replacement guide (from the 3560 to the rm3545...
TRANSCRIPT
Replacement Guide
1. Measurement
2. Functionality
3. External Control (EXT I/O)
4. Commands
Please prepare copies of the user manuals for the old and new instruments and review the applicable sections of each.
If you do not have access to these manuals, they can be downloaded in PDF format from your myHIOKI website.
http://www.hioki.com/
Please note that this guide may be revised or up dated without notice.
(From the 3560 to the RM3545 Series)
The RM3545 Series includes Models RM3545, RM3545-01 and RM3545-02.Please verify the specifications of the replacement model prior to purchasing.
1. Measurement
(1) Resistance measurement method (difference between DC and AC)
The 3560 and RM3545 use different resistance measurement methods. The 3560 uses AC measurement, while the RM3545
uses DC measurement. These methods differ as follows:
○ Resistance (impedance) measurement can be performed using the DC or AC method.
• DC method
• AC method
RM3542, RM3543, RM3544, RM3545, RM3548 resistance meters
Standard digital multimeters
Standard insulation resistance meters
3561, BT3562, BT3563, 3554 Battery HiTesters
Standard LCR meters
The DC measurement method is used widely in applications such as measurement of general-purpose resistors, winding
resistance, contact resistance, and insulation resistance. Inthe DC method, the measurement setup consists of a DC power
supply and a DC voltmeter. While its simple circuitry makes it easier to increase accuracy, it is prone to measurement errors
due to electromotive force that may be present in the measurement path.
See: "Appendix 9 Effect of Thermal EMF" (RM3545 Instruction Manual p.A23)
The AC method is used when it is not possible to measure using DC, for example in impedance measurement of inductors,
capacitors, or batteries. Since an AC ohmmeter consists of an AC power supply and an AC voltmeter, it is not affected by DC
electromotive force. On the other hand, caution is necessary since results differ from those obtained using DC measurement,
for example due to components such as core loss in coils’ series equivalent resistance.
DC ohmmeter AC ohmmeterMeasurementsignalDetection voltage
DC AC
Advantages High-precision measurement is possible. Not affected by electromotive force.Reactance measurement is possible.
Disadvantages Affected by electromotive force since not capable of performing DC superimposed measurement. (Thermal EMFs can be corrected by the OVC function.)
Difficult to increase precision.
Applications DC resistance of windings such as transformers and motors, contact resistance, insulation resistance, PCB wiring resistance
Bat tery impedance, inductors , capaci tors , electrochemical measurement
Measurementrange
10-8 to 1016 10-3 to 108
Hiokiinstruments
Ohmmeters : RM3542 to RM3548DMMs : 3237 to 3238Insulation resistance meters : IR4000 series, DSM series
Battery HiTesters : 3561, BT3562, BT3563LCR meters : 3570, IM3533, IM3523, etc.
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The purpose of AC resistance measurement is to eliminate the offset voltage. The RM3545’s OVC function plays the same
role. The OVC function is always on during low-power resistance measurement.
Due to the skin effect, the DC and AC values for thick materials differ (for example, at a depth of approximately 2.1 mm on a
copper skin at 1 kHz).
JIS C 5442, “Test methods of low-power electromagnetic relays for industrial control circuits,” defines applicable test methods
and includes the following items:
4.5.2(2) When using a DC voltage, measurement shall be performed by reversing switch S so as to switch the electrode polarity.
→ The described functionality corresponds to the RM3545’s OVC function.
4.5.4(1) Either a DC or AC power supply may be used for measurement, but the measured value obtained from DC measurement
shall be used in the event that there is doubt as to the accuracy of the measured value.
See: http://kikakurui.com/c5/C5442-1996-01.html
(2) Range structure comparison
•
○ How to set the number of display digits
Menu [P.2/2] Setting screen (SETTING) → Measurement Setting screen (MEAS) → Low-power resistance measurement (LOW POWER)
•
•
○ How to set the number of display digits
Menu [P.2/2] Setting screen (SETTING) → Measurement Setting screen (MEAS) → Number of measurement digits (Ω DIGITS)
With the low-power setting on, the RM3545 has a maximum open voltage of 20 mV, like the 3560 (when the voltage limiter is on).
