SRA SRA-250 User manual
SRA-250 Hydrogen Torch
OWNER’S MANUAL
|
SRA Shops
24 Walpole Park South, Suite #10, Walpole, MA 02081
1-800-545-4570 1-508-668-6044
www.sra-shops.com [email protected]
Machine Model:
Serial Number:
Year of Manufacture:
Date of Delivery:
3SRA-250 Hydrogen Torch Table Of Contents
Table of Contents
Overview...........................................................................................................5
Features.....................................................................................................5
Package Contents.......................................................................................5
Common Applications.................................................................................5
Getting to know the SRA-250..........................................................................6
Critical Operation Notes..................................................................................8
Precautionary Statements...........................................................................8
Safety Guidelines........................................................................................8
Using Your Hydrogen Torch...........................................................................9
Filling the Booster Tank..............................................................................9
Filling the Electrolyte Tank........................................................................10
Attaching the Torch Hose .........................................................................11
Choosing a Burner Tip..............................................................................11
Lighting the Torch.....................................................................................12
Shutdown Procedure................................................................................13
Routine Maintenance....................................................................................14
Daily Procedures......................................................................................15
Weekly Procedures...................................................................................15
Half-Annual Procedures............................................................................16
Yearly Procedures....................................................................................16
Notices.............................................................................................................17
Warranty..................................................................................................17
Shipping...................................................................................................17
Storage.....................................................................................................17
Maintenance.............................................................................................17
SRA Repair Services..................................................................................17
Disposal of Electrolyte...............................................................................17
Disposal of Booster Flux...........................................................................17
4SRA-250 Hydrogen Torch Table of Contents - Continued
Troubleshooting.............................................................................................18
No Power to Unit .....................................................................................18
Erratic Sensor Lights.................................................................................18
Little to no gas out of torch (Includes Weak Flame).....................................19
ReplacementParts.........................................................................................20
Exploded View Diagram............................................................................20
Numbered Parts List ................................................................................21
Block Diagrams..............................................................................................22
GasCircuit................................................................................................22
Wiring Diagram........................................................................................23
De-Oxidizer Chart..........................................................................................24
Technical Support..........................................................................................25
SRA Resource Center................................................................................25
SRA Solder Lab - YouTube Channel............................................................25
Contact SRA Solder Tech Support..............................................................25
5SRA-250 Hydrogen Torch Overview
Features:
•
• Uses hypodermic needle as the torch tip
• Burns hot up to 6,000°F depending on booster used
• Breaks down distilled water for fuel
•
• No dangerous gas tanks and costly gas lines
• Economical and easy to use
• Works with any metal
• Perfect for space-constrained areas
• Electronic indicator lights for distilled water level
• Electrolyte only needs to be changed once a year
•
• Includes everything you need to get started
• 1-Year Limited Warranty
Package Contents:
• SRA-250 Unit
• Booster Tank
• 1 Torch with 4-ft hose
• Power Cable
• Electrolyte Solution - C (Premixed or Pellet form)
• SRA Booster Flux (Cannot be shipped by air)
• Large Yellow Funnel (For Electrolyte)
• Small Clear Funnel (For Booster Flux)
• Set of Tips (25 in 5 sizes)
• Owner’s Manual
Common Applications:
OVERVIEW
• Glass Processing
• Brazing
• Transformer Soldering
• Wire to Wire
• Thermocouples
• Quartz
• Electronic Boards
• Dental Appliances
• Jewelry
• Medical Devices
• Wax Castings
• Electromechanical Devices
6SRA-250 Hydrogen Torch Getting to Know the SRA-250
GETTING TO KNOW THE SRA-250
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Burner Tips (5 Sizes)
Power Indicator LED
Check Valve Cap
Torch Stand (Sold Separately)
Torch Hose
Torch Hose 1/8” Fitting
Booster Block Hose Fitting 1/8”
Booster Tank Funnel (Clear)
Electrolyte Tank Funnel (Yellow)
Carrying Handle
3-Position Switch
Safety Cap
Electrolyte Tank Inlet
Power Control Knob
MINIMUM LED
MAXIMUM LED
Booster Tank
Booster Knob
Booster Block w/ 1/8” Fitting
Torch
7SRA-250 Hydrogen Torch
SPECIFICATIONS
11.6”
(29.5 cm)
2.6”
(6.6 cm)
11.2”
(28.4 cm)
6.7”
(17 cm)
8.5”
(21.6 cm)
Model
Input Voltage
Max Power
Dimensions
Weight
H2/O2 Gas Production
Electrolyte Consumption
Alcohol Consumption
Booster Tank Capacity
SRA-250 (Single Torch Unit)
110V AC / 60 Hz (220V Available)
280 Watts
11 (w) x 9.6 (d) x 11 (h) Inches
31 Lbs (14 Kg)
45 Lt/h
22 cc/h
9 cc/h
153 cc
8SRA-250 Hydrogen Torch Critical Operation Notes
Before setting up, operating, or maintaining this machine, please read the entire
contents of this manual carefully. Make sure you understand the safety rules and
hazards found throughout.
