| Detection methods | Optical reflective non-contact measurement; contact method (contact adapter supplied) | 
                    
                        | Measurement units | r/min, r/s (rotations) m/min (line speed)
 ms (cycle)
 COUNT (cumulative count)
 | 
                    
                        | Measurement ranges |   
                        
                            
                                
                                    |  | Non-contact method | Contact method |  
                                    | r/min (Hi range) | 6 to 99999 | 6 to 20000 |  
                                    | r/min (Lo range) | 6.0 to 600.0 | 6.0 to 600.0 |  
                                    | r/s | 0.10 to 999.99 r/s | 0.10 to 400.00 r/s |  
                                    | m/min | 0.6 to 9999.9 m/min | 0.6 to 400.0 m/min |  
                                    | COUNT | 0 to 99999 COUNT | 0 to 99999 COUNT |  
                                    | ms | 0.6 to 9999.9 ms | 2.5 to 9999.9 ms |  | 
                    
                        | Reflection detection distance | 20 to 300 mm | 
                    
                        | Display | 5-digit LED, with backlight (character height: 10.2 mm) | 
                    
                        | Measurement time | Within 1 s +  time required for one cycle (however, when the rotation is less than 60 r/min, twice the time required for one cycle (MAX)) | 
                    
                        | Display update time | Approx. 1 s | 
                    
                        | Measurement accuracy | Displayed value* x (±0.02 %) ± 1 count* The displayed value is the count value excluding figures after the decimal point.
 
                        
                            
                                
                                    | Note:   | ▉ | The measurement accuracy of the circumferential speed depends on the number of rotations of the rotating object. |  
                                    | ▉ | The measurement accuracy given above is for non-contact measurement. Measurement errors caused by hand shake are not included. With contact measurement, the smoothness and accuracy of the contact tip are added to the above value. |  | 
                    
                        | Peak hold function | Maximum value (MAX), minimum value (MIN) | 
                    
                        | Memory function | 20 data (MAX) | 
                    
                        | Over-range function | The over-range alarm (ERROR mark) is displayed when the measured value exceeds the display range. | 
                    
                        | Rotation upper limit alarm function | The upper limit alarm ( ↑ mark) is displayed when the number of rotations exceeds the preset upper limit value. | 
                    
                        | Line speed calculation function | •Calculates the line speed from the preset diameter value (mm) and the measured number of rotations • Use the KS-100/200 circumferential rings
 | 
                    
                        | Accumulating function | Provides a cumulative count of the input signal pulses | 
                    
                        | Cycle measurement function | Measures the input pulse cycle (however, when the cycle is less than 1 s, measures the mean value of the input pulses) | 
                    
                        | Analog output | Output voltage : 0 to 1 V/0 to F.S. (Full scale can be set arbitrarily.) Conversion method : 10-bit D/A conversion
 Linearity : ±1 %/F.S.
 Output update time : Within 50 ms + 1 cycle
 Temperature stability : ±0.05%/FS/°C (span & zero)
 Setting error : ±0.5 %/F.S.
 Load resistance : At least 100 kΩ
 | 
                    
                        | Pulse output | Output voltage : Hi level = At least +4.5 V, Lo level = Up to +0.5 V Output logic : Positive logic
 Load resistance : At least 100 kΩ
 | 
                    
                        | Operating temperature | 0 to 40 °C | 
                    
                        | Storage temperature | -10 to 50 °C | 
                    
                        | Power source | Four AAA alkaline batteries or exclusive AC adapter (PB-7090 option) | 
                    
                        | Battery life | At least 32 hours (when the backlight is OFF) At least 8 hours (when the backlight is ON)
 | 
                    
                        | Low battery alarm indicator | A low battery alarm mark (LOW) is displayed when the battery voltage falls below 4.4 V. | 
                    
                        | Outer dimensions | 180.5 (W) X 47.5 (H) X 66 (D) mm 237.2 (W) X 47.5 (H) X 66 (D) mm (with the contact adapter)
 | 
                    
                        | Weight (including batteries) | Approx. 267 g Approx. 329 g (with the contact adapter)
 | 
                    
                        | Accessories | Contact adapter (HT-0502) 1 Contact tip for rotation measurement (KS-300) 1
 Circumferential ring (KS-200) 1
 Reflective marks (12-mm square; 25 pcs.) 1 sheet
 AAA alkaline batteries 4
 Carrying case 1
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                        | Peripherals (sold separately)
 | 
                        AX-501 Signal output cable (2-m length) (used for both analog and pulse outputs) ø2.5 pin plug—CO2 (BNC) plug HT-0522 Magnetic stand + HT-0521A Stand jig LA-0203A Measurement tripod (Used in combination) PB-7090 AC adapter (100 to 240 VAC) HT-0502 Contact adapter KS-100 Circumferential ring (mm/s) KS-200 Circumferential ring (m/min) KS-300 Contact tip (for rotation measurement) KS-700 Extension shaft for KS-300 HT-011 Reflective marks (10 sheets/pack) |