MS121 – Tester for diagnostics of electromagnetic valves and clutches of vehicle air conditioner compressors

Tester MS121 is a compact device for testing both electromagnetic clutches and control valves of automotive climate systems.

The manufacturer: MSG Equipment

List of relevant cars
Acura

Acura TL

Acura TSX

Acura Rl

Alfa Romeo

159

147

Mito

156

Aston Martin

DB7

Audi

A3

A6

A1

A4

Q3

Q5

Bentley

Continental

BMW

3 series

5 series

x1

x2

x3

x4

x5

x6

BUGATTI

Veyron

Caddilac

XT5

CTS-V

Chevrolet

sILVERADO

cRUZE

AVEO

Chryslser

300C

Citroen

C5

C4

DS3

Dodge

Durango

Challenger

Dart

Grand

Caravan

Ferrari

458 Italia

Berlinetta

Enzo

Fiat

Tipo

500

Doblo

Ford

Focus

F-150

Escape

Fiesta

Geely

MK

Panda

GMC

Terrain

Sierra

Canyon

HONDA

Civic

CR-V

Accord

Hyundai

Elantra

i20

Verna

sonata

Sonata

Infinity

FX35

Q50

EX

M

Jaguar

XJ

XF

XJR

Jeep

Wrangler

Grand Cherokee

Kia

Soul

Optima

Sorento

Rio

Land Rover

Range Rover

Defender

Lexus

RX350

ES350

S

Maserati

Quattroporte

Mazda

3

6

rx-8

Mercedes

C-class

S-class

A-class

B-class

Mini

Cooper

One

Peugeot

306

407

406

106

Porsche

911

Cayene

Panamera

Reanult

Clio

Kwid

Twingo

Megane

Symbol

Fluence

Laguna

Koleos

Saab

9-3

Subaru

Outback

Forester

XV

iMPREZA

WRX

Suzuki

Swift

Vitara

Aerio

SX4

Grand

Vitara

Tata Motors

Indica

Indigo

Safari

Tesla

s

3

x

Toyota

Corolla

Auris

Avensis

Camry

RAV-4

Volkswagen

FOX

LUPO

POLO

GOLF

JETTA

PASSAT BORA

Phaeton

Tiguan

Touareg

Caddy

Volvo

V40

V60

S40

XC70

S80

MS121 – Tester for diagnostics of electromagnetic valves and clutches of vehicle air conditioner compressors

Supply voltage

10 – 16V/5А

Supply type

battery, vehicle power network.

Dimensions (L×W×H), mm

167×88×27

Weight, kg

0.2

Automatic clutch polarity selection

yes

Short circuit protection

yes

Clutch testing

Voltage of tested electromagnetic clutches, V

12

Types of tested electromagnetic clutches

- diode

- no diode

Tested parameters of electromagnetic clutches

- presence of diode

- current consumption

- open circuit

- short circuit

Testing current, max А

5

Control valve testing

Types of tested electromagnetic valves

- diode

- no diode

Tested parameters of electromagnetic valves

- duty cycle (rate of valve opening)

- consumption current

- open circuit

- short circuit 

Adjustment range of valve opening 

20%...95%

Testing current, max А

1,2

MS121 – Tester for diagnostics of electromagnetic valves and clutches of vehicle air conditioner compressors

MSG Equipment Catalogue 2024 en 4.82M
MSG Specinstrument Catalogue 2024 en 1.72M
User Manual MS121 en 2.21M
Reviews