bodily harm if the operator does not follow the recommend safety rules.
Keep the machine and its accessories far away from children.
PRECAUTIONARY STATEMENTS
• NEVER
• NEVER
• NEVER
on with the power level lowered when removing tips.
• NEVER
the tip of the torch. Give the 250 a few minutes to warm up.
• NEVER turn on the machine on when the booster tank is EMPTY.
• NEVER leave machine on while torch is not lit.
• NEVER allow gas to enter the environment for more than 15-20 mins. It is best
• NEVER
• NEVER
Safety Guidelines
9SRA-250 Hydrogen Torch Filling the Booster Tank
The SRA-250 is shipped with all tanks empty for safety compliance. A separately
shipped box contains the electrolyte solution.
Filling the Booster Tank:
Please note: the booster tank is wrapped separately from the machine to avoid
damage in shipping. When shipped by ground, this unit comes with a pint of SRA
Booster Flux, which is a premixed de-oxidizing solution of methyl-alcohol and boric
-
dizing solution in the booster tank. Please refer to page 24 for more information.
1. Locate booster tank and remove all
the protective packaging.
2. Carefully pour the booster solution
into the outer section of the booster
tank using the clear funnel provided.
DO NOT GET FLUID IN CENTER.
3. Screw the booster tank back in place
using the booster knob. To prevent
cross-threading, turn the booster
knob backwards until you feel the
threads catch on the booster tank.
Once engaged, hand-tighten.
4.
tank every 4 hours of running time.
Never run the machine without the
correct amount of methanol in the
booster tank. Empty the booster tank
every 12-16 hours of running time.
Wash the tank in hot water and dry
solution.
USING YOUR HYDROGEN TORCH
10SRA-250 Hydrogen Torch Filling the Water Tank
1. Check that the 3-position switch is in
the center “OFF” position and connect
the power cable to the appropriate
110V or 220V electrical outlet.
2.
denoted by an equals sign (=). The
green LED will light indicating power is
present and the yellow MINIMUM LED
will light indicating the water tank level
is low.
3. Locate and unscrew the chrome
Safety Cap by turning counter-
clockwise.
4. Insert the yellow funnel provided into
the tank opening. Watch the min/
max indicator lights and start pour-
ing the Electrolyte solution into the
water tank. When the MINIMUM light
soon as the RED light comes on.
5. Screw the Safety Cap back on and
hand-tighten. Flip the 3-position
switch to the center “OFF” position
and set the power control knob to the
zero position for safety.
Filling the Electrolyte Tank
CAUTION: Be careful not to spill the Electrolyte as it is very corrosive. Avoid contact
with eyes and skin. If in contact with skin, wash immediately with water to avoid
caustic burns. If spilled, solution can be neutralized with vinegar.
