This is a Digital Charge Amplifier type Vibrometer covering 1Hz ～100 kHz Conversion of the Measured value and Change of the Units are all done automatically. Measurement Function are selected by the Soft-touch Keys. It saves the users from complicated operations. Reading indication is easy.

• Conversion of the Measured value and Change of the Unit can be automatically made according the Pickup Sensitivity or Filter Response. Indication by CGS unit is available.
• H Function that is convenient to detects of the defective Bearings.
• Level Alarm Function (A Connector for the Output from the Relay Contacts is preparede as Option.
• Vibration Severity Calculation according to ISO-10816 is available.
• Frequency Range: 1Hz ～100 kHz
• Automatic Data Processing by GP-IB is possible . (Option)

Model	VM-1970
Input Signal	Piezoelectric Accelerometer
Frequency Range	Acceleration： 1Hz ～ 100kHz (±3dB), 3Hz ～ 70kHz (±0.5dB) Velocity： 3Hz ～ 6kHz (±0.5dB) Displacement： 3Hz ～ 600Hz (±0.5dB)
Measurement Range (for an Accelerometer of  Charge Sensitivity 1.0～9.99pc / m/s2)	Acceleration 1,10,100,1000,10000m/s2,5-Ranges Velocity 3Hz～ 1,10,100,1000 cm/s 4-Ranges 10Hz～ 1,10,100,1000 cm/s 4-Ranges 30Hz～ 0.1,1,10,100,1000 cm/s 5-Ranges Displacement 3Hz～ 1,10,100,1000 mm p-p 4-Ranges 10Hz～ 0.1,1,10,100,1000 mm p-p 5-Ranges 30Hz～ 0.01,0.1, 1,10,100 mm p-p 5-Ranges H Function Value of Acceleration passed through 1kHz Low-pass Filter after processed by the 2kHz～15kHz Band-pass Filter. Unit is same as of Acceleration.
Filter Response	Lower Cutoff Frequencyr: (LOW.F):OFF (1Hz),3,10,30Hz Higher Cutoff Frequency: (HIGH.F):300Hz,1,3,10kHz, OFF,(100kHz) Cutoff characteristic: -18dB, Butterworth
Indication	rms : Mean Square value EQP: Equivalent Peak estimated from average value PEAK: Peak value P・HOLD: Held Max. Peak Value
Level Watching Function	Alarm Level Step: 1 Step foe every Channel Setting: 0 ～110% for every range  Alarm Output: 1a Relay Contact Output Alarm Output : 1a Relay Contact shared by every channel ITTL Level Output for each individual channel Contact Capacity: DC3VDC 0.5A, AC120V 0.5A
Output	Waveform: Voltage: (Load 10kΩ or higher) Level Output: Voltage: (Load 10kΩ or higher) Calibration Output: 80Hz Sine
Ambient Conditions	For Operation: 0 ～ 40°C, 0 ～ 85% RH or lower
Power	100V AC ±15%, 50/60Hz, ≦20VA Battery: D size 4 pcs. Life 10 hours or longer External: DC9～12V
Main Unit Size・Mass	200Wx150Hx290Dmm (excluding Handles and other protrusions) Approx. 5kg

Standard Accessories

No.	Item	Qty	Descriptions
1	AC Adapter	1	For AC 100V
2	AC Adapter Plug	1	Accessory of above
3	Output Cable	1	1.5m
4	Screw Driver	1	Minus type
5	Fuse	2	2 ampere
6	Main Unit Plastic Cover	1	―
7	Instruction Manual	2	―

Option

No.	Item	Remark
1	GP-IB Board	―
2	Auxiliary Output Connector	For Alarm Relay
3	Conversion Transformer	For AC Adapter

Applications (Connection of the External Equipments)

■AC OUTPUT (for Full Scale ＋5V, Load 10kΩ or higher

Waveform Output・・・Oscilloscope・Stroboscope・Data Recorder.

■DC OUTPUT (for Full Scale ＋5V, Load 10kΩ or higher

Vibration Level Output・・・Pen Recorder