Danfoss AKS 4100, AKS 4100U Installation guide

Installation Guide

Danfoss

M84H0023_1

Danfoss

M84H0024_1

Danfoss
M84H0025_1

en

Liquid Level Sensor AKS 4100/4100U - Coaxial D14

zh

液位传感器 AKS 4100/4100U - 同轴套管式 D14

jp

タイプ AKS 4100/4100U - パイプ 式 D14

ru

Уровнимер AKS 4100/4100U - КОАКСИАЛ. D14

148R962 2

Available lengths:
可选长度:

使用できる長さ:

Доступные длины::

AKS 4100, 500 mm
AKS 4100, 800 mm
AKS 4100, 1000 mm
AKS 4100, 1200 mm
AKS 4100, 1500 mm
AKS 4100, 1700 mm
AKS 4100, 2200 mm

AKS 4100U, 19.2 in.
AKS 4100U, 30 in.
AKS 4100U, 45 in.
AKS 4100U, 55 in.
AKS 4100U, 65 in.
AKS 4100U, 85 in.

Info for UK customers only
Danfoss Ltd. Oxford Road, UB9
4LH Denham, UK

Push the wire through
the center hole.

将线缆
插入中间孔

ワイヤを
中央の穴に
押し込みます。

Пропустите трос через
центральное отверстие.



Danfoss

M84H0030_1

148R962 2

1 2

Reference point / 参照点 /
基準点 / Начальная точка

50 mm

36 mm
(1.4 in.)

(2 in.)

Reference point / 参照点 /
基準点 / Начальная точка

3

100 N
(23 lbs)

20 mm /

0.8 in.

4 5

© Danfoss | DCS (ms) | 2020.12

AN23828644201102-000501 | 1

B: 120 mm (4.7 in.)

H: (see tables)

Min: 30 mm (1.2 in.)

I: Ø2 mm (0.08 in.)

4 mA (0 %)*

Danfoss
M84H0072_1

20 mA
(100 %)*

A

G

C

D*

E

F

en zh

A Reference

point

B Top dead

zone

参照点

顶端死区

jp

基準点

上 部デ ッド
ゾーン

ru

2 | AN23828644201102-000501

C Measuring

D Probe

E Distance 距离

F Inner length

G Surface

H Buttom

* Values to be entered into HMI Quick Setup menu and recorded on the setting label.
Stick the setting label onto the Signal Converter either inside or outside.

将数值输入到 HMI 快速设置菜单，并在设置标签上标明。
将设置标签粘贴到信号转换器上，内侧或外侧均可。

HMI 高速設置メニューに入力して設定ラベルに記録する値。

内側か外側の設定ラベルを信号コンバータに貼り付けます。

Значения установленные при быстрой настройке уровнемера, необходимо

6

записать на бирку. Бирку можно разместить как и на преобразователе сигнала,

так и в нутри его.

Please note: It is mandatory to input dielectric constant for CO2 applications.

请注意：对于 CO2 应用，必须输入介电常数。

注意してください:CO2 を使用する場合には誘電率の入力が必須です

Внимание: при использовании с CO2 обезательно необходимо установить значение εr.

Dielectric Constant εr always set during Quick Setup
快速设置时总是要设置介电常数 εr

誘電率 εr は必ず高速設置中に設定してください。

Величина диэлектрической проницаемости (εr) всегда вводится через меню
«Быстрая настройка»

Refrigerant

制冷剂

冷媒

Хладагент

CO

2

Factory setting / 出厂设定 / 工場出荷時 の設定 / Заводская настройка

Refrigerant

制冷剂

冷媒

Хладагент

Ammonia

氨

アンモニア

Аммиак

Improved Bottom dead zone values after the adjustment of dielec tric constant

调整介电常数后，底端死区值有所改善

誘電率調整後の改良された下部デッドゾーンの値

Оптимизированные величины верхней и нижней мёртвых зон после введения
значения диэлектрической проницаемости

Refrigerant

制冷剂

冷媒

Хладагент

Ammonia

氨

アンモニア

Аммиак

Probe length

探头长度

プ ローブ 長

Длина измерительной

части

[mm] [in.] [mm] [in.]

