Hioki 3805 Instruction Manual
3805
DIGITAL HiTESTER
INSTRUCTION MANUAL
Contents
Introduction
i
Inspection
i
Safety Notes
ii
Notes on Use
viii
Chapter 1 Overview
1
1.1 Product Overview 1
1.2 Features
2
Chapter 2 Names and Functions of Parts 3
2.1 Push Buttons 4
2.2 Rotary Switch
7
2.3 Input Terminal
8
2.4 LCD Display Illustration
9
Chapter 3 Measurement Procedures 11
3.1 Voltage Measurement 13
3.1.1 AC Voltage Measurement 14
3.1.2 Frequency Measurement
15
3.1.3 DC Voltage Measurement
16
3.2 Diode Check 17
3.3 Resistance Measurement
19
3.4 Current Measurement
21
3.4.1 AC Current Measurement 22
3.4.2 Frequency Measurement
23
3.4.3 DC Current Measurement
24
3.5 Capacitance Measurement 25
3.6 Temperature Measurement
27
Chapter 4 Special Functions Instructions 31
4.1 Data Hold 32
4.2 Refresh Hold
33
4.3 Dynamic Recording
34
4.4 Harmonic Ratio Measurement
37
4.5 Relative (Zero)
38
4.6 % of mA Measurement (4-20mA)
39
4.7 Beeper On/Off
40
4.8 Set Up
41
4.8.1 Timer Setting for Auto-power Save 42
4.8.2 Selecting % Display for 4 to 20 mA
43
4.8.3 Selecting J/ k Types and
/ Display 44
4.9 Communication (RS-232C) 45
Chapter 5 Specifications 47
5.1 General Specifications 47
5.2 Accuracy Chart
51
Chapter 6 Maintenance and Service 57
6.1 Changing the Battery and Fuses 57
6.2 Cleaning
60
6.3 Service
60
i
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Introduction
_______________________________________________
Introduction
Inspection
Thank you for purchasing the HIOKI "3805
DIGITAL HiTESTER". To obtain maximum
performance from the product, please read this
manual first, and keep it handy for future reference.
When you receive the product, inspect it carefully to
ensure that no damage occurred during shipping. If
damage is evident, or if it fails to operate according
to the specifications, contact your dealer or Hioki
representative.
Accessories
3851-10 TEST LEAD (a pair) 1
Protective holster 1
Instruction Manual 1
6F22 manganese battery 1
(built into this unit, for monitor)
ii
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Safety Notes
_______________________________________________
WARNING
This product is designed to conform to IEC 61010
Safety Standards, and has been thoroughly tested
for safety prior to shipment. However,
mishandling during use could result in injury or
death, as well as damage to the product. Be
certain that you understand the instructions and
precautions in the manual before use. We
disclaim any responsibility for accidents or
injuries not resulting directly from product
defects.
Safety Notes
iii
_______________________________________________
Safety Notes
_______________________________________________
The symbol printed on the product
indicates that the user should refer to a
corresponding topic in the manual
(marked with the
symbol) before
using the relevant function.
In the manual, the symbol indicates
particularly important information that
the user should read before using the
product.
Indicates a double-insulated device.
Indicates DC (Direct Current).
Indicates AC (Alternating Current).
Indicates both DC and AC.
Indicates grounding terminal.
Indicates that dangerous voltage may be
present at this terminal.
This manual contains information and warnings
essential for safe operation of the product and for
maintaining it in safe operating condition. Before
using the product, be sure to carefully read the
following safety notes.
Safety symbols
iv
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Safety Notes
_______________________________________________
DANGER
Indicates that incorrect operation
presents an extreme hazard that could
result in serious injury or death to the
user.
WA R NING
Indicates that incorrect operation
presents a significant hazard that could
result in serious injury or death to the
user.
CAUTION
Indicates that incorrect operation
presents a possibility of injury to the
user or damage to the product.
NOTE
Advisory items related to performance
or correct operation of the product.
The following symbols in this manual indicate the
relative importance of cautions and warnings.
v
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Safety Notes
_______________________________________________
We define measurement tolerances in terms of f.s.
(full scale), rdg. (reading) and dgt. (digit) values,
with the following meanings:
f.s. (maximum display value or scale length)
The maximum displayable value or the full length of
the scale. This is usually the maximum value of the
currently selected range.
rdg. (reading or displayed value)
The value currently being measured and indicated
on the measuring product.
dgt. (resolution)
The smallest displayable unit on a digital measuring
product, i.e., the input value that causes the digital
display to show a "1".
vi
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Safety Notes
_______________________________________________
Measurement categories (Overvoltage
categories)
This product conforms to the safety requirements for
CAT II (1000V), CATIII (600V) measurement
products.
