Related Manuals for KYORITSU KEW3552
Summary of Contents for KYORITSU KEW3552
- Page 1 Instruction manual INSULATION - CONTINUITY TESTER KEW3551/3552/3552BT 1.888.610.7664 www.calcert.com sales@calcert.com...
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Page 2: Table Of Contents
8-1 Measurement method ･･････････････････････････････････････････ 21 8-2 Continuous measurement ･･････････････････････････････････････ 23 8-3 Voltage characteristics of measurement terminals ････････････････ 24 8-4 20G/ 40GΩ range (3552/3552BT only) ･･･････････････････････ 25 8-4-1 Settings ･ ･････････････････････････････････････････････････ 25 8-5 Insulation status indicator ･･････････････････････････････････････ 26 8-5-1 Reference value for insulation status, Pass/ Fail, judgement ･ ･･････････ 26 8-5-2 Reference value settings ･･････････････････････････････････ 27 8-6 DAR/ PI measurement, 1-min value display (KEW3552/3552BT only) ･････････ 29 8-6-1 DAR/ PI measurement and 1-min value display ･ ･････････････ 29 8-6-2 Indication ････････････････････････････････････････････････ 29 9. Low-resistance measurement (Continuity check) ･････････････････････ 30 9-1 Zero Ω ADJ. function ･･････････････････････････････････････････ 30 9-2 Measurement ･････････････････････････････････････････････････ 30 10. LCD backlight, LED light, Buzzer ･･････････････････････････････････ 31 10-1 LCD backlight ･ ･･･････････････････････････････････････････････ 31 10-2 Buzzer ･･････････････････････････････････････････････････････... - Page 3 13. Memory function (KEW3552/ 3552BT only) ･･･････････････････････ 37 13-1 Saving method ･･･････････････････････････････････････････････ 37 13-2 Recalling the data ････････････････････････････････････････････ 38 13-3 Deleting the data ･ ････････････････････････････････････････････ 39 14. Infrared data transmission (KEW3552/ 3552BT only) ･ ･･････････････ 40 14-1 How to transfer data ･･････････････････････････････････････････ 40 15. Bluetooth communication (KEW3552BT only) ･･････････････････････ 41 15-1 Bluetooth communication ･････････････････････････････････････ 41 15-2 KEW Smart for KEW3552BT ･････････････････････････････････ 42 16. Battery replacement ･･････････････････････････････････････････････ 43 17. Shoulder strap belt attachment ････････････････････････････････････ 44 18. Storing in carrying case ･･･････････････････････････････････････････ 44 1.888.610.7664 www.calcert.com sales@calcert.com...
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Page 4: Safety Warnings (Safety Precautions) ･･････････････････････････････････1
● The instrument is to be used only in its intended applications. ● U nderstand and follow all the safety instructions contained in the manual. It is essential that the above instructions are adhered to. Failure to follow the above instructions may cause injury, instrument damage and/or damage to equipment under test. Kyoritsu is by no means liable for any damage resulting from the instrument in contradiction to these cautionary notes. The symbol # indicated on the instrument means that the user must refer to the related parts in the manual for safe operation of the instrument. It is essential to read the instructions wherever the symbol # appears in the ... - Page 5 ● V erify proper operation on a known source before use or take actions as a result of the indication of the instrument. # WARNING ● D o not use the instrument or test leads if any abnormal conditions, such as broken cover or exposed metal parts are noted. ● F irst, firmly connect the test leads to the instrument, and then press the test button. ● Never install substitute parts or make any modifications to the instrument. S end the instrument to your local KYORITSU distributor for repair or re- calibration. ● Do not try to replace batteries if the surface of the instrument is wet. ● Connect each test lead firmly into the corresponding terminals. ● S top using the test lead if the outer jacket is damaged and the inner metal or color jacket is exposed. ● E nsure that the function switch is set to OFF position before opening the battery compartment cover for battery replacement.
- Page 6 Symbols The following symbols are used and marked on the instrument and in this instruction manual. Please carefully check before starting to use the instrument. Double or reinforced insulation User must refer to the explanations in the instruction manual. Earth Danger of possible electrical shock Do not use on AC electric systems exceeding 660 V.
