Ashcroft ATE-100 Operating Manual
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Ashcroft ATE-100 Operating Manual

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ATE-100
HAND HELD
CALIBRATOR
OPERATING
MANUAL
REVISION 4.6 3/2004
I&M002-10037-11/00 (AHHC-MAN)

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Summary of Contents for Ashcroft ATE-100

  • Page 1 ATE-100 HAND HELD CALIBRATOR OPERATING MANUAL REVISION 4.6 3/2004 I&M002-10037-11/00 (AHHC-MAN)
  • Page 2 Should you require service for this instrument or wish to take advantage of our expert factory recalibration services, please contact the factory for return information: Ashcroft Inc. 250 E. Main Street Stratford, CT 06614-5145 Tel: (203) 378-8281...

  • Page 3: Table Of Contents

    Table of Contents Section Description Page ..........................Introduction Base Unit Overview ......................Quick Select Module Overview ..................1.4.1 The GQS-1 Quick Select Pressure Module ..............1.4.2 The GQS-2 Quick Select Pressure Module ............... 1.4.3 The GQS-RT1 Quick Select RTD Temperature Interface Module ......1.4.4 The GQS-TC1 Quick Select Thermocouple Interface Module ........
  • Page 4 Section Description Page 12.0 Damping Function ........................12.1 Set Up of Damping Function ..................12.2 Activating or Discontinuing Damping ........................................13.0 Percent Function 13.1 Set Up of Percent Function ..................... 13.2 Use of Percent Function ..............................14.0 Flow Velocity and Flow Volume Measurement Background 14.1 Set Up for Flow Velocity &...
  • Page 5 Section Description Page ....................... 21.0 Dual Module Functions 21.1 Accuracy of Dual Module Measurements ............... 21.2 Setting Up Dual Module Differential Pressure Measurement ......... 21.3 Setting Up a Dual Module Summation Pressure Measurement ........22.0 Data Logging Function (Optional) .................... 22.1 Sequential Data Logging Function (Optional) ..............

  • Page 6: Introduction

    Section 1.0 Introduction units can be independently selected from the library of twelve factory programmed or one operator designated Congratulations! Your purchase of the Hand Held Cali- engineering unit. Temperature measurement data can brator (HHC) calibration system equips you to perform a be displayed in degrees Celsius, Fahrenheit, Kelvin or wide variety of pressure and temperature measurements.

  • Page 7: The Gqs-1 Quick Select Pressure Module

    in the Quick Select module. As such, any Quick Select micro-machined piezoresistive strain gauge sensor. This module can be used in any base unit and the measure- technology takes advantage of the fact that, when put ment system will provide measurement accuracy in under stress, (as with the flexing of a diaphragm under conformance with the published specification.

  • Page 8: The Gqs-Tc1 Quick Select Thermocouple Interface Module

    programmed into the GQS-RT unit to provide enhanced Section 3.0 System Start-Up General accuracy. Each GQS-RT interface module can accom- Instructions modate up to 8 different programmed RTD calibration The HHC can perform a wide variety of simple and curves. Programming of the RT module is accomplished complex temperature and pressure based measurement, via an optional software package and any PC compat- test and calibration operations.

  • Page 9: Installation Of Quick Select Modules

    opening, starting closest to the battery compartment and base unit should contain a Quick Select module reattaching Velcro. The strap may be adjusted in this to protect from dirt or other debris getting into fashion to provide for proper strap length to accommo- the base unit assembly.

  • Page 10: Optional System Start Up Procedures

    where: Quick Select pressure module(s) to be used to the pres- sure source to be measured. If a gauge pressure mea- xx = the range of the installed module engineering unit surement is to be made using a differential Quick Select is the default engineering unit for the module installed in pressure module be sure to connect the pressure to be the left bay...

