User's Guide Model 412400 Multifunction Process Calibrator Introduction Congratulations on your purchase of the Extech Model 412400 Process Calibrator. The Model 412400 can Measure or Source Current, Voltage, and Thermocouple Temperature signals. In SOURCE/MEASURE mode, the meter can also Power and Measure simultaneously with 24Vdc loop power. The calibrator’s five (5) memory locations for each calibration function (which are also user programmable) can be used to provide stepped outputs automatically. In automatic mode, the output steps can be programmed to run continuously or in single-shot mode. The Oyster Series meters employ a convenient flip up display with neck-strap (lanyard) for hands-free operation and run on battery power or from an AC adaptor. This instrument is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Meter Description 1. LCD display 2. Lanyard storage compartment 3. Positive test lead banana jack (red) 4. Negative test lead banana jack (black) 5. Thermocouple Input / Output jack 6. Lanyard posts (one on each side) 7. Battery compartment (bottom) 8. Keypad 9. AC adaptor jack 10 1 8 9 2 10. Flip up display 4 5 7 Display Description 3 6 1. Low battery icon 2. Auto Power Off icon 3. Numerical representation of measured, sourced, or stored signal value (also used to display mnemonics for programming) 4. SOURCE or MEASURE mode status icon 5. Loop power indicator 6. Thermocouple types 7. Temperature unit of measure (Celsius) 8. Temperature unit of measure (Fahrenheit) 9. Millivolt unit of measure 10. Voltage unit of measure 11. Milliamp unit of measure 12. Per cent 13. Five memory locations 1 2 7 APO 8 3 10 4 5 6 24V Loop Power 2 12 9 11 13 412400 V5.0 9/08 Operation POWER BUTTON AND AUTO POWER OFF FEATURE 1. Use the POWER button to turn the unit ON or OFF. When the unit is switched on, a short self-test will display after which the LCD will stabilize. 2. This meter is powered by six (6) ‘AA’ 1.5V batteries or by an AC adaptor. 3. When the battery symbol appears on the upper left-hand corner of the LCD display, or if the instrument does not switch on with a press of the POWER button, replace the batteries. Low battery power may cause inaccurate readings and erratic meter operation. 4. This instrument is equipped with Auto Power OFF which turns the meter off after 10 minutes of inactivity. To toggle this feature off and on, press and hold the POWER button (starting with the meter ON) until the APO icon is on or off.: MEASURE MODE 1. Press the POWER button. The meter will turn on in the MEASURE mode and in the function last used. 2. Press and release the MODE I/O button to change to the function desired (Temperature, Voltage, Current or Current with 24V Loop Power. 3. Press the UNIT TYPE button to select the current units (mA, %) or temperature units (°C, °F). Voltage is autoranging. 4. In the temperature function, press and hold the UNIT TYPE button to change the thermocouple type (J, K, T). 5. Connect the signal to be measured to the input jacks for current and voltage or the mini-connector for temperature. 6. Read the measured value in the display INPUT ZERO An input zero is performed when the meter is first turned on. The zero can also be performed manually at any time (with or without an input signal connected 1. In the MEASURE mode, press and release the MEM/ZERO button. 2. The units icon will flash and after a few seconds the meter will return to normal operation. MEASUREMENT OVER-RANGE and UNDER-RANGE INDICATION In the Voltage and Current functions, measured signals above or below the specified ranges will be indicated by “HHHH” for above range and “LLLL” for below range. In the Temperature function, OPEN will be displayed if the measured signal is outside of the specified range or a thermocouple is not inserted into the temperature jack. 3 412400 V5.0 9/08 SOURCE MODE 1. Press the POWER button. The meter will turn on in the MEASURE mode and in the function last used. 2. Press and release the MODE I/O button to change the function desired (Temperature, Voltage, or Current) 3. Press and hold the MODE I/O button until SOURCE appears in the display. 4. Press the UNIT TYPE button to select the current units (mA, %) or temperature units (°C, °F). Voltage is autoranging. 5. Adjust the output using the ▲▼buttons 6. • Press the ▲ button once to increase the value in one-digit steps. • Press and hold the ▲ button to increase the value in ten-digit steps. • Press and hold the ▲ button > 2 sec and then press the ▼ to increase the value in 100 digit steps • To decrease the value, use the ▼ button as described above. In the Current function, the -25% to 125% output range corresponds to the 0 to 24mA output range. % Display -25% 0% 25% 50% 75% 100% 125% mA output 0mA 4mA 8mA 12mA 16mA 20mA 24mA NOTE: The “SOURCE” icon will blink until the output level has stabilized. The most common cause for the “SOURCE” icon to continue blinking is that the load impedance is too high in the current mode or too low in the voltage mode. 4 412400 V5.0 9/08 MEMORY (MEM) BUTTON The calibrator has five (5) memory locations for each function for stepped calibration. Default output values are noted below. The memory locations/output values can be selected manually, or the series of five values can be stepped automatically for the voltage and current functions. For the temperature function, only manual stepping is available. The default values initially stored in the memory locations can be modified by the user. Once changed, the modified valued will be held until manually changed again. MANUAL Sourcing from stored memory values 1. Select the Source mode 2. Press the MEM button. The M1 icon (memory location 1) will appear in the display and the value stored in that location will be displayed and sourced. 