ENMET Formaldemeter htV User Manual
ENMET Corporation
PO Box 979
Ann Arbor, MI 48106-0979
Manual Part Number
80012-017
MCN-388, 10/25/07
Formaldemeter
htV
Formaldehyde Monitor
Operation Manual
Table of Contents
1.0 I
NTRODUCTION
1.1 Unpack...................................................................................................................................................... 1
1.2 Check Order.............................................................................................................................................. 1
1.3 Serial Numbers.......................................................................................................................................... 1
2.0 F
ORMALDEMETER HTV FEATURES
2.1 Important Points........................................................................................................................................ 2
2.2 Instrument Features.................................................................................................................................... 2
3.0 T
ECHNICAL INFORMATION
3.1 Principle of Operation................................................................................................................................ 3
3.2 Interferants................................................................................................................................................ 4
3.2.1 Phenol & Resorcinol........................................................................................................................ 4
3.2.2 Phenol filter life............................................................................................................................... 4
3.2.3 Alcohols & Aldehydes...................................................................................................................... 4
3.3 Sensor Background Reading ...................................................................................................................... 4
4.0 O
PERATION OF THE
4.1 Taking a Sample........................................................................................................................................ 5
4.2 Sensor Recovery Period............................................................................................................................. 5
5.0 M
AINTENANCE
5.1 General Information................................................................................................................................... 6
5.2 The Formaldemeter™htV Calibration Standard........................................................................................... 6
5.2.1 Effect of temperature........................................................................................................................ 6
5.2.2 Temperature equilibration................................................................................................................ 6
5.2.3 Standard life .................................................................................................................................... 6
5.3 Calibration Check Procedure...................................................................................................................... 6
5.3.1 Temperature equilibration................................................................................................................ 6
5.3.2 Sensor check.................................................................................................................................... 6
5.3.3 Procedure........................................................................................................................................ 7
5.4 Calibration Adjustment Procedure.............................................................................................................. 8
5.4.1 Temperature equilibration................................................................................................................ 8
5.4.2 Procedure........................................................................................................................................ 8
5.5 Instrument Battery..................................................................................................................................... 9
5.5.1 Low battery indicator....................................................................................................................... 9
5.5.2 Battery Replacement........................................................................................................................ 9
5.6 Cleaning the Instrument............................................................................................................................. 9
5.7 Storage......................................................................................................................................................9
5.8 Trouble Shooting....................................................................................................................................... 9
6.0 WARRANTY ................................................................................................................................... 10
.................................................................................................................................... 1
.......................................................................................................... 2
.....................................................................................................................3
PPM F
ORMALDEMETER™HT
V .................................................................................. 5
.....................................................................................................................................6
C
W
ARNING
List of Illustrations
F
IGURE
1: F
EATURES OF THE FORMALDEMETER™HT
T
ABLE
1: R
ELATIVE RESPONSE OF THE FORMALDEMETER™HTV TO VARIOUS COMPOUNDS IN THE VAPOR PHASE
N
OTE
: [important information about use of instrument – if not followed may have to redo some steps.]
AUTION
: [affects equipment – if not followed may cause damage to instrument, sensor etc…]
:
[affects personnel safety – if not followed may cause bodily injury or death.]
V.....................................................................................3
.4
Formaldemeter htV ENMET Corporation
1.0 Introduction
The PPM Formaldemeter™htV is an easy-to-use, hand held direct reading instrument designed for the rapid measurement of
airborne formaldehyde levels.
Please read these instructions carefully and familiarize yourself with the instrument before use. This operating manual will
provide you with all the necessary information for the correct use of your Formaldemeter™htV.
C
AUTION
1.1 Unpack
: Do Not use a Formaldemeter™htV with serial number of 5200 and above with an AMS-2 serial number 527 and
below. Also Do Not use the combination of Formaldemeter™htV serial number of 5153 and below with an AMS-2
serial number 258 and above.
These are incompatible, and would result in damage to both instruments.
Formaldemeter™htV serial number of 5200 and above and AMS-2 serial number 527 and below
Formaldemeter™htV serial number of 5153 and below and AMS-2 serial number 258 and above
N
OTE
:
All specifications stated in this manual may change without notice.
Unpack the Formaldemeter™htV and examine it for shipping damage. If such damage is observed, notify both ENMET
customer service personnel and the commercial carrier involved immediately.
Regarding Damaged Shipments
N
OTE
: It is your responsibility to follow these instructions. If they are not followed, the carrier will not honor
any claims for damage.
This shipment was carefully inspected, verified and properly packaged at our company and delivered to the carrier in
good condition.
When it was picked up by the carrier at ENMET, it legally became your company’s property.
If your shipment arrives damaged:
• Keep the items, packing material, and carton “As Is.” Within 5 days of receipt, notify the carrier’s local office and
request immediate inspection of the carton and the contents.
