YIHUA 303D DC Power Supply
Feature
303D communication maintenance power supply is a single line output of stabilized high accuracy
DC stabilized power supply. The output voltage and current can be adjusted continuously within the
rated range. The load current has MA conversion with two settings: 0-3A and 0-99 mA. Constant
voltage and constant current (CV/CC), automatic switching of working modes. Double digital display
shows output voltage and current independently. Several protection functions include current
limitation, voltage reduction, short circuit protection, over-temperature protection, etc. The design
is applied to production line of the plant, maintenance, laboratories and is also a necessary device
for the communication industry.
₨7,586 ₨10,529
Principle description of constant voltage/constant current CV/CC
The operation mode of constant voltage/constant current can be automatically switched depending
on the comparison result of the load current and limited current value.
- a) Constant voltage CV
When the existing current value is smaller than the set output limit current value, the power supply
is working under the constant voltage mode. The CV indicator light on the front panel is on, the
output voltage is controlled and it will be the same as the set value. Current changes with the load.
- b) Constant current mode (CC)
When the current value exceeds the limit value of the output current, the equipment will work in
the CC mode. The CC indicator light on the front panel is on, the output current value is controlled
to the set value. Since the limited output power cannot be overloaded, the output voltage can be
lower than the set value. When the output current is lower than the set value, the equipment will
automatically change to CC mode.
| Weight | 4 kg |
|---|---|
| Dimensions | 25 × 13 × 15 cm |
Machine parameters
| Parameters | |
| rated voltage | AC220V 50Hz |
| Power of complete machine | 140W |
| Operating environment | 0～40℃ relative humidity ＜80％ |
| Storage Temperature | －20～80℃ relative humidity ＜80％ |
| Dimensions of the machine body | 255*130*150mm |
| weight | 4.3KG |
| Performance parameters | |
| output voltage | Adjustable continuously within 0～30V |
| output current | Adjustable continuously within 0～3A/0-99mA
(current limitation adjustment when above 0.2A) |
| output power | 90W |
| Source effect | 1mV |
| load effect | ≤0.33% |
| Ripple noise | ≤3mVrms（5Hz ~ 1MHz）/≤3mArms |
| Display accuracy | 0.1V/0.1A/1mA |
| Protection mode | Over current, short circuit, over temperature protection |
| Dissipation mode | air cooling |
Brand
YIHUA
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Clamp Meters
AC/DC DIGITAL CLAMP METER KEW 2056R
• Designed to meet international safety standard IEC 61010-1 CAT IV 600V.
• CAT IV Clamp Meters can measure the Voltage and Current in both every low and high power circuits.
• Very useful for power distribution companies, power utilities and maintenance fields.
• True RMS enables an accurate measurement.SKU: n/a -
Digital Multi Meter
ET 8133 DMM
Product description
3 times/second
Diode: YES
Capacitance: YES
True RMS: YES
Data hold: YES
Backlight: YES
Flashlight: YES
Auto power off: YES (no measurement operation within 15 minutes)
Low battery indication: YES
Environment temperature: 0~40℃, humidity ＜75%
Storage environment: -20~60℃, humidity ＜80%
DC voltage:
Range: 200mV/2.000V/20.00V/200.0V/600V
Resolution: 0.0001V/0.001V/0.01V/0.1V/1V
Accuracy: ±(0.5%+3)
Max.: 600V
AC voltage:
Range: 2.000V/20.00V/200.0V/600V
Resolution: 0.001V/0.01V/0.1V/1V
Accuracy: ±(1.0%+3)
Max.: 600V
Capacitance:
Range: 20.00nF/200.0nF/2.000F/200.0F
Resolution: 0.01nF/0.1nF/10nF/100nF
Accuracy: ±5%+3
Max.: 200μF
AC current:
Range: 20mA/200mA, 2A, 10A
Resolution: 0.1mA/0.001A/0.01A
Accuracy:
20mA/200mA/2A: ±(1.0%+3)
10A: ±(1.5%+3)
Max.:
20mA/200mA: 200mA
2A/10A: 10A
DC current:
Range: 20mA/200mA, 2A, 10A
Resolution: 0.1mA/0.001A/0.01A
Accuracy:
20mA/200mA: ±(2.0%+4)
2A: ±(1.0%+5)
10A: ±(2.0%+3)
Max.:
20mA/200mA: 200mA
2A/10A: 10A
Resistance:
Range: 2.000KΩ/20.00KΩ/200.0KΩ/2.000MΩ/20.00MΩ
Resolution: 0.001KΩ/0.01KΩ/0.1KΩ/0.001MΩ/0.01MΩ
Accuracy:
2.000KΩ: ±(1.5%+3)
20.00KΩ: ±(0.5%+3）
200.0KΩ: ±(0.5%+3)
2.000MΩ: ±(1.0%+3)
20.00MΩ: ±(1.5%+3)
Max.: 20MΩ
Continuity: YES
NCV: YES
Frequency response in AC mode: 40Hz~1KHz
LCD size: 45 * 25mm / 1.8 * 1.0in
Item size: 124 * 65 * 26mm / 4.9 * 2.6 * 1.0in
Item weight: 210g / 7.4ounce
Package size: 140 * 100 * 40mm / 5.5 * 3.9 * 1.6in
Package weight: 220g / 7.8ounceSKU: n/a -
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Clamp Meters
CLAMP METER AC BM 2000B
SPECIFICATIONS:
– Maximum display: 1999
– Method indication: LCD
– Maximum arm span: 60mm
– Operating temperature range:
work: 0C – 40C
Storage:-10C – 60C
– Power supply: 9V battery
– Low battery indication: YES, graphic symbol
– Audible indication: YES, piezoelectric transducer
– Dimensions: 270x100x45 mm
– Weight: about 610g (with battery)Features
– Measuring voltage: 0-1000V 2 range
– Measurement of AC voltage: 0-700V in 1 range
– Measurement of alternating current: 200A-2000A in 2 ranges
– Measuring current: 200A-2000A in 2 ranges
– Measurement of resistance: 2k in 1 range
– Measuring capacity: NO
– Frequency: NO
– Temperature measurement: NO
– Testing LEDs: YES
– Acoustic continuity tester: YES
– Distance between arms: 6cm
– Meter dimensions: 270x100x45 mm
– Weight: 610g with battery
– Basic accuracy: ± (0.5% +2 digits)Packages Include:
1 × Clamp-On Meter BM-2000B
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SKU: n/a
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- 4-digit high precision display
- OVP OCP OTP protection
- Output setting viewable
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TITAN TN 305DS DC Power Supply
Operating Conditions
Supply power: AC 220-240V, 50Hz/60Hz.
Working Temperature: -10°C ~ 40 °C
Relative Humidity: ‹ 90%
Storage Conditions: -10°C ~ 40 °C
Relative Humidity: ‹ 80%
Stable Voltage
The output voltage is between 0 and nominal value continuously adjustable
Voltage Stability: ≤0.01% +2mV
Load Stability: ≤ 0.01% +2mV
Recovery Time: ≤100µS
Temperature Coefficient: ≤ 200PPM/°C
Ripple Noise: ≤1 MVRMS(RMS)
Stable CurrentPower Stability: 0.1% + 3mA
Load Stability: 0.2% + 3mA
Ripple Noise : ≤2mArms(RMS)
The output current is between 0 and nominal value continuously adjustable
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