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Page 7: Features ････････････････････････････････････････････････････････････4
2. Features KEW3551/3552/3552BT can measure insulation resistance, low-resistance, and also AC/ DC voltage. ● L CD backlight and LED spot light to facilitate working at dimly illuminated location or at nighttime work. The built-in illuminance sensor automatically turns on/ off the lights. ● Memory function (available on KEW3552/ 3552BT) Internal memory to save, recall, and delete the measured data. ● Infrared transmission function (available on KEW3552/ 3552BT) Transmits the data saved in the internal memory to PC. ● Bluetooth communication function (available on KEW3552BT) C onnects the instrument and a Bluetooth device, like a tablet, for remote monitoring and data saving. ● Clock (available on KEW3552/ 3552BT) Measured data is saved with the measurement time information. ● Auto-power off function ... - Page 8 - With elapsed time display S tarts counting and displaying testing duration, elapsed time, on the start of insulation resistance measurement. - DAR/ PI measurement function (available on KEW3552/ 3552BT) A utomatically calculates and displays DAR (Dielectric Absorption Ratio) and PI (Polarization Index) values during an insulation resistance measurement. ● Zero-ohm adjustment function F or low-resistance measurements, short-circuit the tips of test leads and ...
- Page 9 Overview of available function list Function KEW3551 KEW3552 KEW3552BT Voltage measurement 20G/40GΩ Range Insulation Insulation status Fixed Pass/ User selectable Pass/ Meas. indicator Fail criteria Fail criteria DAR/ PI Zero ADJ. Low- resistance Meas. Continuity buzzer Backlight Memory Clock (MODEL8212USB) Data Communication Wireless (via Bluetooth) ̶ 6 ̶ 1.888.610.7664 www.calcert.com sales@calcert.com...
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Page 10: Specifications ･･･････････････････････････････････････････････････････7
3. Specifications ● Measuring range and accuracy (at 23℃±5℃, RH 85% or less) 1. Voltage measurement Range 300.0/ 600 V (auto-ranging) AC 300.0 V : 0.0 to 314.9 V 600.0 V : 270 to 629 V Display range DC 300.0 V : ± 0.0 to ± 314.9 V 600 V : ± 270 to 849 V Measuring range AC: 2.0 to 600 V rms (45 ‒ 65 Hz) (accuracy guaranteed) DC: ± 2.0 to ± 600 V AC: > 629 V Over-range display DC (+) : > 849 V DC (-) : < - 849 V Accuracy ±1%rdg±4dgt * R MS detection in AC mode. For non-sinusoidal waveforms with CF<2.5, add ±1%rdg for the above listed accuracy. (850 Vpeak or less). AC/ DC auto-detection (2 V or higher) 2. Low-resistance measurement (Continuity check) Resistance range 40.00/ 400.0/ 4000 Ω (auto-ranging) Open-circuit V... - Page 11 360 - 524 104.9 MΩ 209.9 MΩ 262.4 MΩ 20 GΩ: 40 GΩ: MΩ 1.80 - 20.99 GΩ 3.60 - 41.99 GΩ KEW3551 >2099 MΩ >4199 MΩ KEW3552/3552BT O v e r - r a n g e >104.9 >209.9 >262.4 >524 While 20/ 40GΩ Range is enabled: display MΩ MΩ MΩ MΩ (if disabled, the display is the same ...
- Page 12 ● Applicable ● I EC 61010-1, -2-034 CAT IV 300 V/ CAT III 600 V standards Pollution degree 2 ● IEC 61557-1, -2, -4, -10 ● IEC 61326-1, 2-2 ● IEC 60529 (IP40) ● EN 50581 (RoHS) ● IEC 61010-031 MODEL7260 CAT III 600 V (w/ cap) CAT II 1000 V (w/o cap) CAT II 1000 V (w/ 8017A) ( Attach the supplied protective cap to use this test leads in CAT III or higher environments.) MODEL7261A CAT III 600 V (w/ alligator clip) CAT II 600 V (w/ flat test bar) ( Attach the supplied alligator clip to use this test leads in CAT III or higher environments.) * ...
- Page 13 ● Operating uncertainty O perating uncertainty (B) is an error obtained under the nominal operating conditions and calculated with the intrinsic error (A), which is an error of the instrument used, and the error (En) due to variations. According to the standard, IEC 61557, the maximum operating error should be within ±30 %. Intrinsic error (A) is uncertainty of the performance characteristics of the instrument in the reference condition. 1. O perating uncertainty of insulation resistance measurement (IEC61557-2) * Formula: B = ±(|A|+ 1.15 x √E + E + E Intrinsic error Influence of position (N/A for digital testers) Influence of supply voltage (until battery status indicator becomes empty Influence of temperature (0℃ - 35℃) The specs. of this instrument are as follows. Intrinsic error (A) ......within ±5 % of indicated value (coverage factor: k=2) Influence of supply voltage (E ) ..within ±5 % of indicated value Influence of temperature (E ) ...
