Guth laboratories 2100 User manual

Guth Laboratories, Inc.

MODEL 2100 SIMULATOR

OPERATION MANUAL

590 North 67th Street

Harrisburg, PA 17111-4511

TELEPHONE: 717-564-5470 / 800-233-2338

FAX: 717-564-2555

WEB SITE AT: www.guthlabs.com PRICE $5.00

RECORDS (SERIAL NUMBERS, CALIBRATION AND NOTES)

NIST TRACEABLE THERMOMETER – SERIAL NUMBER___________________

CERTIFIED BY________________________________DATE_____________

TEST TEMPERATURE_______qCNIST TRUE TEMPERATURE_______qC

MODEL 2100 – SERIAL NUMBER_________________________________

CALIBRATION CHECK DATE CHECKED BY

NOTE: Only a Guth Laboratories, Inc. certified technician shall perform Field

calibration.

INTRODUCTION

The Guth Model 2100 Alcohol Breath Simulator is a State-of-the-Art, electronically temperature

controlled, water-alcohol instrument for the purpose of providing a precise calibration standard.

Temperature of the water-alcohol solution placed in the simulator is maintained at 34oC + .05oC

or better.

The Guth Model 2100 Simulator is approved by the National Highway Traffic Safety

Administration (NHTSA), published on their Conforming Products List (CPL), and is listed with

Underwriters Laboratories, Inc. (UL), as meeting United States Safety Standards and Canadian

Safety Standards (CUL).

CERTIFIED* SIMULATOR SOLUTION STANDARD

PLEASE NOTE: It is imperative your Simulator Solution be of the highest quality in

order to acquire the scientific and legal standards of acceptance.

To establish a precise and accurate calibration standard when using a Guth simulator, GUTH

LABORATORIES, INC. recommends using Guth Certified Simulator Solution. Guth

Laboratories, Inc., a pioneer and leader in the science of alcohol breath testing, has provided

Certified Simulator Solution to state, municipal, and local law enforcement agencies for many

years.

************

Guth Premixed Certified Simulator Solution is the only solution available which is prepared by

aFDA /DEA Registered Laboratory.

************

Guth Certified Simulator Solutions are prepared in standard concentrations of .02%, .04%, .05%,

.08%, .10%, .15% and .20%. Other special concentrations are available. Please contact Guth

Laboratories, Inc. for availability and pricing:

Toll free: (800) 233-2338 Fax: (717) 564-2555

or visit our web site at: www.guthlabs.com

STORAGE: Store Simulator Solution in a cool location. Do not place solution in a freezer

–DO NOT REFRIGERATE SIMULATOR.

*Guth Certified Simulator Solutions are tested by recognized laboratories.

114

MODEL 2100 - BLOCK DIAGRAM

34.0

MULTIPLEXED

DISPLAY

DRIVER

TIMING

RESET

CPU DISPLAY SECTION

8051

MICRO

CONTROLLER

RS- 232

LEVEL

CONVERTER

CUSTOMER

INTERFACE

DATA OUT

DATA IN

MOTOR

HEATER

MOTOR

CONTROL

HEATER

CONTROL

BUFFERS

TRANSFORMER

POWER SUPPLY

+ 5vdc

TO ALL

CIRCUITS

I C BUS

A to D

CONVERTER

VOLTAGE

REFERENCE

4.096vdc

3 WIRE BUS

CALIBRATION

TEST

POINT

RFI

DETECT

HEATER

THERMOCOUPLE

HIGH TEMPERATURE SHUT-OFF

AMPLIFIER COMPARATOR

BEEPER LED

INSTRUMENT

AMPLIFIER

OUTPUT SECTION

INPUT

SECTION

PRECISION

THERMISTOR

EXCLUSIVE FEATURES OF THE MODEL 2100 SIMULATOR

xMICROPROCESSOR CONTROLLED: Mercury column is eliminated.

xTEMPERATURE SENSOR: The Model 2100

incorporates a high precision temperature sensor.

xMaintains a precise temperature of 34oC + .05oCor better.

xWill not heat if temperature sensor is defective (shorted or open).

xGUTH LABORATORY GLASS CONTAINER: Graduated 500ml + 5%.

xNON-MAGNETIC METAL TOP HOUSING ASSEMBLY: Provides uniform headspace

heating.

xPOWER SWITCH: Safety On/Off - Double pole, double throw (DPDT).

xELECTRICALLY ISOLATED: Internal power transformer and optically isolated control

components prevent AC leakage.

xFUSE: External fuse provides protection in the event of an electrical malfunction.

xHIGH INTENSITY LED DISPLAY: Provides maximum visibility of temperature and heater

activity.

xRELIABLE AGITATOR MOTOR.

xAGITATOR PADDLE: Designed by Guth Laboratories, Inc. Offers maximum circulation

and uniformity of solution.

xHEATER ELEMENT: Electronically protected from overheating when removed from

solution or when temperature sensor is defective.

xRFI PROTECTED: The heating element and motor will turn off when the simulator is

subjected to a RF field of 10 volts/meter or greater.

xINTERNAL DIAGNOSTICS: Simulator computer performs internal diagnostics.

xMALFUNCTION INDICATION: Simulator provides an audible and visual indication if a

malfunction occurs.

xPOWER : 120 volts AC 60 Hz.

xRS-232 COMMUNICATIONS: Provides the ability to monitor the temperature and status of

the simulator.

