Protimeter MMS Plus Operating Manual

GE

Sensing

Protimeter MMS

Moisture Measurement System

Instruction Manual

GE

Sensing

Protimeter MMS

Moisture Measurement System

Instruction Manual

INS5800A
October 2005

Table of Contents

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1. Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Switching the MMS ON and OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2 Optional Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. Moisture Meter Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Search Mode - Selection and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2 Measure Mode - Selection and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 Hygrometer Mode - Selection and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.4 Condensator Mode - Selection and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.5 Setup Mode - Selection and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.6 Holding and Measurement Storage Mode - Selection and Use . . . . 13

3. Diagnostic Procedure Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4. Calibration Checking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5. Care and Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6. Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7. Displaying the MMS Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

A1. Using the Protimeter MMS to Measure Moisture in Floors . . . . . . . . . . . . . 18

A1.1 Rapid Moisture Level Assessment of Solid Floors. . . . . . . . . . . . . . . . 18

A1.2 Equilibrium Relative Humidity Measurements in Solid Floors. . . . . 19

i

Introduction

The Protimeter Moisture Measurement System (Protimeter MMS), is a
powerful and versatile instrument for measuring and diagnosing dampness in
buildings and building materials. This product enables building surveyors and
other practitioners to measure moisture levels of building elements such as
walls, floors and building environments simply by switching between the
three different modes of operation. In this way, a detailed understanding of the
moisture condition of the property can be obtained.

1 Product Features

The Protimeter MMS kit comprises a carry case containing the MMS
instrument and a range of standard accessories, as detailed in Table 1 below.
As an example, the figure on the next page shows a BLD5800 kit.

Table 1: Protimeter MMS Kit

Description Part Number

Standard Kit

Kit with Hygrostick/Data cable/software

Kit with Humistick/Data cable/software

Kit Components

Protimeter MMS instrument POL5800JC

Instruction manual INS5800

Carry case POU5800-01

Moisture probe BLD5060

Deep Wall Probes (5.5 in. (140 mm) long) BLD5018

Surface temperature sensor (direct contact) BLD5804

Calibration check device (for %WME) BLD5086

Hygrostick/Humistick extension lead BLD5802

Hygrostick hygrometer probe POL4750

Humistick moisture probe POL7750-2

Data cable and software (option) BLD5810

BLD5800
BLD5800LH
BLD5800HS

Protimeter MMS Moisture Measurement System Page 1

POU5800-01

POL5800

BLD5802

BLD5804

BLD5060

BLD5018

POL4750

BLD5800 Kit

The Protimeter MMS instrument is a battery-powered, handheld unit that has
a cluster of four buttons and a large liquid crystal display (LCD). A sensor for
detecting moisture within solid materials is housed in the bulge at the top of
the instrument. The following external connections are found on the
instrument case (see the figure on the next page):

• EC 1 - This edge connection socket is for use with a Hygrostick or

Humistick probe.

• JC - This jack connection socket is for use with a moisture probe, deep

wall probes or a hammer electrode.

• EC 2 - This edge connection socket is for use with the Direct Contact

Surface Temperature Sensor and for connection to a PC when using the

optional MMS logging software.

Page 2 Protimeter MMS Moisture Measurement System

EC 1

EC 2

JC

Search Mode Sensor

The following probes and sensors are included in the standard Protimeter
MMS kits:

• The Hygrostick

measure relative humidity (%RH) and ambient air temperature (T

®

(POL4750) and Humistick® (POL7750-2) probes

AIR) in

rooms or materials. They can be connected to the Protimeter MMS
instrument either directly or by means of the Hygrostick/Humistick
extension lead.

• The surface temperature sensor (TS) is used when investigating

condensation situations.

• The moisture probe is used to obtain percent moisture content values in

wood or wood moisture equivalent (WME) values in other non-conductive
materials.

• Deep wall probes are used to obtain WME values deep below the surface in

solid structures such as walls and floors.

