Selection
Before powering on the unit, ensure that the voltage selection on the IPC is set
correctly. Improper voltage selection can easily damage the unit. Changing the
voltage selection requires that you remove the voltage selection module from
the IPC. You can select from 100V, 120V, and 230V. Choose the voltage that
most closely matches your AC voltage.
Remove the power cord from the unit. Using a small, flat-blade screwdriver,
insert the tip of the screwdriver into the two small openings on the sides of the
voltage indication to release the voltage selection module from the IPC, as
shown in the picture below.

6300 Series ComboSource User’s Manual · Page 9
Input Power Connector (IPC)
Once the module has been removed, remove the small, white voltage selection
tumbler from the module, and then re-insert so that the desired voltage is
shown. Re-insert the module into the IPC.
Powering Up the Unit
Once the correct voltage selection has been made, connect the AC power cord
to the unit. You must properly ground the unit by plugging the supplied power
cord into a three prong grounded outlet, or using a three-to-two prong adapter
and connecting the ground tab to earth ground.
Turn the power switch, located on the front panel, into the on (|) position. The
unit will display the model, serial number, and firmware version, go through a
quick power-up self-test, and return to the last known operating state.
Ventilation
The ComboSource has vent holes on both sides of the unit. You must not block
these vent holes, or overheating may occur, causing damage to the unit.
CAUTION
Do not exceed 250VAC on the line input.
It is critical to select the proper voltage selection prior to
applying power to the unit. If the actual voltage exceeds
the voltage selection by +/-10%, damage to the unit
may occur.

Page 10 · 6300 Series ComboSource User’s Manual
Rack Mounting
Rack mounting kits (p/n 1401-RM-1 or p/n 1401-RM-2) for standard 19” racks
are available for the ComboSource, and supports the rack mount of one (1401-
RM-1) or two (1401-RM-2) units in a 2U (3.5”) high opening. Because the unit
draws air from the side, and therefore inside the rack housing, be sure that the
internal rack ambient temperature (which will typically be several degrees higher
than room ambient) does not exceed the unit’s operating temperature. When
using 1401-RM-2 to rack mount two units, either unit may also be a 4300 Series
LaserSource or 5300 Series TECSource.
Warm-up and Environmental Considerations
In order to achieve the highest level of accuracy, the ComboSource should be
powered on for at least one hour prior to taking measurements. In addition,
ensure that the unit is not operating outside the operational temperature range
or humidity conditions.
CAUTION
Do not operate the unit above +40°C ambient, and
ensure the instrument is properly ventilated, or the unit
may overheat and possible damage to the unit may
occur.

6300 Series ComboSource User’s Manual · Page 11
Operation
The Front Panel
Operation of the ComboSource is very straightforward. The sections below will
help familiarize you with the front panel, the display, and the menu structure.
6300 ComboSource Main Screen
The front panel is designed for ease of operation. There is an On/Off button for
the Laser and TEC outputs, one to change which set point is adjusted by the
knob, and one to enter the menu. The remaining three keys are the function
buttons, which can be assigned a variety of actions. More information on the
function keys are available in the section titled Using the Function Keys, below.
The outputs are controlled via the two On/Off buttons:
 For the laser, when turning the output on, there is a programmable
delay (factory default of 3 seconds) where the unit will indicate that the
output is on (the blue output LED will be lit), but the output stage is, in
fact, not on. This is a CDRH safety feature required for some laser
applications, and this delay can be adjusted in the menu. The output
will be energized once the delay has expired.
 For the TEC, when the output is turned on, it will immediately begin
driving current as needed to achieve the set point.
The Menu button is used to enter the ComboSource menu. When in remote
mode, it also acts as a Local button, returning the instrument to local mode.
The adjustment knob located on the right hand side of the unit is used to
change the set point or parameters in the menu. It also acts as a push/enter

