Silverflo 937D-I Cordless Soldering Station User Manual

1. Introduction

This manual provides detailed instructions for the safe and efficient operation of your Silverflo 937D-I Cordless Soldering Station. This device is suitable for soldering and desoldering operations on a broad range of surface-mount and through-hole components such as SOP, DIP, and SOIC.

NOTE: This product does not include a battery. Please ensure you have a compatible 18-20V battery (DEWALT, Milwaukee, or MAKITA compatible depending on the model) before purchasing and using.

2. Important Safeguards & Warnings

CAUTION!!!

Always follow basic safety guidelines to reduce the risk of fire, electric shock, and injury.
This product is for indoor use only.
Do not expose to rain or moisture.
Use only with compatible 18-20V batteries.
Do not use the soldering iron near flammable gases or liquids.
Ensure proper ventilation when soldering.
The soldering iron tip can reach very high temperatures. Avoid direct contact with skin or other materials to prevent burns.
Always place the soldering iron in its holder when not in use.
Disconnect the power source (remove battery or unplug DC adapter) when not in use for an extended period or during maintenance.
Do not modify the soldering station or use it for purposes other than intended.
Keep out of reach of children.
Do not use metal files or excessive force on the soldering iron tip.
If the soldering iron tip deforms or rusts, replace it with a new tip.
If the sensor module is faulty or not connected, the display will show "S-E". Replace the heating element or ensure it is properly connected.
If the voltage is too low, the display will show "---" and the Low-battery Indicator will turn ON. Charge the battery promptly.
If the soldering station enters overheating protection mode, the display will show "P".

3. Part List

The package typically includes:

Soldering Iron
Temperature Adjustment Knob
Temperature Display
Low-battery Indicator
Tip Cleaner
DC Port (20V DC, 3.5A)
Master Power Switch

Image showing the Silverflo 937D-I2 package contents: host, soldering iron handle, and instructions. — Figure 1: Typical package contents for Silverflo 937D-I2 model.

4. Setup Instructions

4.1. Battery Installation/Removal

Slide and install the compatible 18-20V battery onto the main unit.
Press the battery lock to secure the battery in place.
To remove, press the battery lock and slide the battery off the main unit.

4.2. Powering the Soldering Station

The soldering station can be powered in two ways:

By Battery: Using a compatible 18-20V lithium battery.
By DC Port: Using a 20V DC/3.5A power adapter.

WARNING: These two charging methods should not be used at the same time, as it could be dangerous.

Diagram showing two power input options: a DC port for a 20V DC/3.5A adapter and a slot for a lithium battery. — Figure 2: Two ways of powering the soldering station (DC Port or Battery).

4.3. Initial Use Caution

Upon the first use, set the temperature to 250°C (482°F). Once the iron is hot enough to melt solder, coat the tip with a layer of rosin core solder. Then, adjust to your desired operating temperature.

5. Operating Instructions

5.1. Power On/Off

Place the soldering iron into its holder.
Turn ON the soldering station's master power switch.
The heating element will begin heating, and the operation indicator light will turn ON.
The operation indicator light will stay constantly ON when heating, blink rapidly when the temperature is stabilized, and turn OFF when cooling.
Begin operation once the indicator light blinks rapidly, signifying temperature stabilization.

5.2. Temperature Adjustment

Use the Temperature Adjustment Knob to set the desired temperature. The temperature range is 200-450°C (392-842°F).

Image showing the temperature adjustment knob and the digital display, indicating C/F mode, sleep mode, and standby mode settings. — Figure 3: One key to set different functions, including C/F temperature mode, sleep mode, and standby mode.

5.3. Fahrenheit/Celsius Conversion

To switch between Celsius (°C) and Fahrenheit (°F):

Press and hold the temperature adjustment knob for approximately 2 seconds.
Turn the temperature adjustment knob to select the desired display mode (C or F).
Press the temperature adjustment knob to confirm the selection.

5.4. Sleep Mode and Stand-by Mode

These modes protect user security, increase battery life, and extend the heating element life.

Press and hold the temperature adjustment knob for approximately 2 seconds.
Turn the temperature adjustment knob to select the sleep mode timer duration (1-8 minutes).
Press the temperature adjustment knob to confirm the sleep mode timer setting and enter the stand-by timer configuration interface.
Turn the temperature adjustment knob to set the stand-by timer duration (1-8 minutes).
Press the temperature adjustment knob to confirm the setting and exit the setting interface.

To wake the station from sleep mode, gently shake the soldering iron. To wake from stand-by mode, turn the temperature adjustment knob.

Video: Demonstration of the Silverflo 937D-I Cordless Portable Solder Iron Station, including features like temperature adjustment, sleep mode, and standby mode.

6. Maintenance & Precautions

6.1. Soldering Tip Care

Cleaning Oxidation: If a layer of oxidation forms on the tip, clean it using a damped sponge or metal wool ball. Set the temperature to 300°C (572°F), gently rub the tip in the metal wool ball, and apply solder until the tip is completely coated.
Avoid Metal Files: Do not use metal files to remove oxidation. If the tip is severely oxidized or deformed, replace it.
Avoid Excessive Force: Do not apply excessive force when soldering, as this can damage the tip.
Post-Operation Care: After high-temperature operation, adjust the temperature to 250°C (482°F) or below for idling. Failure to do so can accelerate aging of the heating element and shorten its lifespan.
Regular Tinning: After every operation, clean the soldering iron tip and tin it with a new layer of solder to prevent oxidation.

7. Troubleshooting Guide

Display Message	Problem	Solution
"S-E"	Soldering station's sensor module is faulty or heating element is not connected.	Replace the heating element (which includes the sensor module) or ensure the heating element is properly connected.
"---" (and Low-battery Indicator ON)	Voltage is too low to power the soldering iron.	Charge the battery promptly.
"P"	Soldering station is in overheating protection mode.	Allow the unit to cool down. Ensure proper ventilation and operating conditions.
"SLP" (and iron not heating)	The soldering station is in sleep mode.	Shake the soldering iron to wake it from sleep mode.

8. Specifications

Feature	Specification
Model Number	937D I1 / 937D I2 / 937D I3
Rated Voltage	20V DC (Compatible with 18-20V battery)
Rated Power	40W
Control Unit Dimensions	L155W85H97mm ±5mm
Operating Ambient Temp.	0~40°C / 32°F~104°F
Temperature Range	200-450°C / 392-842°F
Display	LED Nixie

Image showing the three models (937D I1, 937D I2, 937D I3) and a table of their specifications. — Figure 4: Overview of Silverflo 937D-I models and their specifications.

Image showing the dimensions of the control unit: 155mm length, 85mm width, 97mm height, and a weight of approximately 303g. — Figure 5: Control unit dimensions and weight.

9. User Tips

The soldering station heats up very quickly, allowing for efficient work.
It is practical and easy to use, making it suitable for various soldering tasks.
If the unit displays "SLP" and is not heating, it is likely in sleep mode. Simply shake the soldering iron to reactivate it.
The DC power supply connector is a common barrel jack type, often 5.5 x 2.5 mm, but verify with your specific adapter.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.

You can also refer to the official user manual PDF for additional details: Silverflo 937D-I User Manual (PDF)

Silverflo 937D-I