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Altek TechChek Model 830 Manual

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    							19 18
    READ FUNCTIONS
    Select read by pressing the DISPLAY/SOURCE/READ pushbut-
    ton until  the word READ appears on the LCD display. The READ
    functions measure the desired signal. Multiple scales are avail-
    able for some functions. 
    MIN/MAX
    To read the Maximum or Minimum INPUT
    since READ mode was entered, simply
    switch to MAX or MIN. The value will
    appear on the LCD along with the word
    MAX or MIN. The MAX/MIN values are
    automatically updated and may be viewed
    at any time without interrupting the other
    values. 
    RESTARTING MIN/MAX
    Pressing the STORE/RESET push-button
    will cause the 830 to store the present
    reading into the MAX and MIN memories.
    Upon releasing the STORE/RESET push-
    button the 830 will resume reading the input
    and update the MAX & MIN values as the
    measured signal changes.
    OUT OF RANGE SIGNALS
    Signals above or below those available for
    the currently selected range will be indicat-
    ed by OVER and UNDER on the display.
    OPERATING INSTRUCTIONS
    READMIN READMAXSTORE
    RESETOVER
    UNDER
    CALIBRATE FREQUENCY INPUTS
    Choose this function to provide pulses into frequency measuring
    instruments. The 830 output is a zero crossing square wave from
    -1V to +5V amplitude. Available ranges are from 0.01 to 10.00
    kHz, 1 to 1000 Hz and from 1 to 1000 CPM (Counts-Per-Minute).
    CPM is used to simulate extremely slow frequency signals with
    greater resolution. For example, 10 Hz is equivalent to 600 CPM.
    To convert from CPM to Hz Divide by 60. To convert from Hz to
    CPM multiply by 60.
    1) Disconnect one or both input wires from the device to be
    calibrated
    2) Turn the Selector Knob to FREQ
    3) Press the DISPLAY/SOURCE/READ push-button until SOURCE
    and KHz, Hz or CPM appear on the display
    4) Press the TYPE/ENG UNITS pushbuuton to select between KHz,
    Hz or CPM on the display
    5) Connect the red SOURCE lead of the calibrator to the plus (+)
    input of the device and the black SOURCE lead to the minus (-).
    Output frequency is continuously adjustable with the QUIK-
    CHEK switch in the SET position. Zero & Span (or any other
    values) are available by using the LO and HI QUIK-CHEKsOPERATING INSTRUCTIONS
    REDBLACK
    Frequenc
    y Receiver Input
    Flowmeter
    Controller
    Transmitter
    Computer
    Logger
    DCS 
    						
    							21 20
    READ DC and AC VOLTAGE OUTPUTS
    mV, V, Vhi and Vac
    Choose this function to measure from 0.00 to 110.00 millivolts (mV),
    0.00 to 10.25 DC Volts (V). Use the high voltage connection to read
    from 0.0 to 200.0 VDC (Vhi). See the next page for Volts AC.
    1) Turn the Selector Knob to V
    3) Press the DISPLAY/SOURCE/READ push-button until READ
    appears on the display
    4) Press the TYPE/ENG UNITS push-button to select mV, V, Vhi or
    VAC on the display
    5) Connect the red READ (+) lead and the black READ (-) lead of
    the calibrator across the voltage to be measured.
    Signals above or below those available for the currently selected
    range will be indicated by OVER and UNDER on the display.OPERATING INSTRUCTIONS
    REDBLACK
    DC VoltageOutput Signal
    Controller
    Transmitter
    Power Supply
    REDBLACK
    VoltageOutput Signal
    Power Supply
    Loop Voltage
    Connection for millivolts(mV) and Volts below 10.25 VDC (V)
    Connection for DC Volts to 200.0 (vhi)
    READ MILLIAMP OUTPUTS
    mA, mA % (Percent of 4 to 20 mA), DP% (DP Flow)
    Choose this function to measure from 0.00 to +24.00 milliamps. 
    1) Open the current loop at any convenient point along the signal
    path
    2) Turn the Selector Knob to mA
    3) Press the DISPLAY/SOURCE/READ push-button until READ
    appears on the display
    4) Press the mA/%/% DP FLOW push-button to display mA, % 4-20
    or % DP Flow.
    5) Connect the red READ (+) lead of the calibrator to the more
    positive point of the break and the black READ lead (-) to the
    more negative
    Display the present reading, Maximum or Minimum by moving the
    toggle switch from READ to MAX or MIN. If TechChek 830 is
    connected in the wrong polarity, the word POL will flash on the
    display. Simply reverse the leads for correct indication.
    OPERATING INSTRUCTIONS
    Milliamp Output Signal
    Controller
    Transmitter
    P/I
    DCS
    BLACKRED 
    						
