DANA 4600 User manual

PUBLICATION NO. 980479
r '" r """"
00
'- .J '- ___ -~-
DIGITAL MULTIMETER
DANA LABORATORIES, INC.
2401 CAMPUS DRIVE
IRVINE, CALIFORNIA 92715
EPT.
1"
u
TELEPHONE [phone]
TELETYPE 910-595-1136
TELEX 678-341
PUBLICATION DATE: MAY 1977
Copyright @ 1977 by Dana laboratories. Inc. Printed in the United States of America. All rights reserved.
This book or parts thereof may not be reproduced in any form without written permission of the publishers.

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WARRANTY
Within one year of purchase, Dana Laboratories will repair or replace
your instrument,
at our option, if in any way it is defective in material
or workmanship. All parts and labor charges will be paid by Dana
Laboratories. Just call Dana Product Service
at (714)833·1234 collect
in California, for assistance.
We will advise the proper shipping address
for your prepaid shipment. Your instrument will be returned
to you
freight prepaid.
OPRIETARY NOTICE
This document and the technical data herein disclosed, are proprietary
to Dana Laboratories, Inc., and shall not, without express written
permission
of Dana Laboratories, Inc., be used, in whole or in part to
solicit quotations from a competitive source or used for manufacture
by anyone other than Dana Laboratories, Inc. The information herein
has been developed at private expense, and may only be used for
operation and maintenance reference purposes or for purposes
of
engineering evaluation and incorporation into technical specifications
and other documents which specify procurement
of products from
Dana Laboratories, Inc.
...
ARTEKMEDIA => 2012

FOR YOUR SAFETY
Before undertaking any maintenance procedure, whether it
be a specific troubleshooting or maintenance procedure
described herein or an exploratory procedure aimed at
determining whether there has been a malfunction, read the
applicable section
of this manual and note carefully the
WARNING and CAUTION notices contained therein.
The equipment described in this manual contains voltages
hazardous
to human life a,.u safety and which is capable of
inflicting personal injury. The cautionary and warning
notes are included in this manual to alert operator and
maintenance personnel to the electrical hazards and thus
prevent personal injury and damage to equipment.
If this instrument
is to be powered from the AC Mains
through
an autotransformer (such as a Variac or equivalent)
ensure that the instrument common connector
is con-
nected to the ground (earth) connection
of the power
mains.
Before operating the unit ensure that the protective con-
ductor (green wire)
is connected to the ground (earth)
protective conductor
of the power outlet. Do not defeat
the protective feature
of the third protective conductor in
the power cord by using a two conductor extension cord
or
a three-prong/two-prong adapter.
Maintenance and calibration procedures contained in this
manual sometimes call for operation
of the unit with power
applied and protective covers removed. Read the procedures
carefully and heed Warnings
to avoid "live" circuit points
to ensure your personal safety.
Before operating this instrument.
1. Ensure that the instrument is configured to
operate on the voltage available
at the power
source. See Installation section.
2. Ensure that the proper fuse is in place in the
instrument for the power source
on which the
instrument
is to be operated.
3. Ensure that
all other devices connected to or in
proximity to this instrument are properly grounded
or connected to the protective third-wire earth
ground.
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TABLE OF CONTENTS
Section Title Page
1 GENERAL DESCRIPTION 1-1
1.1
General.
1-1
1.2 Mechanical Description.
1-1
1.3 Electrical Description 1-1
1.4 Specifications . 1-1
2 INSTALLATION & OPERATION 2-1
2.1 General . 2-1
2.2 Unpacking and Inspection .
2-1
2.3 Bench Operation .
2-1
2.4 Rack Mounting 2-1
2.5 Power Requirements 2-2
2.6 Storage Requirements 2-2
2.7 Reshipment Packaging Requirements
2-3
2.8 Input/Output/Controls . 2-4
2.9 Operation
24
2.9.2 Autorange . 2-4
2.9.3 Manual Range .
24
2.9.4 Overrange
24
2.9.5 Signal Input
24
2.9.6 Function Select
24
2.10 Hold/Read Probe (Option 81) 2-5
2.11
BCD Output (Option 51) 2-5
2.12 Battery Pack (Option 70)
2-5
3
BCD OUTPUT
3-1
3.1
General.
3-1
3.2 Mechanical Description .
3-1
3.3 Electrical Description
3-1
3.4 Operation 3-3
3.4.3 Function Codes 3-3
3.4.4 Range Codes
34
3.4.5 Serial Output .
34
3.4.6 Parallel Output
3-5
3.4.7 Hold.
3-5
4 THEORY OF OPERATION
4-1
4.1
General.