500 19.7

800 31.5
1000 39.4
120 0 47. 2
150 0 59.1
170 0 6 6.9
2200 86.6

Probe length

探头长度

プ ローブ 長

Длина измерительной

части

[mm] [in.] [mm] [in.]

500 19.7 95 3.7

800 31.5 104 4.1
1000 39.4 110 4.3
120 0 47. 2 116 4.6
150 0 59.1 12 5 4.9
170 0 6 6.9 131 5. 2
2200 86.6 14 6 5.8

Probe length

探头长度

プ ローブ 長

Длина измерительной

части

[mm] [in.] [mm] [in.]

500 19.7

800 31.5
1000 39.4
120 0 47. 2
150 0 59.1
170 0 6 6.9
2200 86.6

Bottom D ead Zone

底端死区

下 部デ ッド ゾーン

Нижняя м ертвая зона

170 6.7

Bottom D ead Zone

底端死区

下 部デ ッド ゾーン

Нижняя м ертвая зона

Bottom D ead Zone

底端死区

下 部デ ッド ゾーン

Нижняя м ертвая зона

80 3.2

Нижняя м ертвая зона

Нижняя м ертвая зона

Нижняя м ертвая зона

Bottom D ead Zone

底端死区

下 部デ ッド ゾーン

Bottom D ead Zone

底端死区

下 部デ ッド ゾーン

Bottom D ead Zone

底端死区

下 部デ ッド ゾーン

Factory setting / 出厂设定 / 工場出荷時 の設定 / Заводская настройка

Refrigerant

制冷剂

冷媒

Хладагент

HCFC,HFC

Improved Bottom dead zone values after the adjustment of dielec tric constant

调整介电常数后，底端死区值有所改善

誘電率調整後の改良された下部デッドゾーンの値

Оптимизированные величины верхней и нижней мёртвых зон после введения
значения диэлектрической проницаемости

Refrigerant

制冷剂

冷媒

Хладагент

HCFC,HFC

Probe length

プ ローブ 長

Длина измерительной

[mm] [in.] [mm] [in.]

500 19.7 115 4.5

800 31.5 124 4.9
1000 39.4 130 5.1
120 0 47. 2 136 5.4
150 0 59.1 145 5.7
170 0 6 6.9 151 5.9
2200 86.6 16 6 6.5

Probe length

プ ローブ 長

Длина измерительной

[mm] [in.] [mm] [in.]

500 19.7

800 31.5
1000 39.4
120 0 47. 2
150 0 59.1
170 0 6 6.9
2200 86.6

range

length

of stand­pipe

level

dead zone
(see tables)

I Steel wire

insertion
length

探头长度

части

探头长度

части

测量范围

探头长度

計測範囲

プ ローブ 長

距離

立管内部
长度

直立管の内
部長さ

液位 液面レ ベル

底端死区
（参见表格)

下 部デッド
ゾーン (表を
参照

钢线插入长度鋼線挿入長

Bottom D ead Zone

底端死区

下 部デ ッド ゾーン

Нижняя м ертвая зона

Bottom D ead Zone

底端死区

下 部デ ッド ゾーン

Нижняя м ертвая зона

100 3 .9

Bottom D ead Zone

下 部デ ッド ゾーン

Нижняя м ертвая зона

Bottom D ead Zone

下 部デ ッド ゾーン

Нижняя м ертвая зона

© Danfoss | DCS (ms) | 2020.12

底端死区

底端死区

Danf
M84H0010_1

④①

AKS 41/41U

AKS 4100/4100U



Unscrew

拧开

ねじを外す

Отвинтите



Screw

拧

ねじ

Закрутите

 



Screw

拧

ねじ

Закрутите

Connector for HMI
HMI 连接头

HMI 用コ ネクタ

Подсоединение HMI

8

oss

Cover stop. 2.5 mm / 0.2 in. Allen Key.
盖挡. 2.5 mm / 0.2 in. 内六角

カバー止め 2.5 mm / 0.2 インチ六角レンチ

Фиксатор крышки ключ на 2.5 мм/

0.2 дюйма.

