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Page 32 · 

TECPak

 User’s Manual 

 

 

Connecting to the Analog Interface

 

 
Connecting to the Analog Interface is very straightforward. Because the inputs 
and outputs are buffered, you do not need any external filters or buffers, unless 
your application requires it. The logic level interfaces are all high impedance, as 
is the Analog Set Point Input. The Analog Monitor Output is an op-amp driven 

through a 1k

 resistor to protect against output shorting. 

 
A typical application might look like this: 
 

 

 

 

 

On/Off

 

Control

 

On/Off

 

Status

 

Stable

 

Status

 

DAC

 

ADC

 

CPU

 

or

 

I/O

 

Board

 

TECPak

 

Analog

  

Interface

 

Set

 

Point

 

Monitor

 

Ground

 

Ground

 

Содержание TECPak 585 Series

Страница 1: ......

Страница 2: ...he USB Drivers 18 Working With Thermistors 19 Working With RTDs 21 User Calibration of Resistance Sensors 23 Controlling the Temperature Rate of Change 24 External Fan Control 24 Resistive Heaters and...

Страница 3: ...rol in applications that do not have a computer interface The TECPak offers all the features you would expect from a modern temperature controller including Support for both thermistor and RTD sensors...

Страница 4: ...ollowing 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...

Страница 5: ...attempting to use this product 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 de...

Страница 6: ...stalled plug the instrument into your RS 232 or USB interface For USB users the instrument may also ask for drivers which are also found on the CD Launch Arroyo Control and in the TECSource panel if o...

Страница 7: ...Pak After unpacking the unit make sure all packing materials have been removed and nothing obscures the ventilation ports on the front and back of the unit The TECPak has a universal input power suppl...

Страница 8: ...entilate from the front and rear no air gapping is required above or below the units and they can be rack mounted immediately above other equipment no rack spacers required Warm up and Environmental C...

Страница 9: ...or equation and directly select the sensor set point This can be useful when only the desired sensor value is known or when the sensor to temperature conversion values are not available for your senso...

Страница 10: ...erature controller T Mode TEC MODE Mount Specify the mount connected to the TECPak If using a LaserMount select the appropriate model Otherwise select User Defined User Defined TEC MOUNT I Lim I Lim s...

Страница 11: ...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...

Страница 12: ...nitored in Ite Mode Limit monitoring can also be disabled in software see TEC ENAB OUTOFF command 45k TEC LIM RHI Tol Time Tolerance time is the amount of time in seconds that the actual temperature m...

Страница 13: ...umber 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 TEC FAN Cable R The resistance of the c...

Страница 14: ...s No TERMINAL Msg Term This controls the output message termination and can be set to CR LF CR LF or None CR LF TERM Arroyo Control While most of the settings of the TECPak can be changed over the com...

Страница 15: ...input power connector They are USB RS 232 analog and output connectors The first three are located on the front of the unit while the output connector is located on the rear of the unit In addition th...

Страница 16: ...trol Input 2 On Off Status Output 3 Stable Output 4 Analog Temperature Monitor 5 Analog Temperature Set 6 Ground 7 5V Auxiliary Supply 8 Ground Output Connector DB 15 Female Disabled when in RTD 4 wir...

Страница 17: ...9 Male For more information on using the RS232 interface see the Computer Interfacing Manual which is included on the CD that accompanied this product LED Indicators There are two LEDs the upper gree...

Страница 18: ...the instrument will appear as a virtual serial port that you can use just like a normal serial port To install the drivers simply plug in the instrument to your computer When the Add New Hardware wiza...

Страница 19: ...of the thermistor drops very quickly In the typical control range 0 C to 70 C typical 10K thermistors offer good sensitivity to changes in temperature and this is the range in which most 10K thermisto...

Страница 20: ...einhart Hart Equation As can 6be seen from the temperature versus resistance graph above resistance varies inversely with temperature in a non linear fashion This relationship can be accurately modele...