- Page 14 ● P ossible number of measurements where battery voltage is within the effective range. (measurement of 5 sec., pause of 25 sec.) Measurement function Test resistor Possible number of measurements 50 V 0.050 MΩ 2000 times or more 100 V 0.100 MΩ 1600 times or more 125 V 0.125 MΩ 1600 times or more Insulation Resistance 250 V 0.25 MΩ 1300 times or more 500 V 0.5 MΩ 1300 times or more 1000 V 1 MΩ 700 times or more Low-resistance 1 Ω 1400 times or more * where: ...
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Page 15: Instrument Layout
Turns on/ off the 0Ω ADJ function at low-resistance （ ） measurement. KEW3551: COMP button ⑨ * F or KEW3551: also used to turn on/ off insulation status indicator. KEW3552/ 3552BT: * F or KEW3552/ 3552BT: also used to make settings of each function. SETUP button A long press ( 1 sec.) while measuring 125 V switches a measurement range to 100 V range; a short press (<1 sec.) ⑩ SELECT button at voltage measurement switches the function to low- resistance measurement. Switches measurement functions and selects voltage for ... - Page 16 2. Side panel ③ Fig. 4-2 ① ② Name Description ① LINE terminal To connect MODEL7260 test lead. ② EARTH terminal To connect MODEL7261A test lead. Illuminates the measurement spot. The light auto- ③ LED spot light matically turns on/ off depending on the ambient brightness. 3. LCD Fig. 4-3 Name Description Battery status indicator Bar graph display of insulation resistance Digital display with measurement unit...
- Page 17 > symbol appears when the measured value is exceeding the measuring range, and < symbol appears when the measured dc has negative polarity. Appears when 0ΩADJ is done. Appears at Bluetooth communication (3552BT only) Buzzer ON Appears at IR communication (3552/ 3552BT only) Blinks while adjusting time (3552/ 3552BT only) Indicates a DAR value is displayed. (3552/ 3552BT only) Indicates a PI value is displayed. (3552/ 3552BT only) Indicates 1-min value is displayed. Comparator function is enabled. Indicates the rated measurement voltage value selected at insulation resistance measurement.
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Page 18: Accessories
5. Accessories ● Test leads (1) Teat lead with remote control switch MODEL7260 (red) *1 Barrier Metal tip Attach the supplied detachable cap as necessary. Insulation cap For CAT III 600 V (w/ cap) Fig. 5-1 For CAT II 1000 V (w/o cap) (2) Extension prod MODEL8017A * Attached and used with MODEL7260. Long type and helpful to access the distant measurement spot Fig. -
Page 19: Getting Started
6. Getting started 6-1 Attaching metal tip/ adapter for test leads The following metal tips and adapters are user-changeable depending on measurement purposes. (1) For MODEL7260 The following metal tips are available. 1. Standard metal tip .. I n stalle d at a s hip m e nt s u p plie d wit h a detachable insulation cap. -
Page 20: Battery Voltage Check
# DANGER To avoid getting electrical shocks, disconnect the test leads from the instrument before replacing the metal tip or adapter. 6-2 Battery voltage check (1) P lease refer to 16. Battery replacement in this manual and insert batteries in the instrument. (2) S et the function switch to any position other than OFF to power on the instrument. (3) C heck the battery status indicator displayed at the upper left corner of the LCD. : Normal. Battery voltage is enough. : L ow battery voltage：For continuous measurement, please refer to ... -
Page 21: Voltage Measurement
7. Voltage measurement # DANGER ● D o not apply a voltage exceeding the measuring range, 600 V max., to the instrument. ● Keep your fingers behind the barrier during a measurement. ● V erify proper operation on a known source before taking actions as a result of the indication of the instrument. 7-1 Measurement method (1) S et the function switch to V/ Ω position. To measure low-resistance, press the SELECT button (< 1 sec.). (2) Connect the test leads as the following figure shows. - MODEL7260 to the LINE terminal - MODEL7261A to the EARTH terminal Fig. 7-1 Black (3) C onnect the black test lead to the earth side of the circuit under test and the red remote probe to the line side. ... - Page 22 (4) C heck the reading on the LCD without pressing the test button nor remote control switch. The instrument detects ac/ dc automatically, and shows DC for dc input and AC for ac input. ● W hen negative dc voltage is defected at the line probe side, minus - polarity sign is displayed with a measured value. ● I f the measured voltage is less than 2 V, AC/ DC auto-detection doesn t work.