11SRA-250 Hydrogen Torch Connecting the Torch
Attaching the Torch Hose
1. On the left side of the booster block
-
2. Take one end of the torch hose and
insert it through the hose nut. Then
push the hose up onto the stem of the
3. -
-
press the hose, creating a tight seal
for the hydrogen gas.
Choosing Your Burner Tip
based on your process and the intended
application. Please review the chart be-
low to select the proper size tip for the
by pressing onto the torch nozzle.
#25
#23
#22
#21
#20
0.010
0.013
0.016
0.020
0.023
Red
Orange
Blue
Purple
Pink
5-6
6-8
8-9
8-10
9-10
Gauge I.D. (Inches) Color Power Control
12SRA-250 Hydrogen Torch Lighting the Torch
Lighting the Torch
1. Turn the machine on by pushing the
three-position switch to the ON posi-
tion (-), at this time you will hear the
internal fan turn on.
2. Turn the power control knob to the
corresponding setting from the tip
chart on page 11.
3. Wait at least 1 minute and/or until
of the torch and hear gas bubbling in
the booster tank. When this occurs,
you can light the torch. SEE CAUTION
BELOW.
4. Light the torch using either a pressure
activated striker or lighter. If more gas
is required, turn the power control to
a higher position. Conversely, if less
gas is required, turn it to a lower po-
sition. Use the lower position for tips
CAUTION: Remember to never light the torch until you can feel gas coming from
machine can remain on when removing tips. Do not let hydrogen gas from the
torch enter the environment for more than 15-20 minutes.
TIP
13SRA-250 Hydrogen Torch Shut Down Procedure
Shut Down Procedure
1.
down the power control knob before
-
to crawl backward through the hose.
handle and quickly push and hold the
stem (where the tubing connects) into
the handle.
2.
machine by turning the three-position
switch to the middle (0) position.
3. Always leave the tip open to allow gas
to escape and leave the tanks pressur-
ized when you’re done.
14SRA-250 Hydrogen Torch Routine Maintenance
Much like an automobile, your hydrogen torch requires routine check-ups along
Below is an overview of our recommended maintenance procedures.
Daily
Check condition of the needle tip
Weekly
Rinse out booster tank with hot distilled water
Every Six Months
Rinse out booster tank with hot distilled water
Replace the Booster Seal Gasket and
the Booster Handle O-ring.
Flush the Electrolyte tank and replace Electrolyte solution
Yearly
Replace the Check Valve
Check torch hose for holes and wear
Replace all gaskets and O-rings
Every 3-4 years
In this time, the machine should undergo a complete technical
and operational review. Such work should be performed by
skilled technical personnel at SRA.
For more info, see Notices section (Page 16) or contact us at
1-800-545-4570
ROUTINE MAINTENANCE
15SRA-250 Hydrogen Torch Routine Maintenance
Daily Procedures
Each day before starting work with your hydrogen torch and between every 8-hour
Once the booster tank is removed, it is safe to remove the Safety Cap so the water
tank may be replenished with distilled water.
position and observe the water level indicator lights:
When the red MAXIMUM light is on, DO NOT add more water.
CAUTION: STOP FILLING IMMEDIATELY WHEN THE RED MAX LIGHT COMES ON.
Adding too much water will cause water to accumulate in the gas output torch
Replace the Safety Cap and hand-tighten.
Empty the booster tank every 12-16 hours of running time. Wash the tank in hot
Weekly Procedures
Remove the booster tank and rinse out with hot water.
16SRA-250 Hydrogen Torch Routine Maintenance
Six Month Procedures
Remove the Booster Tank, the Booster Knob and the gaskets. Remove the Booster
Seal and carefully remove any and all encrustations in and around the hole and
around the groove underneath the Booster Block.
Replace the Booster Seal Gasket (Part #24) once all debris and encrustations are
removed from the Booster Block.
