TB 9-6625-174-24
APPENDIX B
PERFORMANCE TABLES
UEI, Model DL250 Continued
Table B-177. DC Current (≤500 A).
Calibrator output
Test instrument
Limits (μA dc)
Applied1
Range
(μA dc)
(μA dc)
Min
Max
36
40
35.59
36.41
360
400
354.4
365.6
Step 10 a (1), connect TI VΩμA and COM terminals to calibrator OUTPUT terminals.
1
Table B-178. AC Current (≤500 A) (w/50 Turn Coil).
Calibrator output
Test instrument
Applied
Range
Limits (A dc)
(A ac)
(A ac)
Min
Max
0.72 @ 50 Hz
40
34.72
37.28
0.72 @ 400 Hz
40
34.72
37.28
7.2 @ 50 Hz
400
352.3
367.7
7.2 @ 400 Hz
400
352.3
367.7
Table B-179. Resistance.
Calibrator output
Test instrument
Limits (%/Ω)
Applied
Range
(Ω)
(Ω)
Min
Max
190
400
-1.053% (188.0)
+1.053% (192.0)
1.9 k
4k
-1.053% (1.880 k)
+1.053% (1.920 k)
19 k
40 k
-1.053 (18.80 k)
+1.053% (19.20 k)
190 k
400 k
-1.053% (188.0 k)
+1.053% (192.0 k)
1.9 M
4M
-2.000% (1.862 M)
+2.000% (1.938 M)
19 M
40 M
-1.789% (18.66 M)
+1.789% (19.34 M)
Table B-180. Capacitance.
Capacitance standard
Test instrument
Limits (μF)
Applied
Range
(μF)
(μF)
Min
Max
0.5
1
0.486
0.514
5
10
4.86
5.14
50
100
48.6
51.4
500
1000
472
528
5000
10,000
4150
5850
Table B-181. Temperature.
Cool/Heat source
Test instrument
Limits
Applied
Range
Min
Max
0 F
F
-5 F
5 F
650 F
F
640.5
659.5
B-53
