Laurel Electronics Laureate Frequency, Rate & Period Meter - Manual (Page 2)

LAUREL ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 2
Specifications
Display
Readout
Display Range
Zero Adjust
Span Adjust
Indicators 6 LED digits, 7-segment, 14.2 mm (.56"), red or green.
-999999 to +999999, XXXXEX notation beyond 999999
-999999 to +999999
0 to 999999
Four LED lamps
Inputs
Types
Signal Ground
Channel A Frequency
Channel B Frequency
Minimum Signal
Maximum Signal
Noise Filter
Contact Debounce AC, pulses from NPN, PNP transistors, contact closures, magnetic pickups.
Common ground for channels A & B
0.005 Hz to 1 MHz
0.005 Hz to 250 kHz
Nine ranges from (-12 to +12 mV) to (+1.25 to +2.1V)
250 Vac
1 MHz, 30 kHz, 250 Hz (selectable)
0, 3, 50 ms (selectable)
Update Rate
Freq. Technique
Conversion Time
Gate Time
Time Before Zero Out Inverse period
Gate time + 30 ms+ 0-2 signal periods
Selectable 10 ms to 199.99 s
Selectable 10 ms to 199.99 s
Accuracy
Time Base
Span Tempco
Long-term Drift Crystal calibrated to ±2 ppm
± 1 ppm/°C (typ)
± 5 ppm/year
Power
Voltage, standard
Voltage, optional
Frequency
Power Isolation 85-264 Vac or 90-300 Vdc (DC operation not UL approved)
12-32 Vac or 10-48 Vdc
DC or 47-63 Hz
250V rms working, 2.3 kV rms per 1 min test
Excitation Output (standard)
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
Current compliance
Voltage compliance
Scaling
Resolution
Isolation 4-20 mA, 0-20 mA, 0-10V, -10 to +10V (single-output option)
4-20 mA, 0-20 mA, 0-10V (dual-output option)
2 mA at 10V ( > 5 kΩ load)
12V at 20 mA ( < 600Ω load)
Zero and full scale adjustable from -99999 to +99999
16 bits (0.0015% of full scale)
250V rms working, 2.3 kV rms per 1 min test
(dual analog outputs share the same ground)
Relay Outputs (optional)
Relay Types
Current Ratings
Output common
Isolation 2 Form C contact relays or 4 Form A contact relays (NO)
2 or 4 Form A, AC/DC solid state relays (NO)
8A at 250 Vac or 24 Vdc for contact relays
120 mA at 140 Vac or 180 Vdc for solid state relays
Isolated commons for dual relays or each pair of quad relays
250V rms working, 2.3 kV rms per 1 min test