Page 12 · 6300 Series ComboSource User’s Manual
button, primary used when making changes in the menu, but can also be used
to change the view mode in the main display (see Main Display Screen below).
There are eight LEDs: two blue LEDs to indicate the on/off state of the laser or
TEC; a red Error LED that indicates an error has occurred; a yellow Remote
LED that indicates the unit is being controlled via a computer; two green LEDs to
indicate which set point will be adjusted by the knob; and two more green LEDs
to indicate which current control range is active.
Whenever an error is generated, the red Error LED will light, and the error will be
displayed on the VFD display. There may be one or more errors, but only the
first error will be displayed. To display the next error, press Menu button. To
clear all errors, press the knob. A list of error codes can be found in the Error
Messages section below.
When the unit is in remote mode, the yellow Remote LED will be lit. More
information about how the instrument behaves in remote mode can be found in
the Remote Mode Operation section below.
Main Display Screen
On the main display you will find both set points and measurements. Which set
point and measurements are displayed is dependent on the control mode you
have selected.
You can select which set point is adjusted by pressing the Select button. The
active set point is displayed on the screen via inverted text, and either the Laser
or TEC selection LED will be lit.
You can also control the size of the characters by enlarging either the Laser, the
TEC, or both. When on the main display, this can be done by pressing the Enter
button (the knob), or by changing the Display setting in the System menu.
When in large display mode, only the actual operating value is displayed. When
the set point is changed via the knob, the display will briefly show the set point,
and then return to displaying the actual measurement.

6300 Series ComboSource User’s Manual · Page 13
Example displays are shown below:
Main Display: Both Small
Main Display: Laser Large
Main Display: TEC Large
Main Display: Both Large
Measurements
One of the advantages of the ComboSource is its ability to display both the set
point and measurements simultaneously (when in small display mode). The
table below shows which values will appear on the display depending on the
mode selected:
IoSET= 3850.1mA .LoBW.
Im=950.1µA Vf=1.941V
TSET= 25.00°C V= 6.72V
T= 25.00°C I= 3.25A
Io= 3850.1
TSET= 25.00°C V= 6.72V
T= 25.00°C I= 3.25A
IoSET= 3850.1mA .LoBW.
Im=950.1µA Vf=1.941V
T= 25.00
Io= 3850.1
T= 25.00

Page 14 · 6300 Series ComboSource User’s Manual
Mode Setpoint Displayed Measurements
Laser
Io Current (mA) PD current or power and voltage
Im PD current (μA) Current and voltage
Po PD power (mW) Current and voltage
Vf Voltage (V) Current and PD current or power
TEC
T Temperature (°C) Temperature, current and voltage
R Sensor (kΩ, mV, uA, or Ω) Sensor, current and voltage
ITE TEC current (A) Temperature, current and voltage
The instrument will show photodiode current or photodiode power, depending
on the value of PD Resp. Photodiode current is shown whenever PD Resp is
zero, while photodiode power will be shown whenever PD Resp is non-zero.
See the Laser or TEC Control Modes sections below for more information on the
various modes.
Status Messages
The instrument will display status messages in upper right corner indicating
several different conditions for the laser that may be of interest to the user. If
multiple conditions exist simultaneously, then the instrument will cycle through
each condition, displaying each status message for approximately one second.
Possible laser condition messages are:
LoBW The unit is in Io (LoBW) mode.
HiBW The unit is in Io (HiBW) mode.
Script The unit is executing a script or remote command.
Lock The interlock is open and the unit cannot be turned on.
Shrt A short circuit has been detected on the output.
ILim The unit is in current limit.
MLim The unit is in photodiode current limit.
PLim The unit is in photodiode power limit.
Notice that LoBW and HiBW mode indicators are in reverse text, and are used to
highlight the operating mode.

6300 Series ComboSource User’s Manual · Page 15
Settings and Menus
All parameters of the ComboSource can be viewed and changed within the
menu. The menus are constructed with the most used parameters first, and
grouped by section. To change any setting, press Menu to enter the menu then
rotate the knob to select the submenu. The laser settings are grouped below the
Laser menu, the TEC settings are grouped below the TEC menu, etc. To enter a
menu or begin edting a setting, simply press the knob to begin changing the
value. As a visual indication that you are in edit mode, you will see an asterisk
appear next to the value. Once you have made your change, press the knob or
Menu button to store the value. Pressing the Menu button will store and exit the
menu, while pressing the knob will store the value but leave you in the menu to
make additional changes.
Menu Description Factory
Default
Laser Menu
Mode As described in the Control Modes section above,
the unit offers seven control modes: Io (ACC), Io
HiBW (ACC), Im (AMC), Po (APC), and Vf (AVC).
Change this setting to select a new mode.
Io (ACC)
Range Selects the high or low current range. Only applies
in Io or Io HiBW modes (all other modes operate in
high range).
High
Io Res Resolution of the Io set point and measurement.
Available options are dependent on the range of
the instrument.
Depends on
model
Io Limit This setting controls the maximum amount of
forward current that can be delivered to the laser
diode. This limit is implemented in hardware for
high speed response. For more information about
limits, see Hardware and Software Limits below.
Maximum
Im Limit This setting controls the maximum amount of
monitor photodiode current the unit will allow. This
limit is implemented in software. For more
information about limits, see see Hardware and
Software Limits below.
Maximum
Po Limit This setting controls the maximum amount of
monitor photodiode power the unit will allow. This
limit is implemented in software. For more
information about limits, see see Hardware and
Software Limits below.
Maximum

