Introduction; Maintenance; Clean The Product; Moisture Removal - Fluke 9190A Operator's Manual

Introduction

This chapter supplies information on how to service the Calibrator.
The Calibrator is referred to as the UUT (unit under test) in the calibration
procedures in this Chapter.

Maintenance

Clean the Product

Clean the Product surfaces with a damp cloth and mild detergent. Make sure liquids do
not go into the Product.

Moisture Removal

When the Calibrator is run at a temperature below 0 °C for a long period of time,
moisture can build up in the well. This moisture needs to be removed from the well.
To remove the moisture from the well and the insert probe holes:
1. Remove the rubber well insulator.
2. Set a 100 °C SETPOINT (see Chapter 2).
3. Cool the unit back to ambient.
4. Clean the insert (see "Clean the Insert").
Before you clean or decontaminate the Product with a procedure not
recommended by Fluke Calibration, speak with a Service Center associate
for more information.

Clean the Insert

The insert must be removed and cleaned regularly to prevent the buildup of hard-water
deposits. Hard-water deposits can make it difficult to remove the insert from the
Calibrator . If the insert is stuck in the well, use the special instructions in the "Insert
Installation and Removal Procedure" in Chapter 2.
To clean the insert, remove the insert with the removal procedure in Chapter 2. After the
insert is cool, wipe the insert with a cloth.

Change the Fuses

The Calibrator has a product fuse that protects from overcurrent and a circuit fuse to
protect the 4-20 mA input.
To prevent possible electrical shock, fire, or personal injury,
use only specified replacement parts.
To replace the fuses (see Figure 5-1):
1. Disconnect the mains-power cord from the power-entry module.
2. Open the power entry module or the 4-20 mA fuse holder and remove the fuse
holder.
3. Replace the fuses with exact replacements as indicated in the specifications in
Chapter 1.
Note
Note
Warning
Maintenance and Troubleshooting
5
Introduction
5-3