Calibration—485/R485 Service
TABLE 5-1
TEST EQUIPMENT
Description
Minimum Specifications
Usage
Examples of Applicable
Test Equipment
Precision Multimeter
(DVM)'
Range 0 to 180 V; accuracy
within 0.01%.
Adjust: CAL 5 V. +59.4 and
50 V supplies; Vert Comp
Plates; Grid Bias; Auto
Focus; Main Vert Gain; 50 SI
Input Impedance.
Check: Vert Linearity.
Data Precision Digital Multi
meter Model 2400.
DC Voltmeter
(VOM)'
0 to 4000 V; accuracy within
2%.
High Voltage measurement.
Triplett Model 630-NA or a
precision divider with the
DVM.
Time-Mark
Generator
Marker output 2 ns to 0.5 s
within 0.1% accuracy; trigger
output 50 ns.
Adjust: Geometry; Horiz
Gain; Cal 5 V freq; Y Axis; A
timing; B timing; Differential
timing; Delay Jitter.
TE KTR O N IX Type 184
Time-Mark Generator.
TEKTRONIX 2901 Time-
Mark Generator.
Medium-Frequency
Constant-Amplitude
Signal Generator
2 MHz to’ 50 MHz; reference
frequency, 50 kHz; output
amplitude, 50 mV to 2 V P-P
into 50 SI; output accuracy,
within 2%.
Adjust: A and B trigger; X-Y
phasing.
Check: Ext Z Axis blanking;
CMR; Ext Trigger; Single
Sweep; X-Y Bandwidth;
Bandwidth limit.
TEKTRONIX Type 191 Con
stant Amplitude Signal Gen
erator.
High-Frequency
Constant-Amplitude
Signal Generator
Frequency, 100 to 350 MHz;
output amplitude, 0.5 to 5 V;
reference frequency, 3 MHz;
accuracy within 1%.
Vertical bandwidth check.
TEKTRONIX 067-0532-01
Calibration Fixture.
Test Oscilloscope
Bandwidth, DC to 100 MHz;
deflection factor, 5 mV/div;
accurate within 2%.
Adjust: Z Axis Compensation
and risetime; Auto Focus;
CH 1 Trigger Gain.
TEK TR O N IX 465 with
P6065 X10 probe.
Amplitude Calibrator
and Comparator
Amplitude, 20 mV to 100 V;
accurate to 0.25%.
Adjust: 1 M£2 amplifier gain.
Check: 1 MJ2 deflection fac
tor. Ext Trig Level range.
TEKTRONIX 067-0502-01
Calibration Fixture.
50 SI Amplitude
Calibrator
12 mV to 2 V range.
Adjust: CH 1 and CH 2 Gain;
Invert Gain; Added Mode
Gain; X-Y Gain.
Check: 50 SI and 1 MJ2 Gain
match.
TEKTRONIX 067-0508-00
Calibration Fixture.
Tunnel Diode
Pulser
Driven by the Type 106
Square-Wave Generator.
Adjust: 50 SI and 1 M fi tran
sient response.
Check: Ext Trig Delay Match;
A Ext Trig response.
TEKTRONIX 067-0681-01
Calibration Fixture.
1 Not required for Performance Check.
5-2
REV. B. AUG. 1975