OPERATOR'S MANUAL
The instrument is powered by a 9-volt alkaline battery (supplied). The
instrument will notify you when the battery is starting to get low. The meter will
continue to operate, as this is just a warning that you will need to replace the
battery in the near future. Once the battery has reached a level that is too low,
the instrument will lock up the display with a “REPLACE BATTERY” message.
To access the battery, remove the battery cover and replace with a new 9-volt
alkaline battery. If the unit is going to be stored for more than a month without
use, we recommend removing the battery during storage.
Do not tamper with the enclosure of the instrument. Opening the enclosure
WILL affect the calibration of the instrument AND will void the warranty.
Do not apply excessive force to the switch. Doing so could affect the
performance of the instrument, especially if excessive force is applied during
testing.
The instrument has been calibrated for testing Guardian IS-15 AND IS-20 low e
coatings, along with other Guardian low e coatings. Testing of materials other
than those listed is not warranted to produce the correct test results. If you have
a custom application, consult the factory to find out if the product is applicable.
Guardian IS (Interior Surface) Detector
MODEL# RD1850
BATTERY REPLACEMENT
WARRANTY
USE / MIS-USE
The manufacturer warrants the electronics included in all models of the RD1850 to be free from defects in material
and workmanship under normal use and service as specified within the operator's manual. The manufacturer shall
repair or replace the unit within twelve (12) months from the original date of shipment after the unit is returned to the
manufacturers factory, prepaid by the user, and the unit is disclosed to the manufacturers satisfaction, to be thus
defective. This warranty shall not apply to any unit that has been repaired or altered other than by the
manufacturer. The aforementioned provisions do not extend the original warranty period of the unit which has been
repaired or replaced by the manufacturer. Batteries, enclosures, lenses and front panel interface components are
not covered by warranty.
EDTM, Inc. assumes no liability for the consequential damages of any kind through the use or misuse of the
RD1850 product by the purchaser or others. No other obligations or liabilities are expressed or implied. All
damage or liability claims will be limited to an amount equal to the sale price of the RD1850, as established by
EDTM, Inc.
1
4
Low E Coating
Detectors
(Model# AE1601)
DIGITAL!
Glass & Air Space
Laser Meters
(Model# GC3000)
EDTM, INC.
745 Capital Commons Drive Toledo, Ohio 43615 USA
Ph. 419-861-1030 Fx. 419-861-1031
EMAIL: SALES@EDTM.COM WEB: WWW.EDTM.COM
The Guardian IS Detector allows the user to easily identify the coated side of the
glass and differentiate if the coating is IS-15, IS-20 or a standard type of low e
coating. Simply place the meter against the glass surface and push the button.
The results will instantly be displayed on the LCD screen. The instrument
includes a MENU button that allows the user to operate the meter in SINGLE
TEST MODE or FREE RUNNING MODE (continual measurements).
Repeatedly pushing the MENU button will scroll through all of the available
options of the meter. When you find the option you desire, simply push the
Power/Select button and it will make your selection for you.
OTHER PRODUCTS FROM EDTM, INC.
FEATURES
Differentiate between IS-15, IS-20 and standard performance low e coatings
SINGLE TEST mode or FREE RUN continual measurement operating mode
Able to recalibrate instrument in the field
Backlit LCD display for testing in any light condition
User-friendly LCD display operation with step-by-step directions on how to use
“OPTO-CLEAN” error protection against dirty glass and dirty lens on the meter
Powered by standard 9-volt alkaline battery (included)
Automatic power-down feature to extend battery life
Tactile membrane switches on the front panel