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Page 23: 8 Insulation Resistance Measurement
8 Insulation resistance measurement This instrument is used to measure insulation resistance of electric appliance or circuit to inspect the insulation performance. Check the voltage rating of the object to be tested before making measurement and select the voltage applied to. Note: ● D epending on the object to be measured, displayed insulation resistance value may not stabilize. ... -
Page 24: Measurement Method
8-1 Measurement method (1) Connect the test leads as the following figure shows. - MODEL7260 to the LINE terminal - MODEL7261A to the EARTH terminal Fig. 8-1 Black (2) C onfirm that the circuit under test isn t energized, and measure voltage with reference to 7. Voltage measurement. (3) C onfirm the voltage value which can be applied to the circuit under test, and then set the function switch to the desired range. - Page 25 Source side Earth terminal Circuit breaker Black Load side Fig. 8-2 Indicates the elapsed time. Fig. 8-3 (6) Auto discharge function This function allows electric charges stored in the capacitance of the circuit under test to be automatically discharged after measurement. Set the test button or remote-control switch to off with the test leads connected. ...
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Page 26: Continuous Measurement
● Bar graph D epending on the selected measurement range, values on each tick of bar graph vary as shown below. Bar graph for 500 V/ 1000 V range Fig. 8-4 Bar graph for 50 V/ 100 V/ 125 V/ 250 V range Fig. 8-5 8-2 Continuous measurement For continuous measurement, use the lock-down feature incorporated on the test ... -
Page 27: Voltage Characteristics Of Measurement Terminals
8-3 Voltage characteristics of measurement terminals This instrument conforms to IEC61557. This standard defines that the rated measurement current shall be at least 1 mA, and the lower limit of the insulation resistance maintaining the rated measurement voltage at measurement terminals. (See the table below.) This value is calculated by dividing the rated voltage by rated current. ie., in case that the rated voltage is ... -
Page 28: 40Gω Range (3552/3552Bt Only)
8-4 20G/ 40GΩ range (3552/3552BT only) The 20GΩ and 40GΩ ranges are available for measuring 500 V and 1000 V respectively. (This is NOT available on KEW3551.) Enabling/ disabling 2 0 GΩ/ 4 0 GΩ range affects and changes the configurations of 500V and 1000V ranges as shown in the following table. 1. While 20GΩ/40GΩ ranges are disabled (default settings): Voltage Four measurement ranges 500V 4.000 MΩ/ 40.00 MΩ/ 400.0 MΩ/ 2000 MΩ 1000V 4.000 MΩ/ 40.00 MΩ/ 400.0 MΩ/ 4000 MΩ 2. While 20GΩ/40GΩ ranges are enabled: Voltage Five measurement ranges 500V 4.000 MΩ/ 40.00 MΩ/ 400.0 MΩ/ 2000 MΩ/ 20 GΩ 1000V 4.000 MΩ/ 40.00 MΩ/ 400.0 MΩ/ 4000 MΩ/ 40 GΩ 8-4-1 Settings (1) To enable measurements on 20GΩ/ 40GΩ range: 1. Get the instrument into setting mode. 2. ... -
Page 29: Insulation Status Indicator
8-5 Insulation status indicator 8-5-1 Reference value for insulation status, Pass/ Fail, judgement The instrument can compare the measured insulation value and the pre-set reference value listed below. LCD backlight lights up and buzzer sounds according to the result. This function can be turned off. With KEW 3552/ 3552BT, you can select any desired value as a reference value; the reference values are fixed and unchangeable on KEW 3551 . ● Reference values for KEW3551 Rated voltage 100V 125V 250V... -
Page 30: Reference Value Settings
No“COMP”nor reference value the reference value. are displayed. (3) You can set this status indicator to ON or OFF for each range, respectively. (The settings won t be cleared even after powering off the instrument.) [KEW3552/ 3552BT] (1) Get the instrument into setting mode. 1. S et the function switch to any position other than low-resistance measurement, and then hold down the SETUP button ( 2 sec.) in stand-by mode. 2. Use the cursor key and select the range to set the reference value. ... - Page 31 (2) P ress the cursor key to toggle the reference values. Press the ENTER button to set and save the displayed value as a reference value. The following values are selectable. OFF, 0.100 MΩ, 0.125 MΩ, 0.200 MΩ, 0.250 MΩ, 0.400 Selectable MΩ, 0.500 MΩ, 1.000 MΩ, 10.00 MΩ, 100.0 MΩ, Any values (Selectable range: 0.000 MΩ ‒ 4199 MΩ) Select Any to set your desired value as a reference value: 1. Select the place of decimal point with cursor key, and press ENTER to confirm.