4-1
4.3 Circuit Description
4-1
4.13 Function Controls 4-3
iii
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l
1
TABLE OF CONTENTS continued
"""
~ection Title
Page
"'""I
5
MAINTENANCE.
5-1
5.1
Introduction
5-1
5.2 Calibration Checks
5-1
5.3 Calibration Adjustments 5·5
5.3.5 Calibration Procedure 5·6
5.4 Troubleshooting Performance Tests 5-9
5.4.7 Unit Performance Tests 5·9
5.4.10 Subassembly Performance Tests . 5·20
6
DRAWINGS
6-1
7 PARTS LIST
7.1
iv
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Figure
2.1
2.2
2.3
3.1
3.2
3.3
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
4.16
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
5.13
5.14
5.15
5.16
5.17
5.18
5.19
5.20
5.21
5.22
5.23
LIST OF ILLUSTRATIONS
Rack Mount Installation
Line Selector
PCB Jumper Location
Line Voltage Indicator
Aperture.
BCD Output .
Control Logic. . . . .
Timing Diagram . . . .
Functional Block Diagram.
Dual Slope
Integration. .
Title
Display Cycle Timing Using Dual Slope Integration Technique .
Function Controls . . . . .
Voltage Attenuator and
Current.
Ohms Amplifier . . . .
AC Converter (Averaging)
Isolator. . . . .
Integrator . . . . .
Reference Generator
Timing and Control Circuit, Simplified Block Diagram
Measurement Timing Cycle
Logic Array
4-to-7 Line Decoder .
LED Display . .
Range Control
Calibration Points
DCV Single Thread Diagram
ACV Single Thread Diagram
KOhms Single Thread Diagram
DCmA Single Thread Diagram
ACmA Single Thread Diagram
Main PCB Oscillator/Clock Test Point Locations
Main PCB Reference Voltage Generator Test Point Locations
Main PCB Timing and Control Logic Test Point Locations
Range and Relay Logic Test
Points. . . . .
Range Relay Logic Level Performance Standard
Range Relay Status Chart. . . .
Main PCB Null Detector Test Points
Main PCB Integrator Test Points. .
Main PCB Isolator/Bootstrap Test Points
Main
PCB KOhm Amplifier Test Points
Display Subassembly Test Points
AC Converter Subassembly Test Points
Serial
Output Codes. . . . . . .
Data
Output Subassembly Test Points.
Battery Pack Subassembly Test Points.
Battery Pack Subassembly Test Points.
Model 4600 Interconnect Diagram . .
Page
2·1
2·3
2·3
3·1
3·2
3·2
4·2
4·3
4·3
44
44
4·5
4·5
4·6
4·7
4·8
4·9
4·10
4·14
4·15
4·16
4·17
5·6
5·11
5·13
5·15
5·17
5·19
5·23
5·25
5-27
5-31
5-32
5.33
5-37
5·39
543
5-45
5-52
5-55
5·59
5-62
5·65
5-66
5-69
v/vi Blank
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LIST OF TABLES
Table
Title
Page
1.1
Specifications . 1-2
2.1
Front Panel Identification.
2-2
2.2 Rear Panel Identification 2-3
2.3 Available
Ranges.
24
2.4 Maximum
Inputs.
2-4
3.1 Pin Location
J202
34
3.2 Function Codes 3-4
3.3 Range Codes 3-4
3.4 Serial Out Pin Location 3-4
3.5 Serial
Data Out
3-5
3.6 Parallel Out Pin Location 3-5
4.1 Sequence Chart 4-12
5.1 DCV Calibration Check 5-2
5.2 ACV Calibration Check 5-3
5.3 KOhms Calibration
Check.