Loosen cover stop

 

 松开盖挡


カバー止めを緩めます

 Фиксатор крышки

7

AKS 41/41U with a.c supply to
AKS 4100/4100U with d.c supply.

AKS 41/41U（交流电源）至
AKS 4100/4100U（直流电源）

AC 電源付き AKS 41/41U から DC 電源付き
AKS 4100/4100U へ

Замена AKS 41 на AKS 4100

AKS 41/41U перененный ток на
AKS 4100/4100U постоянный ток

①②③

24 V a.c (L)

24 V a.c (N)

9

(+)

(–)

Danfoss EKC 347
or PLC

4-20 mA

24 V d.c (+)

24 V d.c (–)

Danfoss

M84H0027_1

–

+

④

②

③

Danfoss EKC 347
or PLC

10

© Danfoss | DCS (ms) | 2020.12

AN23828644201102-000501 | 3

AKS 4100/4100U connected to EKC 347

Danfoss

M84H0074_1

AKS 4100/4100U 连接到 EKC 347

EKC 347 に接続した AKS 4100/4100U

AKS 4100 подсоединение к EKC 347

 2. yellow / 黄 / 黄色 / желтый
 1. grey / 灰色 / グレー / серый
 green / 绿色 / 緑 /зеленый
 brown / 棕色 / 茶 / коричневый
 orang e / 橙 / オレン ジ / оранжевый
 yellow / 黄 / 黄色 / желтый
 brown / 棕色 / 茶 / коричневый
 white / 白 / 白 / белый

24 V DC from ICAD can also be used /
ICAD からの 24 V d.c も 使 用 で き ます / Может использовать питание 24 в пост. тока от ICAD

ICAD



ICAD 1st generation (pre2010)





ICAD 2



/

24 V d.c




nd

generation (2010+)




(+)

Danfoss

M84H0073_2

11

AKS 4100/4100U connected to PLC
AKS 4100/4100U 连接到 PLC

AKS 4100/4100U PLC に接続

AKS 4100 подсоединение к PLC

AKS 4100/4100U

+

–

14-30 V d.c.

(–)

ICM/ICAD valve Feedback position
ICM / ICAD 阀反馈 位置
ICM/ICAD バルブ フィードバック位置
ICM/ICAD определение позиции клапана

PLC

Active an alog input 4 – 20 mA / 14 – 30 V DC

アクティブ アナログ入力 4～20 mA 14～30 V DC

Актив ный аналоговый вы ход 4 – 20 мА 14-30 В пост. тока

+

–

4-20 mA

14-30 V d.c.

E.g./ 例如/ 例 напр имер

EKC 347 5 VA
AKVA coil 20W 55 VA

AKS 4100/4100U

12

4 | AN23828644201102-000501

+

–

© Danfoss | DCS (ms) | 2020.12

en

Enter menu system
Enter QUICK SETUP

13

DISTANCE

Unit change at
distance/level
readout:

m, cm, mm, in, ft

AKS 4100

*

Change between:

Distance*
Level**
Output (%)***
Output (mA)****

 4 – 20 mA output displayed as bar graph



and in percentage [%]

 Measurement name (in this example, DISTANCE)



 Device tag name



Measurement reading and unit



Device status (markers)



Marker 1, 2 and 3 (Error)

Hardware problem; the Signal Converter hardware is
defective. Contact Danfoss.

Marker 4 and 5 (Notification)

Depending on the level, the marker is ON or OFF.
Used for Danfoss service information only.

Keypad buttons



Flashing star indicating unit in operation.



* DISTANCE is a display option.
If the display is set to “DISTANCE” the displayed value will
be the distance from the Reference point to the top
surface of the liquid refrigerant (see fig. 5).