    							23 22
    MEASURE  THERMOCOUPLE SENSORS
    Choose this function to read a thermocouple. The input of the
    TechChek 830 is automatically cold junction compensated.
    1) Disconnect the thermocouple from any instrument.
    2) Turn the Selector Knob to T/C
    3) Press the DISPLAY/SOURCE/READ push-button until READ
    and any T/C TYPE appear on the display
    4) Use the proper thermocouple wire and corresponding miniature
    T/C connector to connect TechChek 830 to the thermocouple.
    To Change the Thermocouple type
    1) Press the TYPE/ENG UNITS push-button. The words SELECT
    T/C TYPE and the current selection appear on the display.
    until the desired T/C type and temperature scale appear.
    2) Turn the digital pot (knob) until the required type appears on
    the display.
    3) Press the STORE/RESET push-button or wait 5 seconds to
    store the selectionOPERATING INSTRUCTIONS
    +-
    READ AC VOLTAGES
    Choose this function to measure from 0.0 to 250.0 V True RMS.
    1) Turn the Selector Knob to V
    3) Press the DISPLAY/SOURCE/READ push-button until READ
    appears on the display
    4) Press the TYPE/ENG UNITS pushbuuton to select VAC on the
    display
    5) Connect the red READ (+) lead and the black READ (-) lead of
    the calibrator across the voltage to be measured.
    Signals above or below those available for the currently selected
    range will be indicated by OVER and UNDER on the display.
    CAUTION: Care should be used when measuring AC voltage.
    The included safety test probes or safety alligator clips  should be
    used. Do not exceed voltage limits shown on calibrator.
    REDBLACK
    AC Volta
    ge Signal
    Mains
    Line Voltage
    OPERATING INSTRUCTIONS 
    						
    							25 24
    CHECK CONTINUITY
    Choose this function to check continuity. A tone will sound and a
    sound symbol will appear on the display when the resistance
    between the leads is less than 100 Ohms.
    1) Plug the leads into the TechChek 830 as shown below.
    2) Turn the Selector Knob to Ω
    3) Press the DISPLAY/SOURCE/READ push-button until READ or
    CONTINUITY appears on the display
    4) Press the TYPE/ENG UNITS pushbuuton once to switch
    between READ and CONTINUITY on the display
    OPERATING INSTRUCTIONS
    REDBLACK
    READ RESISTANCE
    Ohms
    Choose this function to measure resistance from 0.0 to 1000.0
    Ohms.
    1) Disconnect one or both input wires from the device to be
    calibrated
    2) Turn the Selector Knob to Ω
    3) Press the DISPLAY/SOURCE/READ push-button until READ or
    CONTINUITY appears on the display
    4) Press the TYPE/ENG UNITS push-button once to switch
    between READ and CONTINUITY on the display
    5) Connect the red READ (+) lead and the black READ (-) lead of
    the calibrator across the resistance to be measured.
    Signals above or below those available for the currently select-
    ed range will be indicated by OVER and UNDER on the display.
    OPERATING INSTRUCTIONS
    REDBLACK
    Receiver InputOhms or 2-W
    ire RTD
    Controller
    Transmitter
    Computer 
    						
