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Maynuo Electronic
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M8873
User Manual
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Maynuo Electronic M88, M8851, M8811, M8852, M8812 User Manual

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USER’S MANUAL
Programmable DC power supplier
Models M88XX Series
(Including M8811/M8812/M8813/M8851/M8852/M8853/
M8871/M8872/M8873/M8874)
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Content
Chapter 1 Introduction ....................................................................................................... 1
Chapter2 Technical Specifications .................................................................................... 2
2.1 Main Technical Specification .............................................................................................................. 2
2.2 Supplemental Characteristics............................................................................................................. 6
2.3 M88XX Power Suppliers Dimension .................................................................................................. 6
Chapter 3 Quick Start ......................................................................................................... 9
3.1 Front-panel and Rear-panel ............................................................................................................... 9
3.2 Preliminary Checkout ....................................................................................................................... 10
3.3 If the Power supplier Does Not Turn On .......................................................................................... 10
3.4 How to Adjust the Carrying Handle .................................................................................................. 11
3.5 How to Rackmount the Instrument ................................................................................................... 12
Chapter 4 Panel Operation ............................................................................................... 13
4.1 Key Layout ........................................................................................................................................ 13
4.2 Front-panel Operation Overview ...................................................................................................... 14
4.3 Constant Voltage Operation ............................................................................................................. 14
4.4 Constant Current Operation ............................................................................................................. 15
4.5 Saving and Recalling Operation ....................................................................................................... 15
4.6 Menu Operation ................................................................................................................................ 15
4.6.1 Menu Description ....................................................................................................................... 15
4.6.2 Menu Function ........................................................................................................................... 18
4.7 Output On-Off Operation .................................................................................................................. 23
4.8 Remote Measurement Function ....................................................................................................... 23
4.9 Milliohmmeter Function .................................................................................................................... 24
4.10 Voltmeter Function ......................................................................................................................... 25
Chapter 5 Remote Operation Mode ................................................................................. 26
5.1 M-131Communication Cable ............................................................................................................ 26
5.2．Communication between Power Supplier and PC ........................................................................ 26
Chapter 6 SCPI Communication Protocal .................................................................... 28
6.1 Communication command introduction ............................................................................................ 28
6.2 Commomly used relevant command description ............................................................................. 28
6.2.1 Basic command (IEEE-488.2 Common Command Set) ........................................................... 28
6.2.2 Command specified by M8800 software ................................................................................... 29
6.2.3 Measurement Command ........................................................................................................... 31
M88XX Series Programmable DC Power Suppliers
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6.2.4 Setting Command ...................................................................................................................... 31
6.2.5 List Operation（LIST）Related Command ............................................................................... 34
Quick Reference ................................................................................................................ 39
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Chapter 1 Introduction
M88XX Series power suppliers are high performance single-output programmable DC power suppliers with communication interface, possessing the character of fast rise time speed (The rise speed of M8811 power supplier can be less than 10mS and that of M8851 can be less than 20mS) The combination of bench-top and system features in these power suppliers provides versatile solutions for your design and test requirements. The M88XX Series can not only be programmed through the keyboard on the panel, but also be functioned as voltmeter and milliohmmeter, which will bring great convenience to the users. As a regeneration product of ordinary programmable power suppliers, M88XX Series power suppliers are more cost-effective.
M88XX Series power suppliers’ features
• Low Periodic And Random Deviation (PARD) and noise
• High resolution and accuracy (0.1mV/0.01mA)
• Installing a high-accuracy 5 1/2 voltmeter and milliohmmeter
• Supporting high-accuracy and dynamic programming output
• High –luminance VFD screen and two lines& four ways display
• Smart fan will be automatically initiated according to the temperature.
• Supporting remote voltage compensation and multidata storage
• Supporting external trigger input and output.