5-4
5.4 DCV/mA Calibration Check 5-4
5.5 ACV/mA Calibration Check
54
5.6 Required Equipment
5-5
5.7 DC Calibration Adjustment 5-7
5.8
AC Calibration Adjustment 5-7
5.9 Resistance Calibration Adjustment 5-7
5.10 DCV Unit Performance
Test
5-10
5.11 ACV Unit Performance Test 5-12
5.12 KOhms Unit Performance Test 5-14
5.13 DCmA Unit Performance Test 5-16
5.14 ACmA Unit Performance Test 5-18
5.15 Main PCB, Power Supply (Line Only) Subassembly Performance Test 5-21
5.15.1 Table S.15.1 5-21
5.15.2 Table 5.15.2 5-21
5.15.3 Table 5.15.3
5-21
5.15.4 Table 5.15.4 5-21
5.16 Main PCB, Oscillator/Clock Subassembly Performance Test. 5-22
5.17 Main PCB, Reference Voltage Generator Subassembly Performance Test 5-24
5.18 Main PCB, Timing and Control Logic Subassembly Performance Test 5-26
5.19 Main PCB, Range and Relay Logic Subassembly Performance Test 5-30
5.20
Main PCB, Null Detector Subassembly Performance Test 5-34
5.21 Main PCB, Integrator Subassembly Performance Test . 5-38
5.22 Main PCB, Isolator/Bootstrap Subassembly Performance Test 5-40
5.23 Main PCB, KOhms Amplifier Subassembly Performance Test 544
5.24
Display Subassembly Performance Test 5-46
5.25
AC Converter Subassembly Performance Test 5-53
5.26 Data
Output (Opt. 51) Subassembly Performance Test 5-56
5.27 Battery Pack (Opt. 70) Subassembly Performance Test 5-63
7.1 Table 7.1
7-1
7.2 List
of Suppliers .
7-1
vii
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SECTION 1
1.1 GENERAL.
1.1.1 The Dana Model 4600 is a compact, highly ac-
curate, four digit instrument featuring autorange, auto
polarity, 80 dB normal mode noise rejection, 140 dB com-
mon mode noise rejection, and 10,000 megohm input
resistance on the DC functions .2 and 2 volt ranges.
Available options include Battery Pack, Data Output, and
Read, Hold Probe.
1.1.2 The basic instrument has full multimeter capability
measuring full scale inputs from 10 IN to 1000 volts on
five DC voltage ranges, from 10 J.J,V to 1000 volts on five AC
voltage ranges, from 10 mOhms to 20 Megohms on six
ohms ranges, 10 namps to 2 amps on five AC current
ranges, and 10 namps to 2 amps on five DC current ranges.
1.1.3 High reliability is insured by the use of LSI MaS
and solid-state circuitry, including the display. Protection
from possible introduction of fault voltage is provided
through both mechanical and electrical means. The use of
separate input terminals, while routing inputs only when
the proper function is selected, reduces the chance of sig-
nals reaching the wrong circuitry. The current functions are
protected on all ranges by a 2.5 amp fuse; the DC volts
function is designed to handle inputs of 1000 volts DC or
rms AC on all ranges; the AC volts function is designed to
handle inputs of 1000 volts DC or 1000 volts rms AC to
20 kHz, decreasing to 200 volts at 100 kHz on all ranges.
1.1.4 Also available is the Option 51 Isolated Output
(designated 4600-51). The option provides the function,
range, polarity, and numeric readout data in BCD form
both serially and in parallel.
1.1.5 Accessories available for 4600 include:
Option 61
Option 70
Option 80
Option 81
Option 82
Option 83
Carrying case.
Battery pack for operation -up to
four hours continuous use in areas
where no AC power is available.
Shielded input cable, for use in high
noise environments.
Hold Probe, provides pushbutton control
of Measure/Hold functions.
5 KV HV Probe, extends DC voltage
measurement to 5 KV.
50 KV HV Probe, extends DC voltage
measurements to 50 KV.
GENERAL DESCRIPTION
Option 84 RF Probe, measures RF voltages to
200 MHz.
Option 88 Deluxe test leads, include assorted tips.
Option 89 Standard test leads, with replaceable tips.
1.2 MECHANICAL DESCRIPTION.
1.2.1 The basic DMM is designed as a bench top instru-
ment and comes equipped with a bail handle to simplify
carrying. The bail handle rotates 3600 and may be used as
a "kickstand" for easy measuring and control access.
1.2.2 All components of the basic instrument including
the power supply are mounted on two printed circuit
boards and housed in a high-impact plastic case. Access to
the interior of the instrument for calibration and mainte-
nance is made by removing three screws on the back panel.
1.3 ELECTRICAL DESCRIPTION.
1.3.1 The model 4600 utilizes the dual-slope integration
method of analog-to-digital conversion. This technique
minimizes the number of components for increased reli-
ability and lower cost while having inher~nt advantages of
stability and noise rejection.
1.3.2 The circuitry consists of a signal conditioning
section, digital section, and an analog-to-digital converter.
1.3.3 The analog-to-digital (A/D) converter changes a dc
signal fed into it into a representative digital signal. The
method used to perform this task is called dual-slope
integration.
