5700A/5720A
Series II Multi-Function Calibrator
Operator Guide
PN 601648
May 1996
? 1996 Fluke Corporation, Inc.
All rights reserved. Printed in U.S.A. ?Contents
What is in this Guide?................................2
Safety Summary.........................................2
P Fuse and Line Voltage..........................4
Basic Operation..........................................5
A Short Calibration Exercise.......................5
Warming up the Calibrator.....................5
Exercise: Running dc Zero Calibration........6
Connecting a Meter................................6
Applying a dc Voltage............................7
Checking the Calibrator Uncertainty.......7
Exercise: Activating Error Mode.............8
Checking the Meter’s Higher and Lower
Ranges.....................................8
Exercise: Applying an ac Voltage...........9
Front Panel Features..................................10
Output Display (Left Side)......................10
Control Display (Right Side)...................10
Display Screen Saver.............................11
Front Panel Keys...................................12
Front Panel Connectors.........................21
Rear Panel Features..................................23
Rear Panel Connectors..........................23
Switches and Fuse Holder......................26
Cable Recommendations............................27
Connecting to a UUT (Unit Under Test)......28
Using Error Mode.......................................35
Operating in Remote..................................37
RS-232-C Interface Parameters..................38
1What is in this Guide?
The Operator Guide begins with safety
information, a short meter calibration exercise for
new users, then continues with a condensation of
information from the Operator Manual. For
complete information about the Calibrator’s
features, functions, and operating procedures,
refer to the Operator Manual.
Safety Summary
Warning
[
Lethal voltage may be present on the
terminals. Observe all safety
precautions in this guide.
To avoid electrical shock hazard, the operator
should not electrically contact the OUTPUT HI or
SENSE HI binding posts. During operation, lethal
voltages of up to 1100V ac or dc may be present
on these terminals.
Whenever possible, keep one hand away from the
equipment to reduce the hazard of current flowing
through vital organs of the body.
Symbols Marked on Equipment
[
Warning - Risk of electric shock.
Q
Ground Protective ground (earth) terminal.
P
Attention Refer to the manual for
information about this feature. This symbol
appears on the rear panel ground terminal
and by the fuse holder.
Use the Proper Fuse
To avoid fire hazard, use only the fuse specified
on the line voltage selection switch label.
2Safety Summary (cont.)
[
Grounding the Calibrator
The Calibrator is a Safety Class I (grounded
enclosure) instrument. The enclosure is grounded
through the grounding conductor of the power
cord. To avoid electrical shock, plug the power
cord into a properly wired earth grounded
receptacle before making any connections to the
Calibrator terminals. A protective ground
connection by way of the grounding conductor in
the power cord is essential for safe operation.
[
Do Not Remove the Cover
To avoid personal injury, do not remove the
Calibrator cover. Do not operate the Calibrator
without the cover properly installed. There are no
user-serviceable parts inside the Calibrator, so
there is no need to ever remove the cover.
3P
Fuse and Line Voltage
The correct fuse type for each voltage selection is
indicated on the rear panel as shown in the
following figure.
CAUTION FOR FIRE PROTECTION REPLACE ONLY
WITH A 250V FUSE OF INDICATED RATING.
VOLTAGE FUSE-F1 VOLTAGE FUSE-F1
SELECTION SELECTION
S2 S3 S4 S2 S3 S4
100V 200V

您好！FLUKE 5720是一款高精度的多功能電子兆歐表及接地測試儀，專為電氣和電子行業(yè)設(shè)計(jì)，用于測量電氣設(shè)備、電纜線路、電源插座、接地系統(tǒng)等的絕緣電阻（MΩ）、連續(xù)性（蜂鳴器檢測）以及地線電阻。具體使用說明如下： 1. **開機(jī)與關(guān)機(jī)**：長按Power鍵開機(jī)，顯示默認(rèn)設(shè)置。完成測量后，再次長按時(shí)關(guān)閉儀器。 2. **選擇測量模式**：在主屏幕上，通過箭頭按鍵導(dǎo)航至"Ω"或"MΩ"以選擇電阻測量模式；選擇"GND"進(jìn)入接地測試模式。 3. **連接測試引腳**：將紅色測試探針（L）接觸待測導(dǎo)體的正極，黑色測試探針（E）接觸負(fù)極或設(shè)備外殼。對于接地測試，將黑色探針插入專門的地線孔并與大地接觸。 4. **進(jìn)行測量**：啟動測量，顯示屏?xí)@示出當(dāng)前所選項(xiàng)目的電阻值。若進(jìn)行接地測試，當(dāng)電阻值低于預(yù)設(shè)閾值時(shí)，儀器會發(fā)出蜂鳴聲表示導(dǎo)通。 5. **讀取數(shù)據(jù)與記錄**：等待測量結(jié)果穩(wěn)定后，讀取顯示屏上的數(shù)值，并可選擇保存或打印測量報(bào)告。 6. **校準(zhǔn)與維護(hù)**：請參照用戶手冊定期對FLUKE 5720進(jìn)行校準(zhǔn)，并確保儀器保持干燥、清潔，避免在高溫、高濕或磁場強(qiáng)的環(huán)境下使用。 請務(wù)必詳細(xì)閱讀FLUKE 5720的完整用戶手冊，以便獲得更準(zhǔn)確的操作指導(dǎo)和安全注意事項(xiàng)。如有其他問題或需要進(jìn)一步的幫助，請隨時(shí)咨詢我們。