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: