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High Intensity LED Stroboscope Digital Tachometer
DT-361/365
Before use, please carefully read these safety precautions as well as instructions,
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Instruction manual
Be sure to read before use.
and follow them for proper use.
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Summary of Contents for Nidec DT-361
- Page 1 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com High Intensity LED Stroboscope Digital Tachometer DT-361/365 Instruction manual Be sure to read before use. Before use, please carefully read these safety precautions as well as instructions, and follow them for proper use.
- Page 2 Safety Requirements Be sure to observe Before operation, maintenance and inspection, please carefully read this instruction manual and follow it for proper use. Please carefully read all information related to this unit's safety precautions before use. This instruction manual provides two grades of safety warnings: Danger and Caution. Each of them is an important description related to safety.
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Page 3: Table Of Contents
- Contents - Overview Before use Checking the contents Peel off the protection sheet Charging (only for DT-365) 2.3.1 Charging method 2.3.2 Indication of low battery voltage 2.3.3 Battery replacement Part names and functions Main unit Operation section Display 3.3.1 Part names 3.3.2 Number display... -
Page 4: Overview
Refer to 4.4 External synchronous emission for details 2 Before use 2.1 Checking the contents Check that the three items in the table below are supplied. M odel DT-361 (AC power input model) DT-365 (Charging battery built-in model) DT-361 x 1 DT-365 x 1 Main unit... -
Page 5: Peel Off The Protection Sheet
2.2 Peel off the protection sheet Peel off the protection sheet on the operation section. O p erat i o n sect i o n P eel o f f t h e ( t ransp arent ) p ro t ect i o n sh eet 2.3 Charging (only for DT-365) Be sure to charge the battery before initial use. -
Page 6: Indication Of Low Battery Voltage
2.3.2 Indication of low battery voltage If the remaining battery power drops to near zero, the number display alternates between the process setting and LLLLLL. However, operation can be performed even when the battery is in this low condition. If the remaining battery power decreases further, the number display indicates only LLLLLL, which then stops operation. -
Page 7: Part Names And Functions
3 Part names and functions 3.1 Main unit S up er l uminosity L ED ( 1 8 l ig hts) O p er ation section Ex ter nal I / O connector Pow er sw itch * T he imag e is f or D T - 3 6 5 . 3.2 Operation section * T he imag e is f or D T - 3 6 5 . -
Page 8: Display
3.3 Display 3.3.1 Part names C har g ing l amp ( onl y f or D T - 3 6 5 ) M emor y numb er disp l ay N umer ical disp l ay M ode disp l ay U nit disp l ay Emission setting disp l ay... -
Page 9: Functions And Operations
4 Functions and operations 4.1 Power ON/OFF Press the power switch when the power is OFF to turn the power ON. When the power is turned ON, the model is indicated, followed by internal oscillation emission or external synchronous emission. Operation D isplay When the power is... -
Page 10: Emission Setting
4.2 Emission setting Each press of the SIG key switches between internal oscillation emission and external synchronous emission. Operation D isplay I nter nal oscil l ation emission Ex ter nal sy nchr onous emission Each press switches the emission settings... -
Page 11: Internal Oscillation Emission
4.3 Internal oscillation emission 4.3.1 Display of internal oscillation emission S etting v al ue M ode disp l ay M emor y numb er disp l ay D isp l ay show ing inter nal oscil l ation emission 4.3.2 Switching the modes Each press of MODE key switches the setting display value to FPM (emission count mode), DUR (emission duration mode), and PHA (phase mode). -
Page 12: Emission Count Mode
4.3.4 Emission count mode The emission count (frequency) can be set in the emission count mode (FPM). 4.3.4.1 Emission count setting Turn the dial to the CW direction to increase the emission count (frequency), and to the CCW direction to decrease it. Turn the dial fast to change the setting value greatly and slowly to change it slightly. -
Page 13: Changing The Emission Count (Frequency) To Double Or Half
