4th Newsletter from Howard Electronic Instruments, Inc. 
July, 2001

 

In this newsletter:

* XYTRONIC 137 ESD ELECTRONIC TEMP. CONTROLLED SOLDERING STATION
* Capacitor Wizard (In Circut ESR Meter) 
* Protec 506 (Digital Multimeter)
* Tips for Tips for the Xytronic's 988,968
* 60 day 100% Total Satisfaction Guarantee

AUTO-TEMP 137ESD ELECTRONIC TEMPERATURE CONTROLLED SOLDERING STATION            Sale Price: $115.00

Auto-temp 137ESD temperature controlled soldering station was developed to meet the present and future needs of the electronic production industry, service technician and the hobbyist. The detachable soldering iron is engineered with a highly insulated ceramic heating element, incorporating a state of the art P.T.C. sensor to insure accurate temperature   performance. Auto-Temp 137ESD is constructed of high quality materials, workmanship and 
incorporate the following features:

The Auto-Temp 137ESD provides an "Easy to Read" Digital temperature indicator, 
a detachable 60W solder wand complete with tip, and a "Set and Forget" 
temperature control that allows a precision accuracy "On Demand" heat setting 
range of between 200 °C and 480 °C (392°F to 896°F).

137ESD exceeds all soldering equipment military specifications regarding 
electro static sensitive devices for critical applications where unwanted 
static discharges may damage components.

Precision "Tip Temperature" Accuracy is mastered to within ± 3°C(6°F) utilizing 
state of the art circuit technology and a built in P.T.C. sensor, located at the 
end of each ceramic heater shaft for accurate temperature control.

The power unit is isolated from the A.C. line by a high quality transformer and 
only 24 Vac voltage is used to drive the heating element. The tough plastic PC 
housing is stronger to better withstand high impact bumps and abrasions. All 
materials meet UL standards.

Auto-Temp soldering stations are constructed with a lock-out feature to allow 
supervisors the ability to set and lock the stations at a specific temperature. 
This is accomplished with a special size allen head screw located on the front 
of the panel.

Incorporates a long life Japanese made ceramic heating element with fast heat-up, 
fast recovery and exacting temperature control with minimal overshoot. Heat-up 
time to working temperature is attained in about 45 seconds.

"Zero Voltage" switching and fully grounded design meets military application 
standards for protection of electro-sensitive devices against line transience 
and voltage spikes. Tip leakage is less than 0.4 millivolts or 0.5 ohm resistance.

http://www.howardelectronics.com/xytronic/137ESD.html    
                               

                            
                                                      

Sale Price $159.95

The Capacitor Wizard is an extremely FAST and RELIABLE device designed 
to measure ESR (Equivalent Series Resistance) on capacitors of 1uf and 
larger "IN CIRCUIT" eliminating the need to remove the capacitor for 
accurate tests. The Capacitor Wizard finds BAD caps IN CIRCUIT that 
even VERY EXPENSIVE cap checkers MISS ENTIRELY, even out of the circuit!! 

Why measure ESR? A capacitors physical construction dictates that most 
capacitor failure modes will adversely affect a capacitors ESR. When a 
capacitor fails ESR goes up to as high as infinity, depending upon the 
particular failure mode. An open cap measures infinity. Slight dielectric 
changes cause ESR to go up by several ohms. Standard capacitor meters cannot 
detect any change in ESR therefore they miss bad capacitors leading to time 
consuming "Tough Dog" repairs. A good percentage of your capacitor troubles 
are caused by an increase in ESR! The Capacitor Wizard won't be fooled!!

The Capacitor Wizards method of measurement is based on sound BASIC ELECTRONICS. 
It is an AC Ohm Meter with its Frequency, Waveform and Measurement Point 
carefully chosen to maximize its ability to measure low values of ESR 
(Equivalent Series Resistance) on capacitors of 1uf and up. If a capacitor 
opens up the Capacitor Wizard measures infinity indicating a drastically 
bad capacitor. If a capacitor changes value slightly the ESR goes up 
indicating a bad capacitor. In switching and high current applications 
(TV Horiz / Vert, Switching Power Supplies, Motor Start and Run Caps) 
the difference between 0.2 ohms ESR and 2 ohms ESR is very significant! 

Many occupations can benefit from using the Capacitor Wizard: TV Repair, 
Printer Repair, Swiching Power Supply Repair, Computer Monitor Repair, 
Air Conditioning and Refrigeration, Medical Electronics, Electric Motor 
Repair to name a few.

http://www.howardelectronics.com/ieinc/cwinfo.htm

Protec 506 Digital Multimeter    Sale Price: $149.95

Dual display for frequency, AC voltage and Temperature measurements 
10 MHz frequency counter and decibel measurement. 
True RMS AC voltage and current readings 
RS-232 interface and software for downloading measurements to a PC (model 506 only) 
10 memory locations and analog bar graph 
Time and Stop watch mode with Alarm 
Min., Max., Avg. and Relative mode 
Capacitance and Inductance measurement 
Temperature measurement in Centigrade and Fahrenheit 
Frequency generator, logic probe function and back light 
Auto power off and "keep on" modes 

http://www.howardelectronics.com/protek/506.html

Tips for Tips for the Xytronic's 988, 968