Protimeter MMS Moisture Measurement System Page 3

1.1 Switching the MMS ON and OFF

Prior to initial use, ensure that two AA batteries are correctly inserted in the
battery compartment.

Note: Low battery power is indicated by on the display; when this

symbol appears, replace the batteries.

Switch the MMS ON by pressing momentarily.

The MMS switches OFF automatically after 1 minute, unless the default setup
is changed (see section 2.5 for instructions). To switch the instrument OFF

immediately, press and hold for at least 3 seconds. Once has been
depressed for 3 seconds or more, all text blocks appear on the display; when

is released, the text blocks disappear and the unit switches OFF.

!

1.2 Optional Accessories

A range of optional accessories may be used with the Protimeter MMS. These
include:

• hammer electrodes

• data download software & cable

• additional Hygrosticks and Humisticks

For more information please contact GE Sensing.

2 Moisture Meter Modes

The Protimeter MMS can be used to detect and measure moisture in non­conductive solid materials such as wood, drywall and masonry. Two modes of
operation are available, the Search Mode for qualitative measurements and the
Measure Mode for precise and localized moisture content measurements in
wood or WME values in materials other than wood.

Page 4 Protimeter MMS Moisture Measurement System

2.1 Search Mode - Selection and Use

Turn the MMS ON by pressing . Select the moisture meter mode by
pressing
corner of the LCD. Then press

REL

The instrument can now be used to take relative moisture readings in solid,
homogenous materials (such as walls and floors) by holding the leading edge
of the sensor bulge against the surface (see the figure below) at an angle
ranging from 20° to 50°. Relative readings ranging from 0-1000 appear on the
LCD together with a progress bar that indicates whether the material is in a
DRY, AT RISK or WET condition.

As reliable readings are obtained only
if the leading edge of the sensor bulge
is in direct contact with the surface, the
Search mode is not suitable for
surveying textured finishes. The
nominal depth of penetration is up to

0.6 in. (15 mm) in dense, homogeneous
materials. Readings taken through low­density coverings (carpets, polystyrene
tiles, etc.) will not be representative of
the moisture level in the substrate itself.
When using the MMS in Search mode,
it is recommended that no attachments
(i.e. Hygrostick probe, Humistick
probe, Surface Temperature Sensor, or
Moisture probe) are connected. This
practice will minimize reading errors
and the potential for electromagnetic
interference with other electronic
equipment.

XX repeatedly until the word MOISTURE is visible in the top right

X to select the Search mode, indicated by

)

)

)

)

on the LCD.

2.1.1 Search Mode - Zeroing Function

If that instrument is used in Search Mode at an ambient temperature that is
significantly different from the ambient temperature at the time of the original
calibration, the instrument may show a small, non-zero reading when held in
free air.

Protimeter MMS Moisture Measurement System Page 5

If this should occur, re-zero the instrument as follows:

1. Remove any attached accessories

and select Moisture Search Mode
(see section 2.1 for instructions).

MOISTURE & REL is displayed.

2. With one hand, hold the instrument

at least 12 in. (0.3 m) from all
objects (see the figure to the right).

3. With your other hand,

simultaneously press the
buttons. Hold them down until the
display shows nul, then Air. Quickly
release the buttons and continue to
hold the instrument as shown, well
clear of your body and your other
hand. Keep the instrument in free
air (i.e. at least 12 in. (0.3 m) from
all objects) while the display is
showing Air.

4. After about 10 seconds, the display should return to normal and the

instrument should read zero when held in free air.

XXand X

You may now take normal Search Mode readings with the MMS.

2.1.1.1 Troubleshooting the Zeroing Function - The instrument
changes mode when zeroing Is attempted

If the instrument changes mode when you attempt to zero it, you have most
likely not pressed the two buttons at exactly the same time. Return to Search
Mode and attempt to press and hold the two buttons simultaneously.

