The Large Display Timer and Cycle Counter is a versatile display that functions as an Elapsed Timer or Preset Timer, with full-featured user programmability. The meter includes a built-in Cycle Counter, relay output and serial communications capability. The 6 digit displays are available in either 2.25" or 4" high red LED digits with adjustable display intensity. The 2.25" high models are readable up to 130 feet. The 4" high models are readable up to 180 feet. Both versions are constructed of a NEMA 4 enclosure in light weight aluminum. The Timer has two signal inputs and eight input operating modes. These modes provide level active or edge triggered start/stop operation. The Timer features 18 selectable timer ranges to cover a wide variety of timing applications. The built-in Cycle Counter can be linked to timer operation to count timing cycles, or function as a totally independent counter, accepting count speeds up to 500 Hz. The display can be toggled either manually or automatically between the Timer and Counter values. In addition to the Timer/Counter inputs, a programmable User Input is provided to perform a variety of meter functions. DIP switches are used to configure the inputs for current sinking (active low) or current sourcing (active high) operation. The Setpoint Output can be assigned to the Timer or Counter value, and configured to suit a variety of control and alarm requirements. The meter also includes jumper selectable RS232 or RS485 se
The LD Large Display Timer and Cycle Counter is a versatile NEMA 4X‑rated instrument that can function as an elapsed or preset timer, a 5‑digit cycle counter, and includes a relay output and selectable RS‑232/RS‑485 communications. The unit is available with 2.25" or 4" high red LED digits, adjustable intensity, and can be powered from AC (85‑250 VAC) or DC (11‑16 VDC).
The manual covers safety precautions, installation guidelines, wiring diagrams, DIP‑switch configuration, and detailed programming of timer ranges, input filtering, and cycle‑counter parameters. EMC recommendations and environmental limits are also provided to ensure reliable operation in industrial settings.
| Display size | 2.25" or 4" high red LED digits |
|---|---|
| Power – AC input | 85 to 250 VAC, 50/60 Hz, 14 VA |
| Power – DC input | 11 to 16 VDC @ 400 mA max, 7 W |
| Power – DC output | 11 to 16 VDC @ 50 mA |
| Timer display resolution | 0.001 sec (minimum), 1 hr (maximum) |
| Timer accuracy | +0.01 % |
| Timer range | 0 to 999 999 (6‑digit) |
| Cycle counter range | 0 to 99 999 (5‑digit) |
| Relay output rating | 5 A @ 120/240 VAC or 28 VDC |
| Operating temperature | 0 °C to 50 °C |
| Storage temperature | -40 °C to 70 °C |
| Weight (LD2 model) | 4.5 lb (2.04 kg) |
| Weight (LD4 model) | 10.5 lb (4.76 kg) |
The timer offers 18 selectable timer ranges covering seconds, minutes, hours, and days.
The device includes jumper‑selectable RS‑232 (half‑duplex) or RS‑485 (multi‑point) communications, both supporting 300‑38400 baud rates.
When the Input B filter is off, the maximum count rate is 500 Hz; with the filter on it is limited to 10 Hz.