• Power-on-self-test，software calibration and standard designed instrument stand
• Supporting TTL level Serial communication interface
M88XX Series Programmable DC Power Suppliers
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Model
M8811
M8812
M8813
Input Rating Voltage
0-30V
0-75V
0-150V
Current
0-5A
0-2A
0-1A
Load Regulation Voltage
＜0.01%+0.5mV
＜0.01%+0.5mV
＜0.01%+0.5mV
Current
＜0.01%+0.1mA
＜0.01%+0.1mA
＜0.01%+0.1mA
Setting Value Resolution Voltage
0.5mV
1mV
2mV
Current
0.1mA
0.05mA
0.01mA
Readback Value Resolution Voltage
0.1mV
0.1mV
1mV
Current
0.01mA
0.01mA
0.01mA
Setting Value Accuracy Voltage
0.01%+2mV
0.01%+5mV
0.01%+15mV
Current
0.05%+1mA
0.05%+0.5mA
0.05%+0.1mA
Readback Value Accuracy Voltage
0.02%+5mV
0.02%+12mV
0.02%+25mV
Current
0.1%+5mA
0.05%+2mA
0.05%+1mA
Periodic And Random Deviation Voltage
3mvp-p
5mvp-p
10mvp-p
Current
2mA rms
1mA rms
0.5mA rms
Voltmeter Accuracy
0-12V Accuracy: 0.02%+2mV; 0-50V Accuracy: 0.02%+5mV
Milliohmmeter Accuracy
10W. 0-1000mΩ Accuracy: 0.2%+3 mΩ; 1000-10000 mΩ Accuracy: 0.2%+6 mΩ
Working Condition
0-40℃; 0-90% RH
Power Required
AC 110V/220V+10%; 50/60 HZ
Weight
9Kg
Dimension
108X214X365mm
Chapter2 Technical Specifications
2.1 Main Technical Specification
M881X Series power suppliers technical specification table
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Model
M8851
M8852
M8853
Input Rating 0-6V
0-30V
0-75V
0-60A
0-20A
0-8A
Load Regulation
＜0.01%+1mV
＜0.01%+1mV
＜0.01%+1mV
＜0.01%+0.1mA
＜0.01%+0.1mA
＜0.01%+0.1mA
Setting Value Resolution
0.1mV
0.5mV
1mV
1mA
0.5mA
0.2mA
Readback Value Resolution
0.1mV
0.1mV
0.1mV
0.1mA
0.1mA
0.1mA
Setting Value Accuracy
0.01%+1mV
0.01%+5mV
0.01%+10mV
0.05%+6mA
0.05%+2mA
0.05%+1mA
Readback Value Accuracy
0.02%+2mV
0.02%+5mV
0.02%+12mV
0.05%+30mA
0.05%+15mA
0.05%+8mA
Periodic And Random Deviation 3mvp-p
5mvp-p
7mvp-p
15mA rms
7mA rms
4mA rms
Voltmeter Accuracy
0-12V Accuracy: 0.02%+2mV; 0-50V Accuracy:
0.02%+5mV
Milliohmmeter Accuracy
10W. 0-1000mΩ Accuracy: 0.2%+3 mΩ; 1000-10000 mΩ Accuracy: 0.2%+6 mΩ
Working Condition
0-40℃; 0-90% RH
Power Required
AC 120V/230V+10%; 50/60 HZ
Weight
28Kg
Dimension
428X103.5X453.5mm
M885X Series power suppliers technical specification table
M88XX Series Programmable DC Power Suppliers
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Model
M8871
Input Rating
0-15V, 0-60A
Load Regulation
<0.01%+1mV, <0.01%+0.1mA
Setting Value Resolution
0.1mV, 1mA
Readback Value Resolution
0.1mV, 0.05%+6mA
Readback Value Accuracy
0.03%+5mV, 0.05%+45mA
Ripple
4mvp-p, 10mA rms
Voltmeter Accuracy
0-12V Accuracy: 0.02%+2mV; 0-50V Accuracy:
0.02%+5mV
Milliohmmeter Accuracy
10W 0-1000mAuracy:0.2%+3mΩ;1000-10000mΩ Acuracy:0.2%+6 mΩ
Working Condition
0~40oC; 0~90% RH
Power Required
AC 100V/120V/220V+10%; 50/60 HZ
Weight
38Kg
Dimension
583mm (W)*180mm(H)*445mm(D)
Model
M8872
Input Rating
0-30V, 0-35A
Load Regulation
<0.01%+1mV, <0.01%+0.1mA
Setting Value Resolution
0.5mV, 0.5mA
Readback Value Resolution
0.1mV, 0.05%+2mA
Readback Value Accuracy
0.03%+5mV, 0.05%+25mA
Ripple
5mvp-p, 5mA rms
Voltmeter Accuracy
0-12V Accuracy: 0.02%+2mV; 0-50V Accuracy:
0.02%+5mV
Milliohmmeter Accuracy
10W 0-1000 mΩAccuracy:0.2%+3 mΩ; 1000-10000mΩ Accuracy:0.2%+6 mΩ
Working Condition
0~40oC; 0~90% RH
Power Required
AC 100V/120V/220V+10%; 50/60 HZ
Weight
38Kg
Dimension
583mm (W)*180mm(H)*445mm(D)
M887X Series power suppliers technical specification table
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Model
M8873
Input Rating
0-75V, 0-15A
Load Regulation
<0.01%+1mV, <0.01%+0.1mA
Setting Value Resolution
2mV, 0.2mA
Readback Value Resolution
0.1mV, 0.05%+1mA
Readback Value Accuracy
0.03%+15mV, 0.05%+15mA
Ripple
6mvp-p, 3mA rms
Voltmeter Accuracy
0-12V Accuracy: 0.02%+2mV; 0-50V Accuracy:
0.02%+5mV
Milliohmmeter Accuracy
10W 0-1000 mΩAccuracy:0.2%+3 mΩ;1000-10000mΩ Accuracy:0.2%+6 mΩ
Working Condition
0~40oC; 0~90% RH
Power Required
AC 100V/120V/220V+10%; 50/60 HZ
Weight
38Kg
Dimension
583mm (W)*180mm(H)*445mm(D)
Model
M8874
Input Rating
0-100V, 0-11A
Load Regulation
<0.01%+1mV, <0.01%+0.1mA
Setting Value Resolution
2mV, 0.2mA
Readback Value Resolution
1mV, 0.05%+1mA
Readback Value Accuracy
0.03%+25mV, 0.05%+12mA
Ripple
8mvp-p, 2.5mA rms
Voltmeter Accuracy
0-12V Accuracy: 0.02%+2mV; 0-50V Accuracy:
0.02%+5mV