2.1.1.2 Troubleshooting the Zeroing Function - The instrument
shows Air, but then displays Err or E30 and shuts OFF

If this situation occurs, repeat the zeroing procedure. If this does not solve the
problem, it is likely that the temperature adjustment is outside the permitted
range. If possible, allow the unit to return to normal room temperature (about
20°C/68°F). If the unit will not re-zero at this temperature, the unit is likely
faulty and requires repair/service.

Page 6 Protimeter MMS Moisture Measurement System

2.2 Measure Mode - Selection and Use

Turn the MMS ON by pressing .
Select the moisture meter mode by
pressing
MOISTURE is visible in the top right
corner of the LCD. Then press
select the Measure mode, indicated by

%WME

Moisture Probe, Deep Wall Probe, or
Hammer Electrode into socket JC of

the MMS instrument.

The instrument can now be used to take
actual %MC readings in wood and
%WME readings in non-conductive
solid materials other than wood by
pushing the moisture probe pins into
the surface (see the figure to the right).
The measured value is displayed and the progress bar indicates whether the
material is in a DRY, AT RISK or WET condition, as listed in Table 2 below.

XX repeatedly until the word

X to

on the LCD. Connect the

Table 2: Measure Mode Readings

%MC (wood only) or %WME MMS Measure Mode Display

<8% – – – % (denotes out of range),

[inactive progress bar]

≥8% but <17% %MC or %WME value, DRY,

[active progress bar]

≥17% but <20% %MC or %WME value, AT RISK,

[active progress bar]

≥20% but <28% %MC or %WME value, WET,

[active progress bar]

≥28% to 100% Relative value only,

[active progress bar]

Protimeter MMS Moisture Measurement System Page 7

2.2.1 Using Auxiliary Moisture Probes in Measure Mode

To take sub-surface readings in masonry,
the Deep Wall Probes should be used
instead of the standard Moisture Probe.
To use the deep wall probes, drill two
1/4” (6 mm) diameter clearance holes,
spaced 2-3 in. (50-75 mm) apart, to the
required depth (see figure at right). Push
the two Deep Wall Probes into the holes
and press and hold the tips firmly
against the bottom of the holes. Ensure
that the probes are connected to socket
JC and measure the %WME value as
described in section 2.2.

Note: The most convenient way to take sub-surface readings in wood is by

using an optional Hammer Electrode.

2.2.2 Detecting Hygroscopic Salts

The Protimeter MMS instrument can be used as a basic salts detector when
used with the Moisture Probe, filter papers and distilled water (not included).
Moisten the filter paper with the water and take a reference reading across it
with the Moisture Probe. Then place the moistened filter paper against the
surface of interest and hold in place for 30 seconds. Remove the paper and
place the pins of the Moisture Probe across the paper again and observe the
reading. Compare this reading with the original reference reading. If the
difference is more than 20 points, there is significant salts contamination that
may warrant further investigation.

2.3 Hygrometer Mode - Selection and Use

To use the Protimeter MMS as a hygrometer, connect the Hygrostick or
Humistick probe into socket EC1 either directly or indirectly with the

extension lead. Turn the MMS ON by pressing . Then, select the
hygrometer mode by pressing
visible in the top left corner of the LCD. Then press

humidity (%rh), ambient temperature (T
specific humidity (g.Lb or AbS) as required. Temperature values can be

displayed in °C or °F (see section 2.5 for instructions).

Page 8 Protimeter MMS Moisture Measurement System

XX repeatedly until the word HYGROMETER is

X to select relative

AIR), dew point temperature (TDEW), or

Note: The Mixing Ratio (AbS) or Specific Humidity (g.Lb) displays are

preceded by a momentary beep to draw attention to the unit of
measure prior to displaying the value.