To ensure safe operation of measurement product,
IEC 61010 establishes safety standards for various
electrical environments, categorized as CAT I to
CAT IV, and called measurement categories. These
are defined as follows.
CAT I : Secondary electrical circuits connected to
an AC electrical outlet through a
transformer or similar device.
CAT II : Primary electrical circuits in equipment
connected to an AC electrical outlet by a
power cord (portable tools, household
appliances, etc.)
CAT III : Primary electrical circuits of heavy
equipment (fixed installations) connected
directly to the distribution panel, and
feeders from the distribution panel to
outlets.
CAT IV : The circuit from the service drop to the
service entrance, and to the power meter
and primary overcurrent protection device
(distribution panel).
vii
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Safety Notes
_______________________________________________
Higher-numbered categories correspond to electrical
environments with greater momentary energy. So a
measurement device designed for CAT III
environments can endure greater momentary energy
thanadevicedesignedforCATII.
Using a measurement product in an environment
designated with a higher-numbered category than
that for which the product is rated could result in a
severe accident, and must be carefully avoided.
Never use a CAT I measuring product in CAT II,
III, or IV environments.
The measurement categories comply with the
Overvoltage Categories of the IEC60664 Standards.
viii
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Notes on Use
_______________________________________________
WARNING
Do not use the p roduct where it may be
exposed to corrosive or combustible gases.
The product may be damaged or cause an
explosion.
Before using the product, make sure that the
insulation on the test leads is undamaged and
that no bare conductors are improperly
exposed. Using the product under such
conditions could result in electrocution.
Replace the test leads with the specified Hioki
Model 3851-10.
Notes on Use
Follow these precautions to ensure safe operation
and to obtain the full benefits of the various
functions.
Preliminary Check
Before using the product the first time, verify that it
operates normally to ensure that the no damage
occurred during storage or shipping. If you find any
damage, contact your dealer or Hioki representative.
ix
_______________________________________________
Notes on Use
_______________________________________________
CAUTION
To avoid damage to the product, do not allow the
product to get wet, and do not use it when your
hands are wet.
Adjustments and repairs should be made only by
technically qualified personnel.
This product should be installed and operated indoors
only, between 0 and 40
and 80% RH or less.
However, it can be safely operated down to -10
.
Do not store or use the product where it could be
exposed to direct sunlight, high temperature or
humidity, or condensation. Under such conditions, the
product may be damaged and insulation may
deteriorate so that it no longer meets specifications.
This product is not designed to be entirely water- or
dust-proof. To avoid damage, do not use it in a wet or
dusty environment.
Do not use the product near a device that generates
a strong electromagnetic field or electrostatic charge,
as these may cause erroneous measurements.
To avoid damage to the product, protect it from
vibration or shock during transport and handling, and
be especially careful to avoid dropping.
If the protective functions of the product are damaged,
either remove it from service or mark it clearly so that
others do not use it inadvertently.
x
_______________________________________________
Notes on Use
_______________________________________________
NOTE
To avoid corrosion from battery leakage, remove the
batteries from the product if it is to be stored for a
long time.
1
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Chapter 1 Overview
_______________________________________________
Chapter 1
Overview
1.1 Product Overview
This multimeter has DCV, ACV, DCA, ACA,
OHM, Diode check, Audible continuity, Capacitor,
Temperature and % of 4-20 mA tests. It also built-in
TRUE-RMS for non-linear and traditional loads, and
frequency measurement helps detect the presence of
harmonics in neutral conductors and determine
whether they are the result of unbalanced phases or
non-linear loads. The display of Harmonic Ratio will
be helpful for quickly to know the presence of
harmonic. Smart scanning display lets you can see
the T1, T2 and
T values for temperature
measurements periodical. The built-in optical RS232C will assist you to capture the data without
hazardous as the high voltage has been measured.
2
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Chapter 1 Overview
_______________________________________________
1.2 Features
The multimeter is shown in the following Figure.
This meter has a lot of functions can be used in
HVAC, Power, Process fields, Electronic/Electrical
system diagnostics and troubleshooting. It will be
the best one of your need. See below detail:
Resolution of display: 9,999 counts for Voltage
and frequency and 3,999 counts for other
measurements.
TRUE RMS measurement for non-linear and
traditional loads.
Both paths of Current and Voltage can do
frequency measurement.
The thermocouple types of temperature
measurement can be selected K and J.
Scan T1, T2 and T1-T2 displays.
% of mA display can be selected for 4-20 mA or
0-20 mA.
The timer of auto power save can be adjusted
from 1 to 99 minutes even disable this function.
Dynamic Recording helps to record the variation
of tests.
Data Hold to freeze displayed digital value.
Refresh Hold to freeze the digital value for
difficult measuring place.
