H8GN Pre-set counters
World’s smallest compact preset counter/timer
The H8GN is a 1/32 DIN timer and counter in one. It is simple to switch between the timer and counter functions. During operation it is also possible to switch the display to monitor the totalising count value in 8 digits. Many sophisticatedfunctions come
as standard with H8GN.
• Size in mm (H×W×D) 24×48×83, 1/32 DIN sizehousing
• 8 digit display, 4 value and 4 set value
• Front mounting
• –999 to 9999
• 24 VDC
Functions Supply voltageOutputOrder code
Counter TimerNo communicationsRS-485
4 digits,N, F, C or K output modes
Total counter: 8 digits
Z: ON/OFF-duty adjustable flicker
24 VDCContact output (SPDT) H8GN-ADH8GN-AD-FLK
Rated supply voltage24 VDC
Operating voltage range85 to 110% of rated supply voltage
Power consumption 1.5 W max. (for max. DC load) (inrush current: 15 A max.)
External connectionsScrew terminals (M3 screws)
Terminal screw tightening torque0.5 Nm max.
AttachmentWaterproof packing, flush-mounting bracket
Display 7-segment, negative transmissive LCD time display (h, min, s) CMW, OUT, RST, TOTAL Present value (red, 7 mm high characters) set value (green, 3.4 mm high characters)
Digits PV: 4 digits, SV: 4 digits, when total count value is displayed: 8 digits (zeros suppressed)
Memory backup EEPROM (non-volatile memory) (number of writes: 100,000 times)
Counter Maximum counting speed30 Hz or 5 kHz
Counting range –999 to 9,999
Input modesIncrement, decrement, individual, quadrature inputs
Timer Timer modes Elapsed time (up), remaining time (down)
Inputs Input signals For counter: CP1, CP2, and reset
For timer: Start, gate, and reset
Input methodNo-voltage input (contact short-circuit and open input)
Short-circuit (ON) impedance: 1 k max. (approx. 2 mA runoff current at 0 ) Short-circuit (ON) residual voltage: 2 VDC max.
Open(OFF) impedance: 100 k min. Applied voltage: 30 VDC max.
Start, reset, gateMinimum input signal width: 1 or 20 ms (selectable)
Power reset Minimum power-opening time: 0.5 s
Control outputSPDT contact output: 3 A at 250VAC/30VDC, resistive load (cos = 1)
Minimum applied load 10 mA at 5 VDC (failure level: P, reference value)
Reset systemExternal, manual, and power supply resets (for timer in A, B, D, E, or Z modes)
Sensor waiting time 260 ms max.
(inputs cannot be received during sensor wait time if controloutputs are turned OFF)
Timer functionAccuracy of operating time and setting error
(including temperature and voltage effects)
Signal start: ±0.03% ±30 ms max. Power-ON start: ±0.03% ±50 ms max.
Operating storage –10 to 55°C (with no icing or condensation)
–25 to 65°C (with no icing or condensation)
Case color Rear section: Grey smoke front section: N1.5 (black)
Degree of protectionPanel surface: IP66 and NEMA Type 4X (indoors) rear case: IP20, terminal block: IP20
Size in mm (H×W×D)24×48×83