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.
Specifications
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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