1.3.4 The digital section measures the output of the AID
converter to produce a numeric value on the instrument
display that represents the value of the input signal. The
digital section also provides range control and decimal
placement.
1.3.5 The signal conditioning section scales, filters, and,
when required, converts the input signal to a full scale ±2
volts for the A/D converter.
1.4 SPECIFICATIONS.
1.4.1 Specifications are provided in table 1.1.
1-1
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..
980479
Table 1.1 -Specifications
DC VOLTAGE
OHMS
Full Range ±.19999, ±1.9999, ±19.999, Full Range .19999
Kn, 1.9999 Kn,
Display: +199.99, +1000.0 Display: 19.999
Kn, 199.99 Kn,
Resolution: .005% of range except 1000 1999.9
Kn, 19.999 Mn
volt range, .01% of range Resolution:
10 milliohms on .2 Kn range
10 J..LV on .2 volt range Accuracy: 6 Months, 230C ± 5°C
Accuracy: 6 Months, 230C ± 50C
(after zeroing)
.2 Kn Range
±(O.OS% of reading
.2V Range + 2 digits)
±(0.02% of reading
+ 2 digits) 2K, 20K, 200
Kn Range
±(O.OS% of reading
2V, 20V, 200V Ranges + 1 digit)
HO.Ol% of reading
+ 1 digit) 2000
Kn Range
±( 0.1 % of reading
1000V Range + 1 digit)
±(0.01% of reading 20,000
Kn Range
+ 1 digit) ±(0.2%
of reading
Temperature oto 50°C + 1 digit)
Coefficient: 2V, 20V, 200V, 1000V Temperature oto 50°C
Ranges Coefficient:
.2 Kn Range
±(O.OO 1% of reading
±(O.OOS% of reading
+
.1 digit)/oC + 1 digit)/oC
.2V Range 2
Kn, 20 Kn, 200 Kn
±(0.002% of reading Ranges
+
.5 digit)/oC ±(0.002S%
of reading
Input .2V Range +
.1 digit)/oC
Resistance:
1010nminimum
2000 Kn Range
2V Range
±(O.OOS% of reading
10
1
On minimum +
.1 digit)/oC
20V, 200V, 1000V Ranges 20,000
Kn Range
10 Mn ± .25%
±(O.OOS% of reading
;\formal Mode 80
dB at 50 and 60 Hz and at
I Noise Rejection: multiples
of 10 Hz ± 0.1 %.
! 50
dB at 59 Hz, general slope
I increasing at 12 dB/octave
+
.1 digit)/oC
Settling Time to
Less than 700 msec
Rated Accuracy: on
all ranges
Maximum 2S0V
DC or peak AC
Common Input Voltage:
all ranges
.Mode Noise 140
dB DC
Current through Range Current Voltage
Rejection: 120
dB at 50 and 60 Hz
Unknown and
.2 Kn
1 rnA 0.2 volts
Settling Time to (With 10 Kohm Source)
0.01%
of Full 700 milliseconds
Scale Step Input: 2.5 seconds maximum on
Voltage across
2Kn 1 rnA
2 volts
Unknown:
20Kn
100pA 2 volts
200Kn
10 J..lA
2 volts
2000 Kn
IpA
2 volts
1 KV range for 1 KV step 20,000
Kn 0.1 pA 2 volts
input Open Circuit
Voltage: 7 volts maximum
1-2
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980479
Table
1.1 . Specifications continued
ACVOLTS
AC VOLTS continued
Full Range .19999, 1.9999, 19.999,
Display: 199.99, 2000.0V rms
Resolution: 10 microvolts on the .2 volt
Accuracy: (con't) 2000 Volt Range
(500V to 1000V)
30 Hz to 50 Hz
range
Accuracy: 6 Months, 230C ± 100C
(From 1% of
.2 Volt Range
±(0.5%
of reading
+10 digits)
50 Hz to 20 kHz
range
to 100%
30 Hz to 50 Hz
of range) ±(0.1%
of reading ±(0.2%
of reading
+5 digits)
+70 digits)
50
Hz to 500 Hz
±(0.1% of reading
+30 digits)
500 Hz to 50 kHz
±(0.08%
of reading
+16 digits)
50 kHz to 100 kHz
±(.7%
of reading
+ 40 digits)
2,200 Volt Ranges
30 Hz to 50 Hz
±(0.25% of reading
+20 digits).