** LEVEL is display option.
If the display is set to “LEVEL” then the value displayed
will be:
PROBE LENGTH (entered in QUICK SETUP)
– DISTANCE (see fig. 5).

*** OUTPUT (%) is display option.
Will represent the level of refrigerant,in percent, scaled
(entered in QUICK SETUP) according to: SCALE 4 mA

(0%), SCALE 20 mA (100%) (see fig. 5).
**** OUTPUT I (mA) is display option.

Will represent the level of refrigerant,in 4-20
milliampere, scaled (entered in QUICK SETUP)
according to: SCALE 4 mA (4 mA), SCALE 20 mA

(20 mA) (see fig. 5).

zh

距离

进入Menue system (菜单系统)
进入 QUICK SETUP (快速设置）

13

© Danfoss | DCS (ms) | 2020.12

AKS 4100

单位随距离/液位
读数而变化：
m、cm、mm、in、ft

*

切换选项：
Distance（距离） *
Level（液位）液位**
Output（输出）(%)***
Output（输出）(mA)****

① 4 – 20 mA 输出（以柱状图和百分比[%]显示）

② 测量值名称(本例中为距离)

③ 设备名称

④ 测量读数和单位

⑤ 设备状态（标记）
标记1、2和3（错误）
硬件问题；信号转换器硬件有缺陷。请联系丹佛斯。

标记4和5（通知）
根据不同的液位，标记为开或关。只用于丹佛斯服

务信息。

⑥ 按键

⑦ 闪烁的星星，表示设备正在工作。

* “Distance（距离）”是一个显示选项。

若将显示设为“Distance”，则显示的值是参照点至
制冷剂液面顶部的距离（参考图 6）。

** “Level（液位）”是一个显示选项。

若将显示设为“Level”，则显示的值为：
探头长度（在快速设置中输入） – 距离（参考图 6
）。

*** “Output（输出）(%)”是一个显示选项。

将以百分比形式显示制冷剂的液位，根据下列条件确
定标度（在快速设置中输入）：
SCALE 4 mA(0%)，SCALE 20 mA(100%)（参考图6）。

**** “Output（输出）(mA）”是一个显示

选项。
将以 4-20 毫安显示制冷剂的液位，根据下列条件确
定标度（在快速设置中输入）：
SCALE 4 mA(4 mA)，SCALE 20 mA
(20 mA)（参考图 6）。

AN23828644201102-000501 | 5

jp

メニュー システム に移 動
クイックセットアップ
に移動

13

距離

距離/レベル読み値
の単位を変更:

m、cm、mm、
イ ン チ 、フ ィ ー ト

AKS 4100

*

以下のいずれかに変更:

距離*
レベル*
出力 (%)***
出力 (mA)****

4 – 20 mA 出力をバーグラフとパーセンテージ



[%] で表示

計測名 (この例では「距離」)



装置タグ名



計測読み値と単位



装置ステータス (数値)



数値 1、2、3 (エラー)

ハ ードウェアの問題; 信号変換器 ハードウェアが故障。
Danfoss にご連絡ください。

数値 4 および 5 (通知)

レベルに応じて数値がオンまたはオフになります。
Danfoss のサービス情報としてのみ使用します。

キーパッド ボタン



点滅する星印は装置が動作中であることを示します。



* 「距離」は表示オプションです。
表示が「距離」に設定されている場合、表示

点から液体冷媒の上面までの距離になります (図 6 を参
照)。

** 「LEVEL ”レベル”」は表示オプションです。
表示が「LEVEL ”レベル”」に設定されている場合には、
表示される値は以下のようになります:プローブ長さ (高
速 設置で入力) – 距離 (図 5 を参照)。

***「OUTPUT (%) “出力(%)”」は表示オプションです。 冷媒
のレベルを (クイックセットアップで入力した) 以
下のスケールを基準としたパーセント単位で表示します:
4mA位置 (0%)、 20mA位置 (100%) (図 5 を参照)。
**** 「OUTPUT I (mA) “出力 (mA)”」は表示オプションです。 冷
媒のレベルを (クイックセットアップで入力した)
以下のスケールを基準として 4～20m A の範囲で表
示します:4mA位置 (4 mA)、 20mA位置 (20 mA) (図 5
を参照)。

される値は基準

ru

Вход в меню системы.
Запуск режима «Быст­рая настройка».

