Danfoss AK-HS 1000 Installation guide

Installation Guide

Temperature Sensor

Type AK-HS 1000

Mounting

084R8011

For controllers with galvanic separated
power supply

Calibration

In order to achieve an accuracy better than ±1 K of the temperature controlled, the
accuracy of the sensor and the connecting cables must be better than ±0.6 K.

All sensors have a measuring accuracy below ±0.45 K within the HACCP dened
temperature range of -30 °C to +20 °C. This is why it is essential that the cable resistance
does not exceed 0.15 K.

The cable resistance expressed in Kelvin can be calculated by using the formula below:
ρ x L

R = -------------

3.85 x q

R = Cable resistance expressed in Kelvin
ρ = Specic resistance of the material [Ω/m/mm²]
L = The length of the wire [in m there and back]
q = Cross-section of the wire [mm2]

Example:
ρ = 0.018
L = 10 m x 2 = 20 m
q = 0.75 mm

0.018 x 20
R = ----------------- = 0.12 K

3.85 x 0.75

2

084R8011

For controllers with non-galvanic
separated power supply

Pt 1000 ohm / 0 °C

°C ohm °C ohm

0 1000.0 0 1000.0
1 1003.9 -1 996.1
2 1007.8 -2 992.2
3 1011.7 -3 988.3
4 1015.6 -4 984.4
5 1019.5 -5 980.4
6 1023.4 -6 976.5
7 1027.3 -7 972.6
8 1031.2 -8 968.7

9 1035.1 -9 964.8
10 1039.0 -10 960.9
11 1042.9 -11 956.9
12 1046.8 -12 953.0
13 1050.7 -13 949.1
14 1054.6 -14 945.2
15 1058.5 -15 941.2
16 1062.4 -16 937.3
17 1066.3 -17 933.4
18 1070.2 -18 929.5
19 1074.0 -19 925.5
20 1077.9 -20 921.6
21 1081.8 -21 917.7
22 1085.7 -22 913.7
23 1089.6 -23 909.8
24 1093.5 -24 905.9
25 1097.3 -25 901.9
26 1101.2 -26 898.0
27 1105.1 -27 894.0
28 1109.0 -28 890.1
29 1112.8 -29 886.2
30 1116.7 -30 882.2
35 1136.1
40 1155.4
45 1174.7
50 1193.9

© Danfoss A/S (IA-MS/IM), 2014-11 IC.PI.P30.1A.02 / 520B6546 1

CERTIFICATE OF PERFORMANCE

It is herewith approved that AK-HS 1000 product sensors for temperature logging in combination
with the HACCP certied ADAP-KOOL® controllers comply with EN 13485 in respect to temperature
monitoring according to the EC regulation. 2005/37/EC.

Name and Address of Manufacturer within the European Community

Danfoss A/S
Nordborgvej 81
DK 6430 Nordborg
Denmark

Description of Equipment

Product Temperature sensor for refrigerated cabinets and cold rooms requiring monitoring for HACCP documentation and alarm.

Technical Summary

Temperature Range: -30 °C to +20 °C

Accuracy: +/- 0,3 °C at 0 °C and +/- 0,005 °C x temp

Time Constant: T90 = 3–15 mins.

Sensor Type: Platinum-based sensors, Pt-1000 Ohm according to EN 60751 Class B

Cable Connection: AK temperature sensors are two-wire devices, (Cable: 2 x 0.22 ~ 1.5 mm2). All connections are interchangeable

Enclosure: IP54 [Materials: Cover: ABS / Base: Polycarbonate (PC)] thereby protecting the sensor against heat radiation

from external ambient

Nordborg 2014-11-20 Thomas Matzen n

______________________ __________________________

Place and date of issue Production Quality Manager r

To be completed by Installer/Contractor for site HACCP Manager Reference and
Documentation

This AK-HS 1000 has been applied to the following application:

Location Name/Address: _______________________________________________

Cabinet / Cold Room Reference: _________________________________________

Installer / Contractor Name: _______________________________________

Signed: _________________________________________

Date: _____/_____/__________

© Danfoss A/S (IA-MS / IM), 2014-11 IC.PI.P30.1A.02 / 520B6546 2