  • Page 11: Set Up For Battery Charge Level Indication

    BatFunc PerCent UserEng H2Oref Step 2 With the HHC on and reading pressure press the With “BatFunc” flashing press the enter key. Step 3 battery check key, designated BAT CK. Using the up/down arrow keys to select Auto Step 4 Shut off.

  • Page 12: Low Battery Icon

    battery voltage level when the BATCHK key is pressed. DateTime will flash on the display when selected. Owner Alarm Section 3.4.3 Low Battery Icon DateTime RS232 The HHC provides advanced warning of a low battery condition. The icon, which looks like a miniature battery With the words “DateTime”...

  • Page 13: Input Of Owner/Operator Information

    initial setup or when the lithium battery used to back up information. the RAM needs replacement (every 1-2 years depending Step 6 With the proper access code displayed press the on the environmental conditions under which the HHC enter key. is used).

  • Page 14: Removing Quick Select Modules

    been entered and is displayed press the enter key. Designation Function On/Off Turn unit on and off. Set Up Provides access to set up functions for The HHC will respond: various on-board firmware functions/ JOHN Q OPERATOR capabilities Ent=OK CE=Cancel PORT SEL Used to select displayed measure-ment To store the owner/user information displayed...

  • Page 15: Port Select Function

    Designation Function Complete details of each of the above outlined capabili- ties is included in the section referenced after the func- DATA STORE Provides ability to store measured tion summary provided above. pressure or temperature values. (See Section 22.0 for details.) Section 5.0 Port Select Function HOLD...

  • Page 16: Zero Function

    the display returning to a readout mode featuring the measurement data from both of the installed modules. +00000 +1234 As seen below: To resume the display of pressure measurement Step 3 data, for the pressure module not zeroed, press the port +72.35 +123456 select key the required number of times (one or two) to...

  • Page 17: Engineering Unit Selection

    Result from pressing mA/V key a second time: The engineering unit abbreviations correspond to the following engineering units: volts +123456 +1.234 psi: pounds per square inch inHg: inches of mercury Result from pressing mA/V key a third time: inH2O: inches of water column* ftSW: feet of sea water +123456 +1.234...

  • Page 18: Using A Custom (User Defined) Engineering Unit

    the steps below. down arrow keys to increment or decrement through the alphabet/numerical values and the left and right arrows Step 1 With the HHC on and reading pressure press the to move the active entry field (cursor) to the next loca- key designated SET UP.

  • Page 19: Display Of Two Different Engineering Units, For Two Installed Modules

    Step 1 With the HHC on and measuring pressure press UNIT the engineering unit key. Designated EnG UnIT on the keypad. Step 2 Using the arrow keys select either of the two desired engineering units. For this example we will UNIT select psi as one of the desired units.

  • Page 20: Temperature Selection For H2O Conversion Factor

    The HHC will respond by displaying: most commonly used by manufacturers of pressure instruments when calibrating pressure measurement inHg inWC ftSW devices in terms of the height of a column of water. To mBar facilitate your calibration and test of these instruments, the HHC includes 3 conversion factors for each of the Using the arrow keys select the desired engineering unit water column based pressure engineering units.

  • Page 21: Tare Function

    Section 9.0 Tare Function Warning: Failure to enter the zero (0) will result in the HHC automatically accepting the last displayed value as The HHC has the ability to tare (subtract an operator the desired tare value. selected value) from the displayed pressure or tempera- Right tare value ture measurement value of either one or two installed +12345...

  • Page 22: Minimum And Maximum Value Tracking

    Step 2 To exit the hold function press any key. not activated the HHC takes a new pressure value every 130 to 240mS (~8 times per second) and updates the Note: While in the hold mode, if the RS232 interface is display.

  • Page 23: Activating Or Discontinuing Damping

    down results from the fact that an averaged value will be Section 13.0 Percent Function displayed. If the damping level is set to 16 the displayed The percent function allows the calibrator to display the value will represent the average pressure measurement output from a device under test in terms of percent error over the previous ~2 seconds (16 readings times 130 at a given percentage of the total range.