13

Дистанция

Изменение единиц
измерения для
отображения рас­стояния/ уровня:
м, см, мм, дюймы,
футы.

AKS 4100

*

Переключение между:

Расстояние*
Уровень**
Выходной сигнал (%)***
Выходной сигнал (мА)****

 Выходной сигнал 4 – 20 мА отображается на дисплее



в виде графической шкалы и виде процентов (%).

 Наименование измеряемого параметра



(в данном примере это расстояние).

 Модель уровнимера.



Единицы измерения.



Состояние прибора (в виде цифр):



Цифры 1, 2 и 3 (Ошибка)

Проблема с оборудованием; Отсутствие сигнала;
Низкое напряжение. Обратитесь в Danfoss.

Цыфры 4 и 5 (Уведомления)

В зависимости от значения уровня.

Кнопки панели управления



Мигающая звёздочка, показывает, что



прибор работает.

* РАССТОЯНИЕ.
В случае отображения на дисплее параметра
“РАССТОЯНИЕ”, измеряемой величиной будет являться
расстояние между нулевой точкой и поверхностью
жидкого холодильного агента (см. Рис. 5).

** УРОВЕНЬ.
В случае отображения на дисплее параметра
“УРОВЕНЬ”, измеряемой величиной будет являться
разница значений “ДЛИНА ТРОСА” (вводится при
“БЫСТРОЙ НАСТРОЙКЕ”) – РАССТОЯНИЕ (см. Рис. 5).

*** Выходной сигнал (%).
Указываетпроцент заполнения сосуда холодильным
агентом в зависимости от значения:
Точки 4 мА (0%) и Точки 20 мА (100%)
(см. Рис. 5) (указываются при “БЫСТРОЙ
НАСТРОЙКЕ”).

**** Выходной сигнал (мА).
Указывает уровень холодильного агента в сосуде, в
соответствии с диапозоном
4 – 20 мА, в зависимости от значения:
Точки 4 мА (0%) и Точки 20 мА (100%)
(см. Рис. 5) (указываются при “БЫСТРОЙ
НАСТРОЙКЕ”).

6 | AN23828644201102-000501

© Danfoss | DCS (ms) | 2020.12

ENGLISH

Please observe that AKS 4100/4100U is

intended to always be* installed in a
standpipe (column/bypass/stilling well).
A standpipe is commonly used when:

• Servicing the AKS 4100/4100U

• There is highly conductive foam in the tank.

• The liquid is very turbulent or agitated.

AKS 4100/4100U Coaxial with or without
HMI does not need any change of setting to
operate, unless used in CO2.

Presetting:

4 mA : Probe length - 100 mm (4 in.)
20 mA: 120 mm (5 in.)

Refrigerants

AKS 4100/4100U is designed specifically to
measure liquid level in the most commonly
used refrigerants, including R744 (CO2),
R717(ammonia), HCFC, HFC and non corrosive
gases/liquids.

Basic data

AKS 4100/4100U is a passive 2-wire 4 – 20 mA
sensor that is loop powered.

Supply Voltage

14 – 30 V DC min/max. value for a max. output of
22 mA at the terminal

Load

RL [Ω] ≤ ((Uext -14 V)/20 mA).
– Default (Error output set to 3.6 mA)
RL [Ω] ≤ ((Uext -14 V)/22 mA).
– (Error output set to 22 mA)

Cable gland

AKS 4100 PG 13, M20×1.5 ;
(cable diameter:
6-8 mm (0.24-0.31in.)
AKS 4100U ½ in. NPT

Terminals (spring loaded)

0.5-1.5 mm2 (~20-15 AWG)

Enclosure

IP 67 (~NEMA type 4X)

