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8. MAINTENANCE

a) Battery replacement :

When the low battery warning symbol "       " 

appears, change new batteries as follows :

(1) Disconnect the test leads from the multimeter

and turn off the power.

(2) Unscrew the battery cover and replace with

new batteries(1.5V  AAA×2).

(3) Re-install the battery cover.

b) Fuse replacement :

(1) Disconnect the test leads from the multimeter

and turn off the power.

(2) Unscrew the battery cover and replace with

new fuse(0.5A/600V, 5×20mm).

(3) Re-install the battery cover.

Rotating Right L1  L2  L3

(clockwise)

Phase Rotation Indication

Rotating Left L1  L3  L2

(counter-clockwise)

Summary of Contents for BST-MT707

Page 1: ...DIGITAL MULTIMETER AND PHASE ROTATION TESTER INSTRUCTION MANUAL Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

Page 2: ...INDEX 1 INTRODUCTION 2 SAFETY NOTES 3 FEATURES 4 SPECIFICATIONS 5 GENERAL 6 INSTRUMENT LAYOUT 7 MEASUREMENT 8 MAINTENANCE PAGE 1 2 3 4 6 7 8 11 12 16 16 17 ...

Page 3: ...re safe operation WARNING READ SAFETY NOTES NEXT PAGE BEFORE USING THE METER CAT IV Is for measurements performed at the source of the low voltage installation CAT III Is for measurements performed in the building installation CAT II Is for measurement performed on circuits directly connected to the low voltage installation CAT I Is for measurements performed on circuits not directly connected to ...

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Page 5: ...l show AC voltage between phases and Phase Rotation Wide range for capacitance test 0 40000μF 40 00mF REL Auto Zero function MAX MIN function VAHz function Frequency 40 00 MHz Data hold function Over range indication Low battery detection Auto power off in 15 minutes Convenient stand for viewing Comply with EN 61010 1 CAT III 600V for the range of 600V AC DC To disable the auto power off function ...

Page 6: ...50 V 1 V Input impedance 10 MΩ DC Voltage Ranges Resolution Accuracy 400 mV 0 1 mV 0 5 rdg 3dgt 4 V 1 mV 40 V 10 mV 400 V 100 mV 1000 V 1 V Input impedance 10 MΩ AC μA mA Ranges Resolution Accuracy 400 µA 0 1 µA 1 2 rdg 5dgt 4000 µA 1 µA 40 mA 0 01 mA 400 mA 0 1 mA Overload Protection 0 5A 600V fast blow fuse for 400mA ...

Page 7: ...load Protection 0 5A 600V fast blow fuse for 400mA Continuity Range Audible threshold 400 Ω Less than 30 Ω Diode Range Accuracy 2V 1 5 rdg 3dgt Resistance Ranges Resolution Accuracy 40 Ω 0 01 Ω 1 2 rdg 3dgt 400 Ω 0 1 Ω 4 kΩ 1 Ω 40 kΩ 10 Ω 400 kΩ 100 Ω 4 MΩ 1 kΩ 40 MΩ 10 kΩ 2 0 rdg 4dgt 200 MΩ 100 kΩ 2 3 rdg 4dgt ...

Page 8: ...µF 1 nF 40 µF 10 nF 400 µF 100 nF 4 mF 1 µF 40 mF 10 µF Frequency Ranges Resolution Accuracy 400 Hz 0 1 Hz 0 5 rdg 2dgt 4 kHz 1 Hz 40 kHz 10 Hz 400 kHz 100 Hz 4 MHz 1 kHz 40 MHz 10 kHz Phase Rotation Input voltage 80 750VAC Frequency range 40 80Hz Circuit structure All electronic not mechanical ...

Page 9: ...LCD this means the battery voltage drops below accurate operating level Operating temperature 0 C 40 C 80 Max Storage temperature humidity 10 C 50 C 80 Max Safety standard EN 61010 1 CAT III 600V EN 61010 2 030 EN 61326 1 Accessories Instruction Manual Batteries Test leads Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

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Page 11: ...de and to return to the AUTO mode press the RNG button for more than one second AUTO mode Auto ranging mode 3 HOLD Button Pressing the HOLD button HOLD annunciator turns on makes the meter stop updating the reading on the LCD This mode can be nested in most of the special modes Enabling HOLD function in automatic mode makes the meter switch to manual mode but the full scale range remains the same ...

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Page 13: ...hows the minimum value Press this button for more than one second to go back to the original mode 11 Hz Button Select the function of ACV ACmV ACµA or ACmA Then press the Hz button for less than one second to enter into the frequency measurement mode Press the Hz button again less than one second the DMM will go back to ACV ACmV ACµA or ACmA measurement function Select the function of ACV press th...

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Page 16: ...the LCD Connect the BLACK test lead COM to the first voltage source and the RED test lead to the second voltage source The PR sign will stop blinking and it means the first phase is locked Then connect the RED test lead to the third voltage source within 5 seconds The phase rotation sequence will be determined and the or signs will be showed on the LCD to indicate the phase rotation sequence Input...

Page 17: ...L2 L3 w L1 ...

Page 18: ...Unscrew the battery cover and replace with new batteries 1 5V AAA 2 3 Re install the battery cover b Fuse replacement 1 Disconnect the test leads from the multimeter and turn off the power 2 Unscrew the battery cover and replace with new fuse 0 5A 600V 5 20mm 3 Re install the battery cover Rotating Right L1 L2 L3 clockwise Phase Rotation Indication Rotating Left L1 L3 L2 counter clockwise ...

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Page 20: ...U00 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com ...

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