  • Page 24: Use Of Percent Function

    Step 7 With the desired output “zero” keyed in and displayed press the enter key. The HHC will respond by displaying: Enter Input Zero .000000 The HHC will respond by displaying: Enter output FS Using the number keys enter the lowest calibra- Step 4 0.0000 tion point for the device to be tested.

  • Page 25: Flow Velocity And Flow Volume Measurement Background

    of operation. = the absolute pressure in duct in psia T = air temperature in duct in degrees Fahrenheit Flow Volume = (velocity x duct area)/144 Connect the output lines from the device under Step 2 Purchase of a characterized and certified pitot tube 2 –...

  • Page 26: Engineering Unit Selection For Flow Velocity

    Step 3 With the word Velocity flashing press the These are the 4 units of measure available for display of enter key: flow velocity. Step 2 Using the left/right and up/down arrow keys select the desired unit of measure. When selected the The HHC will respond by displaying: unit of measure will flash.

  • Page 27: Engineering Unit Selection For Flow Volume

    W = width of the duct in inches Step 3 With the desired unit of measure flashing, press H = height of the duct in inches the enter key. For round ducts: π area (square inches) = ( /4 )D After pressing the enter key the HHC will resume mea- suring flow volume in the selected unit of measure.

  • Page 28: Simultaneous Display Of Flow (Velocity Or Volume) With A Pressure Measurement

    MeterSec Step 4 next, press the port select to deactivate the +12345 +1234 display of flow measurement data on the side that you wish to maintain displayed measurement data in terms of ft/min. A pressure display is deactivated when it is replaced by a milliamp (mA), Voltage (V) or a Reactivate the right side of the display for Step 8 blank (------).

  • Page 29: Simultaneous Display Of Flow (Velocity Or Volume) With A Temperature Measurement

    UnIT key. Details on engineering unit selection are Quick Select module. For example, the measurement of provided in Section 8.0 of this manual. flow can be displayed in ft/min for one installed Quick Select pressure module and the second installed pres- Important Note: The HHC must be set up for pressure sure module can be used to simultaneously display the...

  • Page 30: Simultaneous Display Of Flow (Velocity Or Volume) And An Electrical Output Measurement

    module. This ability eliminates the need for “on-the-fly” Step 4 Using the left/right arrow keys select the change between flow volume and flow velocity measure- desired measurement function. ment functions when doing airflow testing. In this case we have decided that the left side of the dis- To set the HHC up to present simultaneous display of play will remain in the velocity mode and the right side flow velocity and flow volume follow the steps below.

  • Page 31: Leak Detection Function

    measurement (velocity or volume) mode of operation. leak rate mode the HHC will monitor the pressure vessel Refer to Section 14.2 for information on setting up the over the programmed time interval and display the leak HHC for velocity measurement or Section 14.4 for infor- rate in terms of cc/seconds.

  • Page 32: Pressure Decay Function Set Up

    Step 9 Using the number keys enter the time inter- Step 8 With the desired test interval displayed press val, in seconds, over which the leak rate test is to be the enter key. performed. The time interval may be from 1 to 65,000 seconds.

  • Page 33: Temperature Measurement Using Rtd Probes

    of the HHC. --- “ on the other side of the display. If a second module is installed in the other sensor bay it can be re-selected LEAK using the port select function (PORT SEL) as detailed in The HHC will display: Section 5.0.
  • Page 34 made in degrees Celsius. Engnring units: To access the temperature setup menu press the Step 4 Set up key. Step 11 With the desired engineering unit selected and SET UP flashing press the enter key. Step 5 Use the downward pointing arrow to access the following selection screen The calibrator will respond with the following display: Calib RTmodule...

