NLW-1000

The NLW-1000 wide-range logarithmic channel combines the functions of logarithmic counting and logarithmic current conversion to provide a continuous indication of reactor power from source level to full power. A remotely located pre-amplifier minimizes EMI and other sources of interference and adjustable discriminator and gain controls allow flexibility in channel calibration with existing detectors. A differentiator circuit provides continuous indication of rate of change of power, and self test functions can check count rate, current, period and high voltage. Provision is made for permissive operation by computer of all test functions.

NLW-1000 LOG WIDE-RANGE CHANNEL SPECIFICATIONS
INPUT RANGE
Counting: 0.1 CPS to >1E6 CPS
Current: 1E-6 to 1x 1E-3 Amperes
LINEARITY
(LOG CONFORMITY)
±2% Full Scale Equivalent Covering the Combined Counting and Current Regions
(Temperature Range of 20° to 30° C)
TEMPERATURE COEFFICIENT
±0.15% per °C (Maximum) Over the Temperature Range 10° to 55°C
RESPONSE TIME CONSTANTS
1E-4 to 1E-3 Amperes
1E-5 to 1E-4 Amperes
1E-6 to 1E-5 Amperes
1E4 to 1E5 Count/Sec
1E3 to 1E4 Count/Sec
1E2 to 1E3 Count/Sec
<1 mSec
<2 mSec
2.5 mSec
15 mSec
20 mSec
30 mSec
10 to 100 Count/Sec
1 to 10 Count/Sec
0.1 to 1 Count/Sec
0.3 Sec
3.0 Sec
30 Sec
OUTPUTS
Isolated: 1E-8 to 1E2 Log Power (%), -30 to +3 Second Period
Isolated: 0-10 V, 4-20 mA Full Scale
High Voltage (HV): 1000 Vdc @ 4 Watts Maximum
BISTABLE TRIPS
1 High Voltage
1 Period
4 Configurable Power (Increasing or Decreasing)
POWER
117 Vac ± 10%, 50/60 Hz @ 1.0 Amp
DIMENSIONS (Approximate)
Maximum 4.6 inches (W) x 8.3 inches (H) x 15.8 inches (D)
(16.7 (D) with connectors and front panel potentiometer)
WEIGHT (Approximate)
11 pounds