Страница 21: ...ured For resistances above the R0 value resistance at 0 C typically 100 of the RTD the following equation is used 1 2 0 BT AT R R Below R0 an additional term is added to the equation 100 1 3 2 0 T T C...

Страница 22: ...de you must select RTD 4 wire as the sensor type and then connect the Sensor and Remote Sensor at one side of the RTD and Sensor and Remote Sensor to the other side of the RTD Make these connections a...

Страница 23: ...pectively but can be adjusted to change the sensor measurement The calibrated measurement is computed as follows User calibrated reading slope reading offset The offset is kilo ohms k for thermistors...

Страница 24: ...and 280 Series LaserMounts When using the TECPak with mounts that require a fan no additional external power supply is needed but a cable with appropriate wiring for the fan such as the 1260B or 1262...

Страница 25: ...o defined and many applications can achieve acceptable performance with these predefined gain settings eliminating the need to understand and adjust the PID loop The predefined gains are numbered 1 th...

Страница 26: ...sults AutoTune only functions in temperature mode PID parameters must be manually determined for R mode Make sure the current and temperature limits are set prior to starting AutoTune AutoTune will in...

Страница 27: ...voltage measurement to display an accurate TEC voltage measurement The safest method of calculating cable resistance is to short the ITE and ITE connections making sure whatever you are using to shor...

Страница 28: ...ent When this input transitions from off to on then the TEC output is turned on and begins controlling to the temperature set point Similarly when it transitions from on to off the output is turned of...

Страница 29: ...is changed or a disturbance causes the actual temperature to fall outside the tolerance temperature then this logic level output will be set to false and the process starts over The output will also b...

Страница 30: ...TE set point using a voltage signal The analog input function must be enabled with the TEC ANALOG MODE command and the instrument set to ITE mode When in this configuration the ITE set point is ignore...

Страница 31: ...mistors or 1mA for RTDs Once the resistance is known then the temperature can be calculated using the appropriate equation discussed in the thermistor and RTD sections above If you wish to make a high...

Страница 32: ...s or buffers unless your application requires it The logic level interfaces are all high impedance as is the Analog Set Point Input The Analog Monitor Output is an op amp driven through a 1k resistor...

Страница 33: ...hr C 4 0 01 Measurement Channels Current Resolution mA 10 Accuracy reading mA 0 30 Voltage Resolution mV 10 Accuracy reading mV 0 50 Sensor 10 A Thermistor Range k 0 1 450 Resolution 10 Accuracy readi...

Страница 34: ...n mA 10 Accuracy mA 50 Other Fan Supply 4 8 5V 350mA max TEC Connector Female DB 15 Computer Interface USB 2 0 Full Speed Type B RS 232 DB 9 male Power 90 240 V 50 60 Hz 50W 85W Size H x W x D inches...

Страница 35: ...a type When trying to parse the message the data was in an invalid format USB Serial only E 204 Suffix not valid An invalid number base suffix radix was encountered when parsing a number USB Serial on...

Страница 36: ...pted to select a non TEC channel E 434 Ite limit exceeds cable rating The cable plugged into the unit is not rated to carry the current as set by the current limit Use a 1262 cable 1262 cable or custo...

Страница 37: ...m metric fuses as replacements If after replacing the fuse it continues to blow immediately discontinue use of the instrument and contact service for support Service Service and repair for the TECPak...

Страница 38: ...airs will be made and the instrument returned freight prepaid Repaired products are warranted for the balance of the original warranty period or 90 days whichever first occurs Limitation of Warranty T...

Страница 39: ...10 Electrical Equipment for Measurement Control and Laboratory Use Safety Requirements This Certificate is the Manufacturer s Declaration which states that the 6300 Series ComboSource Laser Diode Cont...

Страница 40: ...Page 40 TECPak User s Manual Copyright 2019 Arroyo Instruments All Rights Reserved P N 530 1017 Rev G...

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