Tenma 72-2685 User manual

INFORMATION ON WASTE DISPOSAL FOR CONSUMERS OF
ELECTRICAL & ELECTRONIC EQUIPMENT
When this product has reached the end of its life it must be treated as
Waste Electrical & Electronic Equipment (WEEE). Any WEEE marked
products must not be mixed with general household waste, but kept
separate for the treatment, recovery and recycling of the materials used.
Contact your local authority for details of recycling schemes in your area.
Made in China. PR2 9PP
V1.0
WHAT'S INSIDE?
Safety Instructions
Front Panel
Voltage and Current Adjustment Knob Operation
Operation of LOCK Function
Operation of Over Current Protection
Specifications
Remote Control
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3
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5
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6
7
Page Number
Details
Digital-Control and Programmable
DC Power Supply
Models: 72-2685, 72-2690, 72-2695, 72-2700,
72-2705, 72-2710, 72-2715 & 72-2720
1

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Main Features
•4-digit display
•Low noise
•Cooling fan controlled by Heatsink temperature
•Constant voltage
•Digital panel control
•Software calibration
•Over Current Protection
•2 adjusting modes of voltage and current
•Button lock function
Safety Instructions
•Do not block or obstruct the cooling fan vent opening.
•Avoid severe impacts or rough handling that could lead to damage.
•Do not discharge static electricity.
•Do not disassemble unless you are qualified as service personnel.
AC Input •AC input voltage: 110V / 120V / 220V / 230V, 50 / 60Hz
•Connect the protective grounding conductor of the AC
power cord to and earth ground, to avoid electrical
shock.
Operation
Environment
•Location: Indoor, no direct sunlight, dust
free, almost non-conductive pollution.
•Relative humidity: <80%
•Altitude: <2000m
•Temperature: 0 to 40°C (32 to 104°F)
Storage
Environment
•Location: Indoor
•Relative humidity: <70%
•Temperature: -10 to 70°C (14 to 158°F)
Fuse Type Model
72-2685/72-2705
72-2690/72-2710
72-2695/72-2715
72-2700/72-2720
110/120V
T4A/250V
T5A/250V
T5A/250V
T5A/250V
220/230V
T2A/250V
T3A/250V
T3A/250V
T3A/250V
•To ensure fire protection, replace the fuse only with the specified type and
rating.
•Disconnect the power cord before fuse replacement.
•Make sure the cause of the fuse blowout is fixed before fuse replacement.
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72-2690
Front Panel
Voltage and Current Adjustment Knob Operation
There are two adjustment modes for the voltage and current levels - Mode 1
and Mode 2. Mode 1: before setting, push the knobs to adjust the voltage and
current levels. Mode 2: adjust directly, there is no need to push the knobs.
These two modes can be shifted by pushing the voltage adjustment knob and
the current adjustment knob at the same time and holding for two seconds.
3. VSET <X>: <NR2
Description: Sets the output voltage.
Example: VSET1:20.50.
Sets the CH1 voltage to 20.50V.
4. VSET <X>?
Description: Returns the output voltage setting.
Example VSET1?
Returns the CH1 voltage setting.
5. IOUT<X>?
Description: Returns the actual output current.
Example IOUT1?
Returns the CH1 output current.
6. VOUT <X>?
Description: Returns the actual output voltage.
Example VOUT1?
Returns the CH1 output voltage.
7. OUT<Boolean>
Description: Turns on or off the output.
Boolean: 0 OFF, 1 ON.
Example: OUT1 turns on the output.
8. STATUS?
Description: Returns the POWER SUPPLY status.
Contents 8 bits in the following format:
Bit Item Description
0 CH1 0=CC mode, 1=CV mode
1,2,3,4,5 N/A
6 Output 0=Of, 1=On
7 N/AN/A
9. *IDN?
Description: Returns the 72-2685 identification.
Example: *IDN?
10. RCL<NR1>
Description: Recalls a panel setting.
NR1 - 5: Memory number 1 to 5.
Example: RCL1 recalls the panel setting stored in memory number 1.
11. SAV<NR1>
Description: Stores the panel setting.
NR1 - 5: Memory number 1 to 5
Example: SAV1 stores the panel setting in memory number 1.
12. OCP<NR1>
Description: Over current.
Example: OCP1 OCP OPEN.
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1. Displays the setup value of the output current.
2. Voltmeter displays the setup value of the output voltage.
3. Constant current mode.
4. Constant voltage mode
5. Over current protection active.
6. Panel LOCK indicator.
7. Adjustment knob for current.
8. Adjustment knob for voltage.
9. Power ON/OFF button.
10. Output terminals.

