horiba MV-2000 User Manual

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Mixing Vaporizer

MV-2000

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Instruction Manual

CODE: I031170900

Table of Contents

Questions and Answers:

T
Tammy JordanAug 13, 2025
What to do if the temperature of horiba MV-2000 MV does not stabilize?
- E
  Elizabeth CastilloAug 13, 2025
  If the temperature of the MV (Mixing Valve) is unstable, it could be due to several reasons. First, the PID constants of the temperature regulators may be improper; perform auto-tuning under working conditions. Second, a short circuit in the heater power supply could be the cause; turn off the power and inspect the heater power line. Third, check for thermocouple contact failure by examining the connection of the thermocouples to the temperature regulators and MV. Finally, if the control cycle of the temperature regulators is too long, use temperature regulators with a control period of 1 second or less, or adjust the setting accordingly.
D
Daniel RichardsonAug 18, 2025
What to do if horiba MV-2000 Vaporizers have seat leakage?
- W
  william15Aug 18, 2025
  If you observe seat leakage, indicated by Liquid flow meter output fluctuations when the valve is forcibly closed, consider these potential causes: * The primary pressure may be too high. Reduce it to the specified level. * The forced closing signal might not be input, or the setting signal isn't a minus value. Check the wiring and signal. * The temperature of the MV could be too high. Lower it to the specified temperature. * Ensure the valve cable is connected to the MV or LIQUID FLOW METER. * Piping leaks may also contribute. Pinpoint and fix any leaks present.
M
Michael SimmonsAug 30, 2025
Why does the temperature of horiba MV-2000 Vaporizers MV not stabilize during vaporization?
- A
  Amanda ParksAug 30, 2025
  If the temperature of the MV does not stabilize during vaporization, it could be due to a few reasons. First, the material might be fed in a quantity exceeding the vaporization limit; forcibly close the valve of MV before starting vaporization. Second, the flow rate might be unstable; refer to the countermeasures for unstable flow rate indication. Finally, the liquid might not be vaporizing inside, leading to condensation; check the secondary pressure, temperature, and warm-up time.

horiba MV-2000 Specifications

General

Type	Vaporizer
Model	MV-2000
Manufacturer	Horiba
Power Supply	100-240 VAC, 50/60 Hz
Power	300 W
Max. Sample Flow Rate	1 L/min
Sample Temperature	Up to 200°C

Summary

Preface

Warranty and Responsibility

Trademarks

Generally, company names and brand names are registered trademarks.

Safety Instructions

Warning Label and Its Location

Shows the location and meaning of warning labels on the equipment.

1. Outline

2. Specifications

Supplied Cables

Lists cables provided with the MV-2000 series.

3. External Dimensions

3.1 Without Pneumatic Valve

Shows external dimensions of the MV-2000 without the pneumatic valve.

3.2 With Pneumatic Valve

Illustrates external dimensions of the MV-2000 with the pneumatic valve.

4. Operating Procedures

4.1 Piping and Electric Wiring

Guides on connecting pipes and electrical wiring for the MV-2000.

4.2 Startup and Warm-up

Details the steps for powering on, heating, and stabilizing the MV-2000.

4.3 Vaporization

Explains the process of vaporizing materials using the MV-2000.

5. Peripheral Equipment

6. Procedures for Disconnecting Valve and Heater Cable Connectors

7. Troubleshooting

MV Temperature Instability

Addresses issues with unstable MV temperature and its causes and solutions.

MV Temperature Not Increasing

Details causes and countermeasures when the MV temperature fails to rise.

Temperature Instability During Vaporization

Covers issues with MV temperature stabilization during the vaporization process.

Flow Rate Instability

Addresses issues with unstable flow rates, carrier gas MFC, and liquid flow meter indications.

Seat Leakage

Explains how to detect seat leakage and its associated causes and remedies.

8. Instructions for Handling

9. Other Instructions for Use

9.1 Entry of Air Bubbles

Discusses how air bubbles affect flow rate and vaporization and how to prevent them.

9.2 Clogging by Vaporization

Explains causes of clogging due to vaporization and measures to monitor and prevent it.

9.3 Pressure Loss of Internal Nozzles

Details pressure loss through internal nozzles affecting carrier gas flow rate.

9.4 Valve Travel for Set Temperature

Explains how set temperature affects control valve travel and potential issues.

9.5 Purging Procedures

Provides guidance on purging the liquid material from the piping.

9.6 Temperature Control

Discusses stable temperature control requirements for vaporization and regulator selection.

9.7 Liquid Supply Tank Pressure Setting

Addresses setting liquid supply tank pressure based on installation level differences.

9.8 Gas Moisture Contents (Dew Points)

Recommends low dew points for carrier/purging gas when using water-reactive materials.

9.9 Carrier and Liquid Supply Pressure

Discusses setting supply pressures and potential issues like clogging and backflow.

10. Secondary Heating Piping Example

11. Temperature Regulator Wiring Examples

12. Chemical Content Information (China RoHS)