Page 16 · 6300 Series ComboSource User’s Manual
Menu Description Factory
Default
Vf Limit This setting controls the maximum amount of
forward current that can be delivered to the laser
diode. This limit is implemented in hardware for
high speed response. For more information about
limits, see see Hardware and Software Limits
below.
Maximum
Vf Sense Selects the remote voltage sense lines for diode
voltage measurement. The remote voltage sense
pins must be wired to the diode. See Using
Remote Voltage Sense below for more details.
Local
Vf Sense
Warn
When operating in remote voltage sense mode, if
the remote voltage is significantly lower that the
voltage at the Laser Output connector, a warning
message is displayed. The setting disabled the
warning. Only available when Vf Sense is set to
Remote.
Yes
Cable R The cable resistance, in ohms. This setting can be
used to compensate for voltage losses in the cable
due to cable and connector resistances. Cable R
is ignored in Vf (AVC) Mode. For more information
about this feature, see Using the Cable R Setting
below. Not available when using remote voltage
sense.
0.0000 Ω
Int Contact Enables or disables intermittent contact. Off
PD Resp This factor is used by the unit to convert from
monitor photodiode current into optical power. The
value is in terms of microamps per milliwatt
(μA/mW), such that power = photodiode current
divided by the factor.
0.00μA/mW
PD Bias This is the photodiode bias voltage, which is
applied to the PD+/PD- pins of the output
connector.
5.0V
Tol Time Tolerance time is the amount of time, in seconds,
that the measured value (current, voltage, etc.)
must be within the set point +/- the tolerance for
the unit to be considered in tolerance. In Io modes,
the tolerance is defined by Tol Io. For Im/Po
modes, the tolerance is fixed at 50uA. For Vf
mode, the tolerance is fixed at 50mV.
5 seconds
Tol Io Tolerance current is a band (in mA) around the set
point. When the actual current is within this band
for longer than the Tol Time setting, then the unit is
considered to be in tolerance.
10.0mA

6300 Series ComboSource User’s Manual · Page 17
Menu Description Factory
Default
On Delay The delay, from the time the Output button is
pressed to when the output is actually energized.
3000ms
Laser Menu »Advanced
Off if TEC
Off
Turns off the laser output if the TEC turns off No
Off if TEC
Tlim
Turns off the laser output if the TEC exceeds the
temperature limit
No
Off if Io Lim Turns off the laser output if the Io limit is active No
Off if Im Lim Turns off the laser output if the Im limit is exceeded Yes
Off if Po Lim Turns off the laser output if the Po limit is exceeded Yes
Off if OutTol Turns off the laser output if the laser goes out of
tolerance
No
Laser Menu »Advanced »User Cal
Edit Cal Must be set to Yes before user calibration settings
can be changed.
No
Reset Cal Reset the Laser user calibration data to factory
defaults (all slopes to 1, all offsets to 0). Requires
Edit Cal to be set to Yes before this setting will be
displayed.
No
Various
M & B
Settings
Slope (M) and Offset (B) user calibration settings
for each set point and measurement. See the User
Cal - Field Calibration section below for additional
details on using slope/offset calibration.
No
TEC Menu
Mode This sets the operating mode (T Mode, R Mode, or
Ite Mode) of the temperature controller.
T Mode
Mount Specify the mount connected to the
ComboSource. If using a LaserMount, select the
appropriate model. Otherwise, select User Defined.
User
Defined
I Lim I Lim sets the current limit of the temperature
controller. The limit should be set to a value that is
suitable for your Peltier device.
3A