4.3.4.2 Changing the emission count (frequency) to double or half The emission count (frequency) can be changed to double or half of the current setting value using the key operation on internal oscillation emission. 1) To change the emission count (frequency) to double of the current setting value Each press of the x2 key changes the emission count (frequency) to double of the current setting value on internal oscillation emission. -
Page 14: Emission Duration Mode
4.3.5 Emission duration mode The emission time (ratio) can be set by 0.1º within the range between 0.1º/ 360º and 3.6º/ 360º in the emission duration mode (DUR). The emission time setting value shows the strobe emitting time by angle while a rotating object rotates one revolution (360º). *The maximum value for the emission duration is 400 μs. -
Page 15: Phase Mode
4.3.6 Phase mode When the rotation (motion) cycle of a measured object matches with the strobe flash cycle, the measured object appears to stand still. To change the angle (position) to make the object stand still, use the phase mode. The phase can be changed by 1º using the dial within the range between 1º and 359º in the phase mode (PHA). -
Page 16: External Synchronous Emission
4.4 External synchronous emission External synchronous emission is the function to emit a strobe flash in synchronization with an external pulse. •To activate external synchronous emission mode, refer to 4.2 Emission setting. •The selection can be made whether the emission is triggered based on the rising edge of the external pulse or the falling edge. Refer to 4.6.3 Trigger edge setting. •Timing (delay) from the external pulse entry to strobe flash emission can be optionally set. 4.4.1 Emission count mode M easur ement v al ue of the emission count ( f r eq uency ) M ode disp l ay I ndicates the memor y... -
Page 17: Emission Duration Mode
4.4.2 Emission duration mode The emission time (ratio) can be set by 0.1º within the range between 0.1º/ 360º and 3.6º/ 360º in the emission duration mode (DUR). (The emission time setting value shows the strobe emitting time by angle while a rotating object rotates one revolution (360º).) *The maximum value for the emission duration is 400 μs. -
Page 18: Phase Mode
4.4.3 Phase mode Delay emission can be set within the input signal range between 60 fpm and 10,000 fpm. In the phase mode (PHA), the delay angle from the external pulse entry to strobe flash emission can be changed by 1º using the dial within the range between 1º and 359º. Press the UNIT key to set the phase change by time. The phase can be changed by 1 ms within the range between 0 ms and 999 ms (max.). -
Page 19: How To Set The Delay
4.4.3.1 How to set the delay The delay angle from the pulse input to emission can be set by 1º within the range between 1º and 359º by setting one cycle of the external pulse to 360º. Measure the external pulse frequency per cycle, and calculate the delay angle based on the measured frequency to perform the delay emission. Since a delay of approximately 30 μs always exists for the internal calculation, the actual delay time is calculated as follows:... -
Page 20: Memory Function
Memory function Each setting value can be saved and read out. 4.5.1 Saving each setting value This function is used to save each setting value. There are two types of saving methods, one is to save a parameter by pressing and holding the “LOAD(SAVE)”... -
Page 21: Saving On Internal Oscillation Emission
4.5.1.1 Saving on internal oscillation emission Press and hold the “LOAD(SAVE)” key in the Internal oscillation emission mode to save the setting value. Press and hold the LOAD(SAVE) key to enter the save standby status. SAVE and the memory number in which the setting value is saved are indicated alternately. In this status, a memory number in which the setting value is saved can be changed using the dial operation. -
Page 22: Saving On External Synchronous Emission
4.5.1.2 Saving on external synchronous emission Press and hold the “LOAD(SAVE)” key in the external synchronous emission mode to save the setting value. Press and hold the LOAD(SAVE) key to enter the save standby status. SAVE and the memory number in which the setting value is saved are indicated alternately. In this status, a memory number in which the setting value is saved can be changed using the dial operation. -
Page 23: Reading Out Each Setting Value
