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The Model 2003 includes all of the features of the Model 2000 with the addition of Cab Filters. The Model 2003 was designed for railroads using 60Hz and 100Hz coding systems.
Electrical Specifications
DC Voltage | |
Ranges | 0.6, 3, 15, 60, and 300 VDC. |
Accuracy | ±1.5% of full scale 0 to 50 C. ±2.5% of full scale -40 to 85 C. |
Sensitivity | 1000 ohms per volt. |
Overload | Continuous: 20 VRMS or 5 times full scale, whichever is greater, not to exceed 600 VRMS. Ten seconds: 30 VRMS or 10 times full scale, whichever is greater, not to exceed 700 VRMS. |
DC milliAmps | |
Ranges | 15, 60, and 300 mADC. |
Accuracy | ±1.5% of full scale 0 to 50 C. ±2.0% of full scale -40 to 85 C. |
Burden Volts | 60 mV nominal at full scale. Leads and fuse add 250 milliohms typical resistance. |
Overload | Fuse blows before damage |
DC Amps | |
Ranges | 1.5, 6, and 30 Amps DC. |
Accuracy | ±1.5% of full scale 0 to 50 C. ±2.0% of full scale -40 to 85 C. |
Burden Volts | 60 mV nominal at full scale. Leads add 34 milliohms typical resistance. Fuse in 1.5 Amp range adds 30 milliohms typical resistance. |
Overload | For the 1.5 Amp range, the fuse blows before damage. The 6 Amp and 30 Amp ranges are unfused but can withstand a 50 amp overload for 30 seconds. |
Common DC Specifications | |
NMRR | >60 dB at 25 Hz, Code Function switch in NORM position. >35 dB at 60 Hz and >60 dB at 96 Hz, Code Function switch in PEAK or TIMING position. |
Polarity Detect | All DC functions indicate upscale. A red NEG indicator lights for inputs of negative polarity. For zero input, the NEG indicator is off. |
AC Voltage | |
Ranges | 1.5, 3, 15, 150, 300, and 600 VAC. |
Accuracy | ±3.0% of full scale 0 to 50 C. ±3.5% of full scale -40 to 85 C. |
Sensitivity | 288 ohms per volt. |
Overload | Continuous: 20 VRMS or 5 times full scale, whichever is greater, not to exceed 700 VRMS. Ten seconds: 30 VRMS or 10 times full scale, whichever is greater, not to exceed 700 VRMS. |
AC Amps | |
Ranges | 1.5, 6, and 30 Amps AC. |
Accuracy | ±1.5% of full scale 0 to 50 C. ±2.0% of full scale -40 to 85 C. |
Burden Volts | 60 mV nominal at full scale. Leads add 34 milliohms typical resistance. Fuse in 1.5 Amp range adds 30 milliohms typical resistance. |
Overload | For the 1.5 Amp range, the fuse blows before damage. The 6 Amp and 30 Amp ranges are unfused but can withstand a 50 amp overload for 30 seconds. |
Common AC Specifications | |
Calibration | Average responding, RMS calibrated. |
Freq. Response | 25 Hz to 400 Hz for rated accuracy. |
60 Hz Filter | 57 Hz to 63 Hz ±1.5% additional level error. 25 Hz > 40 dB (99.0% suppression) 96 Hz > 40 dB (99.0% suppression) |
100 Hz Filter | 92 Hz to 100 Hz ±1.5% additional level error. 60 Hz >34 dB (98.0% suppression) 120 Hz >20 dB (90.0% suppression) 156 Hz >47 dB (99.6% suppression) |
200 Hz Filter | 196 Hz to 204 Hz ±1.5% additional level error. 156 Hz >20 dB (90.0% suppression) 250 Hz >20 dB (90.0% suppression) |
250 Hz Filter | 245 Hz to 255 Hz ±1.5% additional level error. 156 Hz >38 dB (98.7% suppression) 200 Hz >20 dB (90.0% suppression) |
Code Measurement Specifications
Peak Level Measurements | |
Peak Hold | Pointer will deflect to the peak level of the input signal. For repetitive peaks within a ±4% level window, 25 samples are averaged, then no further updates occur unless the level exceeds the captured peak. |
Peak Follow | Pointer will deflect to the peak level that is at least 25% of the previously displayed peak. |
Level Stability | For a peak to be detected, the signal must remain level stable within ±4.0% typically for a period of 10 milliseconds. |