    							27 26
    REDBLACK
    BLACK
    BLACK
    BLACK
    RED
    3
    2
    1RTD Element
    OPERATING INSTRUCTIONS
    MEASURE RTD SENSORS
    MEASURE RTD SENSORS
    Choose this function to read an RTD. Three wires must be use for
    both 2 and three wire RTDs.
    1) Disconnect the RTD from the instrument being calibrated.
    2) Turn the Selector Knob to RTD
    3) Press the DISPLAY/SOURCE/READ push-button until SOURCE
    and any RTD TYPE appear on the display
    4) Connect using 3 wires as in the diagrams on the opposite
    page. Use a 3 wire connection to read a 4 wire RTD (all four
    wires must be the same gauge). Spade lugs are recommend-
    ed to minimize any contact resistance.
    Output temperature is continuously adjustable with the QUIK-
    CHEK switch in the SET position. Zero & Span (or any other
    values) are available by using the LO and HI QUIK-CHEKs
    To Change the RTD type
    1) Press the TYPE/ENG UNITS push-button. The words SELECT
    RTD TYPE and the current selection appear on the display.
    2) Turn the digital pot (knob) until the required type appears on
    the display.
    3) Press the STORE/RESET push-button or wait 5 seconds to
    store the selection 
    OPERATING INSTRUCTIONS 
    						
    							29 28
    REDBLACK
    Frequenc
    y Output Signal
    Flowmeter
    Flow Sensor
    Variable Speed Drive
    Controller
    Transmitter
    REDBLACK
    Frequency Output Signal
    Flow Meter
    Line Frequency
    Variable Speed Drives
    Connection for signals with amplitudes below 10.25V RMSConnection for signals with amplitudes to 250 V RMS
    COUNT FREQUENCIES
    OPERATING INSTRUCTIONS
    COUNT FREQUENCIES
    Choose this function to use the 830 as a frequecny counter.
    Available ranges are from 0.01 to 10.00 kHz, 1 to 1000 Hz and
    from 1 to 1000 CPM (Counts-Per-Minute).
    To measure waveforms with amplitudes between 1 V and 10.25 V
    RMS use the low level inputs. Use the high voltage connection to
    read waveforms with amplitudes from 10.25 to 250.0 V RMS
    1) Disconnect one or both input wires from the device to be
    calibrated
    2) Turn the Selector Knob to FREQ
    3) Press the DISPLAY/SOURCE/READ push-button until READ
    and KHz, Hz or CPM appear on the display
    4) Press the TYPE/ENG UNITS push-button to select between KHz,
    Hz or CPM on the display
    5) Connect the red READ lead of the calibrator to the plus (+) input
    of the device and the black READ lead to the minus (-)
    OPERATING INSTRUCTIONS 
    						