3560 (For SLOW/MEDIUM, limiter is ON) RM3545 (Low-power setting is ON)
RangeDisplay range
Measurement current
Open terminal voltage
Range Display rangeMeasurement
current
Open terminal voltage
30mΩ 31.000mΩ 7.4mA
20mV max
- - - -300mΩ 310.00mΩ 1mA - - - -3Ω 3.1000Ω 100μA 1000mΩ 1200.00mΩ 1mA
20mV max30Ω 31.000Ω 10μA 10Ω 12.0000mΩ 500μA300Ω 310.00Ω 5μA 100Ω 120.000Ω 50μA3kΩ 3.1000kΩ 1.5μA 1000Ω 1200.00Ω 5μA
The 3560 and RM3545 have different range structures. When setting the range by command, an optimal range is selected based
on the setting value.
The RM3545 provides a six-digit display (when the low-power setting is on). The number of display digits can be changed (from
five to seven).
(3) Measurement leadsUse of 3560 measurement leads (9287-10, etc.) with the RM3545 is not recommended (and doing so will place the
performance of the instrument outside the accuracy guarantee). The leads that come with the RM3545 and optional
measurement leads (L2101, etc.) include a guard terminal in order to reduce the effects of external noise. Although there is
no difference in the leads’ center value (average value), use of the 3560 measurement leads with the new instrument will
make measurement more susceptible to the effects of noise, so their performance should be verified in the environment in
which they are to be used first.
If you plan to make your own measurement leads, refers to “Appendix 10: Making Your Own Measurement Leads” in the
RM3545 User Manual.
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2. Functionality
(1) Hold function
(2) Manual comparator
(3) Comparator table
The RM3545 incorporates an auto-hold function. Please note that the manner in which this function operates differs from the
3560’s hold function. If you have been using the 3560’s hold function in combination with its EXT I/O functionality, change the
RM3545’s trigger source to external trigger [EXT].
○ How to change the trigger source setting
Menu [P.2/2] Setting screen (SETTING) → EXT I/O Setting screen (I/O) → Set the trigger source (TRIG SOURCE) to
external trigger (EXT).
The RM3545 does not provide functionality that corresponds to the 3560’s manual comparator function (MANU signal).
The RM3545’s panel load function corresponds to the 3560’s comparator table.
○ Panel data saved
Resistance measurement range, measurement speed, zero-adjustment, averaging, comparator, judgment tone, scaling,
temperature correction (TC), auto-hold, etc.
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3. External Control (EXT I/O)
The timing of some aspects of the RM3545’s operation differs from that of the 3560. Be sure to review the timing charts in the
RM3545’s User Manual.
(1) Switching between current sink (NPN) and current source (PNP)
The RM3545 allows you to switch between NPN and PNP operation. To control the instrument in the same way as the 3560,
set the NPN/PNP switch to NPN. The instrument ships with the switch in the NPN position. The EXT I/O mode cannot be
changed using commands.
(2) Connector
The RM3545 connector is configured as follows:
2 14 36 58 79
202122232425262728293031323334353637
141516171819 10111213
OU
T2, BC
D7-3, B
CD
3-3O
UT0, B
CD
7-1, BC
D3-1
BIN
8, BC
D6-3, B
CD
2-3B
IN6, B
CD
6-1, BC
D2-1
BIN
4, BC
D5-3, B
CD
1-3T_E
RR
, BIN
2, BC
D5-1, B
CD
1-1T_PA
SS
, BIN
0, BC
D4-3, R
NG
_OU
T3LO
, BC
D4-1, R
NG
_OU
T1H
I, HILO
ER
R
ISO
_CO
M
ISO
_5VS
CN
_STO
PLO
AD
5LO
AD
3LO
AD
1K
EY
_LOC
KB
CD
_LOW
TRIG
, IN0
OU
T1, BC
D7-2, B
CD
3-2B
IN9, B
CD
7-0, BC
D3-0
BIN
7, BC
D6-2, B
CD
2-2B
IN5, B
CD
6-0, BC
D2-0
BIN
3, BC
D5-2, B
CD
1-2T_FA
IL, BIN
1, BC
D5-0, B
CD
1-0O
B, B
CD
4-2, RN
G_O
UT2
IN IND
EX
, BC
D4-0, R
NG
_OU
T0
EO
MIS
O_C
OM
PR
INT, IN
1M
UX
LOA
D4
LOA
D2
LOA
D0
CA
L0A
DJ
Connector: (Instrument Side)37-pin D-sub female with #4-40 screws
Mating Connectors:DC-37P-ULR (solder type) /DCSP-JB37PR (pressure weld type)Japan Aviation Electronics Industry Ltd.