  • Page 35: Calibrating And Programming Of The Rtd Interface And Probe

    Probe: 12345678 Resolution: P&a385 RO = 100 0.001 With the desired probe type selected and flash- With the desired resolution selected and flash- Step 13 Step 15 ing press the enter key. ing press the enter key. The calibrator will respond by displaying the following: The calibrator will briefly show internal limit settings and will then commence temperature measurement.

  • Page 36: Setting Up Calibrator For Use With Thermocouple Detector

    the millivolt mode has been selected, the programming Section 17.1 Thermocouple Measurement Set Up cycle will end when the “enter” key is pressed, and the Step 1 To begin measurement with a thermocouple, calibrator will begin to display the real-time millivolt first attatch the thermocouple to a male “miniature ther- measurement from the thermocouple circuit.

  • Page 37: Pressure And Temperature Switch Testing

    deactivate (convert the display to mA, “------” or Volts) the reading from the other module bay, if a module or an the other side of the display. interface module has been installed. PORT If the “manual” mode was selected, the calibrator must be programmed with the reference temperature of the external reference junction.

  • Page 38: Deadband Testing

    change of state has been detected. When the switch has Step 3 With the word “Deadband” flashing press the tripped the HHC will display: enter key. Eng Unit Tripped +12345 +vvvvv Step 4 Gradually increase or decrease, as required, pressure, vacuum or temperature until the display of the where: HHC indicates that a change of state has been detected.

  • Page 39: Rs232 Interface

    Disable Manual Data transfer ready Deadband Relay 1 normally open (for alarm option) Relay 2 common (for alarm option) With the word “Disable” flashing press the Step 11 Relay 2 normally open (for alarm option) enter key. Section 19.1 Configuring RS232 Interface for Use with a Dumb Terminal The switch deadband test operation has now been termi- To communicate with the HHC through the use of a...

  • Page 40: Rs232 - Inquiry Mode Functional Overview

    Owner Alarm +0.003 in.H +0.0000 psi DateTime RS232 Left Min: +0.0033 Max: +0.0035 Right Min: +0.0000 Max: +0.0000 With the text RS232 flashing press the enter key. Step 3 Each data set consists of three (3) lines. The first line displays the current measurement data as seen on the instrument display.

  • Page 41: Rs232 Set Up For Inquiry Mode Operation

    Disable ISO1745 sion of data during the setup process. For most functions Journal Inquiry data transmission will resume when the set up is com- plete. However, the RS232 interface must be re-enabled With the word Journal flashing press the Step 10 via the RS232 set up process to re-initiate data transmis- enter key.
  • Page 42 Disable ISO1745 move through the menu selection and highlight the text Journal Inquiry “RS232” so that is flashes on the display. Owner Alarm With the word Inquiry flashing press the Step 11 Date Time RS232 enter key. Step 3 With the text “RS232” flashing press the enter key. The HHC will respond by displaying the following: Inquiry Char.

  • Page 43: Status

    sion of data during the setup process. For most functions where: data transmission will resume when the set up is com- dd/dd/dd: the date of the last calibration of the left module. plete. However, the RS232 interface must be re-enabled Type: provides information on the type of Quick Select in the RS232 set up process to re-initiate data transmis- pressure module.

  • Page 44: Dual Module Functions

    2 – The percent life remaining is based on the character- capability is provided in Section 21.2 entitled Dual istics of standard 9 Vdc alkaline batteries. Use of other Sensor Differential Pressure Measurement. batteries types, such as; zinc, lithium or rechargeable 2 –...
  • Page 45 Step 2 With the modules installed, turn the calibrator When the dual sensor differential firmware is active the on by pressing the on/off key. following measurement sequence will result from press- ing the PORT SELECT (PORT SEL) key. First press of the port select key: L-R PSI With the calibrator on and displaying pressure Step 3...

  • Page 46: Setting Up A Dual Module Summation Pressure Measurement

    Section 21.3 Setting Up Dual Module Summation tion press the port select key one time after the set up Pressure Measurement has been complete. The calibrator will display the fol- lowing text Step 1 With the calibrator off, install the two Quick L+R PSI PSI Select pressure modules in the calibrator.