4.5.2 Reading out each setting value This function is used to read out each setting value. 4.5.2.1 Reading out on internal oscillation emission Press the “LOAD(SAVE)” key in the internal oscillation emission mode to read out the setting value. Each press of the “LOAD(SAVE)” key changes the memory number to call. Each press of the LOAD(SAVE) key changes the memory number in the order of 1->2->3->4->5- >0 (free mode)->1->.. -
Page 24: Reading Out On External Synchronous Emission
4.5.2.2 Reading out on external synchronous emission Press the “LOAD(SAVE)” key in the external synchronous emission mode to read out the setting value. Each press of the “LOAD(SAVE)” key changes the memory number to call. The memory number being read is indicated on the memory number display. Operation D isplay N o memor y numb er... -
Page 25: Function Mode
4.6 Function mode The following settings in the table can be configured in the function mode. Setting item Default setting value Function mode 1 Measurement range setting 120,000 Function mode 2 Trigger edge setting L - H Function mode 3 Auto emission stop time setting Function mode 4 External input signal setting 4.6.1 Moving to the function mode Turn the power ON while pressing the MODE key to enter the function mode. -
Page 26: Measurement Range Setting (Function Mode 1)
4.6.2 Measurement range setting (Function mode 1) This function is used to set the measurement range on internal oscillation emission. The measurement range has two levels. The indicated contents depend on the measurement unit setting. Measurement unit *Measurement range 60 to 12,000 60 to 120,000 (Available setting range: 60.0 to 12,000.0) (Available setting range: 60 to 120,000) -
Page 27: Trigger Edge Setting (Function Mode 2)
4.6.3 Trigger edge setting (Function mode 2) In the external trigger mode, the selection can be made whether the emission is triggered based on the rising edge of the external pulse or based on the falling edge. When the trigger edge is set to L-H Ex ter nal p ul se ( Pul se enter ed f r om an ex ter nal dev ice to D T - 3 6 1 / 3 6 5 ) - Page 28 Turn the dial to the CW direction to set the trigger edge to H-L. Turn the dial to the CCW direction to set the trigger edge to L-H. Operate the dial to stop the alternate display and only the trigger edge setting value is indicated. Operation D isplay Indicates alternately...
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Page 29: Auto Emission Stop Time Setting (Function Mode 3)
4.6.4 Auto emission stop time setting (Function mode 3) This setting is used to stop the emission automatically when no operation is performed for a certain period of time. The available setting time is within the range between 0 min and 120 min, which can be changed by 1 minute. -
Page 30: Input Signal Setting (Function Mode 4)
4.6.5 Input signal setting (Function mode 4) Signals to be entered for external synchronous emission can be selected either from open collector input or voltage pulse input. Set it to ON to select open collector input, and OFF to select voltage pulse input. For details about the circuit, refer to 4.7.2 External pulse input. -
Page 31: External I/O Connector
Power supply for sensors External pulse output External pulse input Power supply for sensors/ External pulse input/ Output common ─ ─ Connector (on the side of DT-361): Hirose (RM15WTRZB-8P(71)) •DT-365 Pin number Signal name Remark +24V 24 VDC power output +... -
Page 32: External Pulse Input
: Approx. 200 μs [Output circuit] [Output timing] 1 2 V External Emission I/ O connector 4.7k OU T 4 pin Ex ter nal p ul se outp ut ( 3 6 V ) C OM 6 pin Approx. 200 μs Inside DT-361/365... -
Page 33: Specifications
5 Specifications M odel DT-361 (AC power input model) D T - 3 6 5 ( Charging battery built-in model) Emission count 60 to 120,000fpm Setting accuracy ±0.02% Available to set to the range between 60 fpm and 120,000 fpm, or 60 fpm... -
Page 34: External Dimensions
Compliance standard RoHS Protection structure Equivalent to IP65 NEMA 4X Weight Approx. 4 lb (1.8 kg) Approx. 4.6 lb (2.1 kg) External I/O connector (8 pin) Standard accessories Dedicated AC adapter x 1 RM15WTPZA-8S(71) x 1 6 External dimensions [DT-361] [DT-365]... -
Page 35: Trouble Shooting
7 Trouble shooting Symptoms Factors Causes Treatment DT-365 does not flash and the Battery voltage is low Battery is not charged Please charge the battery display shows LLLLLLL. Battery lifetime Replace the battery The display of D T- 3 6 5 shows Something wrong with L ess capacity in the Please send it for repair if the... - Page 36 Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 TestEquipmentDepot.com...
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