Left: Current sink (NPN)Right: Current source (PNP)
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(3) Signal table
Power OutputDescription 3560 RM3545 Description 3560 RM3545
Power EXT.DCV ISO_5V Comparator Hi Hi HIGround/common GND ISO_COM Comparator IN IN IN
Input Comparator Lo Lo LODescription 3541 RM3545 Comparator HiLo - HILO
TRIG(measurement start)
TRIG TRIG Measurement fault NG ERR
Zero adjustment 0ADJ 0ADJ Measurement complete EOC EOM
Printer output PRINT PRINTAnalog measurement
complete- INDEX
Calibration - CAL Range data output - RNG_OUTKey lock - KEY_LOCK BCD output * - BCDm–n
BCD low-order byte output* - BCD_LOWBIN output
- BIN0 to 9Table/panel COMP.0 to 4 LOAD0 to 5 - OB
General-purpose input - I N0, 1 General-purpose output - OUT0 to 2
Multiplexer -MUX
SCN_STOPMultiplexer -
T_PASST_FAILT_ERR
* BCDm-n: Outputs the nth bit of digit m. (BCD1-x is the lowermost digit, while BCDx-0 is the LSB.)
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2013 年 11 月
users_guide_RM3545_fr_3560-J1-3YE
(4)判定結果の取得について
RM3545 には 3560 のマニュアルコンパレータ機能(MANU 信号)に相当する機能はありません。
また、3560 と RM3545 では次の点が異なります。
[3560]
・TRIG 入力後 1ms で EOC 信号が ON になり、最新の判定値が出力
・EOC 信号は 1ms のパルス
・判定結果は EOM 信号が ON で更新されるがクリアされることはない
[RM3545]
・TRIG 入力後測定を開始してから EOM 信号が ON になり判定値を出力
・EOM 信号は TRIG 信号を受け付けると OFF 出力
・判定結果は TRIG 信号が ON になるとクリア
3560 ホールド状態のタイミングチャート
TRIG
EOC
OFFON
判定結果 / BCD
ONOFF OFF
ON/OFFON/OFF
1ms
1ms
RM3545 外部トリガ[EXT]設定のタイミングチャート
TRIG
EOM
OFFON
判定結果 / BCD
ON
OFF
OFF
OFF
OFF
ON/OFF
測定中
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The RM3545 does not provide any functionality that corresponds to the 3560’s manual comparator function (MANU signal).
Additionally, the 3560 and RM3545 differ as follows:
[3560]
• The EOC signal turns on 1 ms after TRIG input, and the most recent judgment value is output.
• The ECO signal consists of a 1 ms pulse.
• The judgment results are updated while the EOM signal is on but are not cleared.
[RM3545]
• The EOM signal turns on once measurement starts after TRIG input, and the judgment value is output.
• Off output is generated for the EOM signal once the TRIG signal is accepted.
• The judgment results are cleared when the TRIG signal turns on.
3560: Hold state timing chart
RM3545: Timing chart when using the external trigger [EXT] setting
2013 年 11 月
users_guide_RM3545_fr_3560-J1-3YE
(4)判定結果の取得について
RM3545 には 3560 のマニュアルコンパレータ機能(MANU 信号)に相当する機能はありません。
また、3560 と RM3545 では次の点が異なります。
[3560]
・TRIG 入力後 1ms で EOC 信号が ON になり、最新の判定値が出力
・EOC 信号は 1ms のパルス
・判定結果は EOM 信号が ON で更新されるがクリアされることはない
[RM3545]
・TRIG 入力後測定を開始してから EOM 信号が ON になり判定値を出力
・EOM 信号は TRIG 信号を受け付けると OFF 出力
・判定結果は TRIG 信号が ON になるとクリア
3560 ホールド状態のタイミングチャート
TRIG
EOC
OFFON
判定結果 / BCD
ONOFF OFF
ON/OFFON/OFF
1ms
1ms
RM3545 外部トリガ[EXT]設定のタイミングチャート
TRIG
EOM
OFFON
判定結果 / BCD
ON
OFF
OFF
OFF
OFF
ON/OFF
測定中
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TRIG
EOC
Judgement result/BCD
ON
ON1ms
OFFOFF
OFF
ON/OFF ON/OFF
TRIG
EOM
Judgement result/BCD
ON
ON
OFF
OFF
OFF
OFF
OFFON/OFF
(4) Acquiring judgment results
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4. Commands
As a rule, the RM3545 is not compatible with 3560 messages. Please replace 3560 messages with their corresponding RM3545
messages. To set the open voltage to 20 mV, turn on low-power resistance measurement (LP). The following RM3545 messages
are related to low-power resistance measurement:
(1) Message correspondence chart
3560 message Corresponding RM3545 message Explanation
Low-power resistance measurement (LP).[:SENSe:]RESistance:LP:STATe To set the open voltage to 20 mV, turn on low-power
resistance measurement (LP).[:SENSe:]RESistance:LP:STATe?