Page 18 · 6300 Series ComboSource User’s Manual
Menu Description Factory
Default
Gain Gain controls the response of the temperature
controller. A higher gain value will cause the
controller to respond more quickly to the difference
between the set point and the actual temperature,
while a lower value will cause it to respond more
slowly. Select PID for direct access to the PID
parameters. Read more on setting gain below.
10
PID P The proportional term of the PID loop. Will only be
available if Gain is set to PID.
1
PID I The integral term of the PID loop. Will only be
available if Gain is set to PID.
0.01
PID D The derivative term of the PID loop. Will only be
available if Gain is set to PID.
0
Sensor Sets the temperature measurement sensor. Can be
Therm 100uA, Therm 10uA, LM335, AD590, RTD, or
RTD (4-wire).
Therm
100uA
T-Low Lim T-Low Lim is the lower temperature limit. If
operating in T Mode and the actual temperature
drops below this value, the output will be turned
off. Temperature limits not monitored in R Mode or
Ite Mode. Limit monitoring can also be disabled in
software (see TEC:ENAB:OUTOFF command).
-99°C
T-High Lim T-High Lim is the upper temperature limit. If
operating in T Mode and the actual temperature
rises above this value, the output will be turned off.
Temperature limits not monitored in R Mode or Ite
Mode. Limit monitoring can also be disabled in
software (see TEC:ENAB:OUTOFF command).
125°C
R-Low Lim R-Low Lim is the sensor low limit. If operating in R
Mode and the actual sensor measurement drops
below this value, the output will be turned off. R
limits are not monitored in Ite Mode. Limit
monitoring can also be disabled in software (see
TEC:ENAB:OUTOFF command).
0.01kΩ
R-High Lim R-High Lim is the sensor high limit. If operating in
R Mode and the actual sensor measurement
exceeds this value, the output will be turned off. R
limits are not monitored in Ite Mode. Limit
monitoring can also be disabled in software (see
TEC:ENAB:OUTOFF command).
45kΩ

6300 Series ComboSource User’s Manual · Page 19
Menu Description Factory
Default
Tol Time Tolerance time is the amount of time, in seconds,
that the actual temperature must be within the set
point temperature +/- the Tol Temp value for the
unit to be considered in tolerance.
5 seconds
Tol Temp Tolerance temperature is a temperature band (in
°C) around the set point temperature. When the
actual temperature is within this band for longer
than the Tol Time setting, then the unit is
considered to be in tolerance.
0.1°C
H/C Mode This selects the heating and/or cooling mode of
the ComboSource. See the section below titled
“Resistive Heaters and Heat/Cool Only Modes” for
more information.
Heat/Cool
Ext Fan This selects the voltage for the auxiliary fan power
supply. See the section below titled “External Fan
Control” for more information.
Off
Ext Fan Pwr When Ext Fan is set to Custom, this sets the
specific fan voltage from 4.0 to 12.0 volts. See the
External Fan Control section below for more
information.
12.0
Ext Fan
Mode
Controls when the fan operates. See the
External Fan Control section below for more
information.
Auto
Ext Fan Off When Ext Fan Mode is set to Delay, this setting
defines the number of minutes to delay turning off
the fan after the TEC output has been turned off.
See the External Fan Control section below
for more information.
5 minutes
Cable R The resistance of the cable and connectors, in
ohms. This setting allows for accurate voltage
measurement at the TEC by removing the voltage
loss of the cable.
0.0080Ω
TEC Menu »Sensor Coeffs
ThermA The A term in the Steinhart-Hart equation. 1.12924E-03
ThermB The B term in the Steinhart-Hart equation. 2.34108E-04
ThermC The C term in the Steinhart-Hart equation. 0.87755E-07
RTD A The A term in the RTD equation. 3.98480E-03
RTD B The B term in the RTD equation. -0.58700E-06

Page 20 · 6300 Series ComboSource User’s Manual
Menu Description Factory
Default
RTD C The C term in the RTD equation. 4.00000E-12
RTD R0The R0term (in Ω) in the RTD equation. 100.00
AD590 M The slope term in the AD590 correction
equation.
1.00000
AD590 B The offset term, in °C, in the AD590
correction equation.
0.000
LM335 M The slope term in the LM335 correction
equation.
1.00000
LM335 B The offset term, in °C, in the LM335
correction equation.
0.000
TEC Menu »AutoTune PID
See using the AutoTune Function later in
this manual for details on this item.
TEC Menu »Advanced
Invert ITE Reverses the direction of the current No
Off if Thi
Lim
Turns off the TEC output if the TEC exceeds the
temperature high limit
Yes
Off if Tlo
Lim
Turns off the TEC output if the TEC exceeds the
temperature low limit
Yes
Off if R Lim Turns off the TEC output if the TEC exceeds the
sensor limit
No
Off if ITE
Lim
Turns off the TEC output if the TEC hits the current
limit
No
Off if TE
Open
Turns off the TEC output if the TEC module
appears to be an open circuit
Yes
Off if Out
Tol
Turns off the TEC output if the TEC is out of
tolerance
No
Off if Sens
Open
Turns off the TEC output if the sensor appears to
be an open circuit
Yes
Off if Sens
Shrt
Turns off the TEC output if the sensor appears to
be a short circuit
Yes