%rh and T

AIR measurements are

made with the Hygrostick or
Humistick sensor, and the MMS

instrument uses these values to
calculate T

DEW. When using the

MMS to measure the conditions in
air, the humidity probe is normally
connected directly to the instrument.
However, when it is impractical or
awkward to use the instrument in this
way, the extension lead may be used
to connect the Hygrostick or
Humistick to the instrument.
Typically, the extension lead will be
used when taking readings from
probes that have been embedded in
structures such as walls and floors.

2.4 Condensator Mode - Selection and Use

The Condensator Mode enables the
user to assess the risk of
condensation occurring on surfaces
or to confirm whether or not
condensation is present on a surface.

To use the MMS as a Condensator,
connect a Hygrostick probe directly
into socket EC1 and connect the
surface temperature sensor into
socket EC2. Turn the MMS ON by

pressing . Select the condensator
mode by pressing

XX repeatedly

until the word CONDENSATOR is
visible at the top of the LCD. Then
press

X to select relative humidity (%rh), ambient temperature (TAIR), dew

point temperature (T

DIFF) as required. TS and TDIFF measurements can only be obtained if a

(T

Protimeter MMS Moisture Measurement System Page 9

DEW), surface temperature (TS) or temperature difference

Surface Temperature Sensor is connected to the instrument and held against

the surface of interest. Temperature values can be displayed in °C or °F (see
section 2.5 for instructions).

T

DIFF is a useful function when investigating condensation, as it tells the user

how many degrees a surface is above or below the prevailing dew point
temperature. When a surface exceeds the dew point by more than 3°C, T

DIFF is

displayed with the message NO CONDENSATION. When a surface exceeds
the dew point by 3°C or less, T

DIFF is displayed with the message AT RISK, NO

CONDENSATION. When the surface temperature is equal to or lower than the
dew point, a negative T
The progress bar is activated when T

DIFF is displayed with the message CONDENSATION.

DIFF is less than 14°C above the dew

point. The indicator moves from left to right to signify the increasing risk and
degree of condensation. Table 3 below summarizes this functionality.

Table 3: Condensator Mode Readings

Temperature of Surface MMS Condensator Mode Display

>14°C above dew point T

≤14°C but >3°C above dew point T

≤3°C above dew point T

≤ dew point T

DIFF, NO CONDENSTATION,

[inactive progress bar]

DIFF, NO CONDENSTATION,

[active progress bar]

DIFF, AT RISK, NO CONDENSTATION,

[active progress bar]

DIFF, CONDENSTATION,

[active progress bar]

Page 10 Protimeter MMS Moisture Measurement System

2.4.1 Sensor Installation

All humidity probes must be plugged into socket EC1 in the top (“nose”) of
the instrument. This includes:

• POL4750 Hygrostick (30-100% RH)

• POL7750-2 Humistick (1-100% RH)

The only accessories that should be plugged into socket EC2 on the side of the
instrument are:

• BLD5804 Surface Temperature Probe

• MMS-to-PC Data Logging Cable

Note: With older instruments, the Low RH Sensor (0-40% RH) BLD5812

was plugged into socket EC2 on the side of the instrument.

2.5 Setup Mode - Selection and Use

The Protimeter MMS instrument has a range of features that can be selected
by the user (see Table 4 on the next page).

To enter the Setup Mode, switch the instrument ON and disconnect any
attachments that may be connected. When the display shows three horizontal

dashes ( - - - ), press momentarily; the word SETUP then appears in the
bottom left corner of the LCD together with the code S 1 in the middle of the
display. Within three seconds, press
codes as detailed in Table 4 on the next page. Press
option.

Protimeter MMS Moisture Measurement System Page 11

XX repeatedly to scroll through the setup

X to set the desired setup

Table 4: Setup Options

Setup Code Setup Selection

S 1 Displays temperature values in °C
S 2 Displays temperature values in °F
S 3 Activates LCD backlight
S 4 Deactivates LCD backlight
S 5 Activates beeper
S 6 Deactivates beeper

DEF Default settings (°C, activated backlight, activated beeper, 1 min.

auto switch off)

0.00 Real-time clock (adjustable only through IrdA comm port with
Protimeter software)

T 1 Auto switch off adjustment, from 1-6 minutes

Example 1: To deactivate the backlight and change the temperature

readings from °C to °F:

• Enter Setup Mode by pressing momentarily.

