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Laureate™ Stopwatch Timers
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Features
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Description
Display
Other Features and Options
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Specifications
| Display | |
| Readout Range Indicators |
6 LED digits, 7-segment, 14.2 mm (.56"), red or green. -999999 to +999999 Four LED lamps |
| Inputs | |
| Types Grounding Minimum Signal Maximum Signal Noise Filter Contact Debounce |
AC,
pulses from NPN, PNP transistors, contact closures, magnetic pickups. |
| Stopwatch Mode | |
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Timing Modes: |
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| Accuracy | |
| Time Base Span Tempco Long-term Drift |
Crystal
calibrated to ±2 ppm |
| Power | |
| Voltage, standard Voltage, optional Frequency Power Isolation |
95-240 Vac ±10% or 90-300 Vdc 12-30 Vac or 10-48 Vdc DC or 47-63 Hz 250V rms working, 2.3 kV rms per 1 min test. |
| Excitation Output | |
| 5
Vdc 10 Vdc 24 Vdc Output Isolation |
5 Vdc ±5%, 100 mA 10 Vdc ±5%, 120 mA 24 Vdc ±5%, 50 mA 50 Vdc to meter ground |
| Analog Output (optional) | |
| Output
levels Compliance Scaling Resolution Isolation |
0-10V,
0-20 mA, 4-20 mA (jumper selectable) 2 mA at 10V (5 kOhm load), 12V at 20 mA (0-60 ohm load) Zero and full scale adjustable from -99999 to +99999 12 bits (0.025% of full scale) 250V rms working, 2.3 kV rms per 1 min test |
| Dual Contact Relay Outputs (optional) | |
| Relay
Type Load Rating Isolation |
Form C 8A at 250 Vac or 24 Vdc 250V rms working, 2.3 kV rms per 1 min test |
| Dual Solid State Relay Outputs (optional) | |
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Relay Type Load Rating Isolation |
SPST, normally open,
Form A 120 mA at 130 Vac or 170 Vdc, 28 ohms series resistance. 250V rms working, 2.3 kV rms per 1 min test |
| Serial Data I/O (optional) | |
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Board Selections Protocols Data Rates Digital Addresses Isolation |
RS232, RS485, Modbus RS485 Modbus RTU, Modbus ASCII, simpler Laurel ASCII 300 to 19200 bps 247 (Modbus), 31 (Laurel ASCII), 250V rms working, 2.3 kV rms per 1 min test |
| Environmental | |
| Operating
Temperature Storage Temperature Relative Humidity Protection |
0°C
to 60°C -40°C to 85°C 95% at 40°C, non-condensing NEMA-4X (IP-65) when panel mounted |
| Electrical Connections | |
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Applications
Stopwatch Mode |
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The stopwatch mode is used to time single events between start and stop pulses on the same channel. Duration of a single wave shape can be measured by tying the A and B channels together. |
Timing Process Dynamics |
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The start and stop pulses used for timing can be generated by the dual relay board in a Laureate analog panel meter or digital counter. For instance, the start and stop pulse edges can be created as temperature passes two alarm setpoints, or astemperature cycles in a hysteresis control mode. |
Replacing an Oscilloscope with a Laureate Meter |
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An oscilloscope is great for viewing and timing pulses in a lab. However, in fixed installations where digital timing accuracy and control outputs are required, a low-cost Laureate time interval meter will be the instrument of choice. Resolution to 0.2 µs is feasible. |
| Instrumenting a Pulsed Laser System | |
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Some of the many possibilities in instrumenting a pulsed laser system with Laureate dual-channel counters: elapsed time, number of pulses, pulse width, pulse separation, duty cycle, and pulse rep rate. |
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Ordering
Guide
Laureate™ Stopwatch Meters
| Create a model
number in this format: L60101FR. This example calls out a Laureate
counter with an Standard Main Board with red LEDs, 95-240 Vac ±10% power,
dual 8A contact relays, no second output, RS-232 serial output,
and a dual-channel frequency signal conditioner. Includes plug-in screw
terminals. |
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Main Board |
L5 Standard Main Board, Green LEDs. L6 Standard Main Board, Red LEDs. |
$230 $230 |
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| Note: Use of the Extended Main Board makes this counter also suitable for A-B time interval, frequency, rate, period, square root of rate, up or down total, arithmetic functions, simultaneous rate and total, phase, duty cycle, batching, and custom curve linearization. | ||||
| Power |
0 Isolated 95-240 Vac ±10% & 90-300 Vdc 1 Isolated 12-30 Vac & 10-48 Vdc. |
NC $30 |
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Setpoint Output |
0 None. 1 Dual 8A Contact Relays. 2 Isolated Dual Solid State Relays. |
NC $80 $55 |
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Analog Output |
0 None. 1 Isolated 0-20 mA & 0-10 V. |
NC $90 |
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Digital Interface |
0 None. 1 Isolated RS-232. 2 Isolated RS-485. 4 Isolated Modbus RS-485. |
NC $60 $80 $90 |
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Input Type |
FR Dual-Channel Pulse Input Signal Conditioner. | NC | ||
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Add-on Options |
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$30 NC $19 $39 $40 $140 $180 |
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Resource Pages |
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3183-G Airway Avenue Costa Mesa, CA 92626, USA |
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