Refrigerant temperature

-60 – 100 °C / -76 – 212 °F

Refrigerants

The listed refrigerants are qualified and approved
by Danfoss:
R717 / NH3: -40 – 50 °C / -40 – 122 °F
R744 / CO2: -50 – 15 °C / -58 – 59 °F

HCFC:

R22: -50 – 48 °C / -58 – 118 °F

HFC:

R404A: -50 – 15 °C / -58 – 59 °F
R410A: -50 – 15 °C / -58 – 59 °F
R134A -40 – 50 °C / -40 – 122 °F

Ambient temperature

-40 – 80 °C / -40 – 175 °F
For HMI : -20 – 60 °C / -4 – 140 °F

Process pressure

-1 – 100 barg / -14.5 – 1450 psig
Mechanical process connection with 5 m / 197 in.

Ø2 mm / 0.08 in. stainless cable:
AKS 4100 G1 inch pipe thread.
Aluminium gasket included
AKS 4100U ¾ in. NPT

(Further details in the Technical Brochure)

Mechanical Installation

Preparations prior to Mechanical Installation

Disassemble the Signal Converter from the
Mechanical process connection (use 5´mm hex
key, see fig. 7). Fit the red protection cover on
top of the Mechanical process connection to
protect it againt any moisture or dirt paticles.

Content supplied (fig 1)

 Signal Converter (with or without HMI)
 Mechanical process connection with

5 m / 197 in. Ø2 mm / 0.08 in. stainless wire

 Tube(s)
 Bag with:

End Connector (incl. 3 mm set screws.)
3 mm set crews (1 set screw pr. tube)
Red cover to protect Mechanical process

connection , before Signal converter is
mounted

Setting label.

Assembly of the segmented coaxial probe

Please observe that the stainless

steel wire is not permanently creased
or kinked.

1. Take the end of the stainless wire and feed it
through the center hole of the plastic spacer
located at the top of each tube (see fig. 2).
Feed the entire length of the stainless wire
through the tube and out at the bottom. If
more than one tube; repeat the steps.

2. Assemble the segments of tube  and 

(see fig. 3). Use a 17 mm open-end
wrench to tighten the assembled parts.

3. If more than one tube; repeat the steps

(see fig. 3).

4. Prior to assemble, disassemble signal
converter and mechanical process connection,
and fit red protection cap at mechanical
process connection. Thread the fully
assembled tube onto the mechanical process
connection .

5. Lock each tube by tightening the set screw

 with a 3 mm hex key (see fig. 3).

6. Pull the stainless wire through the end

connector (see fig.4).

7. Attach the end connector to the bottom

of the fully assembled tube.
Tighten the set screw with a 3 mm hex key
(see fig. 4).

8. Pull the end of the stainless steel wire

extending from the end connector with
pliers (see fig. 4) to ensure that the tension in
the signal cable is correct. Tighten the 2 set
screws with a 3 mm hex key to lock the
stainless wire.

9. Cut the stainless wire about 20 mm / 0.8 in.

below the end connector (see fig. 5).

10. Measure the probe length (without the signal

converter) before fitting the assembled probe
in the standpipe (see fig. 6).
Use a torque wrench to tighten the
mechanical process connection
(fig. 1, item 2) to 120 Nm (89 lb/ft).

If factory setting needs adjustment

Probe length, scale 4 mA and 20 mA for HMI
Quick Setup.

Probe length:
See probe length on Danfoss product label or
measure probe length (see fig. 6).

Scale 4 mA: (for max. measuring range)

= Probe Length
– Bottom dead zone (see fig. 6)

Scale 20 mA:(for max. measuring range:)

= Top dead zone (see fig. 6)

Example (AKS 4100)

Given conditions:
Probe length: 1200 mm
Refrigerant: CO2, –35°C

The gas constant Er is always adjusted from
the Quick Setup

Probe length:
= 1200 mm

SCALE 4 mA setting for max. measuring range:
= Probe length (1200 mm)
– Bottom dead zone (see fig. 6)
(170 mm) = 1030 mm (40.9 in.)