• When the display shows - - - , scroll to S 4 by pressing XX.

• Press X to select the deactivated backlight option.

• Scroll to S 2 by pressing XX.

• Press X to select the °F display option.

• Press momentarily (or wait for three seconds) to return to

Operating Mode.

The instrument now displays temperatures in °F with no backlighting.

Example 2: To change the auto switch off time from the default 1 minute

to 5 minutes:

• Enter Setup Mode by pressing momentarily.

• When the display shows - - - , scroll to T 1 by pressing XX.

• Press X four times to display T 5.

• Press momentarily (or wait for three seconds) to return to

Operating Mode.

The instrument now switches OFF automatically after 5 minutes.

Page 12 Protimeter MMS Moisture Measurement System

2.6 Holding and Measurement Storage Mode ­Selection and Use

Moisture, temperature and RH readings can be held by pressing and holding

. If the button is held down for less than three seconds, the instrument
reverts to the previously selected mode of measurement. If the button is held
down for more than three seconds, the instrument switches off when the
button is released (see section 1.1).

Readings can be stored in the MMS memory (minimum of 300 line entries)
by pressing
this function in the various modes. Contents of the memory can be

downloaded to a PC running Microsoft
uploaded to the MMS with the Protimeter MMS Logging Software.

Note: For further information see the MMS Logging Help document

MOISTURE

HYGROMETER

CONDENSATOR

. Table 5 below details the information that is stored when using

®

Windows 95 or later, and can be

(INS5800L) supplied with the Protimeter Logging Software CD.

Table 5: Logging Information

Mode Display Information Logged

yr/mm/dd, hr:min, relative value

)

)

REL

Meter

%WME

)

)

(e.g. 00/01/07, 09:30, 530)
yr/mm/dd, hr:min, %WME value

(e.g. 00/01/07, 09:30, 12.5)

%rh yr/mm/dd, hr:min, %rh, TAIR, Hygrostick SN

(e.g. 00/01/07, 09:30, 52.5, 21.2, 123456)

T

AIR yr/mm/dd, hr:min, TAIR, Hygrostick SN

(e.g. 00/01/07, 09:30, 21.2, 123456)

T

DEW yr/mm/dd, hr:min, TAIR, TDEW, Hygrostick SN

(e.g. 00/01/07, 09:30, 21.2, 10.5, 123456)

%rh yr/mm/dd, hr:min, %rh, TAIR, Hygrostick SN

(e.g. 00/01/07, 09:30, 52.5, 21.2, 123456)

T

AIR yr/mm/dd, hr:min, TAIR, Hygrostick SN

(e.g. 00/01/07, 09:30, 21.2, 123456)

T

DEW yr/mm/dd, hr:min, TAIR, TDEW, Hygrostick SN

(e.g. 00/01/07, 09:30, 21.2, 10.5, 123456)

T

S yr/mm/dd, hr:min, TS

(e.g. 00/01/07, 09:30, 18.6)

T

DIFF yr/mm/dd, hr:min, TDIFF, TAIR, TDEW, Hygrostick SN

(e.g. 00/01/07, 09:30, 8.1, 21.2, 10.5, 123456)

Protimeter MMS Moisture Measurement System Page 13

3 Diagnostic Procedure Guidelines

When diagnosing dampness in buildings, there are three key criteria that must
be considered. These are outlined in Table 6 below.

Table 6: Diagnostic Criteria

Item Criteria Notes

1 Is a wall or other building

element in a safe air-dry
condition?

2 Is the surface temperature of a

wall or other building element
above or below the dew point?

3 Is a wall surface or other

building element
contaminated with
hygroscopic salts or other
conductive material?