    							31
    30
    OPERATING INSTRUCTIONS
    CALIBRATE TRANSMITTERS
    ANY SOURCE FUNCTION AND
    READ mA, READ %, READ DP%
    Choose this function to supply the input signal to the transmitter
    and displaying the 4-20 mA output of the transmitter (used with 4-
    Wire Transmitters). 
    ANY SOURCE FUNCTION AND
    P-XMTR mA, P-XMTR %, P-XMTR DP%
    Choose this function to simultaneously supply power to a 2-Wire
    transmitter while supply the input signal to the transmitter and
    display the 4-20 mA output of the transmitter. 
    1) Disconnect both the input and output wires from the 2-Wire
    Transmitter to be calibrated
    2) Turn the selector knob to set the output of the 830 to match the
    input of the transmitter (T/C, RTD, Freq, etc.). Select the
    proper type, range and temperature scale if applicable.
    3) Press the DISPLAY/SOURCE/READ push-button until READ
    or P-XMTR appears in the lower half of the display
    4) Press READ/POWER TRANSMITTER to switch between
    reading milliamps and supply voltage to power the transmitter 
    5) Connect the output of the 830 to the signal input of the transmit-
    ter (using the 1,2 & 4 connectors or the T/C connector on the 830)
    6) Connect the red POWER lead of the 830 (Connector 5) to the
    plus (+) output of the tranmitter and the black POWER lead
    (Connector 6) to the minus (-)
    The output is continuously adjustable with the QUIK-CHEK
    switch in the SET position. Zero & Span (or any other values) are
    available by using the LO and HI QUIK-CHEKs.
    The TechChek 830 supplies a nominal 24 Volts DC at 24 mA to the
    2-Wire transmitter. The current output of the transmitter will be
    accurately displayed by the 830. Calibrate the Transmitter in the
    usual manner and disconnect the 830.
    +IN-
    REFTypical
    2-Wire
    Transmitter
    OPERATING INSTRUCTIONSCALIBRATE 2-WIRE TRANSMITTERS
    (T/C / mA Shown)
    CALIBRATE 4-WIRE TRANSMITTERS
    +IN-
    REFTypical
    4-Wire
    Transmitter
    BLACKRED
    Loop
    Power Supply
    24 VDC 
    						
    							33 32
    Pressure
    Source
    PROCESS CALIBRATORSOURCE READQUIK-CHEK®
    HI
    SET
    LOMIN READMAX
    TYPE
    ENG UNITS °C / °F
    ZERO
    DISPLAY
    SOURCE READREAD/POWER
    TRANSMITTERPOWER
    STORE
    RESET
       mA  /  %
    % DP FLOW
    ΩRTD T/CVmAFREQPRESSURE
    READ PRESSURE
    Choose this function to measure pressure with a ModPak 91
    module holder and one of the many QuikCal 90 pressure modules. 
    1) Select the proper module for the pressure range of the process
    2) Place the QuikCal 90 Module in the ModPak 91 holder
    3) Plug the ModPak cable into the mating connector on the 830
    4) Turn the selector knob to PRESSURE
    5) The 830 will display – – – – – for up to 20 seconds while the
    module is powered up and verified
    6) The 830 will display the range of the module for three seconds
    7) Press the °C/°F/ZERO push-button to “Zero” the pressure
    reading
    Carefullyconnect the module to the pressure point to be
    measured.
    To Change the pressure engineering units
    1) Press the TYPE/ENG UNITS push-button. The words SELECT
    ENG. UNITS and the current selection appear on the display.
    2) Turn the digital pot (knob) until the required type appears on
    the display.
    3) Press the STORE/RESET push-button or wait 5 seconds to
    store the selection 
    OPERATING INSTRUCTIONS
    READ PRESSSURE
    WARNING! - SAFETY CONSIDERATIONS
    Sudden release of compressed or stored gas can cause personal
    injury. Always vent the system before making pressure connec-
    tions or disconnections. Exercise standard physical protection
    practices such as eye protection, gloves, protective clothing, etc.
    To prevent the potentially hazardous release into the atmosphere
    of substances introduced into the pneumatic system by the user,
    no relief valves are provided in the QuikCal 90 Pressure Module.
    Consequently, if a module is overpressurized, the sensor will be
    damaged.
    FITTING INSTALLATION
    All pneumatic connections to the QuikCal 90 Module are made via
    1/8”-27 NPT threads in the pressure port. Adapter fittings may be
    used for 1/4”-18, straight 10-32 threads or any other size fittings to
    match the field connections.
    To install a fitting in a module pressure port:
    1) Apply Teflon tape or pipe dope to the fitting threads (Teflon tape
    not recommended with stainless steel fittings)
    2) Carefully install the fitting in the pressure port on top of the
    module
    3) Use a 5/8” wrench to support the pressure module port and a
    second wrench to tighten the fitting
    4) Check for leaks
    OPERATING INSTRUCTIONS 
    						
