Vaisala HUMICAP MMT310 Manual de servicio descargar pdf (Pagina 31)

www.vaisala.com

54 55

HMK15 Humidity Calibrator

No measuring instrument stays

accurate by itself. It is essential that

the functioning of an instrument

is periodically checked against a

reference. Vaisala has developed the

Vaisala Humidity Calibrator HMK15 to

make calibration and spot checking

of humidity probes and transmitters

easy and reliable.

Method used by

leading laboratories

The operating principle of the

HMK15 is based on the fact that a

saturated salt solution generates a

certain relative humidity in the air

above it. The reading of the humidity

probe or transmitter can then be

adjusted accordingly. Many leading

laboratories use this generally

In addition to laboratory use, Vaisala Humidity Calibrator HMK15 is suitable for on-

site checks of humidity probes and transmitters.

accepted and reliable method to

calibrate humidity instruments.

Usually two or three different salt

solutions are used. Salts are chosen

according to the application.

Certiﬁed salts

The HMK15 can be ordered with

certied and pre-measured salts.

A sample calibration is made from

each batch in Vaisala’s Measurement

Standards Laboratory (MSL).

Calibrated thermometer

The HMK15 can be ordered with

a thermometer, which is used for

measuring the temperature during

the calibration. It can also be used

for checking the temperature

measurement accuracy of the

transmitter. The thermometer can

contain either mercury (accuracy

±0.3 °C (±0.54 °F)) or red capillary

uid (accuracy ±1.0 °C (±1.8 °F)).

FINAS approved

Measurement Standards

Laboratory

Vaisala’s Measurement Standards

Laboratory is a FINAS accredited

calibration laboratory. FINAS is a

member of the EA (the European

Cooperation for Accreditation).

Features/Beneﬁts

▪

Easy and reliable calibration

of humidity probes and

transmitters

▪

Based on saturated salt

solutions

▪

Fast temperature equilibration

▪

No external power required

▪

Suitable for laboratory use

and on-site checks

▪

Chambers and transit covers

make HMK15 easy to transport

▪

Pre-measured certiﬁed salts

available

▪

Vaisala Service Centers oer

accredited calibrations for

humidity, temperature and

barometric pressure.

thermometer with

calibration certificate

transit covers

for secure

transportation

and long-term

storage

three step plugs to fit all

chamber holes (12 mm,

13.5 mm and 18.5 mm)

Technical data

General

The standard HMK15 consists of the following parts:

Two salt chambers, chamber covers and transit covers

Base plate

Choice of thermometers

mercury thermometer, Vaisala calibrated,

order code 19728HM

thermometer with red capillary liquid, calibrated by

manufacturer, order code 25130HM

Measurement cup and mixing spoon

Options

Certiﬁed and ready

dosed salts:

Order

code:

Total

uncertainty*:

LiCl salt 11 %RH 19729HM (±1.3%RH)

MgCl

salt 33 %RH 19730HM (±1.2%RH)

NaCl salt 75 %RH 19731HM (±1.5%RH)

salt 97 %RH 19732HM (±2.0%RH)

*Uncertainties given at +20 °C

on exchanged water 19767HM

Extra salt chambers 19766HM

Carrying bag HM27032

This material is subject to copyright protection, with all

copyrights retained by Vaisala and its individual partners. All

rights reserved. Any logos and/or product names are trademarks

of Vaisala or its individual partners. The reproduction, transfer,

distribution or storage of information contained in this brochure

in any form without the prior written consent of Vaisala is strictly

prohibited. All speciﬁcations — technical included — are subject

to change without notice.

For more information, visit

www.vaisala.com or contact

us at sales@vaisala.com

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 122 123

Comentarios a estos manuales

Sin comentarios

Vaisala HUMICAP MMT310 Manual de servicio Pagina 31

Comentarios a estos manuales

Relacionado con productos y manuales para De medición, control y control Vaisala HUMICAP MMT310