Air-dry is the moisture content that is
normal and safe (from moisture-related
deterioration or decay) in buildings. When
the Protimeter MMS moisture meter modes
are selected, measured values are identified
as

DRY, AT RISK or WET.

Dew point is the temperature at which a
given quantity of air becomes saturated
(100% RH) and forms dew, or
condensation. If a surface is colder than the
dew point, condensation occurs. When the
Protimeter MMS Condensator Mode is
selected to measure T
a surface to the dew point) the instrument
identifies either a
condition, an

AT RISK condition, or a

DIFF (the proximity of

NO CONDENSATION

CONDENSATION occurring condition.

Artificially high moisture meter readings
may be obtained either in material that has
been heavily contaminated by hygroscopic
salts or in materials that are conductive by
nature. The presence or absence of nitrates
and chlorides should be established when
investigating suspected rising dampness
situations in particular.

Item 1: The Search and Measure modes should be used in combination to

map out the extent of a moisture problem and to distinguish between
surface and sub-surface moisture. The profile of readings obtained
will give insight into the potential cause (e.g. condensation, lateral
ingress or rising dampness) of a moisture-related problem.

Far greater insight will be obtained from moisture readings taken in a
methodical manner than from those taken in a random manner. When
testing walls, the user should start by taking readings at the lower
levels and move up the wall in regular steps of 4-6 in. (10-15 cm).

Page 14 Protimeter MMS Moisture Measurement System

When high sub-surface relative readings are obtained in the Search
mode, the user is strongly recommended to quantify these values in
%WME terms by using the Deep Wall Probes in the Measure mode.
If the depth of clearance holes is increased incrementally by a
nominal 0.4 in. (10 mm) at a time, the moisture profile through the
wall can be established.

Item 2: Condensation related moisture problems are common. When

assessing the risk of condensation, or confirming its existence, the
proximity of the actual temperature of the surface under
investigation to the dew point must be established. The T

DIFF

measurement in CONDENSATOR mode tells the user how many
degrees the temperature of a surface is above or below the dew point.

As many condensation situations are transient, T

DIFF readings should

be taken in a methodical and regular manner, similar to moisture
meter readings in materials. Ambient RH and temperature values
should also be taken to assess the moisture condition of the room as a
whole. Dwellings and working environments generally have an RH
from 40% to 60%, so there may be cause to investigate environments
that register RH values outside this range.

Item 3: Two hygroscopic salts, chlorides and nitrates, may build up on the

surface of walls where rising dampness or wicking occurs. As
groundwater moves through the wall and migrates to the surface,
salts tend to accumulate where the rate of evaporation of this water is
greatest. The salts themselves are non-conductive, but when mixed
with a small amount of moisture a highly conductive solution is
formed. The presence (or absence) of such salts should therefore be
established when rising dampness is suspected by using the
Protimeter MMS in Measure mode as described. When required, the
Protimeter Salts Analysis Kit (part number BLD4900) can be used to
identify the relative concentrations of nitrates and chlorides.

In summary, effective dampness diagnosis is a process that draws on the
knowledge and expertise of the surveyor. The Protimeter MMS kit enables the
user to investigate moisture levels in materials and environments from various
perspectives that, in turn, permits a more thorough and reliable judgement as
to the cause of dampness related problems.

Protimeter MMS Moisture Measurement System Page 15

4 Calibration Checking

Check the Moisture meter Measure Mode by holding the pins of the Moisture
Probe across the exposed wires of the calibration check device (Calcheck).

The WME value of correctly calibrated instruments is 17-19. Instruments that
register values outside this range should be returned to GE Sensing (or an
official GE Sensing distributor) for servicing.

Note: Search mode can be checked against a stable area of wall. For

comparative purposes, humidity and ambient temperature conditions
should be stable and consistent.

Work in g Hygrostick and Humistick probes can be checked against reference
probes and/or over standard salt solutions.