50
Hz to 20 kHz
±(0.1%
of reading
+9 digits)
20 kHz to 50 kHz
±(0.1%
of reading
+10 digits)
50 kHz to 100 kHz
±(.7%
of reading
+14 digits)
Temperature
30 Hz to 10 kHz
Coefficient:
±CO.Ol % of reading
+.4 digits)/oC
10 kHz to 100 kHz
±(0.05% or reading
+.1 digit)/oC
Common Less than 80
dB at 50 Hz and
Mode Noise 60 Hz with I Kohm imbalance
Rejection: in either lead
Input 1 Megohm with 100 pF
Impedance: shunt capacitance with
.221J.F in series on aRranges
Zero Offset: Range
.2V
40 digits max
2V 5 digits max
20V 30 digits max
200V 5 digits max
2000V 5 digits max
Settling Time 1%
of range to F .S. or F .S.
(To 100% of range): to 1%
of range
Step settles to 0.1 % of final
value within 1.5 seconds
20 Volt Range
30 Hz to 50 Hz
CURRENT AC
±(.25% of reading
+ 30 digits)
50
Hz to 20 kHz
Full Range .19999 rnA, 1.9999 rnA,
Display: 19.999 rnA, 199.99 rnA,
1999.9
rnA
±(.1% of reading
+ 12 digits) Shunt Values: .2
rnA
IKn
2mA
loon
20 kHz to 50 kHz
20mA Ion
±(.I % of reading 200
rnA
In
+ 16 digits) 2000
rnA
O.ln
50 kHz to 100 kHz Input Protection: 2.5 Amp Fast Blow Fuse
±(.7%
of reading
+16 digits) Accuracy: 6 Months,
23
0
(' ± SoC
(From 1% of
50 Hz -10 kHz
2000 Volt Range
(10V to 500V) range
to 100%
.2,2, 20, 200 rnA Range
of range) ±(0.2%
of reading
30 Hz to 50 Hz
+20 digits)
±(0.45%
of reading
+10 digits) 2000
rnA Range
±(0.3%
of reading
50 Hz to 20 kHz +20 digits)
±(0.15%
of reading Temperature ±(0.015%
of reading
+5 digits) Coefficient: +.6 digits)/oC
1-3
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•
980479
Table 1.1 -Specifications continued -
CURRENT DC
GENERAL
Full Range ±.19999 rnA, ±1.9999 rnA, Ranging: Automatic or Manual
Display:
±19.999 rnA, ±199.99 rnA, Digitizing
+1999.9
rnA
Technique: Dual Slope
Shunt Values: .2
rnA
IKn
2mA lOOn
20 rnA
IOn
200 rnA In
2000 rnA
o.ln
Signal Inte-
gration Time: 100 msec ± .25%
Read Rate: 400 msec per reading
2-1 /2 reading per second
+.25%
Input Protection: 2.5 Amp Fast Blow Fuse Maximum
Accuracy: 6 Months, 230C ±
SoC
Common 1
KV DC or peak AC input
.2, 2, 20, 200
rnA Ranges Mode Voltage: to Earth Ground
±(0.12% of reading
+ 4 digits)
2000 rnA Range
±(0.3% of reading
Power 100, 120, 220, 240 volts
Requirements: ±IO% from nominal.
50 to 400 Hz, 10 watts
maximum
+ 20 digits)
Temperature o to 500C
Coefficient: ±(0.01%
of reading
+ .2 digits)/oC
Storage
-20
0 C to
75
0 C
Temperature:
-20
0 C to 650 C w/battery opt.
Operating
Temperature:
0- 50°C
Warmup: 30 minutes
to 6 month accuracy
Weight Std:
(Approx.): 2.3
Kg (Sibs.)
With Battery Option:
3.2
Kg (7Ibs.)
Dimensions: 73mm x 200mm x 250mm
(2.87 x 7.87 x 9.84 inches)
1-4
ARTEKMEDIA => 2012

SECTION 2
2.1 GENERAL.
2.1.1 This section covers the incoming inspection, instal·
lation, storage and operation of the Model 4600 DMM.
2.2 UNPACKING & INSPECTION.
2.2.1 The Model 4600 is enclosed between two molded,
plastic·foam forms and packaged in a double·walled card·
board carton for shipment. The plastic forms hold the
instrument securely in the carton and absorb any reason·
able external shock normally encountered in transit.
2.2.2 Prior to unpacking, examine the exterior of the
shipping carton for any signs of damage. Carefully remove
the DMM from the carton and inspect the exterior of the
instrument for any signs of damage. If damage is found,
notify the carrier immediately.