  • Page 47: Data Logging Function (Optional)

    the L+R indication will be not be present on the display. When used in conjunction with the Event Timer function The display is limited to 16 characters/line and cannot (see Section 24) the HHC system can be set up to take display both the L+R and a U_XXXXXX engineering data during a selected future time period at an operator unit label.

  • Page 48: Labeling Function - Standard Data Logging Mode

    Section 22.4 Automatic Data Logging – Section 22.3 Labeling Function – Standard Data Standard Data Logging Mode Logging Mode The automatic data logging function allows for the The label option allows the input of an alphanumeric automatic, unattended logging of measurement data. The label of up to 16 characters in length.

  • Page 49: Manual Data Logging - Standard Data Logging Mode

    Select pressure modules to be monitored and logged. Section 22.5 Manual Data Logging – Standard Data Logging Mode Readings to Log None Left Rght Both Follow the procedure below to conduct manual, operator controlled, data logging. In this example we have opted to log the output from With the HHC system on and reading pressure Step 1 both Quick Select pressure modules.

  • Page 50: Review Of Stored Data - On Instrument Display

    desired storage format. The desired format will flash on press the data log key on the keypad. the display when selected. DATA Date/Time Stamp Disable Enable The HHC system will respond by displaying the follow- In this example we have opted to forego the date/time ing: stamp of the stored data values.

  • Page 51: Erasing Of Selected Stored Data - Standard Data Logging Mode

    > brings the next highest stored address Step 3 With the word review flashing press the enter key. value to the display. skips 10 stored values in increasing address direction. Data points may be browsed through by using Step 4 skips 10 stored values in decreasing the keys as indicated below: address direction.

  • Page 52: Certification Generation Enhanced Data Logging Mode

    Step 2 Using the up/down and right/left arrows browse Section 23.1 Set Up and Use of Certification through the data log menu and locate the word “Erase”. Generation Data Logging Mode The menu line with the word Erase appears as: Step 1 With the HHC on and displaying measurement Label...
  • Page 53 Step 3 Using the arrow keys, highlight the text “CertGen Use the up and down arrow keys to enter letters and or to proceed with the certification generation process ”. numbers to define an instrument tag name. The entry/ selection sequence is as follows: CertGen Exit Erase Up/down arrows provide access as follows:...
  • Page 54 The HHC will respond by prompting the operator to operation. enter the number of “as found” data points to be taken. Step 10 Prior to beginning the collection of data the A data point consists of the pressure measurement as HHC should be set up to display the information to be read on the calibrator and the current or voltage output logged in the HHC’s memory.
  • Page 55 DATA Step 15 STORE Note : If the HHC has an GQS-RT or TC temperature module and the probe is installed it will automatically After the last set of data to be logged has been stored the offer the opportunity to store the measured tempera- HHC will prompt the operator with the following display.
  • Page 56 ment being added to the calibration record for the device STORE under test: After the last set of data to be logged has been stored the “Use AF for AL” HHC will prompt the operator with the following display. AsLeft readings Step 18 To take “As Left”...

  • Page 57: Hhc System Set Up For Uploading Stored Data Into An Ibm Compatible Pc

    Note : If the HHC has a GQS-RT or GQS-TC1 tempera- new Tag: will result in initiating a new calibration ture module installed, it will automatically offer the certification process. opportunity to store the measured value the base unit is Previous Tag: will allow the review of data previ- receiving from the RTD or thermocouple.

  • Page 58: Installing And Operating Upload Software

    Step 9 With the desired baud rate flashing press the Follow the procedures below to change the battery back enter key. up unit. Note: The HHC system should be turned off prior to initiating battery replacement procedure. The HHC system will respond by displaying: Turn the HHC indicator bottom side up and Step 1 Disable ISO1745...