AC Rejection for DC Functions | AC signals greater than 60 Hz and up to five times the level of the DC signal to be measured will typically introduce less than 3% additional error in the level measurement. |
DC Rejection for AC Functions | DC signals up to five times the level of the AC signal to be measured will typically introduce less than 3% additional error in the level measurement. |
Timing Measurements | |
On Time | Range: 0 to 100%. |
Accuracy | ±3% of full scale from 10% to 100%. |
Zero Offset | ±3.0% of full scale max. |
Rate | Range: 30 to 500 cycles per minute. |
Accuracy | ±3% of scale length. Zones: 50 cpm: 47.5 to 50.75 cpm. 75 cpm: 71.0 to 77.0 cpm. 120 cpm: 118.0 to 125.0 cpm. 180 cpm: 175.9 to 187.2 cpm. 270 cpm: 263.9 to 276.5 cpm. 420 cpm: 410.5 to 423.0 cpm. |
Timeout Period | 2 to 8 seconds is required for an update on the timing functions. Two consecutive readings within 7% of full scale of each other are averaged. |
Minimum Input | For correct Rate and On Time measurements, a minimum input of 13% of full scale is required. The trigger points are automatically set by the software. The valley point must be typically 60% or less of the captured peak. |
Ohmmeter
Voltage Sense Mode | |
Range | 15 V DC auto-polarity or AC to 1 KHz typical. NEG indicator is on for zero and negative inputs. |
Accuracy | ±20% -40 to 85 C. |
Sensitivity | 1000 ohms per volt. |
Overload | Continuous: 50 VRMS. Ten seconds: 120 VRMS. |
Resistance Measurement Mode | |
Ranges | R x 1 and R x 100. |
Center Scale | 5 and 500 ohms. |
Accuracy | ±2.0% of scale length ±0.5 ohms 0 to 50 C. ±3.0% of scale length ±0.5 ohms -40 to 85 C. |
Open Circuit Voltage | 1.0 to 1.8 VDC. The VOM jack is negative with respect to the COM jack. |
Test Current | R x 1 range: 400 mA max. R x 100 range: 3.6 mA max. |
Overload | R x 1 range: fuse blows before damage. R x 100 range: 35 VRMS continuous. |
Dry Contact Functions | |
Normal | Pointer follows contact closure. Open: zero ±3.0% of full scale. Closed: full scale ±0.5%. |
On Time | Range: 0 to 100 %. |
Accuracy | ±2% of full scale from 10% to 100%. Zero offset: ±3.0% of full scale max. |
Rate | Range: 30 to 500 cycles per minute. |
Accuracy | ±3% of scale length. |
Peak Hold | Pointer will deflect to full scale and remain there with a 2.0 millisecond or longer contact closure. |
Allowable Contact Resistance: | 0 to 100 ohms. |
Test Voltage | 7.5 to 15 VDC. The VOM jack is positive with respect to the COM jack. |
Test Current | 830 uA max. |
Overload | Continuous: 50 VRMS. Ten seconds: 120 VRMS. |
Power Requirements | |
Batteries | Two, 9 volt alkaline batteries (NEDA 1604) One, 1.5 volt alkaline D-cell (NEDA 13F) |
Expected Life | Normal operation: 320 hours. Sleep mode: 2000 hours. |
Cutoff Voltage | 10.5 volts minimum for both 9V batteries in series. The ohmmeter circuit is designed to properly zero with a D-cell battery from 1.0 to 1.8 volts. |
Sleep Timer | Test set falls asleep after 3 to 7 minutes with no meter deflection greater than 1% of full scale typical. |
Meter Movement | |
Full scale | 100 uA ±1% |
Balance | ±1.0% of full scale. |
Construction | Taut band construction, shock mounted. 100 degree deflection, critically damped. Mirrored. High strength magnet. |
Physical Specifications | |
Size | 5.0" wide x 6.5" high x 3.2" deep. |
Weight | Approximately 2.75 pounds, 4.75 pounds with case and leads. |
Moisture Resistance | Test Set is not damaged by exposure to rain. |
Temperature | Operating and storage: -40 to 85 C. |
Humidity | 0 - 95% non-condensing. |
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