Y-

-I

N-

-G

13 2

REMEDY: Turn off the simulator and turn on. If the simulator does not heat, the heating

element may be defective. Requires service*

*REQUIRES SERVICE - Simulator must be repaired by a Guth

certified technician or returned to Guth Laboratories, Inc.

(Seeinstructions on page 9.)

The temperature of the solution is belo

33.8oCafter it has initially obtaine

34.0oC.

MO D EL 2100

OFF

RESET

GUTH LABORATORIES, INC.

.5 .5

G U TH MO DEL 2100 SIMULATOR

312

REMEDY: Turn the simulator off and allow solution to cool. Turn the simulator on. If the

condition continues to occur, simulator requires service*.

Remove the source of radio interference or change location of the simulator. Reset the simulator.

REMEDY:Turn “off” – wait 3-5 seconds, then turn “on”.

REMEDY: Reset the electronics. (Turn “off” for 3-5 seconds, then turn “on”.) If the simulator

does not heat, the heating element may be defective. Requires service*

The temperature of the solution is above

34.2qCor radio frequency interference

(RFI) has been detected.

Electronics need to be reset.

Excessive amount of time to obtai

operating temperature (longer than 15

minutes). The heating element may b

open or the solution was too cold.

MODEL 2100 REAR VI EW

CAU TI O N

REMOVE SOLUTION BEFORE

MOVING INSTRUMENT

REP LA CE FU SE W I TH BU SS TYP E G M W

1amp @ 125 vac Fast Acting

11 4

osolution in container or simulator powe

has been turned on with top housing no

attached to the container.

IF THE SIMULATOR DISPLAYS AN ERROR:

The Model 2100 provides internal diagnostics checking for several conditions which prevent the

simulator from maintaining the correct temperature. When a condition or malfunction occurs, the

simulator will deactivate the heater and the agitator motor. The simulator will alarm indicating a

malfunction and display the error code. This will continue until the malfunction is corrected or the

simulator is reset.

RESETTING THE SIMULATOR

Turning the power off and on will reset the simulator.

ERROR CODES

The following list of error codes indicate the cause and corrective action:

REMEDY: Turn the simulator off. Fill container with 500 ml of certified solution and

reassemble top housing and container.

REMEDY: Cannot be remedied in the field. Requires service*

REMEDY: Turn “off” – wait 3-5 seconds, then turn “on”.

The temperature sensor is open or the sensor is

shorted. The computer is receiving no signal to

allow it to control the temperature.

Electronics need to be reset.

INSTRUCTIONS FOR USE OF THE GUTH MODEL 2100 ALCOHOL BREATH

SIMULATOR:

1. Add tubing and connector to the simulator.

2. Remove the glass container from the simulator top housing.

3. Pour 500 ml of Certified Simulator Solution into the simulator container. The Guth

laboratory glass container has a 500 ml + 5% fill mark. The solution should never be

less than 500 ml prior to inserting the top housing.

4. Reassemble the simulator with the glass container. Be sure the container is properly

seated to the top housing DO NOT OVERTIGHTEN.

5. Turn the power ON. The simulator will alarm once and the display will completely

illuminate as shown in figure 1. This indicates the display is functioning properly.

Figure 1

6. The L.E.D. test display in figure 1 will remain for approximately one second and then

change to the COLD display as shown in figure 2.

Figure 2

7. Scanning of the decimal dots across the bottom of the display indicates the simulator is

heating.

8. When the solution reaches 33.6oC, the display will indicate the actual temperature. As

the simulator controls the temperature, the last decimal point of the display will pulse

indicating proper operation.

9. When 34.0ochas been obtained (as shown in Figure 3), the heater indicator will pulse

less frequently. It is normal for the simulator to display the temperatures of 34.0c and

33.9c. The simulator is controlling the temperature properly.

Figure 3

510

RETURNING A SIMULATOR:

If you have been unsuccessful in reuniting the mercury column, or repairing the

simulator in the field, please call our Product Service Department for assistance or a RMA (Return

Material Authorization) number.

GUTH LABORATORIES, INC.

590 NORTH 67th STREET

HARRISBURG, PA 17111-4511

(717) 564-5470

(800) 233-2338

NOTE: When returning the simulator, it is imperative the laboratory glass container is

attached. This is necessary to protect critical parts of the simulator. Remove the glass

container, empty contents, dry thoroughly, and replace container. Carefully wrap the

simulator in bubble wrap, newspaper, paper towels, etc. Package the simulator well placing

packing material UNDER, AROUND, and ABOVE the simulator. Insure your package for

$600.00 per simulator.

10. Allow approximately fifteen minutes for the simulator to stabilize.

11. After the simulator is stabilized, it is ready for use (See diagram):

When manually operating the simulator, take a deep breath and blow into the

mouthpiece for a 4 to 7 second duration.