2.3 BENCH OPERATION.
2.3.1 The instrument comes equipped with a bail handle"
that doubles as a carrying handle and as a "kickstand" for
elevating the front of the instrument.
CASE SUPPORT
BRACKET
CASE SUPPORT
RIGHT HAND MOUNTING SHOWN
INSTALLATION & OPERATION.
2.4 RACK MOUNTING.
2.4.1 The rack mounting kit (Option 60) allows the user
to mount the instrument Offset Left or Offset Right in a
standard 19-inch rack and requires 3-1/2 inches of vertical
mounting space. "The kit consists of a rack mount panel,
left and right case supports, two brackets, and 8 securing
nuts.
2.4.2 The option is shown in figure 2.1 and assembled as
described below:
a. Index rack mount panel for desired position
(Offset Left or Offset Right).
b. Place the left and right case supports over the two
sets of studs on the case supports face out. Mount
the case supports to the panel with four of the
securing nuts. and washers.
c. Set the instrument bail to the rear of the instru·
ment. Place the instrument between the case
supports with the bail handle passing through the
slots in the case supports.
d. Place the slotted part of each bracket over the
case support studs so that the curved portion of
each bracket goes around the bail. Secure the
brackets with the remaining four nuts and washers.
r- PANEL
Figure 2.1 . Rack Mount Installation
2-1
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980479
Table 2.1 -Front Panel Identification
13
1- - - - --
-I
CD
CD
0*
8)*
CD
(0
(j)
®
POWER Switch, push on, push off.
I
L
POWER Fuse Holder, 2.5 Amp, protects
measurement circuitry on current measurements.
VOLTAGE-OHMS measurement input jacks.
CURRENT measurement input jacks.
DC VOLTS Function Select Switch, push on.
KOHMS Function Select Switch, push on.
AC VOLTS Function Select Switch, push on.
MA Function Select Switch, push on, push off.
Used with DC volts and AC volts select switches.
2.5 POWER REQUIREMENTS.
2.5.1 Power
is supplied to the instrument through a
standard 6-foot long detachable power cord connected
to
power input jack 1201.
2.5.2 The powerfuse holder is located next to the power
inputjack and uses a .25 ampere fast blow fuse.
2.5.3 The instrument is designed for operation
at a line
voltage
of 100, 120, 220, 240 volts ± 10%, 50 to 400 Hz.
The instrument
is set to the desired voltage by the position
of the line voltage printed circuit board in connector 114 on
the main printed circuit board.
2.5.4 Access
to theline voltage adjustment PCB is gained
by removal of 3 screws at the rear of the instrument and the
removal
of the case (see table 2.2).
2-2
®
@
@
@
I·
.-J
UP ON AUTO
POWER
--. ......
ON OFF
AUTO selects range most compatible with input
signal. Push on, push off.
DN. Causes instrument
to downrange. Momentary
on.
UP. Causes instrument to uprange. Momentary on.
DC OFFSET. Allows user to compensate out un-
wanted input signal bias.
DISPLAY consists of four full decade readouts
"0 - 9" and a "±1" readout, all .43 inch yellow LED
types. *See CAUTION, paragraph 2.9.5.2
WARNING
Removal
of covers exposes potentially lethal voltages.
Avoid contact with internal electrical connections
while unit
is connected to AC power source.
2.5.5 Selection
of the line voltage is accomplished by
removing the instrument from its case and positioning a
printed circuit jumper
so that the desired line voltage
appears in the aperture in the right hand side
of the case.
Figure 2.2 illustrates the location
of the PCB jumper and
figure 2.3 illustrates the aperture with the jumper in place
for 120 volt operation.
2.6 STORAGE REQUIREMENTS.
2.6.1 The instrument can be stored
at temperatures
ranging from
-200C to +700 Ct at 75% relative humidity
t
to +650C with battery option
ARTEKMEDIA => 2012

980479
Table 2.2 - Rear Panel Identification
c::::J
CD POWER Receptacle 1201. This receptacle receives
power cable.
CD FUSE Holder, .25 Amp fast blow, is in series with
high side
of power line & power transformer.
CD BCD OUTPUT Connector 1202. Available only on
instruments equipped with the option
51 BCD out-
put option.
TOP VIEW
REAR OF INSTRUMENT
Figure 2.2 -Line Selector PCB Jumper Location
without adversely effecting operation or accuracy. The
instrument must be brought
up to operating range (OOC to
50°C) before power is applied.