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Page 32: Dar/ Pi Measurement, 1-Min Value Display (Kew3552/3552Bt Only)
8-6 DAR/ PI measurement, 1-min value display (KEW3552/3552BT only) 8-6-1 DAR/ PI measurement and 1-min value display The instrument can measure and calculate DAR (Dielectric Absorption Ratio) and PI (Polarization Index) values automatically during an insulation resistance measurement. (not available on KEW3551) ● T he DAR value is displayed in 1 minute and the PI value in 10 minutes after starting a measurement. ● The following table shows the formula and display range. Resistance value (1 min after a start of test) DAR = ... -
Page 33: Low-Resistance Measurement (Continuity Check)
9. Low-resistance measurement (Continuity check) # DANGER Do not apply voltage to the low resistance range. Always check the circuit or equipment under test is surely de-energized before starting a measurement. 9-1 Zero Ω ADJ. function This function is to null the resistances (up to 3 Ω) of the test lead or internal circuit to display the resistance of the equipment under test only. Setting: (1) Set the function switch to V/ Ω position. (2) I f the instrument is in the voltage measurement mode, press the SELECT button (< 1 sec) and switch the mode to low-resistance measurement. (3) S hort the test leads: red lead connected to LINE terminal and black lead connected to EARTH terminal. (4) P ress the 0ΩADJ button while the test button is locked or the remote control switch is held. Then the LCD shows 0.00 Ω... -
Page 34: Lcd Backlight, Led Light, Buzzer
Fig. 9-1 ● I f a current of 200 mA or higher is detected on the object under test, the continuity buzzer sounds to indicate that there is continuity. If you wish to disable this continuity buzzer, please refer to 10. LCD backlight, LED light, Buzzer. ● A t low-resistance measurements, impedances of the operating circuit connected in parallel with the instrument may affect the measurement result. ● Circuit protection T he instrument has circuit protection function: even if touching with a live circuit during low-resistance measurement unintentionally, the instrument will ... -
Page 35: Buzzer
10-2 Buzzer Buzzer sounds when: 1. powering on the instrument, 2. turning the function switch or pressing any button, 3. measured current is 200 mA or higher at low-resistance measurement, (Continuity buzzer) 4. selecting 1000V range, 5. live circuit warning is activating, and 6. auto-power-off function is activated. * For the cases 1. to 3., the buzzer can be set to always off. 10-3 Settings of backlight, LED light, and buzzer Follow the procedures described on the following pages and change the settings ‒ turning on/ off ‒ of the lights and buzzer. * T he procedures depend on each model. Please refer to the explanation about the model you re using. - Page 36 [KEW 3551] (1) Get the instrument into setting mode. 1. E nsure that the instrument is powered off. Hold down the 0ΩADJ button. 2. K eep the 0ΩADJ button held down, and set the function switch to V/ Ω position. The instrument wakes up and the LCD segments start blinking to indicate now the instrument is in setting mode.
- Page 37 (3) P ower off the instrument when setting completes. (The latest settings are saved and won t be cleared even after powering off the instrument.) [KEW 3552/ 3552BT] (1) Get the instrument into setting mode. 1. S et the function switch to any position other than low-resistance measurement, and then hold down the SETUP button ( 2 sec.) while in the stand-by mode. 2. U se the cursor key and toggle the screens for backlight and buzzer setting; the following figures shows each setting screen. Backlight setting screen: The LCD shows“...