2
3
5
2
3
5
72-2 69 0
On / Off
main power
72-2690 DC P WE R SUPPLY 30 V5 A
REMOTE CONTROL
COM setting: Set up the COM port inside the PC according to the following
list:
•Baud rate: 9600
•Parity bit: None
•Data bit: 8
•Stop bit: 1
•Data flow control: None
RS232 Interface Definition
PC
Functionality
check
Run this query command via the terminal application such
as Multi-threaded TTY.
*DIN?
This should return the identification information:
Manufacturer, model name, software version.
TENMA 72-2705 Vx.xx
KD Series Remote Control Syntax V2.0
Command format: VSET<X>:<NR2> Command Details
1. VSET: Command header
2. X:Output channel
3. Separator
4. NR2: Parameter
1. ISET<X>:<NR2>
Description: Sets the output current
Example: ISET1:2.225
Response time: 50ms
Sets the CH1 output current to 2.225A
2. ISET <X>?
Description: Returns the output current setting
Example: ISET1?
Returns the CH1 output current setting.
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Mode 1
Voltage adjustment knob: Push
the voltage adjustment knob and
then one of the voltage indicators
will light up, meaning the voltage
output can be changed by
adjusting the knob.
Meanwhile the rotation can be
changed by pushing the voltage
knob.
Current adjustment knob: Push
the current adjustment knob and
then one of the current digit
indicators will light up, meaning the
current output can be changed by
adjusting the knob.
Push the knob again to light up
another indicator, which changed
the resolution of the knob rotation.
Power switch and output terminals
Current
resolution digit
Voltage
resolution digit
Mode 2
In Mode 2, rotate the adjustment knobs to adjust the voltage and current values.
The default adjusting resolution of the voltage initial settings is 1V while that of
the current is 100mA. The voltage and current adjusting resolution can be
changed by pushing the knobs.
72-2705 / 2710 / 2715 / 2720 DC Power Supply

FNSZ1057-00-00
S/N NO:011062300000000-0000
TO AVO ID EL ECT RI C SHO CK , THE P OWE R COR D PR OTE CTI VE
GRO UN DIN G CON DU CTO R MUS T BE CO NN ECT ED TO G ROU ND.
WARNI NG
DO NO T REMOV E COVER S; REFE R
SER VIC IN G TO QUALIF IED PE RSO NNE L.
FOR CON TIN UE D FIR E PR OTE CT ION , REPLA CE FU SE
WITH 25 0V FU SE O F THE S PE CIF IE D TYP E AND R ATIN G.
NO OPER ATIO N SERVI CEA BLE COM PON EN TS IN SI DE
FUS E RATIN G: 2A / 250V
VOLTAG E RATIN G: AC 220V
Operation of LOCK Function
Press and hold for three seconds to lock
the front panel and then press again and
hold for 3 seconds to unlock.
Operation of Over Current Protection
Press and hold for three seconds to start
OCP mode, where the output will be cut
off when the output current reaches the
set value. In the OCP mode, press the
knob to recover the output.
Rear Panel & Dimension Figure
Current
resolution digit
Voltage
resolution digit
Fan
Label on voltage & fuse
Power socket
Function
164mm
271mm
56
Specifications
Note: The specifications below are tested under temperatures ranging from
-5°C to 25°C and having been warmed up for 20 minutes.
Models
Voltage
Current
Load Regulation
Voltage
Current
72-2685/72-2705 72-2960/72-2710 72-2695/72-2715 72-2700/72-2720
0-30V
0-3A
0-30V
0-5A
0-60V
0-2A
0-60V
0-3A
Line Regulation
Voltage
Current
Setup Resolution
Voltage
Current
Setup Accuracy (-5°C to 25°C)
≤0.01%+2mV
≤0.1%+5mA
≤0.01%+2mV
≤0.1%+5mA
≤0.01%+2mV
≤0.1%+5mA
≤0.01%+2mV
≤0.1%+5mA
≤0.01%+3mV
≤0.1%+3mA
≤0.01%+3mV
≤0.1%+3mA
≤0.01%+3mV
≤0.1%+3mA
≤0.01%+3mV
≤0.1%+3mA
10mV
1mA
10mV
1mA
10mV
1mA
10mV
1mA
Voltage
Current
Ripple (20-20m)
Voltage
Current
Temperature Coefficient
Voltage
Current
Read Back Resolution
Voltage
Current
Read Back Temperature Coefficient
Voltage
Current
≤0.5%+20mV
≤0.5%+5mA
≤0.5%+20mV
≤0.5%+10mA
≤0.5%+30mV
≤0.5%+5mA
≤0.5%+30mV
≤0.5%+5mA
≤1mVrms
≤3mArms
≤2mVrms
≤3mArms
≤1mVrms
≤3mArms
≤1mVrms
≤3mArms
≤150ppm
≤150ppm
≤150ppm
≤150ppm
≤150ppm
≤150ppm
≤150ppm
≤150ppm
10mV
1mA
10mV
1mA
10mV
1mA
10mV
1mA
≤150ppm
≤150ppm
≤150ppm
≤150ppm
≤150ppm
≤150ppm
≤150ppm
≤150ppm
Interfaces
Accessories
Weight & Dimensions (WxHxD)
USB RS232, for models 72-2705, 72-2710, 72-2715 & 72-2720
User manual x1, power cord x1, USB cable (72-2705, 72-2710, 72-2715, 72-2720)
72-2685, 72-2690, 72-2695, 72-2700: 110x156x260mm
72-2685: 4kg, 72-2690: 4.8kg