Vaisala HUMICAP HMT120 Series User manual

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DE
FR
ES
PT
JA
ZH
RU
M211247EN-E
Quick Guide
Vaisala HUMICAPâHumidity and Temperature
Transmitter Series
HMT120

PUBLISHED BY
Vaisala Oyj
Street address: Vanha Nurmijärventie 21, FI-01670 Vantaa, Finland
Mailing address: P.O. Box 26, FI-00421 Helsinki, Finland
Phone: [phone]
Visit our Internet pages at www.vaisala.com.
No part of this manual may be
reproduced, published or publicly
displayed in any form or by any
means, electronic or mechanical
(including photocopying), nor
may its contents be modified,
translated, adapted, sold or
disclosed to a third party without
prior written permission of the
copyright holder. Translated
manuals and translated portions
of multilingual documents are
based on the original English
versions. In ambiguous cases, the
English versions are applicable,
not the translations.
The contents of this manual are
subject to change without prior
notice.
Local rules and regulations may
vary and they shall take
precedence over the information
contained in this manual. Vaisala
makes no representations on this
manual’s compliance with the
local rules and regulations
applicable at any given time, and
hereby disclaims any and all
responsibilities related thereto.
This manual does not create any
legally binding obligations for
Vaisala towards customers or end
users. All legally binding
obligations and agreements are
included exclusively in the
applicable supply contract or the
General Conditions of Sale and
General Conditions of Service of
Vaisala.
This product contains software
developed by Vaisala or third
parties. Use of the software is
governed by license terms and
conditions included in the
applicable supply contract or, in
the absence of separate license
terms and conditions, by the
General License Conditions of
Vaisala Group.

Table of Contents
English............................................................................................................................ 5
Deutsch......................................................................................................................... 17
Français........................................................................................................................29
Español..........................................................................................................................41
Português.....................................................................................................................53
日本語.......................................................................................................................... 65
中文...............................................................................................................................77
Русский........................................................................................................................89
3
Drilling Template........................................................................................................102

4 M211247EN-E

Product Overview
Vaisala HUMICAPâHumidity and Temperature Transmitter Series HMT120 measures relative
humidity (RH) and temperature (T) and outputs the measurements to analog current loop
outputs. Other quantities, such as dewpoint (Td) can be calculated from the basic RH and T
values according to the device configuration.
HMT120 is available either with a fixed probe directly attached to the transmitter housing, or
with a remote probe with dierent (3/5/10/20m) cable lengths.
HMT120 can also be ordered with an optional LCD display without backlight.
HMT120 is typically installed mounted on the wall with up to four screws (not included). Rain
and radiation shields and a duct installation kit are available as accessories. A drilling template
is available at the end of this guide to help you position the screws correctly.
5
ENGLISH

Dimensions
14572
120
37
124
Ø 12
116
46
39
M4;4 pcs
91
92
78
Wall Assembly Dimensions
It is possible to damage the display when tightening the screws, as
there is not much room between the upper fastening holes and the exposed
display component. Be particularly careful when using a cordless drill.
CAUTION!
6 M211247EN-E

Opening the Transmitter Cover
To open the transmitter cover:
1. If the transmitter is not mounted already, hold it against a flat surface.
2. Push on the cover with your thumb, and pull the bottom part of the cover towards
yourself.
7
ENGLISH

Duct Installation Kit
A = Probe (HMP110)
B = Duct installation kit
C = Probe Cable
1. Pass the probe cable through the plastic pipe of the duct installation kit.
2. Connect the probe cable to the HMP110.
3. Use a 24mm drill bit to make a hole in the duct wall.
4. Use a 3.2mm drill bit to make four holes for the installation screws
(ST4.2x16-C-Z DIN7981 screw, 4pcs). The holes should be arranged
in a square around the 24mm hole, at a distance of 42mm from each other.
5. Mount the probe holder using the screws (D).
6. Adjust the depth of the plastic pipe and tighten the screw (E) to lock the probe in place.
A
B
C
42
F
D
E
D = Installation screw
E = Pipe locking screw
F = Probe (HMP110)
Ø 24
Ø 3,2x 4 pcs
29
59
20
Ø 15
205
42 53
Ø 22
6
Ø12
266
42
42
8 M211247EN-E

Wiring
1) Wiring Diagram
Service Port
LCD
Display
Cable Gland /
Cable Grommet
Field Wire Terminals
Test points
CH1/ CH2
2) Analog output test
SHLD
CH1-
CH1+
CH2-
CH2+
mA
mA
+ - CH1 TEST
CH2 TEST
1 SHLD
2 CH1-
3 CH1+
4 CH2-
5 CH2+
10...30VDC
10...30VDC
mA
mA
-
+
+ -
-
+
9
ENGLISH

Adjusting Humidity and Temperature with
Push Buttons
The instructions here apply to both 1-point and 2-point calibration.
To make a humidity or temperature adjustment:
1. Open the transmitter cover. There are 3 buttons marked ADJ, +and -on the motherboard.
There are also two indicator LEDs, one green and one red.
2. Press the ADJ button and hold it down until the green indicator LED begins to blink slowly
(800ms cycle time).
3. The transmitter is now in RH calibration state. Analog output and optional display will still
follow the actual measured RH value.
If you do not wish to perform the RH adjustment at this time, press the ADJ
button one more time. The green indicator LED turns o and the red
indicator LED begins to blink slowly (800ms cycle time) to indicate T
calibration state. To calibrate T, follow the instructions starting from step 7.
4. Remove the filter and insert the probe into a measurement hole of the dry end reference
chamber (for example, LiCl: 11 % RH) to do the low humidity oset adjustment.
Do not touch the adjustment buttons before the conditions have stabilized.
This takes approximately 30 minutes.
5. Press either the -or +button at least once, make sure that the Iout current is correct,
adjust using the -and +buttons if needed, and press the ADJ button again. The green
indicator LED begins to blink faster (400ms cycle time).
If you do not wish to perform the two-point RH adjustment at this time, press
the ADJ button one more time. The green indicator LED turns o and the red
indicator LED begins to blink slowly (800ms cycle time) to indicate T
calibration state. To calibrate T, follow the instructions starting from step 7.
If one-point calibration is done at more than 50% RH, a gain adjustment is
done instead of an oset adjustment.
6. Insert the probe into the high end reference chamber (for example, NaCl: 75 % RH
chamber in the humidity calibrator HMK15) and do the high humidity gain adjustment by
using the - and + buttons to make sure the Iout current is correct (you have to press either
-or +at least once even if the value is correct). To finish the RH calibration, press the ADJ
button. The green LED is now turned o and the red indicator LED begins to blink slowly
(800ms cycle time).
10 M211247EN-E