Lufft A1-SDI User manual

Manual A1-Sensors English
Page 1 of 29
A1-SDI
Sensors
Status V2 (11/2005)

Manual A1-Sensors English
Page 2 of 29
Table of Contents
1Read before using 3
2General 5
3PT100 Temperature Sensors 7
4Temperature/Humidity Sensors 10
5Flow Sensors 15
6Oil Sensor 24

Manual A1-Sensors English
Page 3 of 29
1 Read before using
• Before using the sensors, please read
the operating manual carefully and
follow the instructions in every detail.
• Never carry out measurements on live electrical parts.
• Pay attention to the measurement ranges of the sensors
(overheating can cause destruction).
• Only carry out sensor calibration with the aid of a suitable
reference device.
• The sensors generally require an adjustment period of
several minutes when changing to a location with a
different climate.

Manual A1-Sensors English
Page 4 of 29
Designated use:
• The sensors must only be operated within the range of the
specified technical data.
• The sensors must only be used under the conditions and
for the purposes for which they were designed.
• Operating safety can no longer be guaranteed if the
sensors are modified or reconstructed.

Manual A1-Sensors English
Page 5 of 29
2 General
In addition to the standard functions of the lower menu on the
A1-SDI, such as UNIT1, UNIT2, TIME, etc. (see A1-SDI Manual),
there are also the arrow menus F1...F4. Dependent on the
sensor, these arrows are used differently and may be assigned
to both a function and a unit. The table on the following page
provides a summary of the assignments. The list only includes
sensors for which at least one arrow menu has been assigned.

Manual A1-Sensors English
Page 6 of 29
Sensor F1 F2 F3 F4
T/H: 9130.52 g/kg gr/lb Pabs
T/H: 9130.53 g/kg gr/lb Pabs
T/HOIL: 9130.60 Oil para.
A
Oil para.
B
Aw value
V/T: 6120.51 fpm Pabs
V/T:6120.52 fpm Pabs
V/T: 6120.53 fpm Pabs

Manual A1-Sensors English
Page 7 of 29
3 PT100 Temperature Sensors
PT100 Plunge Sensor - 3120.51
• Application: Temperature measurement in solid, liquid and
powdery media
• Response time: 10 seconds
• Measurement variable: Temperature [°C/°F]
• Calibration: Single point calibration (see A1-SDI Manual)
• The sensor is recognized automatically by the A1-SDI

Manual A1-Sensors English
Page 8 of 29
PT100 Plunge sensors - 3120.52 and 3120.54
• Application: Temperature measurement in gaseous, liquid
and powdery media
• Response time: 10 seconds
• Measurement variable: Temperature [°C/°F]
• Calibration: Single point calibration (see A1-SDI Manual)
• The sensor is recognized automatically by the A1-SDI

Manual A1-Sensors English
Page 9 of 29
PT100 Plunge Sensor - 120.55
• Application: Temperature measurement in solid, liquid and
powdery foods
• Response time: 10 seconds
• Measurement variable: Temperature [°C/°F]
• Calibration: Single point calibration (see A1-SDI Manual)
• The sensor is recognized automatically by the A1-SDI

Manual A1-Sensors English
Page 10 of 29
4 Temperature/Humidity Sensors
Heating, Air Conditioning Sensor & Ventilating (HACV) - 9130.54
• Application: HACV humidity and temperature measurement
• Response time: ≤7 seconds
• Measurement variables:
Unit 1: Temperature [°C/°F]
Unit 2: Relative humidity [%], absolute humidity
[g/m³], dewpoint temperature [°C/°F]
• Calibration: Single/two point calibration (see A1-SDI
Manual)