General tools RHMG700DL, User Manual, Page: 11 / 21

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Alarm set sequence will return to the first step. Consider this a prompt to reset the HIGH alarm
setpoint to a value greater than the LOW alarm setpoint.
2) The original factory settings of the HIGH and LOW alarm setpoints are 85% and 25%,
respectively. So if your first use of the meter is in a exceptionally humid or dry environment, an
alarm may sound immediately. To disarm the alarm, follow the instructions in the preceding
two paragraphs.
MEASURING MOISTURE LEVELS
In addition to the modes for measuring five condensation-related parameters, the RHMG700DL
has two separate moisture level measurement modes:
MI and ME . In MI mode, the meter uses a
non-invasive (pinless) sensor on the back of the unit to detect moisture on or within 0.75 in.
(19mm) of the surface of a material. In
ME mode, the meter uses the included pin-type probe to
measure the conductivity of a material as a proxy for its moisture content.
In both moisture level measurement modes, the RHMG700DL’s display adds a vertical bar graph
to the digital readout of a material’s moisture level. The bar graphs (see below) have no scale;
they exist only to provide an analog way to quickly track changes in relative moisture levels.
To use the included pin-type probe to measure the moisture level of a material:
1. Use the UP> or <DN button to move the ▼ pointer above ME .
2. Insert the plug of the probe into the jack on the bottom of the RHMG700DL.
3. Remove the protective cap from the business end of the probe and set it aside.
4. Insert the pins of the probe into the material whose moisture level you wish to measure.
The measured moisture level will appear on the primary readout as a percentage, with the
ambient temperature below it on the secondary readout.
To use the pinless sensor to measure the moisture level of a material , use the UP> or <DN
button to move the
▼
pointer above MI . Hold the meter in either hand by wrapping your fingers
around the rubber grip at the bottom of the unit. Make sure that no part of your hand or fingers is
touching—or even near—the pinless sensor on the back of the meter.
If the primary readout shows 0.0% with the meter in your hand (and not touching anything), the
meter is ready to make measurements. To measure the moisture level of a material, press the
pinless sensor on the back of the meter (Fig. 1, Callout M) against it. The moisture level, as a
percentage, will appear on the primary readout.