| Specification for F35 Frequency Meter |
| Display |
| Type |
7-segment, red LED |
| Height |
0.56" (14.2mm) |
| Overrange indication |
Most significant digit = "1"; other digit blank |
| Power Requirements |
| AC Voltages |
120 or 220VAC, ±10% 50/60Hz |
| Power Consumption |
2.5VA min./4VA max. |
| ACCURACY @25°C |
| 200 Hz |
±0.2% of input ±0.2 Hz |
| 2Khz |
±0.2% of input ± 2Hz |
| Input Level |
500mV to 250V RMS at 1.0MΩ impedance OR 5V to 24V Square Wave (DC offset 2V maximum) |
| Resolution |
| 200Hz |
0.1Hz |
| 2kHz |
1Hz |
| Environmental |
| Operating Temperature |
0 to 55°C |
| Storage Temperature |
-10 to 60°C |
| Relative Humidity |
0 to 85% non-condensing @ 40°C |
| Temperature Coefficient |
(±0.05% of input ± 0.5 count)/°C |
| Warm-up Time |
Less than 15 minutes |
| Conversion |
| Technique |
Frequency-to-voltage |
| Rate |
3 samples per second, nominal |
| General Specifications |
| Display |
| Type |
7-segment, red LED |
| Height |
0.56" (14.2mm) |
| Decimal Point |
user-programmable,
internally or on the terminal block |
| Overrange indication |
most significant digit = "1"; other digits
blank |
| Polarity |
Automatic, with "-" indication,
"+" indication implied |
| Power Requirements |
| AC Voltages |
120 or 220VAC, ±10% 50/60Hz |
| DC Voltages |
9-32DCV, ±1% |
| Power Consumption |
F35: 3VA, F45: 2VA |
| ISOLATION |
250V RMS MAX |
| Accuracy @25°C |
| F45 DC Process/Voltage |
±0.02% of reading ± 1 count |
| F35 DC Process/Voltage |
±0.1% of reading ± 1 count |
| F45 DC Current |
±0.05% of reading ±1 count
2A ± 5 counts 5A ± 5 counts |
| F35 DC Current |
±0.1% of reading ± 1 count
2A ± 5 counts, 5A ± 5 counts |
| F45 AC Voltage/Current |
±0.5% of reading ± 35 counts |
| F35 AC Voltage/Current |
±1% of reading ± 5 counts (45Hz-1KHz) |
| Environmental |
| Operating Temperature |
0 to 55°C |
| Storage Temperature |
-10 to 60°C |
| Relative Humidity |
0 to 85% non-condensing |
| Warm-up Time |
Less than 15 minutes |
| Noise Rejection |
| NMRR |
F35=50dB, 50/60Hz; F45=60dB, 50/60Hz |
| CMRR |
(w/1K unbalanced @ 60Hz) 90dB min. |
| A To D Conversion |
| Technique |
Dual slope integration |
| Rate |
F35=3 samples per second, nominal;
F45=2.5 samples per second,nominal |
| Mechanical |
| Bezel |
3.78" x 1.89" x .51" |
| Depth |
2.94" |
| Panel Cutout |
3.62" X 1.77" |
| Case Material |
94V-1, UL rated Noryl® |
| Weight |
9.0oz (255.1g) |
| Temperature Coefficient |
| F35 AC/TRMS (Voltage/Current) |
(±0.1% ± 0.5 count)/°C |
| F35 DC (Voltage/Current/Process) |
(±0.01% ± 0.05 count)/°C |
| F45 AC (Voltage/Current) |
(±0.05% ± 0.5 count)/°C |
| F45 DC Current |
(±0.01% ± 0.1 count)/°C |
| F45 DC (Voltage/Process) |
(±0.05% ± 0.1 count)/°C |