| Display |
| Model 2491: |
1 display, 1-3 functions - Select to display |
| Model 2492: |
2 displays, dual function |
| Model 2493: |
3 displays, Triple function |
| |
| Model 2491, 2492: |
4 1/2 digit red, 0.56" high LEDs |
| Model 2943: |
4 digit red LED (9999 counts) -
0.56" high LEDs |
| Display Color: |
Red |
| Response time: |
| 2491, 2492: |
200ms min. update time for 2491, 2492 |
| 2493: |
160ms min. update time for V/V/V, A/A/A, Watt/VAR/PF |
| 320ms min. update time for V/A/Hz |
| Auxulliary
power |
| 2491: |
120V or 240V AC (±15%), 45-65 Hz, 4.5VA max. |
| 2492: |
120V or 240V AC (±15%), 45-65Hz, 4.5VA max. |
| 2493: |
120 or 240V AC (±15%), 45-65 Hz, power consumption 10VA max. with
Optional 24, 48, 125 VDC Power supplies |
| Input Rating |
| Current: |
0 to 1A AC; 0 to 5A AC |
| Voltage: |
0-120V AC, 0-240V AC (W/VAR/PF/PA)
0-150V AC, 0-300V AC (Volt/Freq) |
| Frequency: |
50/60Hz and 400Hz |
Input Range: |
| Rated current: |
A/W/VAR: 0-200%; PF/PA : 20-200% |
| Rated voltage: |
V/W/Var: 120%; FPA: 50-120%; Frequency:20-120% |
| Input Frequency Rate |
| Volts, Amps, Hertz: |
45-65Hz up to the 9th harmonic measuring capability
2% of specified accuracy |
| Sustained Input: |
| Rated current: |
A/W/VAR/PF/PA: 200% continuous; 10x rating for 5 seconds |
| Rated voltage: |
V/W/Var/Freq: 120% continous; PF/PA: 150% continous |
| Burdent: |
| Rated current: |
<0.2 VA per element |
| Rated voltage: |
120V; <0.2 VA per element, 240V; <0.4 VA per element |
| Accuracy: |
Reference condition:
25°C, 45-74%RH, at
rated input 60Hz sine
wave, 30 min. warmup |
Voltage:
Current:
Watt/VAR: |
± 0.2% of reading ± 0.1% of full scale |
| Power Factor |
±0.05 Power factor |
| Phase Angle: |
±0.5° Phase Angle |
| Frequency: |
±0.01 Hz @ 40-70Hz, 0.1Hz @ 300-500 Hz |
| Analog Output |
0 to 1mA,
0 to ± 1mA: |
10VDC compliance into 10k ohm load maximum |
4 to 20mA,
12 ± 8mA: |
15VDC compliance into 750 ohm maximum |
| Rated voltage: |
120V; <0.2 VA per element, 240V; <0.4 VA per element |
| |
| Response Time: |
1 second maximum response time within ±i% of final value |
| Insulation voltage and resistance: |
| Input to output/case: |
2500V AC for 1 minute / more than 10 Megohm @ 500V DC |
| Aux. power to case: |
AC: 2000V AC for 1 minute / more than 10 Megohm @ 500V DC
and DC: 500V DC minimum / 10 Megohm minimum @ 100V DC |
| Aux. power to output: |
AC: 2000V AC for 1 minute / more than 10 Megohm @ 500V DC
and Resistance DC: 500V DC minimum / 10 Megohm minimum @ 100V DC |
| Output of case: |
1000VAC for 1 min./ more than 10 Megohm @ 500VDC |
| Temperature Range |
| Operating Temp.: |
-20 to +60°C at 90% RH maximum (non-condensing) |
| Storage Temp: |
-40 to 85 °C |
| Temp. Coeff.: |
| Display and Comm: |
±150 PPM/°C maximum of full scale |
| Analog Output: |
±250 PPM/°C maximum of full scale |
| General |
| Dimensions: |
W x D x H = 4.33 x 6.54 x 4.33 inches |
| Weight: |
| 2491 |
1000g (2.2 lbs) |
| 2492 |
1100G (2.4 lbs) |
| 2493 |
1250G (2.75 lbs) |
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