5 Care and Maintenance

The Protimeter MMS is a precision-built electronic instrument that will
provide many years of reliable service if the following points are observed:

• When not in use, keep the MMS instrument and its accessories in the

factory Carry Case. Store the case in a stable, dust-free environment and
keep it out of direct sunlight.

• If the instrument is to be stored for more than four weeks or if the low

battery power symbol appears on the display, remove the batteries from the

instrument.

• When using the MMS in Search mode, do not slide the bulge across

surfaces, as this may lead to rapid instrument case wear. The instrument
should be lifted and placed in position to prevent such wear.

• Check the condition of the MMS accessories on a regular basis, and replace

them if they become worn or damaged.

• To preserve their calibration characteristics, Hygrostick probes should not

be exposed to saturated environments. If this is unavoidable, Hygrostick
probes should be replaced on a regular basis and their calibration should be
checked frequently.

Page 16 Protimeter MMS Moisture Measurement System

6 Technical Specifications

Weights and Dimensions

Protimeter MMS Kit (BLD5800): 2.5 lb (1.1 kg),
9 in. x 7.5 in. x 3.5 in. (230 mm x 190 mm x 90 mm)

Protimeter MMS Instrument (POL5800JC): 10.58 oz (300 g),
7 in. x 2.75 in. x 1.9 in. (180 mm x 70 mm x 49 mm)

Hygrostick Probe (POL4750): 2 in. long x 0.3 in. (50 mm long x 8 mm),
optimal clearance hole 12 mm dia. (when used with compression sleeve
to measure ERH in solid material)

Humistick Probe (POL7750-2): 2.5 in. long x 0.5 in. (65 mm long x 12 mm)

Power

2 x AA batteries

Measurement Ranges

Moisture Meter

Search Mode: 0-1000 relative scale, nominal depth of

measurement 0.6 in. (15 mm),
tolerance ±10 relative scale

Measure Mode: 8-29 %WME, 30-100 relative scale in

saturated material

Hygrostick Probe

Measurement Range: 30-100 %rh, 32 to 122°F (-10 to 50°C)

Tolerance (nominal): 30-40 %rh, ±3 %rh @68°F (20°C)

41-98 %rh, ±2 %rh @68°F (20°C)
32 to 122°F (-10 to 50°C), ±0.6°F (±0.3°C)

Humistick Probe

Measurement Range: 0-100 %rh, 32 to 122°F (-10 to 50°C)

Tolerance (nominal): 0-10 %rh, ±3 %rh @68-86°F (20-30°C)

10-90 %rh, ±2 %rh @68-86°F (20-30°C)
90-100 %rh, ±3 %rh @68-86°F (20-30°C)
32 to 122°F (-10 to 50°C), ±0.6°F (±0.3°C)

Surface Temperature Sensor: 32 to 122°F (-10 to 50°C), ±0.6°F (±0.3°C)

Protimeter MMS Moisture Measurement System Page 17

7 Displaying the MMS Information

By pressing  while switching ON using , the following information is
displayed in sequence on the screen:

Information Example

Firmware Version 2.02
Instrument Part Number BLD5800
%rh Calibration Curve d2-5
Firmware Date yy-mm-dd
Hygrostick Serial No. (when connected) 123456

A1 Using the Protimeter MMS to Measure Moisture in

Floors

A1.1 Rapid Moisture Level Assessment of Solid Floors

Note: See section 2.1 for basic Search Mode instructions.

In Search Mode, the Protimeter MMS can be used to assess the moisture level
of solid concrete floor slabs in relative terms and to identify areas of concern
that may warrant a more detailed investigation.

Having selected the Search Mode, hold the bulge of the instrument against the
floor slab and note the value on the LCD. Slabs that register a value of 200 or
less are generally considered to be in a safe air-dry condition. If values of
more than 200 are recorded, we recommend that the actual moisture level of
the slab be quantified by alternative test procedures prior to laying decorative
floor coverings.