2.7
RESHIPMENT PACKAGING REQUIREMENTS.
2.7.1 The shipping carton with its molded plastic foam
form and plastic dust cover
is specifically designed to pro-
vide the required support necessary for safe shipment.
Whenever possible, these should be used for reshipment.
3
8) READ/HOLD Control Connector. Receives Read/
Hold Switch option.
eD DISASSEMBLY Screws. Removal of these screws
permits removal
of case.
SIDE VIEW
APERTURE
REAR
OF
INSTRUMENT
PCB JUMPER
Figure 2.3 -Line Voltage Indicator Aperture
2.7.2
If the original packing materials are not available,
proceed
as follows:
a. Wrap instrument in plastic or heavy paper.
b.
c.
Place packing material around all sides of instru-
ment and pack in cardboard box.
Place instrument and inner container in a sturdy
cardboard or wooden box. Mark
box with appro-
priate precautionary labels.
2-3
ARTEKMEDIA => 2012

980479
2.8 INPUTjOUTPUTjCONTROLS.
2.8.1 In tables 2.1 and 2.2 are described the operating
controls and their function. Also described are input and
output connectors.
2.9 OPERA
nON.
2.9.1 Operation consists of selecting the desired func-
tion, selecting autorange or manually selecting the desired
range, applying the input signal and reading the results on
the instrument readout.
2.9.2 Autorange.
2.9.2.1 In autorange the instrument automatically selects
the range most appropriate for the signal being measured.
2.9.2.2
As the input signal changes, the instrument changes
ranges
as required. Upranging occurs at 100% of range and
downranging occurs at
5% of range.
2.9.3 Manual Range.
2.9.3.1 When autorange
is not selected, the instrument is
in manual range. Higher or lower ranges are selected by
pressing the
UP or DN range buttons. A new range is
selected at the read rate within the range limits of the
selected function
as long as the UP or DN buttons are
pressed.
2.9.3.2 The available ranges for each function are given in
table 2.3.
Table 2.3 -Available Ranges
DCI
ACI
DCV
(rnA)
ACV
(rnA)
Kn
.2
.2 .2 .2
.2
2 2 2 2 2
20 20 20 20 20
200 200 200 200 200
1000 2000 1000 2000 2000
----20,000
2.9.4 Overrange.
2.9.4.1 Overrange occurs when the signal being monitored
is greater than the instrument can measure with the range
selected.
2-4
2.9.4.2 Overrange is indicated by the display flashing at
the read rate.
2.9.5 Signal Input.
2.9.5.1 Signal input
is through four banana jacks on the
front panel. These jacks accept standard probe banana
plugs and are spaced to accept dual banana plugs. Several
probe sets for the 4600 are available from the factory (see
Section 1).
2.9.5.2 The left hand pair
of input jacks are reserved for
DC and AC current measurements; the jacks on the right are
for voltage and resistance measurements.
CAUTION
Do not connect test leads between the
rnA and Von
jacks. Application of voltage or current between
these jacks can damage the instrument.
2.9.5.3
As a general rule for voltage measurements, the Hi
side is connected to the highest impedance point to be
measured and the
LO side is connected to the point nearest
ground.
If shielding is used on the input cables, it should
be tied to the LO input side unless it is used in the Ohms
function. The shield then should be tied to the LO current
input side.
2.9.5.4 Maximum inputs are shown in table 2.4.
Table 2.4 -Maximum Inputs
Current
Max current input 2 Amps (current jacks)
Volts
DC
DC, rms AC 1000 volts
Volts
AC
1000V DC to 20 kHz rms decreasing
linearily to 200V at 100 kHz
Kohms 250 volts max.
Common 1000 volts
DC or peak AC max. from
Mode input to earth ground, data output com-
mon tied to earth ground
2.9.6 Function Select.
2.9.6.1 The select buttons for
AC volts, kilohms, and DC
volts are interlocked; when one of these buttons is pushed,
any other button in the set
is released.
2.9.6.2 The current button
is selected in addition to the
AC volt or DC volt button for current measurement and is
unselected when current measurement is no longer desired.
ARTEKMEDIA => 2012

2.10 HOLD/READ PROBE (Option 81).
2.1 0.1 This option consists of a probe with a built-in
switch that connects to
n03 on the rear panel.
2.10.2
With the option plug inserted in 1203 in the read
position, the instrument takes readings only
as long as the
switch
is held down.