The blowing technique should imitate a person providing a breath sample into the

breath test simulator. After the breath test sample is introduced into the breath analyzer, the breath

analyzer performs the analysis and provides a final result.

The following alternative means also fulfill the requirement of providing air through the

tubing attached to the simulator: a simulator bellows pump, a pump-powered air source, or an

atomizer. Several models of pumps are available through Guth Laboratories.

If a low reading is obtained, check all tubing for leaks. Be sure the glass container is

properly tightened to the metal top housing. Loosen and re-tighten the laboratory glass container.

DO NOT OVERTIGHTEN. Repeat the testing procedure.

IF THE SIMULATOR DOES NOT HEAT TO 34oCand you have purchased the OPTIONAL

calibration thermometer:

Check the temperature with the NIST Reference Thermometer (if not available see page 9

("RETURNING A SIMULATOR"). Remove the chrome cap from the fitting located on the

center of the simulator. Carefully insert the NIST thermometer into this port.

If the NIST thermometer does not indicate a temperature of 34oC + .15oC, inspect the

thermometer for mercury separation.

SEPARATION IN THE CONTRACTION CHAMBER

.5 .5

Separation of mercury in the contraction chamber is an entirely different problem. Many

thermometers contain scale ranges which begin well above ambient temperatures. These

thermometers are provided with a contraction chamber or enlargement which prevents the

mercury from entering the bulb at ambient temperatures. Unusual handling of the themometer

may cause a separation in the contraction chamber.

The procedure to rejoin this mercury is relatively simple. If the separated mercury is in the

form of a very slight amount, invert the thermometer and tap gently against the palm of the hand.

(It is recommended that protection be used in the palm of the hand - paper towel, cloth, etc.

against glass breakage.) This will cause a greater separation, adding volume and weight to the

separated portion. The thermometer should then be righted and gripped firmly in the hand with

bulb outward. Sharply swing the thermometer downward at one's side in a 270 to 180 degree arc.

The centrifugal force thus generated will join the separated mercury to the main portion. If the

original separation contained a large volume, only the latter step of swinging the thermometer

downward need be followed.

SEPARATION IN THE LOWER AND MIDDLE PORTION OF THE COLUMN

.5 .5

Separations of this type are less frequent and more difficult to repair. There are more variables,

and no one explanation will cover all types of thermometers.

The general procedure is to subject the bulb only to a temperature (in an ice bath or freezer)

sufficient to retract all the mercury into the bulb. A slow and careful return to ambient

temperature will return an intact column. Our experience has shown that additional problems may

be caused in these procedures, and we point out the following cautions:

Allow thermometer to return to ambient or room air slowly, or breakage may occur. This

breakage is caused by mercury thawing in the capillary more slowly than the mercury in the bulb

thereby creating an impasse to the expanding mercury. In order to avoid this breakage, extreme

care must be taken to allow the mercury in the bulb to liquify at the same rate as the mercury in the

capillary.

Position the thermometer vertically and allow it to return to ambient temperatures. Extreme

care must be taken to insure the thermometer is not jarred or at the slightest angle while the

nitrogen gas and the mercury return into the capillary. If this care is not taken, mercury will enter

the capillary prior to the gas. This will cause gas bubbles to develop in the bulb and, in turn, cause

considerable inaccuracy which may be undetectable when the thermometer is placed into use.

1) If there is no separation, return the unit to Guth Laboratories,

Inc. (See instructions page 9).

2) If there is a separation...Try another NIST thermometer (or)

follow the instructions for rejoining a mercury separation.

CAUTION:If amercury thermometer is accidentally broken, be very careful. Mercury is

poisonous.. DO NOT allow direct contact with skin or mouth! Use rubber gloves to clean any

spill.

INSTRUCTIONS FOR REJOINING MERCURY SEPARATIONS IN GLASS

THERMOMETERS

All Guth precision thermometers are sealed under extremely high nitrogen pressure while

drawing the mercury into the lower portion of the capillary. This process, when coupled with acid

washed tubing and triple distilled mercury, although costly, greatly reduces the frequency of

separations in the capillary portion of the thermometer.

Many instructions for rejoining separations begin with "the mercury may be retracted into the

bulb by immersing it in a suitable mixture of dry ice and alcohol..." This statement is NOT

specific enough. Determine the type of separation from the illustrations provided and proceed

according to these instructions.

SEPARATION AT THE UPPER PORTION OF MERCURY COLUMN

.5 .5

All well constructed thermometers contain an expansion chamber or bubble at the extreme top

of the capillary. This chamber serves a twofold purpose; one, to accommodate an overflow of

mercury when the thermometer is subjected to temperatures in excess of its scale range and two, as

ameans of rejoining this type of separation.

With the thermometer in a vertical position, slowly heat the bulb under WARM tap water until

the separated segments and a portion of the main (intact) column enter the top chamber. (Extreme

care must be taken to insure that the mercury does NOT fill more than HALF to THREE-

QUARTERS of the chamber volume; otherwise, breakage of the bulb will result). The nitrogen

pressure will force a rejoining of the mercury. While positioning the thermometer vertically,

examine the column as it cools and retracts to be sure it is intact.