Key facts
- Manuals
- 4
- Languages
- ZH
- Last added
- 2012-06-08
Featured Shenzhen manuals

Kedida CT-7011 Digital Thermostat User Manual
The CT-7011 is a micro‑computer‑controlled digital thermostat designed for residential, office, classroom, workshop and shop heating applications such as electric‑film, fuel, gas boilers, electric cable and floor heating. The manual describes the front‑panel layout, including temperature display, adjustment keys, mode indicators and power switch.
It explains how to set temperature values, select heating or cooling mode, install the unit in a wall box, and connect the load, power supply and temperature probe. Safety notes warn that the device operates on 220 V AC and must be installed with proper precautions. This manual is written in Chinese.
Covers: Panel Introduction · Technical Parameters · Function Introduction · Temperature Setting · Working Mode Selection · Installation Method

Huayi MAS830L Digital Multimeter User Manual
This manual introduces the MAS830L handheld 3½‑digit digital multimeter, describing its LCD display, backlight, and function/range selector. It explains how to connect test leads, select measurement modes, and interpret the display.
Safety information, maintenance procedures, battery and fuse replacement, and detailed measurement tables for voltage, current, resistance, diode, continuity, and transistor tests are provided, along with the instrument's technical specifications and accessories. This manual is written in Chinese.
Covers: Introduction · Safety Information · Technical Specifications · Measurement Functions · Battery and Fuse Replacement · Accessories

QIHAI Semi-Automatic Dispensing Machine User Manual
This manual describes the purpose, advantages and structure of the QIHAI semi‑automatic dispensing machine, which can handle a variety of adhesives and chemicals. It explains the main components, control switches, pressure adjustments and safety features.
The document guides users through power‑on procedures, mode selection, dispensing volume adjustment, and routine maintenance. Safety notes cover pressure limits, material handling and cleaning of the dispensing needle. This manual is written in Chinese.
Covers: Purpose and Advantages · Structure Description · Technical Specifications · Dispensing Volume Adjustment · Power On Procedure · Maintenance and Care
Latest Shenzhen manuals
SHENZHEN STATE MICROELECTRONICS SM4558 dual channel arithmetic amplifier handbook
SM4558 is a dual-channel operational amplifier that includes two independent, high-gain, internally frequency-compensated dual operational amplifiers. It is suitable for dual-supply mode operation and can also be used in a wide range of single-supply applications. It can be used as an active filter, compensation amplifier, audio preamplifier, equalizer amplifier and various linear amplifiers in electronic instruments and meters.
Kedida CT-7011 Digital Thermostat User Manual
User Manual 2 pages · 187 KB · ZHThe Kedida CT-7011 digital thermostat user manual provides panel overview, technical specifications, installation, wiring, and operation instructions.
Huayi MAS830L Digital Multimeter User Manual
User Manual 11 pages · 506 KB · ZHThe Huayi MAS830L digital multimeter manual provides safety guidelines, operation instructions, and technical specifications for accurate measurements.
QIHAI Semi-Automatic Dispensing Machine User Manual
User Manual 3 pages · 194 KB · ZHThe QIHAI semi-automatic dispensing machine user manual provides setup, operation, adjustment, and maintenance instructions.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Shenzhen manuals
What do the error codes E1 and E2 mean?
E1 (flashing) indicates the temperature sensor is disconnected; E2 (flashing) indicates the temperature sensor is short‑circuited.
What battery does the MAS830L use?
It uses a 9 V battery, either NEDA 1604 or 6F22.
How do I replace the fuse?
Replace it with a 200 mA/250 V fast‑blow fuse of the same specification.
What pressure limits must I observe for safe operation?
The input high‑pressure gas must not exceed 7 bar (100 psi), and the dispensing pressure must also stay below 7 bar.
How can I adjust the dispensing volume?
Use the DIP switch to select the timing program and set the desired drip time; the table on page 2 shows the corresponding settings for different volumes.
