If you are looking to outfit your control panel with timers that have an attractive LED display, consider the new PTC-20 series that deliver functionality at competitive prices.
Designed for you to best fit the correct timer to your application, the PTC-20 series is divided into three separate models. The PTC-21 base unit offers five field-selectable operating modes and time ranges as well as a host of other convenient features. The high performance PTC-23 model offers advanced functions such as dual setpoints and 1 ms resolution. The PTC-22 repeat cycle model provides a repeat cycle (batch stop, batch continue) and interval modes specifically tailored for cyclical operations.
With ultimate simplicity in mind, the PTC-20 series utilizes an intuitive button-per-digit method for setpoint input and easy to follow scroll-thru menus for programming. The dual line display optimizes the interface by indicating both the present time value and the setpoint, while up to 8 annunciator lights provide status. Multi-level security enables shop floor access to be custom tailored to your needs.
Intended for tough industrial conditions, the PTC-20 Series offer a NEMA-4/IP65 rated front panel and a high degree of noise immunity. Choose from models with a 5 amp relay, which can directly drive a load, or solid state outputs for high speed applications.
GENERAL SPECIFICATIONS Supply Voltage: 90 to 240 Vac, 50/60 Hz, or 24 Vac/Vdc Power Consumption: <10 VA Resolution: Settable for time values in hours/minutes/seconds ranges Inputs Start and Reset: NPN or dry contact Activation Time: 4 ms (24 Vac/Vdc units), 21 ms (85 to 264 Vac powered units) Impedance: 10 kΩ Front-Panel Rating: IEC IP65 Operating Temperature: 0 to 55°C (32 to 131°F) Storage Temperature: -40 to 90°C (-40 to 194°F) Humidity: 5 to 95% RH, non-condensing Memory: Non-volatile Operation Time Ranges: Hours, minutes, seconds; hours, minutes; minutes, seconds Repeat Accuracy: ±0.01% Physical Dimensions: 48 H x 48 W x 85 mm D (1.89 x 1.89 x 3.35') Display: Dual-line, 4-digit, 7-segment LED, 8 mm H (0.31') Mounting: Panel-mount 45 x 45 mm (1.77 x 1.77'), cutout or DIN rail Wiring Connection: Screw terminals on an 11-pin socket Weight: 100 g (3.5 oz)
Base Model PTC-21 Output: Timed relay, DPDT (5 A) Operating Modes (Shown): On-delay, off-delay, on-delay (interval), interval and repeat cycle
Repeat Cycle PTC-22 Inhibit: NPN or dry contact Outputs: Relay: 2 SPDT (5 A), 15 ms latency Transistor: NPN Open Collector: 30 Vdc, 30 mA max Operating Mode (Shown): Repeat Cycle: Batch stop, batch continue and interval
High Performance PTC-23 Inhibit: NPN or dry contact Outputs: Relay: 2 SPDT (5 A), 15 ms max latency Transistor: NPN Open Collector: 30 Vdc, 30 mA max opto isolated Operating Modes: 17 different operating modes available (popular modes shown)
Rated 5 out of
Best everFor something that I knew nothing about, it was vary simple to use.
Date published: 2017-12-29
Rated 1 out of
PTC-21I bought this timer but have not used it yet. It is being used for a control panel for beer brewing. Everything looks nice, but I dont think you should have to buy the socket separately. The timer itself is 220.00 and then you have to shell out another 67.00 just to be able to use it. If I knew the socket was not included, I would look else where. I will update my review when my control panel is up and running.