  • Page 59: Event Timer Set Up

    HHMMSS Stop isfy this requirement. XXXXXX Delayed initiation of unattended measurement activities both requires the set up of the Event Timer and data Enter the desired stop time using the number Step 6 logging function. keys. When properly entered a stop time of 11:30 PM will look as follows: Section 25.1 Event Timer Set-Up...

  • Page 60: Alarm Function - Overview (Optional Feature)

    Enter Interval age format. The desired format will flash on the display sec. xxxxxx when selected. Date/Time Stamp Using the number keys enter the desired time Step 4 Disable Enable interval in seconds. The interval may be from 0.1 sec- onds to 65,000 seconds.

  • Page 61: Alarm Set Up

    High Setpoint ???????? Important Note: Set points must be entered for the spe- cific engineering unit to be monitored. For example if a setpoint of 10 is entered the alarm relay will trip when measured and displayed pressure exceeds the numerical value of 10.

  • Page 62: Recertification Of The Calibrator

    Section 27.0 Recertification of the Calibrator Section 27.3 As Received Readings of the Base Unit Electronics Both the base unit and the pressure modules can be recalibrated and recertified in the field. The base unit Please note. The following convention is used when includes a firmware based, menu driven procedure that referring to modules or module bays in this procedure.
  • Page 63 accompanied the product shipment from the factory. connections for the input of the voltage standard to the See section 27.0 “Access Code” for information on lost calibrator base unit. passwords. Step 12 To check the measured voltage using a preci- ±...

  • Page 64: Adjustment/Calibration Base Unit Electronics

    To apply the 0.1 Vdc signal use the same procedure as vided with the calibrator base unit: outlined in steps 10 and 11 of this section. Access code? 12345 Step 15 The value displayed under the dashed line rep- resents the as received reading for the .1 Vdc measure- With the correct access code displayed press Step 7 ment.
  • Page 65 After the calibrator completes auto-adjusting the mea- sured value it will display: Apply 10.0000V to volts jack Pin 6 Step 14 Using a precision voltage generator apply a 10.0000 volt (±500 microvolts) input to the miniature recessed banana jacks. Use the COM and V jacks on the Pin 7 calibrator keypad.

  • Page 66: Recertification Of Quick Select Pressure Modules

    Calibration done of the calibrator system is not degraded by the calibra- Save Cancel tion process. As recommended by standards organiza- tions such as A.S.M.E., n.I.S.T and various U.S. and Using the left/right arrow keys select “Save” to Step 20 world government agencies calibration standards should write the new data to the EEPROM calibration storage.
  • Page 67 Step 8 Enter the 5 digit calibration access code pro- Select pressure module and the flashing word “working” vided with the calibrator base unit. indicates that the calibrator is making the internal adjust- ments necessary for the recalibration. Access code ? 12345 After approximately 3 seconds the calibrator will dis- play:...
  • Page 68 Linearity Cal linearization mode. The zero and span values established in these procedures will be used for the zero and span values of the new calibration data. If zero and span are Step 18 If calibration activity is to be limited to zero and not reset at this time the recalibration will use the values span, using the arrow keys select the word no (when for zero and span stored in memory from the previous...
  • Page 69 Calibration done Step 31 With the applied pressure displayed press the Save Cancel enter key. Step 36 To save the new linearization data to memory, thereby overwriting the previously stored values in the The calibrator will respond by displaying: EEPROM, select “Save” and press enter. To discard the +xxxxx working newly generated calibration information select “Cancel”...

  • Page 70: Appendix A - Pressure Conversion Factors

    APPEnDIX A. – PRESSURE COnVERSIOn FACTORS COnVERSIOn FACTORS FOR UnITS OF PRESSURE  - 70- Revision 4.6 3/2004...