Page 18 Protimeter MMS Moisture Measurement System

A1.2 Equilibrium Relative Humidity Measurements in Solid

Floors

Note: See section 2.3 for basic Hygrometer Mode instructions.

In Hygrometer Mode, the Protimeter MMS can be used to measure the
equilibrium relative humidity (ERH) value of solid floor slabs. In essence,
this procedure measures the relative humidity (%rh) of a pocket of air that is
deemed to be in moisture equilibrium with the material under investigation.
Slabs that have an ERH value of 75% or lower are considered to be in a safe
air-dry condition. Slabs that have an ERH value of 80% or greater are
generally considered to be in a damp condition. Please refer to local standards
such as ASTM F2170 (USA) and BS8203:1996 (UK).

Note: These tests must be performed with the Hygrostick sensor only.

IMPORTANT: Moisture sensitive coverings that are laid onto damp floors

may fail in service.

A1.2.1 Sub-Surface ERH Test Procedure

(without using Protimeter Humidity Sleeves)

To perform the sub-surface ERH test, complete the following steps:

1. Drill 1/2” (12 mm) diameter clearance holes to a nominal depth of 2”

(50 mm) at the required points of measurement (POMs) and remove all

debris from the hole. Plug or cover the holes with suitable impervious

material. Ideally, the holes should be drilled 24 hours before measurements

are to be taken.

2. Push the Hygrostick assembly into the pre-drilled

hole and twist firmly to seal (see figure at right).

Ideally, leave the Hygrostick in the hole for 60

minutes before taking a reading.

3. Use the extension lead (supplied in the MMS kit) to

connect the Hygrostick to the MMS instrument

(having previously removed the protective yellow

Hygrostick cap, if fitted).

4. Select the Hygrometer Mode of operation (as

detailed in section 2.3).

5. Measure the %rh in the hole. This is the ERH value of the floor slab.

Protimeter MMS Moisture Measurement System Page 19

A1.2.2 Sub-Surface ERH Test Procedure

(using Protimeter Humidity Sleeves)

Protimeter Humidity Sleeves are convenient optional accessories for use with
Protimeter Hygrosticks. Clearance holes are drilled at the required POMs and
the Humidity Sleeves are inserted. As each Humidity Sleeve has its own
sealing cap, it is not necessary to plug or cover the drilled holes. Having
placed the Humidity Sleeves in the floor slab (ideally, 24 hours before ERH
measurements are to be taken), remove the cap and follow the procedure
starting with step 2 in the previous section. Please refer to local standards such
as ASTM F2170 (USA) for specific requirements.

A1.2.3 Sub-Surface ERH Test Procedure

(using Protimeter Surface Humidity Box)

If it is impractical or undesirable to take sub-surface ERH readings (the best
technique for determining the actual moisture condition of the slab) the
Hygrostick can be used in combination with a Humidity Box placed on the
surface. Typically, Humidity Boxes are used on floors with embedded heating
pipes or when a contractor is working to standards, such as BS 8203:1996
(UK), that specify surface ERH techniques.

A Protimeter Humidity Box (Part No. BLD4711) is available as an optional
accessory. It should be used in accordance with applicable standard
recommendations, or it should be placed at the POM for at least 24-hours
prior to taking ERH readings.

The information contained in this manual is given in good faith. As the method of use of the
instrument (and its accessories) and the interpretation of the readings are beyond the
control of the manufacturers, they cannot accept responsibility for any loss, consequential
or otherwise, resulting from its use.

®

Protimeter Hygrostick

Page 20 Protimeter MMS Moisture Measurement System

and Humistick® are registered trademarks of GE

USA

1100 Technology Park Drive
Billerica, MA 01821-4111
Web: www.gesensing.com/protimeterproducts

Ireland

Shannon Industrial Estate
Shannon, County Clare
Web: www.gesensing.com/protimeterproducts

INS5800, Rev. A