SCALE 20 mA Setting for Max. Measuring
range:
= Top dead zone (see fig. 6)
= 120 mm / 4.7 in.

From page 11:

Dielectric constant of refrigerant gas
parameter 2.5.3 GAS EPS.R
= 1.02

How to mount the AKS 4100/4100U Converter
(see fig 7)

1. Unscrew the set and ventilation screws with a
5 mm Hexagon key in the Signal converter.

2. Push the Signal Converter downwards to stop
on the Mechanical process connection

3. Turn the Signal Converter to the wanted
position.

4. Screw the set screw with a 5 mm Hexagon key.

5. Screw the ventilation screw with a 5 mm
Hexagon key.

Electrical installation/connection

Output terminals (fig. 8 and 9):

1. Current output –

2. Current output +

3. Grounding terminal

Electrical installation procedure

1. Use a 2.5 mm Allen wrench to loosen the
cover stop.

2. Remove the terminal compartment cover
from the housing.

3. Do not disconnect the wire from the
terminal compartment cover.
Put the terminal compartment cover
adjacent to the housing.

4. Connect the wires to the device.
Tighten the cable entry glands.

5. Attach the terminal compartment cover
to the housing.

6. Use a 2.5 mm Allen wrench to tighten the
cover stop.

Note:
The signal converter can be programmed
with or without mechanical process connector
assembled.

Start up:

• Connect the converter to the power supply.

• Energize the converter.

Devices with the HMI display option only:

After 10 seconds the screen will display "Starting
up". After 20 seconds the screen will display the
software version numbers. After 30 seconds the
default screen (fig. 13) will appear.

Precausions when changing from
AKS 41/41U to the AKS 4100/4100U:

Please note:

The AKS 41/41U can be used with AC and DC
supply, but the AKS 4100/4100U can only be
used with a DC supply. Follow the instructions

in fig. 10.
Connecting to controller or PLC

Follow the instructions in fig. 11 or 12.

Note:

The current output will be set to 3.6 mA
whenever the AKS 4100/4100 detects an
error like Marker 1, 2 or 3 (see page 5).

Quick Setup →

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Note:
The signal converter can be programmed with or without mechanical process connector assembled.

Quick Setup (all values below are only examples)

When CO2 is used:

• Connect the device to the power supply
(see the section "Electrical installation/
connection").

• Press 3 times.

AKS 4100

QUICK SETUP?

YES NO

• Press

AKS 4100
PROBETYPE
SINGLECABLE

• Press or to select between SINGLE,
COAXIAL D14 and COAXIAL D22. Choose
COAXIAL D14 and press to confirm.

AKS 4100

LIQUID CO2?

YES NO

• Press (YES) to confirm

AKS 4100

GAS EPS R?

001.000

• Press to change GAS EPS.R.
(Select the correct value from the tables
on page 8)
Press to change cursor­ position.

Press to decrease the value or to
increase the value.

• Press to confirm.

AKS 4100
PROBE LENGTH
05000 mm

• Press to change the PROBE LENGTH.
Press to change the position of the
cursor.
Press to decrease the value or to
increase the value.
Press to confirm.

AKS 4100
SCALE 4mA
04946 mm

• Press to change of SCALE 4 mA.
Press to change the cursor position.
Press to decrease the value or to
increase the value.
Press to confirm.

AKS 4100
SCALE 20mA
00070 mm

• Press to change of SCALE 20 mA.
Press to change the cursor position.
Press to decrease the value or to
increase the value.
Press to confirm.

AKS 4100

QUICK SETUP

COMPLETED IN 8

• Wait for QUICK SETUP to complete.
Count down from 8 sec.

AKS 4100

1.0.0

QUICK SETUP

• Press to confirm.

AKS 4100

1.0.0

STORE NO

• Press or to select between
STORE NO or STORE YES.
Press to confirm.

Default screen appears:

DISTANCE
5000 mm

AKS 4100

Quick Setup completed

You have the possibility of checking
your settings by pressing twice.