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Page 38: Auto-Power-Off
11. Auto-power-off To prevent the instrument being left powered on and conserve battery power, the instrument automatically turns off approx. 10 min. after the last switch operation with audible buzzer sound. To turn on the instrument, turn the function switch to OFF position first, then set it to the desired range. This auto-power-off function doesn t work during a measurement or Bluetooth data communication. (KEW3552BT only) ̶ 35 ̶ 1.888.610.7664 www.calcert.com sales@calcert.com... -
Page 39: Clock Setting (Kew3552/ 3552Bt Only)
12. Clock setting (KEW3552/ 3552BT only) This instrument has an internal clock and can save the measured data with time information. (Not available on KEW3551.) 12-1 Setting (1) Get the instrument into setting mode. 1. S et the function switch to any position other than low-resistance measurement, and then hold down the SETUP button ( 2 sec.) while ... -
Page 40: Memory Function (Kew3552/ 3552Bt Only)
13. Memory function (KEW3552/ 3552BT only) This instrument can save voltage, insulation resistance, and low-resistance measurement results in the internal memory, 1000 results max. Data can be saved with two different site number for easy recognition. (Not available on KEW3551.) ● Data to be saved: M easured voltage, insulation resistance, and low-resistance, DAR/ PI, 1-min value, time and date, measurement function, and the data and site ... -
Page 41: Recalling The Data
(3) U se the cursor key and select SITE No. 1 , and press the ENTER button to confirm. Blink Fig. 13-2 (4) U se the cursor key and select SITE No. 2 , and press the ENTER button to confirm. Blink Fig. 13-3 (5) U se the cursor key to select the Data No. , and press the ENTER button to confirm. (Data no. is updated automatically.) Blink Fig. 13-4 (6) W hen data saving completes, the instrument shows stand-by screen. Press the ESC button to modify and re-do the settings. ● Simplified operation Y ou can skip SITE No. 1, and 2 and Data No. settings and save the data ... -
Page 42: Deleting The Data
13-3 Deleting the data (1) H old down the MEMORY button ( 1sec.) in stand-by mode, and recall the saved data. (2) U se the cursor key to select the data no. you wish to delete. To delete all the saved data, select ALL . ( ALL is displayed between 0 and 999 .) Wishing to delete all the saved data. Fig. 13-6 (3) T he LCD shows clr by pressing the ENTER button. Another press of ENTER ... -
Page 43: Infrared Data Transmission (Kew3552/ 3552Bt Only)
14. Infrared data transmission (KEW3552/ 3552BT only) The internal memory data can be transferred to PC by using the optical adapter MODEL8212 USB. (Not available on KEW3551.) 14-1 How to transfer data (1) E nsure that the special application KEW Report has been installed in your PC. ... -
Page 44: Bluetooth Communication (Kew3552Bt Only)
Please use another tablet device and try to communicate with. If you still cannot confirm the connection, there may be some problem with the instrument unit. Please contact your local KYORITSU distributor. ● T he Bluetooth word mark and logos are owned by Bluetooth SIG, Inc. and we, KYORITSU, are licensed by them for use. ● A ndroid, Google Play Store, and Google Map are the trademark or ... -
Page 45: Kew Smart For Kew3552Bt
15-2 KEW Smart for KEW3552BT The special application KEW Smart for KEW3552BT is available on download site for free. (An Internet access is required.) Please note that communication charge is incurred separately for downloading applications and using special features of them. For your information, KEW Smart for KEW3552BT is provided on-line only. Features of KEW Smart for KEW3552BT: ● Remote monitoring/ checking ... -
Page 46: Battery Replacement
16. Battery replacement Replace batteries with new ones when the battery indicator shows ; battery level is almost empty. # DANGER ● Do not open the battery compartment cover if the instrument is wet. ● N ever attempt to replace batteries during a measurement. When opening the battery compartment cover, ensure that the instrument is powered off and no test leads are connected to, in order to avoid getting electrical shock. ● T he battery compartment cover must be closed and screwed before making measurement. -
Page 47: Shoulder Strap Belt Attachment
17. Shoulder strap belt attachment Strap belt is supplied with this instrument to suspend from the neck to allow both hands to be used freely for easy and safe operation. Fig. 17-1 18. Storing in carrying case Store the instrument and test leads as the following figure shows. Test leads compartment Partition Flat test bar Unit compartment Fig. 18-1 # CAUTION ● Always power off the instrument before storing it in the carrying case. ̶ 44 ̶ 1.888.610.7664 www.calcert.com sales@calcert.com...