Check for encrustations throughout the Booster Tank and inside the hose and
torch. Do your best to remove them. Clean the tank by soaking it horizontally
Yearly Procedures
Valve keeps the gas pressure constant and also prevents the booster tank liquid
from contaminating the water tank.
Check the torch and hose - Do a physical check for any wear and tear of the hoses
and replace as needed.
Electrolyte solution will usually function for at least six months to one year. When
properly and thoroughly rinse the water tank with only distilled water until the
Inspect the Booster Seal for encrustations and wear.
17SRA-250 Hydrogen Torch Notices
1-YEAR LIMITED WARRANTY
of purchase; to be free from defects in materials and workmanship (but not against
damages caused by misuse, negligence, accident, and faulty installation or by using
materials incompatible with the equipment).
Shipping Information:
to avoid damage. Then empty the Electrolyte tank and be sure to hand-tighten the
Safety Cap. Ship the unit in its original box with “This End Up” stickers.
Storage Information:
If you will not be using the machine for a while it is a good idea to empty both the
Electrolyte and Booster tanks and rinse them with hot distilled water before storing.
Maintenance:
only. To reduce the risk of electric shock do not perform any servicing other than
that contained in the operating instructions. Never open the unit unless you are
SRA Repair Services:
or 1-508-668-6044 for current rates and to schedule service.
Disposal of Electrolyte:
Neutralize the Electrolyte to PH7 by adding hydrochloric acid (and small part of
albite in powder) and give disposition to an authorized company that handles toxic
waste material.
Disposal of Booster Flux:
over to a company specializing in the disposal of toxic products.
NOTICES
18SRA-250 Hydrogen Torch Troubleshooting
No power to unit
Sensor light is not
working
1.
2.
3.
4.
1.
2.
Blown fuse
Incorrect voltage
Faulty fan
Faulty/defective current
line, caused by damaged
part
Level circuit board has loose
connection or is defefctive
The max/min sensors may
be dirty or damaged
1.
2.
3.
4.
1.
2.
Replace the fuse and test.
If the fuse continues to blow, ensure unit is connected to the
correct voltage receptacle (110 or 220V).
Disconnect fan. If it runs without fuse blowing, then the fan motor
needs to be replaced.
This could be caused by one of the following parts being faulty and
should be serviced by a skilled SRA technician; RFI suppressor, level
circuit board, power control board, anodes, caustic tank or power
transformer.
a. Check to see if all connections into circuit board are intack.
b. Contact a skilled SRA technician to replace the circuit board.
a. Contact SRA technician to clean electrolyte tank and sensors.
b. Contact SRA technician to replace max/min sensor(s).
ISSUE CAUSE SOLUTION
19SRA-250 Hydrogen Torch Troubleshooting
Little or no gas flow 1.
2.
3.
Your electrolyte solution
may be low, weak, or empty
The check valve may be
malfuctioning
There could be a blockage
in the pathway
1.
2.
3.
Replace electrolyte solution as described on page 10.
Check the condition of the check valve. The spring may be vstuck
use a paperclip tip to free it up. Or it may be defective altogher and
need to be replaced.
a. Check the torch(s), hose(s). Remove the torch and hose and
carefully run compressed air through the hoseline and torch to see
if it is cleared of any blockage or debris.
b. The pathway in the booster block could be obscruded. You can
check the booster block pathway by using a bent paperclip to clear
any passage from the check valve cannel to the flame arrestor (350
only) to the blooster tank.
c. The booster seal may be crusty, worn out or have excesssive
debris buidup, replace the booster seal if nessary.
d. The flame arrestor (350) may be need to be replaced .
e. The pathway in the internal unit may be obstructed or leaking.
The hoses, separater tank, and hose locks level sensorsmay need
replacing or repair. Contact SRA for technical support.
f. In addition the electrolyte tank may have debris that needs to be
cleared and it should be serviced by a skilled SRA technicician.
ISSUE CAUSE SOLUTION
20SRA-250 Hydrogen Torch Exploded View
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