  • Page 71: Appendix B - Ascii Character Set

    APPEnDIX B – ASCII CHARACTER CODE This chart shows the ASCII character set and corresponding code numbers in decimal, hexadecimal and binary form Hexa- ASCII Hexa- ASCII Decimal Binary decimal Character Decimal Binary decimal Character 00000000 (nUL) 00111000 00000001 (SOH) 00111001 00000010 (SRX)
  • Page 72 Hexa- ASCII Hexa- ASCII Decimal Binary decimal Character Decimal Binary decimal Character 10101000 01110000 10101901 01110001 10101010 01110010 10101011 01110011 10101100 01110100 10101101 01110101 10101110 01110110 10101111 01110111 01111000 01111001 01111010 01111011 01111100 01111101 01111110 01111111 (DEL) 10000000 10000001 10000010 10000011 10000100 10000101...
  • Page 73 Hexa- ASCII Hexa- ASCII Decimal Binary decimal Character Decimal Binary decimal Character 10110000 11011111 10110001 11100000 10110010 11100001 10110011 11100010 10110100 11100011 10110101 11100100 10110110 11100101 10110111 11100110 10111000 11100111 10111001 11101000 10111010 11101001 10111011 11101010 10111100 11101011 10111101 11101100 10111110 11101101 10111111...

  • Page 74: Appendix C - Product Specifications

    APPENDIX C - PRODUCT SPECIFICATIONS* BASE UNIT PHYSICAL SPECIFICATIONS PRESSURE SENSOR MODULE SPECIFICATIONS British standard British standard with flush port Dimensions GQS-1 (ranges 10 psi and over) 7.88 in. (L) x 4.24 in. (W) x 3.25 in. (H) Pressure Types Welded VCR fitting with standard Weight Gauge, differential &...
  • Page 75 PRODUCT SPECIFICATIONS* STANDARD RANGES DIMENSIONS GQS-2 GQS-1 3.25 ˝H 4.24 .43/.58 (gauge and (gauge/ Other Engineering Units** absolute differential pressure) pressure) 0.25* in. H 0.5* in. Hg 1.0* ftSW 2.0* 3.0* PTE-1 mBar 5.0* mmHg 7.88 100* kg/cm 150* User Selectable 200* **Note: Engineering units identified above are accessible through the unit select feature.

  • Page 76: Table Ii

    SYSTEM ACCURACY WITH GQS-TC1 THERMOCOUPLE InTERFACE TABLE I System Accuracy (reading in temperature units): Includes the HHC base unit and GQS-TC1 interface module. (Does not include inaccuracy of the thermocouple device. Consult thermocouple manufacturer or ISA MC96.1 for thermocouple accuracy specifications. Typical inaccuracies range from ±1 to ±2.2°C.) Max.

  • Page 77: Appendix D - Rtd Probe Connector

    APPEnDIX D RTD PROBE CONNECTOR SWITCHCRAFT TINI QG (TA4F) FUNCTION 4W– 2W– 2 WIRE RTD TA4F 3 WIRE RTD TA4F 4 WIRE RTD TA4F - 77 - Revision 4.6 3/2004...

  • Page 78: Appendix E - Certification Of The Tc1 Thermocouple Interface Module

    APPEnDIX E Certification of the TC1 Thermocouple Interface Module ThEORy With the TC1 module installed in the base unit (set-up to display in mV), a precision millivolt calibrator/supply will apply a known mV signal to the module/base unit system (simulating the Seebeck voltage) in place of a thermocouple. The applied mV signal can then be read on the base unit display and compared to the nominal input provided by the precision millivolt calibrator/supply.
  • Page 79 - 79 - Revision 4.6 3/2004...
  • Page 80 Visit our web site www.ashcroft.com Ashcroft Inc. 250 E. Main Street All specifications are subject to change without notice. Stratford, CT 06614-5145 All sales subject to standard terms and conditions. Tel: (203) 378-8281 © Ashcroft Inc. 7/01 Fax: (203) 385-0357 I&M002-10037-11/00 (AHHC-MAN) .5CDPS3/04 1P6/00...

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