Model 187 & 189
Users Manual
Function
Frequency
Duty Cycle
Pulse Width
Temperature
Range
500.00Hz
5.0000 kHz
50.000 kHz
999.99kHz
10.00% to 90.00 %
499.99ms
999.9ms
−200 to +1350 ° C
Resolution
0.01 Hz 1
0.0001 kHz
0.001 kHz
0.01kHz
0.01%
0.01ms
0.1ms
0.1° C
Accuracy
± | (0.0050 % + 1) |
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± | ((voltage range/input voltage) X 300 counts) 5,6 |
± | (3 % X (voltage range/input voltage) + 1 count) 5,6 |
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± | ( 1% of reading + 1 ° C) 2,3 |
MIN MAX AVG
− 328 to +2462 ° F | 0.1 ° F |
Response: 100 ms to 80 %
± ( 1% of reading + 1.8 ° F) 2,3 |
Specified accuracy ± 12 counts for changes > 200 ms in duration. (± 40 counts in AC for changes > 350 ms and inputs > 25 % of range)
FAST MN MX | 250 ∝ s 4 |
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1. Reading will be 0.00 for signals below 0.5 Hz.
Specified accuracy ±100 counts up to 5,000 count (full range) reading. For higher peak readings (to 20,000 counts), specified accuracy ± 2% of reading.
2. Accuracy specification is relative to the
3.For ambient temperature changes of ± 5 ° C, rated accuracy applies after 1 hour.
4.For repetitive peaks; 2.5 ms for single events. Use DC function settings below 20 Hz. 50 mV range not specified.
5.Frequency greater than 5 Hz, except for VDC, 500 mVDC and 3000 mVDC functions; 0.5 Hz to 1 kHz. Signals centered around trigger levels.
6.Range/input ratios also apply to current functions. 500 counts or 5 % for 10 A ranges.
