Transforming Technologies Ohm Metrics SRM 310 User manual

T R A N S F O R M I N G T E C H N O L O G I E S , L L C
O U T S T A N D I N G A L T E R N A T I V E S I N S T A T I C C O N T R O L
Pocket Resistance Meter
Model SRM 310
Instruction Manual
Ohm Metrics™

Contents
1Description
SRM 310 1
Ohm Metrics 1
2Operation
Battery Installation 2
Measuring Surface Resistance 2
Measuring Resistance to Ground 2
Measuring Two Point Resistance 3
LED Indication Guide 4
Calibration 4
3Parts Included List 4
4Specifications 4
5Service and Warranty 5

1
Description
Ohm Metrics Pocket Resistance Meter:
SRM 310
This SRM 310 uses parallel electrodes and concentric
rings to accurately measure RTT, RTG, or resistivity for
periodic verification, factory audits or test lab evaluation
of product.
This meter is designed to verify incoming materials such
as floor mats, table mats, bins and shelving in static con-
trolled areas. Work surfaces, bags, wrist straps, footwear,
packaging materials, garments, and ESD chairs can also
be tested with the device.
The SRM310 meets periodic test requirements per Com-
pliance Verification ESD TR53 and conforms to ANSI/EOS/
ESD (S4.1, S7.1, S12.1, S2.1).
Ohm Metrics test and measurement products, from
Transforming Technologies, are useful, reliable tools for
characterizing and identifying the electrical resistance of
materials and the performance of personal grounding
products.
 All Ohm Metrics products are designed to support
ESDA Compliance Verification TR53.
 All Ohm Metrics products can be calibrated.
 All Ohm Metrics test and measurement products are
warranted for 1 full year.

2
Operation
Battery Installation
Remove screws from back cover using a Phillips style screw
driver and detach from monitor. Insert the included 9 volt
battery, replace back cover and secure with screws.
 Only new and valid batteries can be used.
 Low battery power is indicated when the last Red LED
flashes during measurement. Stop testing and replace
with fully charged 9v battery.
Measuring Surface Resistance
1. To measure the surface resistance of an object, hold the
instrument to the surface and press the TEST” button.
2. The value is indicated by colored LED lights.
3. Refer to “LED Indication Guide” on Page 4 for LED.
Other Measurements
By connecting the optional SR0055,Surface Resistance
Probes, it’s possible to measure other forms of resistance
such as “point to point” resistance ,or “volume resistance”.
Contact Transforming Technologies for Surface Resistance
Probes, Model number: SR0055.

Operation Cont.
3
Measuring Resistance to Ground
For surface resistant probes:
1. Plug in the supplied grounding cord into socket of the
meter. The associated internal electrode is now discon-
nected.
2. Connect the opposite end of the grounding cord to
“ground”.
3. Use Steps 1-3 in “Measuring Surface Resistance” to
complete the test.
Measuring Resistance Between Two Points
Note: Must have surface resistant probes:
1. Position the two 5lb probes 3 ft. away from the surface
to be measured.
2. Attach the 3.5mm leads to meter and connect the ba-
nana plug to probes.
3. Press power button to test.
NOTE: The voltage will automatically change to either 10v
or 100v depending on the resistivity of the material.
Refer to the EOS/ESD Specifications. EOS/ESD-S4.1, ANSI
-ESD S7.1 and EOS/ESD-S11.11-1993

Parts Included List
1. SRM 310
2. Carrying bag
3. 9V battery (installed in domestic shipment)
4. Grounding cord
5. User’s manual
4
Calibration
The recommended calibrating interval is 12 months.
Notice
This instrument is not approved for measurements in explo-
sion hazard areas. High electrostatic charges or measuring
highly charged materials might damage the instrument.
Using the instrument in power plants is not permitted.
LED Indication Guide
The LED lights on the meter indicates how much resistance a
surface has and if it is “Conductive”, “Dissipative” or
“Insulating” by flashing colored LED lights.
Alarm Indications
Display Resistance Indicates
GREEN <-105K Conductive
YELLOW 106-1011 M Dissipative
RED 1012 M-> Insulating

Service and Warranty
Transforming Technologies, LLC provides a limited war-
ranty for the Model SRM310. All new products are guaran-
teed to be free from defects in material and workmanship for
a period of one (1) year from the date of shipment. Liability
is limited to servicing (after evaluating, repairing or replac-
ing) any product returned to Transforming Technologies. The
company does not warrant damage due to misuse, neglect,
alteration or accident. In no event shall Transforming Tech-
nologies be liable for collateral or consequential damages.
To receive service under warranty, please contact Trans-
forming Technologies Technical Support.
Product Specifications
5
Specifications:
Dimensions/Weight 5.15” H x 2.50” W x 1.8” D /
8.46 oz
Test range: 103-1012
Test voltage: 10V/100V(automatic ranging)
Accuracy + 5%
Power Supply 9V-Battery (PP3)
Or rechargeable Battery
Probes: Internal parallel probe jacks.
External probes for SR0055
(internal probes are switched off)
Product Number
SRM310 Resistance Meter
SR0055 Probes (two required)

About Transforming Technologies
Since 1998, Transforming Technologies has helped
electronic manufacturing facilities to protect their prod-
ucts and processes from the many serious problems as-
sociated with static electricity.
Transforming Technologies offers a wide range of
unique and outstanding products to detect, protect,
eliminate and monitor electrostatic charges. Our prod-
ucts are integral components of an effective static con-
trol program.
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
3719 King Rd.
Toledo, Ohio 43617
TRA NSF ORMIN G TEC HNOL OGI ES, LLC