3. Subsequent presses of the MEM button will step through the five memory locations. AUTOMATIC Sourcing from stored memory values (Voltage/Current modes only) 1. Select the Source mode 2. Press and hold the UNIT-TYPE button until ‘StPC’ (continuous stepping) or ‘StPS’ (single shot stepping) appears on the LCD. 3. In Single Shot mode (StPS), the meter will automatically step through all of the memory locations (M1 through M5 and then M5 through M1) and then automatically stop. Each step is held for 10 seconds. 4. In Continuous mode (StPC), the meter runs through the same sequence as in Single Shot mode except the sequence repeats indefinitely until the user aborts the test by pressing the UNIT-TYPE key. 5. When the sequence ends, either continuous or single shot, the meter will briefly display ‘END’ and then return to the standby mode. Storing values into memory 1. Select and display a memory location (M1 to M5) 2. Use the ▲ ▼buttons to adjust the display to the desired source value. Speed scrolling is explained earlier. 3. Press and HOLD the MEM button for > 2 seconds. 4. The Memory location number will flash for several seconds while the value is being stored. When the flashing stops, the value is stored. 5. The displayed value will now be stored in the displayed memory location. 5 412400 V5.0 9/08 Default Memory Values Five common source values are pre-programmed for each mode and stored in the Calibrator’s memory; the user can replace these values as needed; refer to the Table below: Default Memory Values M1 M2 M3 M4 M5 mV, V 0mV 2.50V 5.00V 7.50V 10.00V mA 4mA 8mA 12mA 16mA 20mA % 0% 25% 50% 75% 100% Temperature M1 M2 M3 M4 M5 o 32 o o Type J / K ( F) Type J / K ( C) 0 o o 32 o o Type T ( F) Type T ( C) 0 o 212 o 932 o o 100 o 500 o 1382 750 o 1832 o 1000 o 212 o 392 o 572 o 752 o 100 o 200 o 300 o 400 o Note: If ERR displays in place of a stored memory value, the value is outside the specified range of the instrument. Select another value that is within the specified range. Battery Replacement When the battery symbol appears on the upper left-hand corner of the LCD, or if the unit does not switch on when the POWER button is pressed, replace the six (6) ‘AA’ 1.5V batteries. 1. The battery compartment is located on the bottom of the instrument 2. Remove the screw that secures the battery compartment cover 3. Slide the battery compartment cover off of the instrument 4. Replace the batteries observing polarity 5. Replace the compartment cover and the screw 6 412400 V5.0 9/08 Specifications General Specifications Display Meter Power Auto Power OFF 9999 count LCD Six (6) 1.5V ‘AA’ batteries or AC adaptor Meter automatically powers off after 10 minutes of inactivity (can be disabled) 24mA @ 1000 ohms 24Vdc (1000 ohm max. load) Batteries, AC adaptor, Calibration cable, and User Guide Approximately 7 hours @ 24mA output with 1000 ohm load 9V DC @ 1A, 5.4 mm, center positive/barrel negative 41ºF to 104ºF (5ºC to 40ºC) -4ºF to 140ºF (-20ºC to 60ºC) Max 80% up to 87ºF (31ºC) decreasing linearly to 50% at 104ºF (40ºC) <80% 7000ft. (2000meters) maximum. 3.8 x 4.7 x 1.8” (96 x 118 x 45mm) folded 12 oz. (340g) Current output capability Loop Power Accessories Supplied Battery Life Power Supply Operating Temperature Storage Temperature Operating Humidity Storage Humidity Operating Altitude Dimensions Weight Specifications Voltage/Current Mode Function Range Resolution Measure Voltage 0 to 20.00V 1mV to 1999mV 10mV thereafter Current 0.00 to 50.00mA 0.01mA % -25% to +230% 0.1% Mode Function Range Resolution Source Voltage 0 to 10.00V 1mV to 1999mV 10mV thereafter Current 0.00 to 24.00mA 0.01mA % -25.0 to 125.0% 0.1% Accuracy ±(0.075% of rdg + 1d) or ± 3 digits Whichever is greater Accuracy ±(0.075% of rdg + 1d) or ± 3 digits Whichever is greater Specifications Temperature Mode Source & Measure Function Range Resolution Accuracy o Type J -58 to 1830 F o -50 to 1000 C Type K -58 to 2498 F o -50 to 1370 C Type T -184 to 752 F o -120 to 400 C o o o 0.1 < 1000 o o 1.0 ≥ 1000 o o ±(0.15% rdg + 1.8 F/ 1 C) o 7 412400 V5.0 9/08 Warranty EXTECH INSTRUMENTS CORPORATION (A FLIR COMPANY) warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six month limited warranty applies to sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit our website www.extech.com for contact information. A Return Authorization (RA) number must be issued before any product is returned to Extech. The sender is responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or unauthorized modification. Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or consequential damages. Extech's total liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no other warranty, whether written or oral, is expressed or implied. Calibration and Repair Services Extech offers repair and calibration services for the products we sell. Extech also provides NIST certification for most products. Call the Customer Service Department for information on calibration services available for this product. Extech recommends that annual calibrations be performed to verify meter performance and accuracy. Support line (781) 890-7440 Technical Support: Extension 200; E-mail: [email protected] Repair & Returns: Extension 210; E-mail: [email protected] Product specifications subject to change without notice For the latest version of this User’s Guide, Software updates, and other up-to-the-minute product information, visit our website: www.extech.com Extech Instruments Corporation, 285 Bear Hill Rd., Waltham, MA 02451 Copyright © 2008 Extech Instruments Corporation (a FLIR company) All rights reserved including the right of reproduction in whole or in part in any form. 8 412400 V5.0 9/08