Milliohmmeter Accuracy
10W 0-1000 mΩAccuracy:0.2%+3 mΩ;1000-10000mΩ Accuracy:0.2%+6 mΩ
Working Condition
0~40oC; 0~90% RH
Power Required
AC 100V/120V/220V+10%; 50/60 HZ
Weight
38Kg
Dimension
583mm (W)*180mm(H)*445mm(D)
M88XX Series Programmable DC Power Suppliers
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2.2 Supplemental Characteristics
State Storage Memory: 50 user-configurable stored states
Recommended Calibration Interval: Once/ Year
AC Input Ratings (selectable via switch on the rear panel)
Option 01: 220VAC ± 10%, 47 to 63 Hz
Option.02: 110 VAC ± 10%, 47 to 63 Hz
Cooling: forced cooling
Operating Temperature：0 to 40 °C
Storage Temperature：-20 to 70 °C. Environmental Conditions：Designed for indoor use with pollution degree 2 environment. Designed to operate at maximum relative humidity of 95%.
2.3 M88XX Power Suppliers Dimension
The dimension of M881X Series is 256mmW x 108mm H x 365mm L. Please refer to the following figure：
Figure 2.1: M881X Power Suppliers Dimension Figure
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The dimension of M885X Series is 428mmW×103.5mmH×453.5mmL，Please refer to the following figure：
Figure 2.2: M885X Power Suppliers Dimension Figur
M88XX Series Programmable DC Power Suppliers
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The dimension of M887X Series is 482mmW×184.5mmH×583.5mmD. Please refer to the following figure：
Figure 2.3: M887X Power Suppliers Dimension Figur
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Chapter 3 Quick Start
This chapter mainly focuses on the brief introduction of the surface appearance and basic functions of M88XX Series power suppliers so that both experienced and inexperienced users can be acquainted with the new products quickly. Meanwhile, the chapter also clarifies some preliminary checkout that should be made prior to operation to make sure the normal running of the products.
3.1 Front-panel and Rear-panel
The front panel layout of M881X Series power supplier is as follows:
Picture 3.1: The Front Panel of M881X Series Power Suppliers
The upper half is black VFD display screen and knob
The bottom half, left side to right side, is Numberic keys 0-9, ESC key, Function keys, Up-Down keys, Enter key, Input terminall and Output terminal.
The rear-panel layout of M881X is as follows:
Picture 3.2: The Rear Panel of M881X Series Power Suppliers
M88XX Series Programmable DC Power Suppliers
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① Cooling Window ② Multifunction Interface Connector ③ 9 Pin COM Interface ④ Power Switch Key (110V / 220V) ⑤ Power Socket
3.2 Preliminary Checkout
The following steps help you verify that the power supplier is ready for use
1. Check the list of supplied items
Verify that you have received the following items with your power supplier. If anything is missing, contact your nearest Sales Office.
□ One power cord for your location
□ The user’s manual
□ One CD(only when you have bought communication accessories)
□ One communication cable (only when you have bought communication accessories)
□ One testing line（only M8811 ,M8812 ,M8813 have the testing line ）
2．Connect the power cord and turn on the power supplier.
When you turn on the power supplier, the VFD display screen will light up briefly and the power supplier performs its power-on self-test. Please check if there is any stroke loss on VFD display.
Warning：The power supplier is shipped from the factory with a power-line cord that has a plug appropriate for your location. Your power supplier is equipped with a 3-wire grounding type
power cord. The power supplier is grounded only when the power-line cord is plugged into an appropriate receptacle. Do not operate your power supplier without adequate cabinet ground connection.。
3.3 If the Power supplier Does Not Turn On
Use the following steps to help solve problems you might encounter when turning on the instrument.
1. Verify that there is AC power to the power supplier.
First, verify that the power cord is firmly plugged into the power receptacle on the rear panel of the power supplier. You should also make sure that the power source you plugged the power supplier into is energized. Then, verify that the power supplier is turned on.
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