2.10.3. With the option plug inserted in
n03 in the hold
position, the instrument
goes into the hold mode when the
switch
is pressed.
2.11 BCD OUTPUT (Option 51).
2.11.1 This option provides function, range, polarity, and
the display
value in BCD form for printer or other digitally
operated device.
It is designed to interface with units re-
quiring serial or parallel output. The option is covered in
detail in Section 3.
NOTE
Option 51 is not available for units equipped with the
Option 70 battery pack.
2.12 BATIERVPACK(Option70).
2.1.2.1 With the battery pack option the instrument
becomes completely portable, taking measurements for up
980479
to four hours of continuous use. Recharging occurs when
the instrument
is connected to the power line and the
power switch
is set to the OFF position.
2.12.2
When the battery charge drops below operating
level, the condition
is indicated by a LED lamp on the
instrument front panel. To fully recharge the batteries
re-
quires about 16 hours.
NOTE
Option 70 is not available for units equipped with the
Option 51 BCD Output.
CAUTION
On units equipped for battery pack operation (Option
70) the batteries
are charging when the instrument is
connected to the AC power source and the instru·
ment is turned off. The batteries charge in approxi·
mately 16 hours; it is recommended that the unit be
unplugged during extended periods of non-use to
avoid
pOSSible damage to the batteries.
2-5
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THIS
PAGE
LEFT
BLANK
SCANS
By
ArtekMedia
ARTEKMEDIA => 2012

SECTION 3
3.1 GENERAL.
3.1.1 The
Model 4600 Option 51 Isolated Output pro·
vides the function, range, polarity, and numeric readout
data in
BCD form, both serially and in parallel, from a
single connector on the instrument rear panel. The output
data
is completely isolated from the measurement portion
of the 4600, thereby preserving the common mode noise
characteristics
of the instrument.
3.2
MECHANICAL DESCRIPTION.
3.2.1 All components for the option are on a single
printed circuit board that is mounted above the instrument
AC
T
Kn
RANGE
, NUMERIC
DATA
TRANSFER
00
CLOCK
-100
P7
I
:
I
I
1
I
II
II
I
I
I
:
1
h>
FUNCTION
ENCODE
MUX
:>
:>
f
CONTROL
LOGIC
r--
.-.-
......-
~
_I
HOLD~(~I----------------------------------~
FLOATING SECTION
BCD OUTPUT
main PC board by four spacers; an aluminum shield,
located between the boards, prevents any digital
noise
generated on the option board from affecting the measure·
ment circuitry on the Main board.
3.2.2 One end
of the option board forms an edge con·
nector that extends out the back of the instrument through
a slot provided for this purpose. This connector
is the
option output connector and
is designated J202.
3.3 ELECTRICAL DESCRIPTION.
3.3.1 The option, shown in simplified block diagram
form in figure 3.1, consists of a floating section, a grounded
section, and six optical couplers.
I
I
I
I
'- OCll
I
I
I
OCI
2
I
I
I
OCI
3
I
I
I
OCI
4
I
I
I
10CIs
J202
SERIAL 1 I
SERIAL 2 I "-
I
SERIAL 4 I ,
SERIALS 1
I
I
I
I
SHIFT
I
REGISTER
I
I
I
I
I
I
I
i 1
I
TIO GEN
I
SERIES
DATA
PARALLEL
OUTPUT
PARALLEL
OUTPUT
INHIBIT
SERIAL
STROBE
: oc,.I"'~------------------------« Hc5"i:D
I
I
GROUNDED SECTION
Figure 3.1·BCD Output
3-]
ARTEKMEDIA => 2012

980479
3-2
TRANSFER
00
CLOCK
(1 kHz)
L
"
COUNTER
DECODE
U1
U5
f--
i
DATA
TRANS
F/F
GATE
U5,U3
r
U2, U3
Figure 3.2 -Control Logic
~END OF DIGITIZING
TRANSFER .-J
t+--5 MSEC--+j
~
PART OF
MUX
U6,U7
00 1 MS =il n .. ______ _
DATA TRANSFER
MUX CLOCK (1 kHz)
SERIAL DATA STROBE
PARALLEL DATA VALID
_________ --'I ..... If----- 8 MS ----- ... ~oIL
I I I I
II I I I I I I I I
UNITS
TENS
HUNDREDS
THOUSANDS
TEN THOUSANDS
FUNCTION-----..J
RANGE-------..J
Figure 3.3- Timing Diagram
20 IlS
...
-
ARTEKMEDIA => 2012