Relative function
Auto and Manual Ranging
Communication with RS-232C
3
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Chapter 2 Names and Functions of Parts
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Chapter 2
Names and
Functions of Parts
4
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Chapter 2 Names and Functions of Parts
_______________________________________________
2.1 Push Buttons
The operation of push-button is shown as below.
When push the button, a display symbol will light,
and the beeper will sound. Turning the rotary switch
to another switch setting resets all push buttons to
their default state.
SHIFT
button
For voltage and current measurements, press this
button momentarily to cycle through DC,
frequency and AC tests.
For voltage measurement, press this button for
more than 1 second to set Harmonic ratio
measurement.
For mA measurement, press this button for more
than 1 second to set % of 4-20mA display.
For temperature test, press this button
momentarily to cycle through T2, ∆TandT1
tests. Press this button for more than 1 second to
set scanning the T1, T2 and ∆Tdisplays.
5
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Chapter 2 Names and Functions of Parts
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For Ohm test, press button momentarily to toggle
"Audible continuity mode" ON/OFF. Pushing this
button for more than 1 second will exit the
continuity function and returns to the autoranging ohm measurement.
HOLD
button (Data Hold or Refresh Hold)
Press this button momentarily to toggle data hold
on or off. The display shows
HOLD
to indicate
the hold function.
The data hold function allows operator to hold the
displayed digital value, if you select " Refresh
Hold " by Power-ON Options, the reading is
updated to the display automatically when the
reading changes. The beeper sounds a tone to
remind user, that an update has occurred.
REC
button (Dynamic Recording)
Records maximum, minimum, and calculates true
average. Press this button for more than 1 second
to toggle recording mode on or off.
Press this button momentarily to cycle through
MAX, MIN, MAX-MIN, AVG and present (
REC
) readings.
The beeper sounds when a new maximum or
minimum value is recorded.
6
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Chapter 2 Names and Functions of Parts
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REL
button
Press this button momentarily to toggle the relative
mode ON or OFF.
RANGE
button
In auto-range press this button momentarily to
select manual range and turn off the "AUTO"
annunciator.
In manual range, press this button momentarily to
step up 1 range at one time, press this button for
more than 1 second to select auto-range.
In auto-range, the "AUTO" annunciator is lit and
the meter will select an appropriate range for
measurement being made. If a reading is greater
than maximum available range, "OL"(overload) is
displayed on the screen. The meter selects a lower
range when reading is less than about 9% of full
scale.
For temperature measurement, press this button
momentarily to cycle throughK/ ,K/ ,J/
andJ/ , then come backK/ .Thesesetswill
disappear after power save. It will be set to
original setup condition when power ON.
7
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Chapter 2 Names and Functions of Parts
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Power off position.
AC or DC voltage measurements.
Initial test is defined to AC.
Diode Check
Ohm and Continuity measurements
Capacitance measurement.
AC or DC Current measurements
AC or DC Current measurements.
A
AC or DC Current measurements.
T
1
T
2
Temperature measurement
2.2 Rotary Switch
To select function, turn the rotary switch to a switch
setting. Then the meter is ready for use. (If you
press and hold any push button while pushing the
meter from OFF to ON, the display will remain lit
until the push button is released.)
8
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Chapter 2 Names and Functions of Parts
_______________________________________________
2
3
4
1
2.3 Input Terminal
1. Volts, Ohms, Diode, T1, Capacitance and
Frequency of Voltage measurements.
2. Common terminal for all measurements except
temperature of T1 test.
3. Current (maximum 400 mA) and temperature of
T2 measurements.
4. Current (maximum 10 A continuous) and
temperature of T2 measurements.
9
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Chapter 2 Names and Functions of Parts
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APS
Enable Auto power save
A
UTO
Indicates AUTO range Mode
HOLD
Data hold annunciator
J
K
Thermocouple type display
T1T
2
T1 or T2 temperature measurement
T
T1-T2 temperature measurement
SCAN
Scan the T1, T2 and T measurements
RS232C
Enable RS-232C
REL
Relative mode annunciator
Direct Current or Voltage
Alternating Current or Voltage
REC
Dynamic recording mode, Present reading
MAX-MIN
Different reading for MAX-MIN
MAX
Maximum reading
MIN
Minimum reading
AVG
Average reading
Diode measurement
Continuity function annunciator
Low battery indicator
2.4 LCD Display Illustration
10
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Chapter 2 Names and Functions of Parts
_______________________________________________
,
Units of Temperature
H%
Harmonics ratio
%
% display for 4-20mA measurement
mV
Units of Voltage measurement
µ
m
A
Units of Current measurement
µ
mF
Units of Capacitance measurement
Mk Ω
Units of Resistance (ohm) measurement
kHz
Units of frequency measurement
Bar-graph indicator
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