COAXIAL D14 2200 mm
(0%) 4 mA 1900 mm
(100%) 20 mA 70 mm

Press

AKS 4100

to return to

default screen.

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© Danfoss | DCS (ms) | 2020.12

For all other refrigerants:

• Connect the device to the power supply
(see the section "Electrical installation/
connection").

• Press 3 times.

AKS 4100

QUICK SETUP?

YES NO

• Press

AKS 4100
PROBETYPE
SINGLECABLE

• Press or to select between SINGLE,
COAXIAL D14 and COAXIAL D22. Choose
COAXIAL D14 and press to confirm.

AKS 4100

LIQUID CO2?

YES NO

• Press (NO) to confirm

AKS 4100
PROBE LENGTH
05000 mm

• Press to change the PROBE LENGTH.
Press to change the position of the
cursor.
Press to decrease the value or to
increase the value.
Press to confirm.

AKS 4100
SCALE 4mA
04946 mm

• Press to change of SCALE 4 mA.
Press to change the cursor position.
Press to decrease the value or to
increase the value.
Press to confirm.

AKS 4100
SCALE 20mA
00070 mm

• Press to change of SCALE 20 mA.
Press to change the cursor position.
Press to decrease the value or to
increase the value.
Press to confirm.

AKS 4100

QUICK SETUP

COMPLETED IN 8

• Wait for QUICK SETUP to complete.
Count down from 8 sec.

AKS 4100

1.0.0

QUICK SETUP

• Press to confirm.

AKS 4100

1.0.0

STORE NO

• Press or to select between
STORE NO or STORE YES.
Press to confirm.

Default screen appears:

AKS 4100
DISTANCE
5000 mm

Quick Setup completed

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How to force mA output (all values below are only examples)

Default screen

DISTANCE
5000 mm

AKS 4100

• Press

AKS 4100

1.0.0

QUICK SETUP

• Press

AKS 4100

2.0.0

SUPERVISOR

• Press

AKS 4100

2.0.0

___________

Enter password:

AKS 4100

2.1.0

INFORMATION

• Press

AKS 4100

2.2.0

TESTS

• Press

AKS 4100

2.2.1

SET OUTPUT

• Press

AKS 4100

SET OUTPUT

3.5 mA

• Press to decrease the value or to
increase the value.
Press to confirm.

AKS 4100

SET OUTPUT

8 mA

• Press 4 times to return to default
screen.

Default screen appears:

AKS 4100
DISTANCE
5000 mm

Force mA completed and disabled

Optional Procedure

If the temperature condition in the stand pipe is known, a constant (dielectric constant of the refrigerant gas) can be entered
(parameter 2.5.3 GAS EPS.R), in order to obtain lower Top and Bottom Dead Zone values (see fig. 6).

How to enter dielectric constant of refrigerant gas (all values below are only examples)

Default screen

AKS 4100
DISTANCE
5000 mm

• Press

AKS 4100

1.0.0

QUICK SETUP

• Press

AKS 4100

2.0.0

SUPERVISOR

• Press 4 times.

AKS 4100

2.5.0

APPLICATION

• Press

AKS 4100

2.5.1

TRACING VEL.

• Press 2 times.

AKS 4100

2.5.3

GAS EPS. R

• Press to confirm.

AKS 4100

2.5.3

GAS EPS. R

• Press 3 times.

AKS 4100

1.0.0

STORE NO

• Press or to select between
STORE NO or STORE YES.
Select STORE YES by pressing

Default screen appears:

• Press

AKS 4100

2.0.0

___________

Enter password:

AKS 4100

2.1.0

INFORMATION

• Press to check/change GAS EPS.R.
(Select the correct value from the tables
below and on page 8)
Press to change cursor­ position.

Press to decrease the value or to
increase the value.

AKS 4100

GAS EPS. R

1.066

DISTANCE
5000 mm

Entering the dielectric constant of
refrigerant gas completed

AKS 4100

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© Danfoss | DCS (ms) | 2020.12