• After the inspection and after you have received written acknowledgment of the damage from the carrier, contact
ENMET Customer Service for return authorization and further instructions. Have your Purchase Order and Sales
Order numbers available.
ENMET either repairs or replaces damaged equipment and invoices the carrier to the extent of the liability coverage,
usually $100.00. Repair or replacement charges above that value are your company’s responsibility.
The shipping company may offer optional insurance coverage. ENMET only insures shipments with the shipping
company when asked to do so in writing by our customer. If you need your shipments insured, please forward a written
request to ENMET Customer Service.
Regarding Shortages
If there are any shortages or questions regarding this shipment, please notify ENMET Customer Service within 5 days of
receipt at the following address:
ENMET Corporation
680 Fairfield Court
Ann Arbor, MI 48108
734-761-1270 734-761-3220 Fax
1.2 Check Order
Check, the contents of the shipment against the purchase order. Verify that the Formaldemeter™htV is received as ordered. If
there are accessories on the order, ascertain that they are present. Check the contents of calibration kits. Notify ENMET
customer service personnel of any discrepancy immediately.
1.3 Serial Numbers
Each Formaldemeter™htV is serialized. These numbers are on tags on the equipment and are on record in an ENMET
database.
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ENMET Corporation Formaldemeter htV
2.0 Formaldemeter htV Features
Unlike other formaldehyde monitoring devices such as color stain tubes and badges, the Formaldemeter™htV is capable of
measuring many samples consecutively without the need for inconvenient ancillary equipment. Being ultra compact and battery
operated, the instrument is truly field portable. The Formaldemeter™ htV is extremely simple to use and provides immediate,
semi-quantitative readings of atmospheric formaldehyde concentration displayed on a digital read-out.
The instrument is designed to measure the concentration of formaldehyde in snatch (discrete) samples of air and should be
employed primarily as a screening device.
2.1 Important Points
It is important that you are aware of the following points when using the instrument
The Formaldemeter™htV is temperature compensated to operate most accurately in the range 5 – 40°C.
The results obtained with the Formaldemeter™htV are instantaneous spot readings. A single reading is not necessarily
representative of long term personal exposure. A series of readings taken at short intervals is preferable to infrequent tests.
Avoid smoking in the environment to be analyzed – tobacco smoke contains formaldehyde.
Care must be taken to ensure that fluid or dust is not drawn into the instrument.
This could permanently damage the sensor.
The Formaldemeter™htV has been designed to be sufficiently robust for everyday field use. However, should the unit
sustain a severe physical shock, the operation and calibration of the instrument should be checked using the supplied
formaldehyde calibration standard.
2.2 Instrument Features
See Figure 1 for location of each feature
Feature Description
Sampling Port The brass sampling port is the inlet through which the sample is drawn into sensor.
Display The liquid crystal display (LCD) shows the formaldehyde concentration of the sample in
0.01 ppm increments. The display also shows text messages during certain operations.
Display Key
sensor recovering
sensor ready
sampling
taking calibration sample
set calibration level
replace battery
instrument not calibrated
Keypad The instrument is operated by four buttons, some of which have multiple functions. The
button switches are located beneath the membrane and are operated by pressing firmly
where indicated.
Battery
Compartment
Serial Port
The battery compartment is located beneath a cover at the bottom rear of the instrument.
To gain access to the battery, simply remove the cover by unscrewing the two screws.
A low battery is indicated by on the display. See section 5.1 for guidance on
battery replacement.
This socket can be used for connecting your Formaldemeter™htV to the PPM Base Unit
or PC for automated continuous monitoring applications.
2
Formaldemeter htV ENMET Corporation
Battery
0.00
Formaldemeter
ON-OFF
Sampling Port
Serial No.
Display
Sample
ppm
Cal.
Serial Port
Button
Compartment
Keypad Area
htV
Front View Back View
Figure 1: Features of the Formaldemeter
™
htV
3.0 Technical Information
3.1 Principle of Operation
Electrochemical formaldehyde sensor
The Formaldemeter™htV uses proven electrochemical sensing technology for determining the concentration of formaldehyde
in air samples. The instrument contains an electrochemical formaldehyde sensor comprising two noble metal electrodes and a
suitable electrolyte.
When air is drawn into the sensor by means of the internal sampling system, a small voltage is generated which is directly
proportional in magnitude to the concentration of formaldehyde in the sample.
This voltage is produced as a result of the electrooxidation of formaldehyde at one of the catalytically active electrodes.
The signal is fed to a precision electronic amplifier and output on the instrument’s display, when calibrated, as formaldehyde
concentration in ppm (parts-per-million by volume).
All the electronic systems are based on modern, integrated circuitry employing the latest surface mount technology to ensure
that the Formaldemeter™htV is an exceptionally robust and reliable instrument.
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