Shared commands*CLS *CLS
While shared commands can generally be used, the response from the instrument may differ.See the RM3545 Communications Command User Manual.
*ESE *ESE
*ESE? *ESE?
*ESR? *ESR?
*IDN? *IDN?
*OPC *OPC
*OPC? *OPC?
*RST *RST
*SRE *SRE
*SRE? *SRE?
*STB? *STB?
*TRG *TRG
*TST? *TST?
*WAI *WAI
Load measured values:MEASure:RESIstance? :FETCh?
The format differs. See the Communications Command User Manual.
:MEASure:BATTery?
The RM3545 does not provide voltage measurement functionality.
:MEASure:VOLTage?
:MODe
:MODe?
Zero adjustment:ADJust? :ADJust? Can be used without modifi cation.
:ZERoclear :ADJust:CLEarThe format differs. See the Communications Command User Manual.
Measurement speed:SAMPle :SAMPle:RATE The format differs. See the Communications Command
User Manual.:SAMPle? :SAMPle:RATE?
Comparator:CSET:BEEPer :CALCulate:LIMit:BEEPer
The format differs. See the Communications Command User Manual.
:CSET:BEEPer? :CALCulate:LIMit:BEEPer?
:CSET:RPARameter :CALCulate:LIMit:UPPer / :CALCulate:LIMit:LOWer
:CSET:RPARameter? :CALCulate:LIMit:UPPer? / :CALCulate:LIMit:LOWer?
:CSET:MODe The RM3545 does not provide voltage measurement functionality.:CSET:MODe?
:COMParator :CALCulate:LIMit:STATe:SYSTem:PANel:SAVE
The RM3545 does not provide a comparator table. Use the panel load function as a substitute for the comparator table. Additionally, the comparator can be used without saving panel data.
:CSET:NUMBer
:COMParator? :CALCulate:LIMit:STATe?:SYSTem:PANel:LOAD:CSET:NUMBer?
:CSET:RRANge [:SENSe:]RESistance:LP:RANGe The RM3545 uses a shared set of comparator and normal ranges. The range varies depending on whether the LP setting is on or off (when replacing the 3560, use with the LP setting on).
:CSET:RRANge? [:SENSe:]RESistance:LP:RANGe?
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3560 message Corresponding RM3545 message Explanation
Comparator:CSET:VPARameter
The RM3545 does not provide voltage measurement functionality.
:CSET:VPARameter?
:CSET:VRANge
:CSET:VRANge?
:CTMode :TRIGger:SOURce The RM3545 does not have an external control terminal mode. The trigger source (internal trigger/external trigger) serves as a substitute. For timing charts, see the RM3545 User Manual.
:CTMode? :TRIGger:SOURce?
Hold:HOLD [:SENSe:]HOLD:AUTO / :TRIGger:SOURce The RM3545’s hold function acts as an auto-hold
function. To stop operation after each measurement, set the trigger source to external trigger.:HOLD? [:SENSe:]HOLD:AUTO? / :TRIGger:SOURce?
Measurement range:RRANge [:SENSe:]RESistance:LP:RANGe The format differs. See the Communications Command
User Manual.The range varies depending on whether the LP setting is on or off (when replacing the 3560, use with the LP setting on).
:RRANge? [:SENSe:]RESistance:LP:RANGe?
:AUTorange [:SENSe:]RESistance:RANGe:AUTO
:AUTorange? [:SENSe:]RESistance:RANGe:AUTO?
:VRANge
:VRANge?
Hold:SENSecheck [:SENSe:]RESistance:LP:CONTactcheck The format differs. See the Communications Command
User Manual.The range varies depending on whether the LP setting is on or off (when replacing the 3560, use with the LP setting on).
:SENSecheck? [:SENSe:]RESistance:LP:CONTactcheck?
Supply frequency:FERQuency :SYSTem:LFRequency The format differs. See the Communications Command
User Manual.:FERQuency? :SYSTem:LFRequency?
Communication setting:HEADer :SYSTem:HEADer The format differs. See the Communications Command
User Manual.:HEADer? :SYSTem:HEADer?
Lock function:LIMit
The RM3545 does not have a limiter function.:LIMit?
:LOCK:EXTernalThe RM3545 does not have an I/O lock function.
:LOCK:EXTernal?
:LOCK:KEY :SYSTem:KLOCk The format differs. See the Communications Command User Manual.:LOCK:KEY? :SYSTem:KLOCk?
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UG_3560_to_RM3545_E2-57B
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