    							35 34
    PROCESS CALIBRATOR
    TYPE
    ENG UNITS °C / °F
    ZERO
    DISPLAY
    SOURCE READREAD/POWER
    TRANSMITTERPOWER
    STORE
    RESET
       mA  /  %
    % DP FLOWSOURCE READ
    Ω
    QUIK-CHEK®
    RTD T/CVmA
    HI
    SET
    LOMIN READMAX
    FREQPRESSURE
    OPERATING INSTRUCTIONS
    CALIBRATE PRESSURE TRANSMITTERS
    READ PRESSURE AND
    P-XMTR mA, P-XMTR %, P-XMTR DP%
    Choose this function to simultaneously supply power to a 2-Wire
    pressure transmitter while supplying the input signal to the trans-
    mitter and displaying the 4-20 mA output of the transmitter. 
    1) Disconnect both the pressure input and output wires from the
    2-Wire Transmitter to be calibrated
    2) Select the proper module for the pressure range of the
    process
    3) Place the QuikCal 90 Module in the ModPak 91 holder
    4) Plug the ModPak cable into the mating connector on the 830
    5) Turn the selector knob to PRESSURE
    6) The 830 will display – – – – – for up to 20 seconds while the
    module is powered up and verified
    7) The 830 will display the range of the module for three seconds
    8) Press the °C/°F/ZERO push-button to “Zero” the pressure
    reading
    9) Press the DISPLAY/SOURCE/READ push-button until READ
    or P-XMTR appears in the lower half of the display
    10) Press READ/POWER TRANSMITTER to switch between
    reading milliamps and supply voltage to power the transmitter 
    11 )Carefullymake all pressure connections
    6) Connect the red POWER lead of the 830 (Connector 5) to the
    plus (+) output of the transmitter and the black POWER lead
    (Connector 6) to the minus (-)
    Use the hand pump or regulated pressure source to adjust the
    pressure
    The TechChek 830 supplies a nominal 24 Volts DC at 24 mA to the
    2-Wire transmitter. The current output of the transmitter will be
    accurately displayed by the 830. Calibrate the Transmitter in the
    usual manner and disconnect the 830. 
    						
    							37
    36
    SPECIFICATIONS
    POWER & MEASURE 2-WIRE TRANSMITTERS
    RANGES & ACCURACY:Same as for MILLIAMP SOURCE
    OUTPUT CURRENT: up to 24.00 mA
    TYPICAL DRIVE CAPABILITY:1200 Ohms @ 20.00 mA
    COMPLIANCE VOLTAGE:nominal 25 VDC @ 20 mA
    COMMON MODE ERROR:0.01% Full Scale/Common Mode Volt
    2-WIRE TRANSMITTER SIMULATOR
    RANGES:
    1.00 to 24.00 mA; -18.8 to 125.0% of 4 to 20 mA; % DP Flow
    ACCURACY:Same as for MILLIAMP SOURCE
    LOOP VOLTAGE LIMITS:Mininum, 3 VDC; Maximum 45 VDC
    OVERLOAD PROTECTION:Current limited to 25 mA nominal
    COMMON MODE ERROR:0.01% Full Scale/Common Mode Volt
    MILLIAMP READ
    RANGES:
    0.00 to 24.00 mA; -25.0 to 125.0 % of 4 to 20 mA; % DP Flow
    ACCURACY:Same as for MILLIAMP SOURCE
    OVERLOAD PROTECTION: Current limited to 25 mA nominal
    VOLTAGE BURDEN: 0.9V at 4 mA, 1.2V at 20 mA, 1.9V at 24 mA
    DC VOLTAGE SOURCE
    RANGES: 0.00 to 110.00 mV; 0.00 to 10.25V
    ACCURACY:
    ±(0.05% of 110 mV+ 0.01mV) = ±0.07 mV
    ±(0.05% of 10.25 V + 0.01V) =  ±0.02V
    SOURCE CURRENT:>20 mA
    SINK CURRENT:>20 mA
    OUTPUT IMPEDANCE: 
    						
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