Self--powered Tachometer H7ER Subminiature Tachometers With Improved Appearance and Features Large display with 8.6 mm (0.338 in) height Available with backlit LCD Revolutions displayed up to five digits. PNP/NPN DC voltage input available Switchable dual revolution display type available (-NV1 models) extended up to -- 1 10000 m rpm Dual revolution display according to -- 1 encoder resolution used 1000 s -- 1 -- 1 rps /1000 m rpm or 1000.0 s -- 1 rps /1000.0 m rpm NEMA 4/IP66 front Replaceable battery New black case Ordering Information TACHOMETERS Max. revolutions displayed (applicable encoder resolution) Count input Displayy --1 --1 1000 s rps (1 pulse/rev.), 1000.0 s rps (10 pulse/rev.), --11 --11 11000000 mm rrppmm ((6600 ppuullssee//rreevv..)) 11000000..00 mm rrppmm ((660000 ppuullssee//rreevv..)) --1 10000 m rpm (60 pulse/rev.) (switchable) Part number PNP/NPN 7-segment LCD H7ER-NV-BH H7ER-NV1-BH uuninivveersrsalal DCDC with backlight vollttage iinputt 7-segment LCD H7ER-NV-B H7ER-NV1-B No-voltage input 7-segment LCD H7ER-N-B --- MODEL NUMBER LEGEND H7ER - N - 4 12 3 1. Count Input 3. Case Color None: No-voltage input B: Black V: PNP/NPN universal DC voltage input 4. Display None: 7-segment LCD without backlight 2. Number of Digits H: 7-segment LCD with backlight None: 4 digits 1: 5 digitsH7ER H7ER ACCESSORIES (ORDER SEPARATELY) Item Part number Replacement Battery Y92S-36 Wire-wrap Terminal (Set of two Terminals) Y92S-37 Flush Mountingg Adapter 26 mm 45 mm Y92F-75 24.8 mm 48.8 mm Y92F-77B Specifications GENERAL Item H7ER-NV-B H7ER-N-B H7ER-NV1-B H7ER-NV-BH H7ER-NV1-BH Operating mode Up type Mounting method Flush mounting External connections Screw terminals, Wire-wrap Terminals (See Note 3.) Display 7-segment LCD with or without backlight (character height: 8.6 mm) (See Note 4.) Number of digits 4 5 Count input PNP/NPN universal DC No-voltage input PNP/NPN universal DC voltage input voltage input Max. counting speed 1kHz 10 Hz --1 --1 Max. revolutions displayed (See 1,000 s rps (When encoder resolution of 1,000.0 s rps (When encoder Note 5.) 1 pulse/rev is used.) resolution of 10 pulse/rev is used.) --1 --1 1,000 m rpm (When encoder resolution of 1,000.0 m rpm (When encoder 60 pulse/rev is used.) resolution of 600 pulse/rev is used.) --1 10,000 m rpm (When encoder resolution of 60 pulse/rev is used.) (Switchable with switch) Attachment Waterproof packing, flush mounting bracket, revolution unit labels (See Note 5.) Approved standard UL508, CSA C22.2 No.14, Lloyds Conforms to EN61010-1/IEC61010-1 (Pollution degree2/overvoltage category ) Conforms to VDE0106/P100 Note: 1. Reset is not available. 2. When there is no input, the display will be 0.0 or 0. 3. Wire-wrap Terminals (Y92S-37) can be ordered separately 4. Only PNP/NPN Universal DC voltage input models are available with a backlight. --1 --1 5. rpm, rps, s , and m , labels are included. RATINGS Item H7ER-NV -B H7ER-N-B H7ER-NV -BH Supply voltage Backlight model: 24 VDC (for backlight lit) Not required (powered by battery) No-backlight model: Not required (powered by battery) Count input High (logic) level: 4.5 to 30 VDC No voltage input LowLow (l(logiogicc)) lleevveell:: 00 ttoo 22 VVDCDC MMaaxxiimmuumm sshorthort-cciircrcuiuitt iimmpedancedance:e: 1010 kk mamaxx.. (Input impedance: Approx. 4.7 k) Short-circuit residual voltage: 0.5 V max. Reset input Minimum open impedance: 750 k min. Max. counting speed 5-digit models: 10 Hz 1kHz 4-digit models: 1 kHz Minimum signal width 10 Hz: 0.05 ms 1kHz: 0.5 ms Terminal screw tightening torque 0.98 N mmax. Ambient temperature Operating: --10Cto55C (with no icing) Storage: --25Cto65C (with no icing) Ambient humidity Operating: 25% to 85% 2