Model 787
Calibration Manual
24
OFF
A
mA
COM
V
1000V
30mA
FUSED
0.44A
(1A/30 sec)
FUSED
mA
mA
A
mA
OUTPUT 0-24mA
SOURCE SIMULATE
+ +
% STEP COARSE FINE
mV
V
V
OUTPUT
CAT
787
PROCESSMETER
MIN MAX RANGE HOLD
H
REL Hz
UUT
5500A
POWER
I
O
0•
123
456
789
ENTER
M
k
m
VHz
FIELD
EDIT
/
+
F
OPR EARTH SCOPE BOOST MENU
PREV
SHIFT
RESET
CE
SETUP
REF
NEW
TC
MEAS
¡F
µ
n
p
W
dBm sec
¡CA
MULT
x
DIV
÷
OUT
TRIG
5500A
CALIBRATOR
20V PK
MAX
HI
LO
TC
TRIG
OUT
1000V
RMS
MAX
20V
RMS
MAX
1V PK
MAX
20V PK
MAX
NORMAL AUX
SCOPE
V, ,
RTD
A, -SENSE,
AUX V
200V PK
MAX
STBY
(BLUE)
LT0009F.EPS
Figure 10. AC/DC Voltage Measurement Test Connections
Table 10. AC Volts Test
787 Range Calibrator Voltage
and Frequency
Minimum Acceptable
Reading
Maximum Acceptable
Reading
400 mV ac 100 mV @ 60 Hz 98.9 mV 101.1 mV
400 mV ac 300 mV @ 60 Hz 297.5 mV 302.5 mV
4 V ac 1 V @ 60 Hz 0.991 V 1.009 V
4 V ac 2 V @ 60 Hz 1.984 V 2.016 V
4 V ac 3 V @ 60 Hz 2.977 V 3.023 V
40 V ac 10 V @ 60 Hz 9.91 V 10.09 V
40 V ac 30 V @ 60 Hz 29.77 V 30.23 V
400 V ac 100 V @ 60 Hz 99.1 V 100.9 V
400 V ac 300 V @ 60 Hz 297.7 V 302.3 V
1000 V ac 100 V @ 60 Hz 97 103
1000 V ac 800 V @ 60 Hz 792 808